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Repair tips

Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair

MakeModelProblemSolutionDate
Found: 46
GrundigSTR20ABlank raster sound ok.Check for blob of solder across pins on video/RGB connec14-09-04
HinariPXL100 EtronDead.1R 17watt on small front PCB o/c14-09-04

ITTCT23304 TrimlineLow gain.S/C in tuner IF unit.14-09-04
ITTCT23304 TrimlineNo colourIC870 ( TDA3561 )14-09-04
ITTCT23304 TrimlineSound - low.Resolder DJ in audio stage.14-09-04
ITTCT3436 TrimlineBrightness at maximum.T1412 ( BC546 )14-09-04
ITTTrimline122v rail going low after 1/2 hour.Change T617 ( BC238 ) .14-09-04
ITTTrimlineBars across screen about 1" wide.C1425 ( 2.2uf ) o/c.14-09-04
ITTTrimlineBlank raster.T400 ( BC237 ) or ( BC171 ) part of beam limiter cct.14-09-04
ITTTrimlineDead - relay clicks on - mains on board.Black fat MR856 ( or BYT13/600 ) diode by LOPTX.14-09-04
ITTTrimlineStandby - stuck in standby.TR1401 o/c , on CMC301.14-09-04
ITTTrimlineStandby - stuck on standby.Standby mains transformer Tr1401 o/c.14-09-04
ITTTrimlineStandby - switching to standby.C1419 leaky on CMC301.14-09-04
ITTTrimlineTuning - no tuning.No tuning volts , C1072 o/c , T1414 leaky.14-09-04
Matsui14TR50 F seriesSound but no raster at sw on thens shuts down with LED flashing every 4 secsReplaceR909, R913, R922 180K on tube base, D901 6.2V zener, 100k or could be 180K on tube base, R404 270K on main board.14-09-04
MatsuiVTR161Field dist68k 1/4 watt R425 from pin 3 of fo/p chip IC402 LA7837 was going O/C as the PCB was being flexed.14-09-04
MatsuiVTR161No soundsafety res R 511 6R8 1w - feeds the sound output stage +B rail to the VCR PCB was O/C. This resistor is located at the front of the TV PCB at the bottom & hidden by a large black heatsink carrying a couple of regulators.14-09-04
NordmendeF9 Chassis (Control board with SAA1121/SAA1130/SAA1020)Snow on screen, all leds lit, stuck on UHF band.Change SAA1121.14-09-04
NordmendeSpectra SC63 Chassis ICC8/F23+Dark screen, picture faintly visible in the backgroundCheck replace RT 24/RT44/RT64. Two of them were found to be O.C. However the screen was black instead of preserving one color.14-09-04
OrionTriade 34Dead - blows bridge rectFit 4 x BYD33M, 150µ smoothing cap chopper tr & TEA2261 14-09-04
Philips37TR120Key setThe key set assy has been codified for all b-range tvcr's. This will allow to change the keys without having to change the complete frame. Servicenr. 4822 410 11076. Key set for: 37TR120/01/08 - 37TR126/03/38 - 37TR125/38N - 37TVB10/39N.14-09-04
Philips37TR125Key setThe key set assy has been codified for all b-range tvcr's. This will allow to change the keys without having to change the complete frame. Servicenr. 4822 410 11076. Key set for: 37TR120/01/08 - 37TR126/03/38 - 37TR125/38N - 37TVB10/39N.14-09-04

Philips37TR125/38Codenumber informationA new software version (PTCP2-7) is available for the control uP (IC 7801). Service codenumber is 4822 209 15271. This new version is only used in the following sets: 14PV263/01, 14PV162/01, 14PV162/05, 14PV162/07, 14PV163/05, 14PV163/05H, 14PV263/0114-09-04
Philips37TR126Codenumber correctionThe codenumber of pos. 1701 (tuner) for 14 inch sets with IEC input is 4822 210 10691 (UV916S).14-09-04
Philips37TR126Codenumber correction for deck-up (IC7410)The codenumber for the deckprocessor was wrong in the first Service Manual (4822 726 15451). In service information TVCR96-01 and in the new manual the correct codenumber is given. The codenumber for the deck-up for sets with non-turbo drive is: 4822 14-09-04
Philips37TR126Codenumber informationThe codenumber for the spacer between on/off switch and the knob (pos 3) is 4822 402 10702.14-09-04
Philips37TR126Codenumber informationPlease add following codenumbers to the Service Manual: Lift-flap 37TR126/03 : 4822 443 10413 Spring for lift-flap : 4822 492 7089614-09-04
Philips37TR126Key setThe key set assy has been codified for all b-range tvcr's. This will allow to change the keys without having to change the complete frame. Servicenr. 4822 410 11076. Key set for: 37TR120/01/08 - 37TR126/03/38 - 37TR125/38N - 37TVB10/39N.14-09-04
Philips37TR126Preventive tipIf FET 7352 is found to be defective, it is advised to mount a 15 V zenerdiode (BZX79-C15) between the drain and the gate. Mount cathode to gate and anode to drain. Codenumbers: FET 7352: 4822 130 60838 ZENER (BZX79-C15): 4822 13034281 14-09-04
Philips37TR126Set produces audible noise in stand-byAdd a small LEBL (leading edge blanking) PCB, to avoid auto oscillation of transformer 5330 (or 5331). A modification letter is included with the lable PCB. This PCB is available with service nr. 4822 214 12173. Since production week 9723 this circuit is14-09-04
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