philips Repair Tips




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MakeModel Ch.SymptomProblem SolutionSolutionBy:
PhilipsMD2.25 32PW9523
excessive width with E/WIC7480 (482213011336) EW chip
PhilipsMD2.25 29PT8413
Trips int leaving no sound/pic & st/by LED flashing cont.due to oxidised connections on the audio board pins - looked ok but resoldering cured
PhilipsMD2.25
dead - mains switch faultyreplace switch with improved type (coloured black). Use old part no, Philips will supply a new type
PhilipsMD2.25
No sound - fault in separate sound psuTr7302 BU508AF s/c, R3300 6R8 o/c s/c on 16v line traced to AF o/p ic 7740 s/c
PhilipsMD2.23E
Vertical stripes in pictureOn the right side a 2.5 cm width dark band and on the left side a vertical stripe can be seen. Check if the wires S11-L11 and S10-L10 do not touch C2368 on the SSP. If they touch C2368 bend them away from C2368.
PhilipsMD2.23E
Unstable moving, "waving" pictureCheck on +5 V panel the soldering of C2530. Also check and resolder pin 1,2,3, and 10,11,12 of connector V50 on the LSP.
PhilipsMD2.23E
Two vertical grey bars in pictureBent flatcables S10/L10 and S15/L15 away from TDA9143 (pos. 7352 on the SSP)
PhilipsMD2.23E
Totally inoperative, red LED slowly flashing; +5V is 2,2VCheck/replace diode D6520 (1N5822; 5322 130 32677) on the +5V panel.
PhilipsMD2.23E
The bottom left side of picture shows a green teletext symbolThe bottom left side of picture shows a green teletext symbol whether or not the teletext is switched on. Subtitling is selected, but the subtitling page is not stored. Switch off the subtitle function by pressing the subtitle knob on the remote cont
PhilipsMD2.23E
Subpages not stored/updated in menubarCheck whether jumper 4400 is present on TXT-control panel. If not present, mount jumper. The location is between X-tal 1201 and TXT IC7400. Codenumber jumper: 4822 051 20008.
PhilipsMD2.23E
Sometimes still picture occursCheck and replace if necessary IC7400/IC7441 (TDA8753AN; 4822 209 90528) on the feature box.
PhilipsMD2.23E
Set switches to stand-byChange software into the V_3104 317 00890 (4822 900 11058) REMARKS : Introduced in production from week 9737 onwards.
PhilipsMD2.23E
Set inoperative. Red LED flashing. Err 47 44 48 69 88Check and replace if necessary resistor R3609 (4K7; 4822 052 10472) on the LSP.
PhilipsMD2.23E
Set can go into protection by switching on.Change capacitor C2524 (parallel to C2525) into 10uF (4822 124 41579).
PhilipsMD2.23E
Service hintService hint ------------ Check the VDR on the mainsfilter panel. If this is defective, replace the old VDR (4822 116 21217) by a new one (4822 116 10065). REMARKS : Introduced in production from week 9752 onwards.
PhilipsMD2.23E
Seagull effect in the top of the screenAdd North South panel 4822 212 11564 on position L91 of the LSP. Remove bridge wire 9621. Add bridge wires 9431, 9442 and 9443. REMARKS : This is only a service solution and will not be implemented in production.
PhilipsMD2.23E
Picture distortions on canal+ and FR2Change resistor R3141 on the IF module into 180 ohm (4822 117 11448).
PhilipsMD2.23E
No TXT, no menu, no OSDCheck and replace if necessary X-tal position 1201 on the TXT&control panel (27MHz; 4822 242 81191).
PhilipsMD2.23E
No picture. Sound, menu and TXT are OK.Check pins of connector O55 on the combfilter panel. Look for badly soldered (oxidated) pins. Resolder the pins if required. REMARKS : Improved connectors introduced in production from week 9742 onwards.
PhilipsMD2.23E
No picture, sound OKCheck the "customer service mode": press mute (remote control) and menu (local control) at the same time for 3 seconds. If the PP values are at zero then these values should be changed.