Grundig 1510 Dead - intermittent. Crack in print.
Grundig 7890 Loss of 45v rail IC430 TDA8350Q
Grundig 8787 dead RU05 & RU15 resistors sprung open & fuse VU09 o/c no other ff
Grundig 1000 series No power up TR540 BC847 in micro reset circuitry.
Grundig 1001 series No green BC847 near to the Y/C proc IC
Grundig 1002 series No colour ripple
on Pin 39 of IC800 the Y/C chip. Resoldering the components in this area
cured the fault even though nothing looked dry jointed.
Grundig 1003 series Field collapse HT feed R200 a 4R7, no apparent reason for it's
failure.
Grundig 1004 series Excess Green sm cap C904 1n between base and emitter of the o/p tr
Grundig 1510B Sound - intermittent or no sound. Poor joints on speaker wires.
Grundig 1510GB Dead. C863 leaky.
Grundig 1510GB Intermittent or no colour. R587.
Grundig 2275 LINE WOBBLE , WORSE WHEN COLD C2731 ( 100uF , 63V ) ON DEFLECTION PANEL
Grundig 2401 Tripping CHECK L-O-TRANS & L519
Grundig 2401 TRIPS L519 SHORTED TURNS
Grundig 3022 No sound. Line osc IC.
Grundig 3402 Switching on problems - Hum. Relay contacts jammed o/c.
Grundig 3500 Chassis No tuning , check pins 13 , 15 of tuner/IF for tunin If stuck at 30v replace SDA3202 and SDA2516
Grundig 5010 Frame - int frame collapse or bounce L447.
Grundig 55 245 BLOWS LOP. TRANSISTOR ( MAY RUN FOR SHORT TIME. ) CHECK 220mfd BASE DRIVE
Grundig 6010 Tripping. LOPTX
Grundig 6100 No picture - sound ok. D2764 ( SKE2F1 ) o/c.
Grundig 6100 Tuning drift. Warped cabinet pushing onto p/b unit.
Grundig 6210GB Int no colour. C861 , C863 leaky.
Grundig 63 - 270 LINE PHASE OFF TO RIGHT C 514 150 pf 1600v ( FEED FROM LOPT TO PIN 10 OF DEFLECTION MODULE. )
Grundig 6415 Loss of sync - int. IC TMS3755 IC on 'abstimm baustein' module.
Grundig 6610GB Int no colour. C861 , C863 leaky.
Grundig 70 340 BLOWS P.SUPP CHECK C667
Grundig 717 No raster - distorted sound. DL701/703 C708/709.
Grundig 7400 Int loss of sound & picture. DJ on IC681 ( MC78M15CT ) 15v reg to IF strip.
Grundig 7400 No picture. D2751 on deflection module.
Grundig 80 Smeary picture - intermittently. Luma delay line leaky.
Grundig 8240 Lack of blue. R1958 o/c.
Grundig 8610 Hum bar effect at centre & width reduced. +D ( 36v ) supply reservior cap.
Grundig 8632GB Blank screen - sound ok. DI1948.
Grundig 8632GB Intermittent colour. C861 , C863 leaky.
Grundig 8632GB Raster - int blank screen - sound ok DI1948.
Grundig 8636 Bright line in centre over picture. C468 ( 15u f , 25v )
Grundig 9050 Project Raster - blank - int blank raster. Cracks on main board left of tuner/i.f can by hole.
Grundig 9050 Project Sound - int sound. Cracks on main board left of tuner/i.f can by hole.
Grundig A3106 No luminance. Dirty contact on pin 11 of IC2594.
Grundig CUC Dead - blowing BU208 & TDA4600. R646 ( 270k ) , replace with carbon film type.
Grundig CUC 6360 / CUC 6361/ CUC 6365 Intermittent no picture, it would fade out with the width getting smaller.
HT 150volts was down to 100volts. C672 100 MFD @ 250VW
Grundig CUC 6360 / CUC 6361/ CUC 6365 No picture, but HT / EHT all ok, picture was blanked out. CT5066 BC858. This is a s.m. device on the video processing pcb. It is on p22 of ic 5040.
Grundig CUC120 Blank raster & muted sound. Drys in IF unit try on pin 12 were 12v supply comes in.
Grundig CUC120 Dead - BU208 s/c. Check for C633 ( 100uf ) s/c , R646 , replace C631.
Grundig CUC120 Dead. C633 ( 100u f ) s/c.
Grundig CUC120 FIELD FAULTS C2768 D2761 R2761 6R8 PRESETS OR TDA1770
Grundig CUC120 Frame collapse - sound ok. D2764 ( SKE2F1 ) o/c.
Grundig CUC120 Frame distortion. IC TDA1770 if used , D2761 ( SKE4G1/04 ) , R2761 ( 6.8ohm , .75W )
Grundig CUC120 Int luminance C2527 0µ1 faulty
Grundig CUC120 Interference at sides. IC TDA2595 sync/line osc IC.
Grundig CUC120 Intermittent going into standby. Change R647 to ceramic.
Grundig CUC120 Intermittent shut down. Dry joints on L631 off base of chopper Tx.
Grundig CUC120 Intermittent shut down. IC TDA4600 plus check drys on L631 off base of chopper Tx.
Grundig CUC120 Lack of frame at bottom when cold. C2768 ( 100uf ) on deflection PCB.
Grundig CUC120 No cold start C626 reservoir cap o/c
Grundig CUC120 No luminace. D2536 ( IN4148 ) leaky.
Grundig CUC120 No picture - EHT & sound ok. D2764 ( SKE2F1 ) o/c.
Grundig CUC120 No sound C2408 1000µ s/c; R2408 o/c 3R9 on audio board
Grundig CUC120 Startup - no start up. IC TDA4600 plus check drys on L631 off base of chopper Tx.
Grundig CUC120 Startup - takes a long time to come on. C626 reservoir cap.
Grundig CUC20/30 Blue screen only dry joints IC61050, IC61060, & IC61040 regs
Grundig CUC2000 line collapse could be o/c winding N & L on Ipsalo tfmr
Grundig CUC2030 Hor black & white lines & no tuning Sound MSP chip faulty - causing corruption to data lines
Grundig CUC2030 Menu access & child lock hold the vol+ button on the remote and switch on the tv via
the on/ off switch.this results in the language menu coming up. if you then press ok the set goes straight to auto tune mode. if you then press text this stops auto tune and allows you access to all menus.entering the code 7038 cancels lock?
Grundig CUC220 Dead - intermittent. R646 ( 270k ) on PSU.
Grundig CUC220 Display - intermittent incorrect channel disp IC663 ( 5v reg )
Grundig CUC220 Excess col & brightness when heated OK when Txt pcb dis'd - left it this way
Grundig CUC220 Frame collapse. R2779 ( 18k ) o/c remove to check.
