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
PhilipsG90AEFoldover & flyback lines at top of picOK in widescreen - Voltage at cathode of diode 6570 95V Should be 163V. O/C R357014-09-04
PhilipsG90AEFoldover with fb lines - only present in 4:3Voltage at cathode of diode 6570 95V Should be 163V. O/C R357014-09-04

PhilipsG90AEFor 5 minutes zigzag edges in the pictureC2630 (47uF/160V; 4822 124 41056). 14-09-04
PhilipsG90AEHumming, tickingReplace thyristor 6670. (SFOR5D43, 4822 130 20245). 14-09-04
PhilipsG90AEIf +95V is 1) 30V, 2) 50V, 3) 80V1) diode 6546 (BYD33M; 4822 130 42489) 2) diode 6653 (BAS32; 4822 130 80446) 3) diode 6613 (BAS32; 4822 130 80446)14-09-04
PhilipsG90AEInt deadDry joints R3671 sm res - feeds from Tr7671 to thy 6670 gate14-09-04
PhilipsG90AEInt loss of col, sound, random chan change & "F4" int showsReplace micro/EEPROM IC7600 & IC760114-09-04
PhilipsG90AEInt loss of line/field syncResolder 6k8 sm under C247314-09-04
PhilipsG90AEINT SOUNDD6272 BAS32 INT OC IN 20v FEED TO TDA819114-09-04
PhilipsG90AEInt st/by, loss of sigs, col, contrastProc chip TMP47C43N-3555 faulty - replacement has metal shield14-09-04
PhilipsG90AEIntercarrier-humAdjust coil S 5115 for minimum hum. See service manual CHASSIS G90AE (4822 727 16447) page 4 point 1314-09-04
PhilipsG90AEKeeps interruptingR3672 (4K7; 5322 111 90111). 14-09-04
PhilipsG90AELED blinks in stand-by modeCheck/replace thyristor 6670 (SFOR5D43; 4822 130 20245). 14-09-04
PhilipsG90AELINE PAIRING TOP HALF OF SCREENC2475 ( 33n ) DECOUPLES PIN 2 OF IC747014-09-04
PhilipsG90AELines - fine dark horiz when heatedDry joints tuner14-09-04
PhilipsG90AELines in picture.Check/replace R 3570 (8,2 Ohm; 4822 052 10828) 14-09-04
PhilipsG90AELow EHT with LOPTx making fizzing noiseNoise stopped when pin 2 LOPTx dis'd - IC7470 TDA2579A timebase chip faulty (internal s/c on supply pin 10)14-09-04
PhilipsG90AENicam -intCheck joints on grey sm caps on NICAM pcb - will often req a quick solder round14-09-04
PhilipsG90AENo BlueD6416 BAS32 u/s14-09-04
PhilipsG90AENo chan storeX2402 EEPROM14-09-04
PhilipsG90AENo col (s/c pins 1 & 6 dec chip to overide col kill)Ref osc could not be locked by C2352; C2359 leaky14-09-04
PhilipsG90AENo colourC2359 leaky.14-09-04

PhilipsG90AENo line oscCheck pin 16 IC7470 TDA2579 for 9v - if low check volts across D6455 5v6 zener - if low replace D6455 BZX55F5V6; if ok replace Tr7455 BC85814-09-04
PhilipsG90AENo OSD - no sound , blank raster.IC TMP47V434N-3555 IC772014-09-04
PhilipsG90AENo pic at sw on - just lines across screen - ok when heatedC2580 1000µ14-09-04
PhilipsG90AENO PIC TEXT OK TDA3561A PIN 7 -ve NOT 3.4vC2560 33nF14-09-04
PhilipsG90AENo picture, no soundVoltage +95 V present Replace IC 7470 (TDA 2579/N6; 4822 209 72363) and replace TS 7455 (BC 858A; 5322 130 42012)14-09-04
PhilipsG90AENo picture, sound OK.Video signal present on pin 19 SCART, video signal not present on pin 3 IC 7350. Replace TS 7881 (BC 848; 4822 130 61207)14-09-04
PhilipsG90AENo picture, sound OK.Vertical signal not present on basis TS 7503 Replace TS 7471 (BC 848C; 5322 130 42136)14-09-04
PhilipsG90AENo picture, sound OK.Video signal present on pin 3 IC 7350. RGB-Signal not present on pin 12, 14, 16 IC 7350. Replace IC 7350 (TDA 3561A/N8; 4822 209 71518)14-09-04
 FB -  Links -  Info / Contacts -  Forum -   Last SM download :

script execution: 0.14 s