datasheet,schematic,electronic components, service manual,repairs,tv,monitor,service menu,pcb design
Schematics 4 Free
Service manuals, schematics, documentation, programs, electronics, hobby ....


registersend pass
Bulgarian - schematics repairs service manuals SearchBrowseUploadWanted

DatasheetsChassis2modelRepair tipsFulltext searchCables & Connectors
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: 4551
PhilipsGR1AXDead - HT at 8vR3613 120k in startup fet cct hi res14-09-04
PhilipsGR1AXDead - HT ok - no lop activityL5224 supply to line dr discoloured & o/c14-09-04

PhilipsGR1AXDead - LOPTr s/c & replacement lasted 5 minsLine drive wfm dist - L5519 3µ3 in series with o/p from line timebase chip shorted turns14-09-04
PhilipsGR1AXDead - low o/p from psuR3610 & R3613 faulty - caused by D6610 zener in FET gate faulty14-09-04
PhilipsGR1AXDead - no 95v from PSU.D6638 ( BZX79-B36 ) s/c.14-09-04
PhilipsGR1AXDead - no line oscD6030 12v zener o/c14-09-04
PhilipsGR1AXDead - pri HT onlyLoptx o/c winding 1/514-09-04
PhilipsGR1AXDead - psu not starting HT = 15vD6613 15v zener - checked ok out of cct14-09-04
PhilipsGR1AXDead - psu shutdowns/c between pins 1 & 6 of Loptx - replaced14-09-04
PhilipsGR1AXDead - tripped due to high HTR3610 330k in psu hi res14-09-04
PhilipsGR1AXDEAD , NO LINE OSC.Check C2519 ( 150pF ) pin 26 TDA8305 Check D6030 12v ZENER & D652314-09-04
PhilipsGR1AXDEAD 95v RAIL AT 5vD6671 4v3 US14-09-04
PhilipsGR1AXDEAD LOP TRANSISTOR SC REPLACEMENT BLOWS AFTER 5miL5519 ( LINE DRIVE ) OR LOPTX14-09-04
PhilipsGR1AXDead set - psu OKMicro not working but replacement didn't cure - unplug Txt panel got set working - IC7880 PCA84C81AP/098 u/s14-09-04
PhilipsGR1AXDead with burning smellBUT11AF lop tr & dry joints scan coil connector etc14-09-04
PhilipsGR1AXDead with HT only 1.5v & PSU whistlesReplace 6641 SF2D41 protection thyristor14-09-04
PhilipsGR1AXDEAD WITH LED FLASHING AFTER A FEW SECSIF NOT LOPT , MAY BE D6613 15v ZENER14-09-04
PhilipsGR1AXDead with low freq sound95v HT ok but 9v start up only 5v - Loptx faulty FAT3005714-09-04
PhilipsGR1AXDead with slight hum - 95v HT at LOPTrL5524 coil o/c in line dr stage14-09-04
PhilipsGR1AXDead with st/by light flashing - PSU OKNo line drive or start up volts pin 16 TDA2579 timebase gen - R3455 1k safety feed res high res14-09-04
PhilipsGR1AXDead.D6610 ( BZX79C10 ) zener.14-09-04
PhilipsGR1AXDim pic with hanover bars - no sndcl pulsesD6326 BZX79C12 s/c14-09-04

PhilipsGR1AXDIM PICTURE LINES ON COLOURD6326 12v ZENER14-09-04
PhilipsGR1AXDuring picture changes sometimes a volume increase (plop) is heard.Replace bridge-wire (/jumper) 9511 by diode 6031 BZX79-C12, (4822 130 34197), section/location F7, page 8, of chassis GR1-AX 20" (4822 727 18093). Add diode 6032 BZX79-C12, (4822 130 34197), section/location G7 of the chassis lay-out. NOTE 14-09-04
PhilipsGR1AXExcess non lin height & part pic blanked - intC2043 82pF int14-09-04
PhilipsGR1AXEXCESSIVE HEIGHT , LIN FAULTY , FIELD BLANKINGC2043 82pf14-09-04
PhilipsGR1AXfails to stop at station when tuningL5045 o/c14-09-04
PhilipsGR1AXFailures in the power supplyIn the event of a failure in either R3616, R3680, R3614, MOSFET 7610 or D6610, it is recommended that all four components should be replaced. During fault finding do not connect any probe to the gate of the MOSFET 7610 to measure voltages and waveforms a14-09-04
PhilipsGR1AXFaulty functions with remote control RC 5701.Battery spring does not contact Philips alkale battery. Change remote control. REMARKS : The spring has been changed in production from week 9212 onwards. 14-09-04
PhilipsGR1AXFaulty functions with remote control RC 5701.Battery spring does not contact Philips alkale battery. Change remote control. REMARKS : The spring has been changed in production from week 9212 onwards. 14-09-04
 FB -  Links -  Info / Contacts -  Forum -   Last SM download : Dell d1626ht

script execution: 0.14 s