Grundig CUC220 Frame distortion. IC TDA1770 if used , D2761 ( SKE4G1/04 ) , R2761 ( 6.8ohm , .75W )
Grundig CUC220 Goes straight off at sw on odd characters in display - HT = 180v (109v) HT pot int
Grundig CUC220 Horizontal shaking. Tuner/IF dry joints , check the electrolytics with freezer
Grundig CUC220 INT START UP C631 100uF 40v , C633 220uF , C647 1uF , C642 100uF + R646 270k
Grundig CUC220 int start up TDA4600
Grundig CUC220 Interference at sides. IC TDA2595 sync/line osc IC.
Grundig CUC220 Lack of frame at bottom when cold. C2768 ( 100uf ) on deflection PCB.
Grundig CUC220 No pic at switch on - looks like its off tune C2221 ( 1uf 63v ) in tuner/if unit.
Grundig CUC220 No vision with raster and sound. T2533 , Adj control SB , R2536 , C2536 , D2536 , D2532
Grundig CUC220 Pulling/Rolling C2216/2221 1µ 63v in IF can by TDA5500 chip
Grundig CUC220 Shutdown - intermittent switching off. Dry R646 ( 270k ) , TDA4600 , replace HT pot R647 ( 2.5k )
Grundig CUC220 Standby - intermittent going into standby. Change R647 to ceramic.
Grundig CUC220 Standby- intermittent going into standby. IC663 ( 5v reg )
Grundig CUC220 Startup - switch on problems & hum. Relay contacts jammed o/c.
Grundig CUC2200 Small pulsating raster. Di614 ( 75v zenor ) in cutout circuit rev leak around 100k
Grundig CUC2201 Int trips at sw on R637 1k set HT pot
Grundig CUC2201 Tripping - then comes on. Set HT control R637 ( 1k )
Grundig CUC2201 Tripping, thumping noise & no display Combi tfmr o/c sec windings N & L
Grundig CUC2400 Dead. BU508D.
Grundig CUC2400 Flashing & intermittent picture. Poor contact on CRT base board , & cap shorting.
Grundig CUC2400 LOW SOUND TUNER FAULTY
Grundig CUC2400 NO BLUE R769 ON TUBE BASE OC
Grundig CUC2400 No Blue R760 15k on crt base o/c
Grundig CUC2400 St/by only 4M7 resistor in psu connecting the 2 earth rails o/c
Grundig CUC2400 Sync - intermittent frame sync or bounce. MOD available.
Grundig CUC2400 Tuning - will not tune in. 5v rail down to 4v , IC676 ( MC78MQ5CT )
Grundig CUC2401 BU508 getting too hot. Change TDA8140.
Grundig CUC2401 Dead R637 1k HT Preset hi res
Grundig CUC2401 Dead - faint tripping heard Dry joints LOPTx
Grundig CUC2401 Dead HT oK at PSU o/p No HT at LOPTx - pri winding o/c
Grundig CUC2401 Dead psu tries but fails to start C633 100µ 25v o/c
Grundig CUC2401 Dead with silent tripping D666 in snubber network s/c
Grundig CUC2401 Dead. D666 s/c.
Grundig CUC2401 Goin into standby after few mins. LOPTX ( If comes on agn from cold ) freezer dont work!
Grundig CUC2401 Int dead HT pot R367 1k
Grundig CUC2401 INT FIELD COLLAPSE D2758 INT OC
Grundig CUC2401 Int loss of pic caused by field collapse 26v supply pin 8 TDA2655B was only 4v - D2758 BY298 & C2758 1000µ replaced
Grundig CUC2401 Int start up TDA4600 chopper chip
Grundig CUC2401 Int switches to st/by Tripler
Grundig CUC2401 Low controllable sound Tuner
Grundig CUC2401 No pic - blanked out Field only half normal height due to supply only 10v to field chip - R525 0R33 hi res
Grundig CUC2401 No pic - sound ok No vid o/p pin 8 TDA3566 - Tr2523 BC548C s/c
Grundig CUC2401 No raster - line collapse LOPTx o/c
Grundig CUC2401 No sound C2276 ( 470uf ) s/c.
Grundig CUC2401 No sound TBA130 chip not working due to C2276 470µ s/c
Grundig CUC2401 No sound Could be TDA2595, TDA130 or SDA2011-A003 micro
Grundig CUC2401 No sound or - Picture - intermittent. Suspect the set-EHT control ( especially if made by Preh.
Grundig CUC2401 SET GOES TO STBY VERY INT TRIPLER US
Grundig CUC2401 Sound - mutes on video rec playback. Mod ABL module.
Grundig CUC2401 Standby - intermittent shut down. Set HT control R637 ( 1k ) may check Ok.
Grundig CUC2401 Startup - failure to start intermittent. Set HT R637 ( 1k ) may ch Ok , LOPTX if going off af few mins
Grundig CUC2401 Switching to standby - my take days. Tripler.
Grundig CUC2401 Tripping - at switch on - may come on. C661 ( 7u f , 25v )
Grundig CUC2401 Tripping - at switch on. R637 1k control.
Grundig CUC2401 Trips at sw on L519 shorted turns
Grundig CUC2410 AGC fault - dist pic on good signal Video discriminator coil on IF F2211
Grundig CUC2410 dead - spillage Replace 1.25 & 2.5A fuses, chopper tr BU508A. Now works but R616 2k7 start up res overheats - R617 thermistor u/s. Code 07902 - WVE
Grundig CUC2410 no pic, sound & txt ok blank raster no vid i/p at pin 8 TDA3566 - BC 548C Tr2523 s/c c-e
Grundig CUC2410 NO SOUND TDA2595 MUTING SET
Grundig CUC2410 No sound - may have had a flash over. IC TDA2595
Grundig CUC2410 No startup - may try at first. C633 ( 100u f , 25v ) o/c.
Grundig CUC2490 Comes on with the volume at max. No adjustment of volume is possible. Push "N" in the keyboard, set the balance in the middle and adjust volume to the desired level. It should work O.K after this.
Grundig CUC2490 Comes on with the volume at max. No adjustment of volume is possible. Push "N" in the keyboard, set the balance in the middle and adjust volume to the desired level. It should work O.K after this.
Grundig CUC2490 No sound. Short pins 1,3 of TDA6200 with 13,15 repectively.If sound comes on, replace TDA6200.
Grundig CUC2490 No sound. Short pins 1,3 of TDA6200 with 13,15 repectively.If sound comes on, replace TDA6200.
