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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: 4551
PhilipsFL4.17Correction to the Service ManualCorrection to the Service Manual -------------------------------- In circuit diagram B on page 7 of the service manual FL1.14/FL2.14/FL1.16/FL2.16 and FL 1.17 the resistors 3624 and 3625 are not drawn. These resistors should be drawn on the position of 9614-09-04
PhilipsFL4.17Crazy behaviour: No response from RC or controls.Other phenomenas: volume up/down, spontanuous service mode etc. etc. in areas with TOP-teletext. Replace control software by replacing EPROM IC7002 to version V83 (4822 900 10506). For easy mounting also the controlboard 7115 (on SSP) can be replaced by 14-09-04

PhilipsFL4.17Dark picture, only green led, no menu or OSD.+5V supply was 4,1V. Voltage D6551 was 4,3V instead of 5,6V. Check/replace D6551 (4822 130 80954). 14-09-04
PhilipsFL4.17Four dark bars over the picture.The +5 volt was 5.6 volt instead of 5.1 volt. Check/replace IC7551 (4822 209 70672). 14-09-04
PhilipsFL4.17How to enable/disable "Child Lock"Press "MENU" button on Remote Control. When the menu appears on the screen, you select "SPECIAL FEATURES" (this expression is language dependent) Within "SPECIAL FEATURES", the "CHILD LOCK" can be enabled or disabled. 14-09-04
PhilipsFL4.17JitterIn PIP unit change the value of R3336 to 4k7. 14-09-04
PhilipsFL4.17Low Brightness TXT and OSD, Picture OKIf this condition occurs, check the Option Codes. Resetting the Option Code numbers as per the Service Manual provided the cure. 14-09-04
PhilipsFL4.17Low frequency hum from subwoofer, buzz from right hand squeeter.Check DC level on pin 1 and 9 of IC7011 (TDA1521). If not correct, replace (4822 209 63913). 14-09-04
PhilipsFL4.17No colors in TV modeCheck IC7365 (TDA4650) on the SSP (4822 209 30837) 14-09-04
PhilipsFL4.17No sound, "ON, Standby, I" LEDs blinking10MHz crystal 1602 on the SSP defective, 4822 242 80276 14-09-04
PhilipsFL4.17Noise on high volumePerform the following modifications on the SSP: Add on position 3618 4,7nF (4822 122 31784) Add on position 3619 jumper (4822 051 10008) Connected in series from 2604/4610 to earth. Change position 4610 into 1k ohm (4822 051 10102)14-09-04
PhilipsFL4.17Overview of doors for FL4 stylingOverview of doors for FL4 styling --------------------------------- 4822 432 93229 Door for 29" FL4.17/FL4.27 4822 432 93393 Door for 29" 4GFL2.20E AA 4822 432 93312 Door for 29" FL4.16/FL4.26 4822 432 93382 Door for 29" GFL2.20E AB 4822 432 93271 Do14-09-04
PhilipsFL4.17Overview of SOPS repair kitsOverview of SOPS repair kits ---------------------------- FL1.0 AG00 upto AG03 4822 310 20492 FL1.0 AG04 and higher 4822 310 31921 FL1.0S 4822 310 31924 FL1.1 25" and 28" 4822 310 31919 FL1.1 33" 4822 310 31932 FL1.1S 14-09-04
PhilipsFL4.17Picture disappears (fly back lines), ON STEREO and DUAL LEDs blinkCheck IC7430 (TDA4680). When TDA4680 is too hot there is no picture (4822 209 31592). 14-09-04
PhilipsFL4.17Picture disappears shortly after 30" or control does not function.When hot, 13,5 MHz clock stops working; change the value of R3123 to 1k2. 14-09-04
PhilipsFL4.17Picture often darkCheck IC7201 in High End-box (SAA9042P/A; 4822 209 31851) 14-09-04
PhilipsFL4.17Picture twists from topVoltage of pin 8-IC7450 (TDA3654Q) on the LSP has raised to ca. 20 V. Check diode 6451 (BZX79/C3V6; 5322 130 34834 or BZX79/C10; 4822 130 61219) 14-09-04
PhilipsFL4.17Picture twists from topVoltage of pin 8-IC7450 (TDA3654Q) on the LSP has raised to ca. 20 V. Check diode 6451 (BZX79/C5V6; 4822 130 80954). 14-09-04
PhilipsFL4.17PIP picture not in order.Check R3345 (4822 111 41424) in PIP unit, check IC7755 (4822 209 63423). 14-09-04
PhilipsFL4.17Range of picture height adjustment too small.To increase the range of the picture height adjustment change the following components on the Large Signal Panel: - Change position 3422 from 1M3 into 1M2 (4822 116 81223). - Change position 3423 from 1M1 into 820k (4822 116 52305). 14-09-04
PhilipsFL4.17Set can only be operated with Remote ControlCheck whether "Child Lock" is disabled. To check this, see "Frequently Asked Questions", "How to disable Child Lock". 14-09-04
PhilipsFL4.17Set inoperative only red or green LED. Supply was 141V but no EHT.Line drive puls for T7506 (2SC4288A) too low. L5503 defective (Line drive coil; 4822 157 63252) 14-09-04

PhilipsFL4.17Shuts off and on again on Pr.nr. 1 after 3 hours.D6272 (BZX55B5V6) interruption when it becomes hot. 14-09-04
PhilipsFL4.17Sometimes vibration in vertical direction.Replace C2410 (150nF 5%; 4822 121 41854) on LSP. 14-09-04
PhilipsFL4.17Spook in pictureUse special antenna cables. Codenumbers: 4822 321 61224 PAL 1 meter 4822 321 61225 PAL 2 meter 4822 321 61226 SECAM 1 meter 4822 321 61227 SECAM 2 meter 14-09-04
PhilipsFL4.17Supply +5V too low, black horizontal bar in picture. Bad sync.Check/replace IC7551 (LM358N; 4822 209 70672) 14-09-04
PhilipsFL4.17Supply switch-off sometimesCheck the +5 stand-by. This voltage has to be 5.5V and may not vary. When the voltage drops below 5.2V the set switches-off. Cure: check leakage of D6266 (BZX79/F6V8; 4822 130 34278) 14-09-04
PhilipsFL4.17Synchronization, picture disappearsD6703 and T7704 defective on picture tube panel. 14-09-04
PhilipsFL4.17Ticking noise and line in pictureTransistor 7381 (BC848C; 5322 130 42136) defective when hot. 14-09-04
PhilipsFL4.17Total inoperative, leds blinking, error 99Check and replace if necessary C2504 and/or 2505 (2kV HRR) on the Large signal panel. Replace by a 3kV15 HR-R capacitor if possible: 820pF 4822 126 13152 1nF 4822 126 13153 1,2nF 4822 126 13154 1,5nF 4822 126 13155 1,8nF 4822 126 13156 2,14-09-04
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