Philips Repair Tips

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Make	Model	Symptom	Problem
PHILIPS	MD2.23E	Two vertical grey bars in picture	Bent flatcables s10/l10 and s15/l15 away from tda9143 (pos. 7352 on the ssp)
PHILIPS	MD2.23E	Totally inoperative, red led slowly flashing; +5v is 2,2v	Check/replace diode d6520 (1n5822; 5322 130 32677) on the +5v panel.
PHILIPS	MD2.23E	The bottom left side of picture shows a green teletext symbol	The 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
PHILIPS	MD2.23E	Subpages not stored/updated in menubar	Check 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.
PHILIPS	MD2.23E	Sometimes still picture occurs	Check and replace if necessary ic7400/ic7441 (tda8753an; 4822 209 90528) on the feature box.
PHILIPS	MD2.23E	Set switches to stand-by	Change software into the v_3104 317 00890 (4822 900 11058) remarks : introduced in production from week 9737 onwards.
PHILIPS	MD2.23E	Set inoperative. red led flashing. err 47 44 48 69 88	Check and replace if necessary resistor r3609 (4k7; 4822 052 10472) on the lsp.
PHILIPS	MD2.23E	Set can go into protection by switching on.	Change capacitor c2524 (parallel to c2525) into 10uf (4822 124 41579).
PHILIPS	MD2.23E	Service hint	Service 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.
PHILIPS	MD2.23E	Seagull effect in the top of the screen	Add 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.
PHILIPS	MD2.23E	Picture distortions on canal+ and fr2	Change resistor r3141 on the if module into 180Ω (4822 117 11448).
PHILIPS	MD2.23E	No txt, no menu, no osd	Check and replace if necessary x-tal position 1201 on the txt&control panel (27mhz; 4822 242 81191).
PHILIPS	MD2.23E	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.
PHILIPS	MD2.23E	No picture, sound ok	Check 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.
PHILIPS	MD2.23E	No picture and no tuning	Check pins of connector o55 on the combfilter panel. look for badly soldered (oxidated) pins. resolder pins if required. remarks : improved connectors introduced in production from week 9742 onwards.
PHILIPS	MD2.23E	No or slow reaction to rc / not to standby	Slow 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.
PHILIPS	MD2.23E	No mosaic function available	In the newer 4/3 sets the mosaic function is not available anymore. instead of the mosaic menu, the auto-dnr function is added. those sets are supplied with an instruction for use according to the new status of featuring. there are no changes in type or
PHILIPS	MD2.23E	Introduction of dnr; removal of multi-pip	Introduction of dnr; removal of multi-pip ----------------------------------------- during production automatic dnr has been introduced in the md2.2xe sets. at the same time the multi-pip function has been removed because these 2 functions can not be avai
PHILIPS	MD2.23E	Intermittent no picture	Check pins of connector o55 on the combfilter panel. look for badly soldered (oxidated) pins. resolder pins if required. remarks : improved connectors introduced in production from week 9742 onwards.
PHILIPS	MD2.23E	How to enable/disable "child lock"	Press "menu" button on remote control. when the menu appears on the screen, you select "features" (this expression is language dependent) within "features", the "child lock" can be enabled or disabled.