Grundig CUC2500 Sometimes switches to St-by. Eventually does not startup at all. Replace TDA3640 chip
Grundig CUC2500 Sometimes switches to St-by. Eventually does not startup at all. Replace TDA3640 chip
Grundig CUC2600 Dead - no o/p from psu C631 100µ in psu
Grundig CUC2600 Int blank raster or snowy pic Tuner
Grundig CUC2600 Tuner - snow or blank raster from cold. Drys in tuner.
Grundig CUC2800 Arcing from LOPTx former to adjacent components Tripler faulty
Grundig CUC2800 Dead - psu working ok Relay contacts
Grundig CUC2800 No sound Check TDA6200 sound proc & U2829B sound dem chip
Grundig CUC2800 Sound from one chan only & no brill adj Micro SDA2011-A005 faulty
Grundig CUC2800 Sound low & dist U2829B IC sound chip
Grundig CUC2800 The tripler had failed. After replacing it the set Microcontroller chip type SDA2011 -AOO5 . Make sure that you get the right one for the set.
Grundig CUC3300 POOR FOCUS OR PICTURE SO DIM IT CAN HARDLY BE SEEN C433 1000uF 25v ( NOT 16v AS ORIGINALLY FITTED ) DO NOT RUN SET IN THIS CONDITION AS THE SCAN COILS MAY OVERHEAT AND CRACK CR
Grundig CUC3300 Poor purity & focus. C433 ( 1 , 000uf , 25v )
Grundig CUC3300 CUC3400 Poor focus Usually the focus pot on tripler faulty but check C433 1000µ for s/c, if its 16v working - fit 25vw (can cause scan coils to overheat)
Grundig CUC3400 +B decreasing when average brightness of picture increases. Change C611 47uF cap.
Grundig CUC3400 +B decreasing when average brightness of picture increases. Change C611 47uF cap.
Grundig CUC3400 Arcing/random chan change tripler
Grundig CUC3400 Blue raster with fb lines TDA3505 vid proc chip IC9531 on chroma board
Grundig CUC3400 Blue raster with flyback lines. TDA3505 video processor chip IC9531
Grundig CUC3400 dead on/off sw u/s CHS - G102
Grundig CUC3400 Dead - & tripping. Set HT control ( R637 ) int o/c , D666/D664 s/c , IC686 78M05
Grundig CUC3400 Dead - all fuses intact D691 BYV28/100 s/c (20v supply)
Grundig CUC3400 DEAD 800mA FUSE BLOWN DRY JOINTS ON CHOPPER TX CHECK D663 664 666 C653 4n7 C667 2u2
Grundig CUC3400 Dead or tripping Set HT pot R637, D666 BYV16 s/c, D664 BA159 s/c or IC686 78M05 s/c
Grundig CUC3400 Dead with buzz from Ipsalo Tfmr The +M supply ok at 11v in st/by but dropped instead of increasing to 20v when sw on. C630 0µ68 leaky
Grundig CUC3400 Dead, 800mA SI642 fuse o/c, chopper T661 BUT11A s/c Check for dry joints Ipsalo tfmr or D663, 664 & 666 faulty also check C667 2µ2
Grundig CUC3400 Dead. Drys on main PCB.
Grundig CUC3400 Int colour & rh side of pic blanked TDA2579 timebase chip
Grundig CUC3400 Int dead Pin 0 on lopt (eht overwind) arcing internally - new lopt reqd
Grundig CUC3400 Int or perm tripping - ok on dummy load Timing cap C653 4n7
Grundig CUC3400 No chan change when cold - display changes ok tho' Dry joint pin 15 tuner/if socket
Grundig CUC3400 No sound C266 1000µ 25v s/c; R367 8R2 safety res o/c
Grundig CUC3400 No start up - ticks C653 4n7 connected to pin 15 of power chip u/s
Grundig CUC3400 No start up with ticking HT at chopper coll - C653 4n7 connected to pin 15 power chip u/s
Grundig CUC3400 Poor purity & focus. C433 ( 1 , 000uf , 25v )
Grundig CUC3400 Poor R/C response R1212 33R missing in sensor pcb
Grundig CUC3400 Startup - No s/up - ticking from transformer. C653 ( 4.7nf ) connected to pin 15 of IC.
Grundig CUC3400 tripping set ht pot R637
Grundig CUC3400 Tripping comes on if adj line frequency down. C653 ( 4.7u f )
Grundig CUC3490 Dead o/c HT fuse; s/c chopper tr; sus dry joints pin 5 of daughter pcb
Grundig CUC3490 Dead - chopper tr s/c & fuse o/c C667 2µ2 (2 caps) dry joints or low cap
Grundig CUC3490 Dead - chopper tr s/c, HT fuse o/c Dry joints pin 5 daughter board
Grundig CUC3490 dead no line drive or ht TR651 mains tfmr pins 1-15 o/c, pins 15-17 s/c
Grundig CUC3490 Field fault - non lin with top missing Pin 2 field chip only 12v (24v) C411 1000µ 50v supply smoother u/s
Grundig CUC3490 Field non lin C411 1000µ 50v supply to fop chip leaky
Grundig CUC3490 No pic - sound ok Check A1 volts present on crt base - if not sus leakagein socket
Grundig CUC3490 No sound TDA4480 sound chip
Grundig CUC3490 No sound TDA448C IC sound chip
Grundig CUC3490 No sound R367 o/c & C366 s/c (audio o/p stage supply)
Grundig CUC3500 DEAD HT LOW AT 80v ( 196v ) D635 SC
Grundig CUC3500 No sound/vis - +C volts low at 80v instead of 196v D635 BAT86 s/c
Grundig CUC3500 NO SOUND-VISION CHECK D635 ( BAT86 ) SHORT
Grundig CUC3600 breathes with brill Tripler/focus unit u/s
Grundig CUC3600 Broad white vert bar & SECAM light on BU508A LOPTr overheating. TDA8140 chip faulty - driving it at twice freq
Grundig CUC3600 No pic - dim vert band Check loptr base wfm - if low or twice normal speed check C507 100µ & IC550 TDA8140
Grundig CUC3600 No pic - pic blanked Check supplies & sandcastle pulse. Brill & contrast cont volts at pins 2 & 16 TDA8442 IC350 - if low & won't increase TDA8442 is sus
Grundig CUC3600 No picture - EHT Ok. If pins 2 & 16 do not increase if brit/cont is adj IC350 TDA8442.
Grundig CUC3600 NO PICTURE JUST DIM VERTICAL BAND ON SCREEN C507 100uF OR IC550 TDA8140
Grundig CUC3800 Dark on left, bright on RH side C2582 1µ faulty - lum signal decoupler to pin 15 TDA3505 chip
Grundig CUC3800 EW fault aft tripler replacement R571 4R7 & IC555 E/W chip
Grundig CUC3800 Int switches to SECAM . C507 100uF 25v. Connects to pin 2 TDA8140 line drive IC.
