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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
PhilipsMD1.1ENo or slow reaction to RC / Not to standbySlow response due to problems with I2C communication. Check pin 12 of connector I46 on the Audio Module (SCL line). Look fo a badly soldered (oxidated) pin 12. Resolder pin 12 if required.14-09-04
PhilipsMD1.1ENo picture, no sound. Only green LED is on.Check IC7560 (+5 standby) and replace if necessary (4822 209 72042). 14-09-04

PhilipsMD1.1ENo picture, sound and OSD are O.K.Check the aquadag signal (pin 5 L24/R24) If the signal is not correct, replace C2450 (100nF 10% 250V; 4822 121 40518) on the LSP.14-09-04
PhilipsMD1.1ENo picture, sound and OSD are O.K.Check inputs and outputs of IC7119 TDA8366 and replace if necessary (4822 209 90965)14-09-04
PhilipsMD1.1ENo picture, sound and OSD are O.K.Check R3450 (68K; 4822 116 52297) beamcurrent supply 14-09-04
PhilipsMD1.1ENo picture, sound and OSD are O.K.Check and replace if necessary T7390 (5322 130 41983) on the CRT panel.14-09-04
PhilipsMD1.1ENo picture. OSD OKCheck CVBS signal on pin 4 of IC7119 (TDA 8366). Replace if necessary C2122 (220nF; 4822 126 13473) on SSP14-09-04
PhilipsMD1.1ENo picture. Vertical line at right side.Check and replace if necessary F1463 (19398E1 0.63A; 4822 252 51185) on the LSP and C2403 (100nF 5% 63V; 5322 121 42386) on the 16:9 module.14-09-04
PhilipsMD1.1ENo power, no LEDs on.Pin 1 IC7520 (MC 44603P) =6V caused by defective CNX82A IC7556. Replace CNX82A (4822 130 10025).14-09-04
PhilipsMD1.1ENo sound in combination with TXTCheck and replace if necessary IC7119 (TDA8366; 4822 209 90965). 14-09-04
PhilipsMD1.1ENo synchronisation with internal tunerCheck CVBS signal on pin 11 IC7119 (TDA8366). Replace if necessary C2122 (220nF; 4822 126 13473) on SSP.14-09-04
PhilipsMD1.1ENo TXT.Check X1700 (13,875 MHz) and replace if necessary (4822 242 81962) 14-09-04
PhilipsMD1.1ENo TXT. No DC voltage on pin3 IC7701.Replace X-tal 1700 (13MHz; 4822 242 81962). 14-09-04
PhilipsMD1.1ENo vertical deflectionCheck/replace R3464 by 1 ohm (supply V-defl.) 4822 052 1110814-09-04
PhilipsMD1.1ENo vertical deflectionCheck soldering of pin 15 LOT L5430. 14-09-04
PhilipsMD1.1ENoise (whistle) in sound when OSD is active / OSD with double lettersAdd 100nF capacitor (5322 121 42386) between the collector of T7660 and pin 6 of connector S15.14-09-04
PhilipsMD1.1ENoise at low volumeCheck soldering at SMD bridge 4384 on connector I28 on Audio module 14-09-04
PhilipsMD1.1ENoise from power supply transformerRemove C2567 (680pF capacitor) on the Large Signal Panel. C2567 is located parallel to D6567. REMARKS :Item C2567 is only present in sets produced after wk9719. The problem only occurs in sets produced after wk9719 with SMPS transformers (ite14-09-04
PhilipsMD1.1ENoise in one channel / STEREO detection of MONO transmissionReplace the uP by of the following uPs: VERSION...LANGUAGES...SERVICE CODE NUMBER M12BA1-4.0...F-D-NL-I...4822 900 10988 succ. of uPs with idents 3161, 3199, 3229 and uP SV02-M11C1-43 M12BA2-4.0...SW-DK-N-FI...4822 900 10984 successor of uPs with i14-09-04
PhilipsMD1.1ENoise in one channel / STEREO detection of MONO transmissionThis problem can be solved with a new mask version of the MSP3400 IC in combination with a new 18.432MHz crystal (items IC7353 and X1350 on the Audio Module). Check and replace if necessary by the new components: item 1350 18.432MHz (Kinseki) crystal 14-09-04
PhilipsMD1.1ENoise in picture. Vertical lines bended.Check EHT cable mounting in LOT. 14-09-04
PhilipsMD1.1ENoise in picture. Vertical lines disturbedEHT cable was bad mounted in LOT. 14-09-04

PhilipsMD1.1ENot possible to switch set to standbyCheck whether R3588 (LSP) is open. IF R3588 is open than: 1. Replace R3588 (4822 052 11338; 3.3ohm 5% 0.5W) 2. CHANGE C2561 on the LSP to 3300uF 16V 20% (4822 124 40784).14-09-04
PhilipsMD1.1EOccasional red or blue flash in the pictureCheck and make sure that RGB cable (S40/R40) is not too close to the EHT cable. REMARKS : The modification is not necessary for sets with BlackLine-S tube: QG/AGxx9545 or higher OR Black Matrix tube: QG/AGxx9608 or higher14-09-04
PhilipsMD1.1EOnly mono at all presets.Check and replace if necessary X-tal 1350 (4822 242 82058) on audio module. Otherwise check and replace IC7353 MSP3400: 4822 209 90562 MSP3410: 4822 209 9056314-09-04
PhilipsMD1.1EOSD not visible in child lock modeReplace the following components on the Small Signal Panel: Items 3134, 3135 and 3136 should be 680ohm resistors (4822 051 20681) Items 6105, 6106 and 6107 should be diodes BAT85 (4822 130 31983)14-09-04
PhilipsMD1.1EPicture has only chroma, no luminance. TXT/OSD is OKOn pin 26 IC7119 no Y. Pin 11 CVBS on 1V DC. Check/replace C2122 (220nF; 4822 126 13473).14-09-04
PhilipsMD1.1EPicture not vertically locked.Check whether the sandcastle signal (pin 37 of IC7119) is locked on CVBS. If not, replace IC7119 (TDA8366; 4822 209 90965).14-09-04
PhilipsMD1.1ERandom change of volume levelReplace the uP by one of the following uPs: VERSION...LANGUAGES...SERVICE CODE NUMBER M12BA1-4.0...F-D-NL-I...4822 900 10988 succ. of uPs with idents 3161, 3199, 3229 and uP SV02-M11C1-43 M12BA2-4.0...SW-DK-N-FI...4822 900 10984 successor of uPs wi14-09-04
PhilipsMD1.1ERandom change of volume levelReplace the uP by the following uP: SV03-M11C1-169; service code number 4822 900 10923 Languages: F-D-NL-I-E This uP is successor of the following uPs: NAME...VERSION (SAM)...IDENT MID11W16...16...3232 MID11W18...18 MID11W19…19...3273 MID11W1A14-09-04
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