Grundig CUC3800 No sound IC2210 U2829B - fit same type as replacement
Grundig CUC3800 No sound - just hiss IC2110 U2829B sound IF demod chip on sound IF stereo board
Grundig CUC3800 No sound - multistandard TV on wrong setting On front panel press"N", select 0,1,2,3 or 4 with P+/- buttons. Each no. refers to a different std. Press "M" to store
Grundig CUC3800 PICTURE DARK ON LEFT HAND SIDE BRIGHT ON RH SIDE C2582 1uF ON PIN 15 TDA3505 DRIED UP AND OC
Grundig CUC3840 Int dead D661 BYW72 in 12v supply going o/c
Grundig CUC3840 INT DEAD SET COMES BACK ON BY ITSELF D661 BYW72 12v RECTIFIER INT OC
Grundig CUC3850 Dead - HT present , no line & display corrupt IC656 LM317 12v reg not turned on because IC850 micro SDA2080-A003 faulty. When replaced, tripler arcing - proved to be the cause
Grundig CUC3850 Dead - no line drive - 150v HT ok No 12v at TDA8140 drive chip. R661 0R2 burnt out caused by D661 BYW72 leaky
Grundig CUC3850 Pic pulses at random Poor contact plug to Aquadag on crt
Grundig CUC3850 St/by only 2SD1432 LOPTr T572 s/c due to s/c in TDA8140 line dr chip (Don't use BU508A instead of 2SD1432)
Grundig CUC3850 St/by only Check setting of pre-set (standing bias for opto coupler) on vertical st/by panel
Grundig CUC40 Frame collapse. D2758.
Grundig CUC41 Dead - blowing fuse intermittently. D657 ( MZD160 )
Grundig CUC41 Poor contrast T2251 in tuner/if has glue on it's legs , try cleaning it off.
Grundig CUC41 Raster - white. R723 high or o/c.
Grundig CUC41 SOUND NO PICTURE NO LINE DRIVE TDA2595 US
Grundig CUC41 Tripping. R651 in series with set HT control o/c.
Grundig CUC41 Tuning drift C2230 0µ1 surf mount in tuner leaky (across TDA5430)
Grundig CUC41 Tuning drift with 33v down to 28v C2234 0µ1 sm cap in tuner/if leaky - across pins of TDA5430
Grundig CUC41/70 Frame collapse. D353 s/c.
Grundig CUC41/70 If channel changed sometimes snow would appear Check on/off switch momentary contacts
Grundig CUC41/70 Sound - no sound & snow on picture. DJ IC681.
Grundig CUC41/70 Standby - int going into standby. C642 ( 100u f , 10v ) intermittent o/c by TDA4600.
Grundig CUC41/70 Tuner - drift for 1st 10 minutes. If TDA4426 , change C2237 to 22uf , if TDA4427 change IC.
Grundig CUC41/70 Tuner - snow on picture & no sound. DJ IC681.
Grundig CUC41B Intermittent colour when cold. Q2567 ( 4 , 43Mhz Xtal )
Grundig CUC41B Intermittent display at switch on & no memory IC663 ( MC78NI5 ) 15v supply to IC2301 down to 10v.
Grundig CUC41B Memory - channel 1 & 2 losing memory. IC2375 ( MCM2801 )
Grundig CUC41B Memory - no & intermittent display at sw on. IC663 ( MC78NI5 ) 15v supply to IC2301 down to 10v.
Grundig CUC41KT DEAD POWER SUPPLY WORKING TY40164 7812 OC
Grundig CUC41KT Dead. D655 ( BYW76 ) s/c.
Grundig CUC4400 Chan changes & vol varies int IR detector TFMS3300
Grundig CUC4400 ERATIC LINE SYNC C2257 100nF 63v
Grundig CUC4400 Flickering/lines with pic breakup C2257 100n 63v in line osc
Grundig CUC4400 No sound or Picture, EHT normal, screen is black. Change T2213 and T2221 on IF board. No leaks or any other defects were detected.
Grundig CUC4400 No sound or Picture, EHT normal, screen is black. Change T2213 and T2221 on IF board. No leaks or any other defects were detected.
Grundig CUC4400 Poor pic with ringing TDA5931 IC2210 on if panel
Grundig CUC4400 SEVERE PICTURE DISTORTION IN IF STAGE TDA5931 US
Grundig CUC4401 Dead o/p volts from psu low C633 100µ 25v o/c
Grundig CUC4410 Dead - BU508A LOPTr s/c TDA8140 chip giving dist line pulses - chip was casue of problem
Grundig CUC4410 Excess width D7102 ZPD30 in E/W module s/c
Grundig CUC4410 No pic - sound ok - no line drive Comes from IC526 TDA8140 which was dry jointed & faulty
Grundig CUC44R R Dead. C633 ( 100uf 40v ) s/c.
Grundig CUC44R R Dead. Dry joint on R516 by LOPT.
Grundig CUC44R R Frame cramp top & bottom with flyback lines at top D421 ( 1N4935 ) leaky.
Grundig CUC44XX Station ident on all the time. Its a dealer option - sw off by pressing Tv then reveal.
Grundig CUC4511 Thin hum bar causing cogging TDA8140 faulty or C527
Grundig CUC4620 Dead - tripler was arcing replaced K536 tripler; T541; IC500 TDA8140; IC 2340 TDA2579; c541 220MF/40V; D546 BY228
Grundig CUC4620 FIELD COLL R525 0.33R D7001 SC
Grundig CUC4620 Field collapse - partial D7001 s/c, R525 0R33 o/c
Grundig CUC4620 No sound or raster - loptx screams TDA8410 line dr chip u/s
Grundig CUC4635 No NICAM sound - mono sound ok Check wfrm at pins 3,4 & 33 of CF70123 IC2550. If ok at pins 3 & 4 but pin 33 is low dis pin 15 AMU2484 chip. If signal appears at pin 33 then AMU chip is u/s. If not both chips could be faulty - replacement board cheaper.
Grundig CUC4635 No pic aft tripler replacement IC2250 MC144130 chip in NICAM Module (I²C data line low)
Grundig CUC46XX Station ident on all the time. Its a dealer option - sw off by pressing Tv then reveal.
Grundig CUC50 INT FIELD FAULTS CHECK FIELD PRESETS
Grundig CUC52 dead HT but nothing else - D661 BY229 o/c
Grundig CUC52 dead chopper tr & TDA4600 blown - R646 to pin 4 of chip hi res
Grundig CUC5200 Blank white raster with no sound The +B 12v supply low at 8v - T835 BC548 leaky
Grundig CUC53 Blue picture & fly back lines & tripping. T9576 ( BF421 ) s/c , R9573 , R9572 damaged.
Grundig CUC53 Dark murky picture - sound ok. R722 o/c.
Grundig CUC53 Dead. R527 o/c , due to faulty mica washer on BU508.
Grundig CUC53 Dead. D661 ( BYW72 ) o/c.
Grundig CUC53 Display - no LED channel display & no tuning. No 15v supply , IC663 ( TY40163 )
Grundig CUC53 Remote control inoperative. IC1205 ( u PC1373H )
Grundig CUC53 Remote control inoperative. D1201 o/c.
Grundig CUC53 Sound - has rushing noise in back ground. IC2210 ( TBA120T )
Grundig CUC53 Sound - low & no Time base. T503 ( BU508D ) s/c , R527 o/c.
Grundig CUC53 Tripping - then dead. R527 o/c , due to faulty mica washer on BU508.
Grundig CUC53 Tripping. D656 ( BYW76 )
Grundig CUC5301 Dead - fuse blown. Chopper tran T644 s/c , D681 ( BYV38 ) leaky.
Grundig CUC5301 DEAD FUSE BLOWN CHOPPER SC D681 SC
Grundig CUC5301 Field Collapse D401 12v zener s/c and hi ht due to 2 x 47µ caps
Grundig CUC5301 Int pic - sound ok dry joints T568 tr heatsink - mech stressed
Grundig CUC5301 no r/c 4 pin rec u/s - replace with 3 pin version
Grundig CUC5301 OSD dim & outline only - ok when no sigs present IC2541 TDA3566 col dec chip u/s
Grundig CUC5303 PS. Transistor blown. Changed chopper tr, and TDA4605, But they were blown again. Occasionally the set before blowing the smps may run for a while. Check/Replace R632 270K Resistor.
Grundig CUC5303 PS. Transistor blown. Changed chopper tr, and TDA4605, But they were blown again. Occasionally the set before blowing the smps may run for a while. Check/Replace R632 270K Resistor.
Grundig CUC5305 No i/p via scart IC2350 TDA5931-5 on IF pcb
Grundig CUC5310 Dead - T644 chopper tr s/c S1624 wickman fuse in 300v supply o/c, D681BYV38 200v rect on sec psu s/c
Grundig CUC5310 DEAD CHOPPER SC WHEN REPLACED BLOWS AGAIN D681 SC
Grundig CUC5350 No sound at sw on; if vol + on R/C operated sound returns for duration of button press Aerial socket loose was reputed to be the cause !!!
Grundig CUC5350 CUC5360 "P1" DISPLAYED AFTER PROCESSOR CHANGED R836 FROM 10K TO 22K ( OLD SDA 20562 A 006 NEW SDA 20562 A 506 Grundig 8305-157-580 )
Grundig CUC5360 No NICAM sound - whistle on mono sound MSP2400 chip in IF module
Grundig CUC5360 int tuner check for dry joints on xtal
Grundig CUC5360 Store ,tuning , analogue controls inoperative Check memory Ics IC847/8 also bad earths which could be cause of Ics going faulty
Grundig CUC5361 Int rolling/shaking pic Dry joints on earthing frame of chassis
Grundig CUC5361 trips on high brill - no beam lim action beam lim volts to pin 12 RGB module. Volts at pin 15 IC5150 should fall as brill increases. It did but chip was u/s
Grundig CUC5835 Goes straight to st/by at sw on Check for field faults - R7021 4R7 o/c, IC7020 s/c, also replace C7027 220µ 35v flyback cap
Grundig CUC60 No frame - D406 burning up. C643 ( 1000uf 40V ) on frame PCB , D406 ( RGP10G )
Grundig CUC6300 Reverts to st/by aft 3 secs Pin 8 IC811 going low (overvolts prot) - caused by crack in print between conn C & C591/2
Grundig CUC6310 Dead lop tr BU508AG s/c
Grundig CUC6310 dead - led flashes T568 lop tr s/c - replacement failed - C969 9n o/c (blue box type)
Grundig CUC6310 E-W faulty R569 4R7 o/c, L567 line lin coil overheating & faulty
Grundig CUC6330 Greenish blank raster with fb lines No SDL SDA activity - s/c on o/p of IR Rx
Grundig CUC6330 greenish blank raster with fb lines - no oSD no clock pulses on IC811 proc. - s/c on IR Rx o/p IC84001 on front panel
Grundig CUC6330 No pic - crt internal arcing - focus volts too high LOPTx faulty (Konig FAT30329)
Grundig CUC6330 Sync? Reduced line pulse R176 hi res in flywheel timebase
Grundig CUC6360 No sound MSP3410 chip
Grundig CUC6365 Width excessive & poor e-w adj D434 ZPY33 leaky
Grundig CUC6851 Display absent Check fuse Si6010 on mains sw panel for o/c
Grundig CUC70 BLANK RASTER WITH FLYBACK LINES C514 150pF IN LINE MODULE AFFECTING SANDCASTLE PULSE
Grundig CUC70 Dead - blows Chopper tr BU208A D661 s/c; R661 0R15 o/c
Grundig CUC70 FIELD C2791 2757 IF IC FAULTY C2758 SIGNALS C2217 C2221
Grundig CUC70 Field collapse - pic cut off D2758 to pin 5 of field chip leaky
Grundig CUC70 Foldover if ajusting for correct height. C2757 ( 1 , 000uf )
Grundig CUC70 int dead dry joints chopper trfmr
Grundig CUC70 int E-W correction dry joints deflection panel where it plugs into main pcb
Grundig CUC70 Int goes to st/by C642 100µ 10v
Grundig CUC70 Line ringing C622 600µ 63v
Grundig CUC70 LINE TEARING C501 1000uF 25v
Grundig CUC70 NO EHT NO LINE DRIVE NO 12v AS D689 OC
Grundig CUC70 No frame. Frame IC but also check C2758 ( 100uf ) & safety res o/c.
Grundig CUC70 No go - fuse blown. R661 ( 0.15ohm ) secondary side of chopper PSU o/c , TDA4600-2 , Fuse.
Grundig CUC70 No linear frame - kink at bottom on sides. C2791 ( 2 , 200uf or 3 , 300uf )
Grundig CUC70 No picture - 12v B+ rail missing. D689 ( 1N4001 ) o/c.
Grundig CUC70 No signals dry joints IC681 reg on main pcb
Grundig CUC70 No sound R366 ( 82R ) o/c , C366 ( 1 , 000uf ) s/c.
Grundig CUC70 off with a bang s/c mains rect block bew 2.5A fuse
Grundig CUC70 Poor picture with crinkly verticals from cold Check C2217 ( 10u f , 16V ) & C2221 ( 4.7u f , 25V ) in the tin IF module.
Grundig CUC70 Poor sync - sideways scrolling Txt C2216 1µ; C2221 4µ7
Grundig CUC70 Pulling - esp BBC1 & VCR chan - Txt scrolls sideways Replaced 2 x 1µ & 47µ caps in IF/Tuner unit near TDA4442
Grundig CUC70 Ragged verts Line driver supply smoother 1000µ low cap
Grundig CUC70 Reduced frame - with kink at bottom on sides. C2791 ( 2 , 200uf or 3 , 300uf )
Grundig CUC70 SNOW NO PICTURE R2127 180R IN IF CAN
Grundig CUC70 Snow on picture & no sound. DJ IC681.
Grundig CUC70 Sound uncontrollable - full vol - may be int R2250 4k7 preset sound pot int
Grundig CUC70 Tuning - no tuning. C2020 in tuner & T2304 in tuning module.
Grundig CUC70KT BENT VERTICALS WORSE FROM COLD C2731 100u 25v ON LINE/FIELD PANEL
Grundig CUC70KT Dead. D661 ( SKE4G2/06 ) o/c can use SKE4F2/02
Grundig CUC70KT East west - poor. R571 o/c.
Grundig CUC70KT Line - cogging. C662 ( 600u f , 63v )
Grundig CUC70KT No Picture - sound Ok - static on screen. Frame PCB R2756 ( 7R 1/4watt ) o/c if so IC TDA2653A
Grundig CUC70KT Tripping - starts up then trips. D471 s/c can use a BY299.
Grundig CUC720 Dark on bright scenes. C2216 ( 1uf , 63v ) TDA5500 in IF or change can , C2541 ( 2.2uf
Grundig CUC720 Dead - blown 2.5amp fuse. Bridge rectifiers/c D621 ( SKBB380 ) can use a BY179.
Grundig CUC720 Int. won't start, sound ok. Change all small electrolytics on vertical/horizontal PCB.
Grundig CUC720 Int. won't start, sound ok. Change all small electrolytics on vertical/horizontal PCB.
Grundig CUC720 No frame. C2768 ( 100uf ) leaky , R2771 ( 6R8 ) , field to TDA2653.
Grundig CUC720 No sound R2408 ( 3.3R ) on sub PCB , TBA120T in IF must be a 120T
Grundig CUC720 Purity. Th on small mains PCB , C601 ( 0.15uf , 250v )
Grundig CUC720 Teletext - fault - Picture shows at same time C2881 ( 1uf )
Grundig CUC720 Won't start, PS squeals, relay remains open. Change C655 100uF/25V cap.
Grundig CUC720 Won't start, PS squeals, relay remains open. Change C655 100uF/25V cap.
Grundig CUC73 WON'T START UP D663 SC
Grundig CUC7301 Blown psu caused by R661 220R going hi res also replaced IC630 UC3842, T665 MJFS8004, D663 3v6 Zener
Grundig CUC7301 Dead Dry joint C669 blows T665 & IC630
Grundig CUC7301 Dead C669 1000pf dry joints & burnt; MJF18004 T665 s/c; ZD663 had 25R reverse resistance, D624/621 1N4007 mains rects s/c & UC3842AN faulty
Grundig CUC7301 Dead - Chopper T665 blown plus - IC630, D633 3v6 zener, D662 BA157, bridge rects D621-4 1N4007, R661 220R, R663 18R, 3 x sm diodes under psu sect, dry joints C669
Grundig CUC7301 Dead - lop tr s/c & replacement ran hot CT169 BC858B buffer sm leaky
Grundig CUC7301 Dead - R542 10k or 13k o/c When replaced overheated again - crack in print by lopt
Grundig CUC7301 Low sound & no set up menu In hotel mode - to exit - hold down "i" button at sw on
Grundig CUC7301 low sound -stuck in hotel mode hold 'i' button whilst switching tv on. Use rc arrows to select hotel mode then off
Grundig CUC7301 off chopper tr s/c c-b T665 MJE18004C, D664, 666 1N4003, CD654,CD656 LS4148, IC630 UC3842A, D663 6.3v zener, R661 220R replaced & dry joint C669
Grundig CUC7301 off with a bang C669 1000pf had dry joints causing burn up of pcb. Following parts replaced :- 2.5A fuse, IC638 uC3842AN, T665 chopper tr MJF18004C, D662 BA157 s/c, D663 ZPD3.6 3.6v zener s/c, R663 18R, R661 220R hi res, R669 5w
Grundig CUC7301 Pic pulled across to right CT169 BC858B sm leaky
Grundig CUC7301 Poor regulation of psu sm diodes cd 654 and cd656 leaky. They are type
LS4148 but standard 1N4148 ,s work ok.
Grundig CUC7301 Reduced width and line tearing when TV gets hot. Replace surface mount transistor CT169 BC858B
Grundig CUC7301 Reduced width and line tearing when TV gets hot. Replace surface mount transistor CT169 BC858B
Grundig CUC7301 St/by only C667 100µ 35v
Grundig CUC7301 Tripping with front led flashing No HT on dummy load - HT preset R654 470R o/c
Grundig CUC7301 Dead aft few mins - line drive lost Buffer CT169 BC858B sm tr faulty
Grundig CUC7303 Dead - PSU blown Chopper tfmr, S2055 LOPTr & FOP chip
Grundig CUC7303 off burning smell bad joints mains sw
Grundig CUC7303 Won't go fully into st/by - crt heaters stay lit etc Pin 1 IC676 should drop to 1.2v in st/by - was staying at 10.7v. BC848 sm tr downstream from pin 1 was faulty though checked ok
Grundig CUC7305 no vid or sound sm tr CT840 BC848B vid sw tr faulty
Grundig CUC7306 Auto tune problems if auto tune used it defaults to wrong tv standard be aware!
Grundig CUC731KT No start up D633 1N4935 s/c
Grundig CUC7350 "E" instead of "OK" shows when storing Sw on with "Prog -" button depressed to clear "fault"
Grundig CUC7350 Dead Chopper FET & control IC partial cure but all volts low until R60027/8 0R56 1w reistors replaced
Grundig CUC7350 Dead - 2.5A fuse blackened T60020 IRFBC40 chopper tr s/c; D60013 1N4007 mains rect s/c; C60029 dry joints; R60023 1N4003 s/c; R60027 0R56 o/c
Grundig CUC7350 Dead - Chopper FET & 2 rect diodes s/c dry joint on C600 - blew again later due to arcing between FET & heatsink
Grundig CUC7350 Dead IRFBC40 chopper MOSFET failure Dry joints C60029 470pf. Check R60027/28 0R46, R60022 10R, D6011-14 D60023-24 1N4007
Grundig CUC7350 Int start up C60031 100µ 35v in psu
Grundig CUC7350 mains fuse o/c, BUZ chopper tr s/c dry joint C60029 470pf 1.6Kv also check D60011-14 & D60023/4 rects
Grundig CUC7350 No sound check sm trs to left of audio IC - mute sound in st/by & when told by micro - BC848C faulty in this case
Grundig CUC7350 St/by only LM317T reg s/c by its heatsink clip
Grundig CUC7350 Tripping R60027/28 0R46 gone hi res
Grundig CUC7350 Unstable HT R60028 0R68 o/c - check it out of cct!
Grundig CUC7350 Width varies with pic content - HT varies between 119-129v R60027 0R56 in curr sensing network - also check R60028 in parallel - values vary with screen size
Grundig CUC73xx series ST55-725 Power supply blow up Caused by C60029 470pF 1.6KV which was badly dry jointed. Only seems to affect sets fitted with blue cap - the orange ones are ok.
Grundig CUC73xx series ST55-725 Sound faulty the soldered joints on C60029 were very poor
Grundig CUC740 Chopper tr blows instantly R633 27R o/c in base cct - also blew lop tr
Grundig CUC740 Dead - chopper tr blows instantly at sw on R633 27R o/c in base cct - also blew LOPTr
Grundig CUC740 dead - comes on briefly when tapped dry joints chopper tr and surroundings
Grundig CUC740 Dead - S1644 1.25A fuse blown T654 BU208A s/c - check for arcing at C634
Grundig CUC740 Excess width D572 SKE4G2/06
Grundig CUC740 INT CUTOUT , GOING TO SBY OR DEAD D671 5v SUPPLY
Grundig CUC740 Int Dead D671 BY299 in 5v supply int o/c
Grundig CUC740 Int dead or int st/by C633 100µ 25v
Grundig CUC740 Int sound Check if +G supply missing - if so check relay contacts
Grundig CUC740 lines across screen - no sound adj R2741 on Ablenkung pcb
Grundig CUC740 No adj of vol,col,contrast etc IC2335 MC144111 inside IF/Tuner can
Grundig CUC740 Pulling/Rolling - weak sync 2 x 1µ & 1 10µ cap in IF module
Grundig CUC740 Pulling/rolling with weak sync replace 2 x 1µ caps & 1 x 10µ cap in IF module
Grundig CUC740 Sound couldn't be reduced &"88" in display MC144111 IC2335 on tuning pcb
Grundig CUC7530 No H drive (BC848) which is used as a line protector.
Grundig CUC7530 No H drive (BC848) which is used as a line protector.
Grundig CUC770 LINE TEARING CHECK OR CHANGE C501 ( 1000uF , 25V )
Grundig CUC7861 Poor field,no tuning, no col, smeary pic 45v supply low due to R552 2R2 o/c
Grundig CUC7861 Sound from bass speaker weak CT4140 BC849C sm tr o/c
Grundig CUC7861 St/by only - started as line collapse R503 4R7 safety res, TDA8350, D503 BY228 s/c & T572 2SD1432 breaking down under load - also check D502, D438 33v zener
Grundig CUC95 Dead - BU208 s/c. R646 high.
Grundig CUC95 FIELD COLLAPSE R2754 1M PRESET
Grundig CUC95 Field collapse all 3 field pre-set pots had been twiddled & broken - replacement cure
Grundig CUC95 No pic, heaters or EHT - no line pulses from TDA1950 EHT cap had been arcing and caused demise of TB chip TDA1950 & TDA1770 field chip
Grundig G100 Bright white raster - sound ok R315 100R 1/4w fusible o/c
Grundig G1000 bright raster sound ok R316 10R in HT o/c Also replaced rect & smoother to be safe
Grundig G1000 Dead - IC500 ST6365 micro not being reset No reset pulse pin 33 due to either Tr540 BC847 or Tr451 BCX19 sm trs going s/c - replace both
Grundig G1000 Dead - lop tr s/c & high HT (200v) D105 BAS16 sm leaky
Grundig G1000 Dead - no 9v supply R116 fusible o/c IC102 5v reg overheats - C543 sm cap under µ s/c
Grundig G1000 Dead - slowly ticking C104 Mains smoother o/c
Grundig G1000 Dead - tripping D304 BY133 in LOP s/c
Grundig G1000 Dead & ticking D301 BA157 26v supply s/c
Grundig G1000 Instability using SCART i/p Micro chip faulty
Grundig G1000 No lum in txt sm TR653 BC847 leaky b-e
Grundig G1000 No sound R550 4R7 (9v feed to audio chip) TDA2822M IC550 o/c
Grundig G1000 Peak white pic with fb lines R999 100R on crt base
Grundig G1000 pink raster with striations sound/rc ok changed 6 trs on crt base + 3 15k resistors cured it
Grundig G1000 Reduced width with foldover Check line freq is not twice normal - if so micro IC500 75990-200-63 faulty - mod available
Grundig G1000 St/by only D304 BY133 s/c ; R314 6k8 4w o/c
Grundig G1000 To enter service mode Press "P+" & "P-" together at sw on. To choose a funct select menu on r/c. Adj with "P+" & "P-" buttons. Choosing another funct stores setting
Grundig G1000 Unfocused 6 inch wide band down screen only Line freq twice operating freq - cannot be adj - IC500 micro faulty
Grundig GCS100 Dead - blowing fusible resistor. Insulating pad under TY501 leaky.
Grundig GRT550 Dead. T661 ( S668T ) faulty.
Grundig GSC100 Dead - blowing 3.15 fuse - intermittently. EHT cap arcing.
Grundig GSC100 Dead - blowing 3.15amp fuse. EHT cap jumping across to degaussing coil.
Grundig GSC100 Dead. R607 o/c , faulty thyristors , insulation in line o/p stage.
Grundig GSC100 Dead. Di511 or C2502 ( 100u f , 16v ) on EHT control regel baust PCB.
Grundig GSC100 Frame - bottom foldover - cramping at top. R2522 ( 2.2k ) goes high.
Grundig GSC100 IF EHT IS VERY HIGH CHECK DI508 IS OPEN
Grundig GSC100 Line break up. C2502 ( 100uf , 16v ) on EHT control regel baust PCB.
Grundig GSC100 No frame. Di447 ( 1N4007 ) and/or TDA1170.
Grundig GSC100 R607 - repeated resoldering of R607. Di2502 ( 4.7v ) zener.
Grundig GSC200 No results. R607 o/c , R621 o/c , if goes agn few hrs later Di2502 4.7v
Grundig GSC200 Chassis Arcing in picture. Reduced width with torn edges. The HO Transformer has a built in fuse holder which houses a 50mA fuse. (connected in series with the high tension cable). Replace the fuse and clean the contacts.
Grundig GSC200 Chassis Arcing in picture. Reduced width with torn edges. The HO Transformer has a built in fuse holder which houses a 50mA fuse. (connected in series with the high tension cable). Replace the fuse and clean the contacts.
Grundig GSC200 Chassis Black screen, EHT at about 18 KVs. Change Di511.
Grundig GSC200 Chassis Black screen, EHT at about 18 KVs. Change Di511.
Grundig GSC200 Chassis No sound or Picture, led displays not lit.EHT at 18KV. C2607 in relay PCB Sced.Check also D334 and D335 in tuning module as in one case they were found to be Sced together with C2607.
Grundig GSC200 Chassis No sound or Picture, led displays not lit.EHT at 18KV. C2607 in relay PCB Sced.Check also D334 and D335 in tuning module as in one case they were found to be Sced together with C2607.
Grundig GSC700 Int smeary flat picture. Luma delay line leaky.
Grundig GT1401 No sound or pic 5v supply missing because D114 cathode no soldered thro' print
Grundig GT2103 Hum bar mains smoother 47µ 385v o/c
Grundig GT2105 Bright white raster R315 10R on crt base o/c
Grundig GT2105 Dead - HT pulsating Tr302 LOPTr s/c
Grundig GT2105 No Green R908 on crt base & R802 near RGB chip
Grundig GT2105 Unstable pic & sound 33v tuner supply fluctuating at 25v - tuner faulty
Grundig P37-440 Sound - random volume up & down. IR IC TFMS3300 or 4300 with metal screen over it.
Grundig P37-440 Tuning - random channel change. IR IC TFMS3300 or 4300 with metal screen over it.
Grundig P45-440/1GB No pic - sound ok - faint arcing noise dry joints ww res R516 in line stage
Grundig SE7086TOP etc int no sound - when increased gives popping noise Mains sw st/by contacts int
Grundig ST63460 Dim blank raster - no picture. D2334 ( TD190 ) leaky.
Grundig ST63460 DIM BLANK RASTER AND REDUCED HEIGHT D2334 LEAKY IN FIELD CCT
Grundig ST63460 Thin white line in the center of upper half of screen. Change D2334 and D2344 with 1N4148. Caution! They seem to be O.K with a VOM.
Grundig ST63460 Thin white line in the center of upper half of screen. Change D2334 and D2344 with 1N4148. Caution! They seem to be O.K with a VOM.
Grundig ST70-400 Int start up & no R/C - no st/by light R617 10k7 & R616 6k8 both 7w dry joints
Grundig ST70-775DPL No pic via tuner or scart - unable to access menus Re - format eeprom ; On this set you do this by holding down P- as you switch on. This loads the emergency data set. If as on mine this appears to have no effect the set is probably also locked in hotel mode. To rectify this hold the i button on the remote whilst switching on. This will allow access to a limited service menu. Use the arrow keys to scroll down to Hotel Mode and switch it off, then scroll to the bottom of the menu and select end with mem and push ok. Switch off the set and power back up whilst holding the P- key and the eeprom will reformat. Switch off then back on again and select the menu system by pushing i then ok. Scroll down to service menu and push ok, on the next menu scroll down to service code and enter 8500. This brings up the full service menu and all adjustments can be made from there. Note the hardest thing to set is the afc which you select on the menu but adjust with coil 3025 inside the set.
Basically if there is a directional arrow on the service menu under the afc setting you have to rotate the coil in that direction until the arrow disappears. In practice you have to go through this procedure but remembering to memorise all the settings (by selecting end with mem) about 4 times, switching off the set each time.
Grundig STR20A Blank raster sound ok. Check for blob of solder across pins on video/RGB connec
Grundig Super color 8472/8672/8272/8872/9272 R621(6,2ohms) smokes immediately after switch-on. Replace thyristor Ty503 type17127
Grundig Super color 8472/8672/8272/8872/9272 R621(6,2ohms) smokes immediately after switch-on. Replace thyristor Ty503 type17127
Grundig Super color 8472/8672/8272/8872/9272 Won't search. Pin 5 of syntheseizer module, should have 3,5 volts. If not, change R4111 (1,8 volts).
Grundig Super color 8472/8672/8272/8872/9272 Won't search. Pin 5 of syntheseizer module, should have 3,5 volts. If not, change R4111 (1,8 volts).
Grundig Super Color 8615/8415/8215/8115 Won't start, no EHT present. Di518 Sced. It's located behind the large 15uF nonpolar cap.(C532)
Grundig Super Color 8615/8415/8215/8115 Won't start, no EHT present. Di518 Sced. It's located behind the large 15uF nonpolar cap.(C532)
Grundig T51-720 rolling / snowy no field sync Dry joints rf/if module
Grundig T55-730 Black lines across pic - int Blanket resolder around IC501
Grundig T70-440 Bright raster with fb lines TEA5101A RGB o/p chip on crt base & 10R in its supply
Grundig TP400TT Hand Set Few flashes then nothing. 470uf , 8v.
Grundig TVR3700 No pic - sound ok No line timebase - fusible R3584 o/c
Grundig TVR5504 Int dead Dry joints around LOPTx though looked ok
Grundig TVR5504 INT TEXT FLASHES GARBLED TEXT ON TO PICTURE AND PI DRY JOINTS ON EARTHS ON TEXT PCB
Grundig CUC7301/3 Dead after dry joint C669 caused havoc T665 MJF18004C chopper s/c; IC630 µC3842N/AN; D621-4 1N4007; R661 220R; D663 3v6 zener; CD651 ZD18v; D667 BA157 leaky.
Grundig CUC7301/3 Mains fuse S1600 2.5A blows int 1N4007 mains rect diode, also check IC630, T665chopper tr, zener D663, R661220R,Caps C661/663/656 & 667
Grundig CUC7350 Dead - +8v supply absent R61021 15R safety res in 8v reg o/c
Grundig CUC7350 Dead - mains fuse shattered D60013/4 mains rects s/c, chopper FET T60020 IRFBC40 s/c used BUZ90 UC3843 replaced as prec,caused by dry joints chopper tfmr
Grundig G1000 Blank raster and narrow R315 10R o/c - supply to RGB stage also dry joints power trs
Grundig G1000 St/by only No line drive - R314 6k8 2w o/c
Grundig G1000 Tripping with burning smell LOPtx
Note this is information should only be used by a qualified technician.