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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: 42
PhilipsMD2.23E"Digital scan" does not appear in the picture menuIn the direction for use is mentioned that in the picture menu the function 'Digital Scan' can be switched off. However during the picture modes; Super Zoom, 14/9, 16/9, subtitles an automatic the function 'Digital Scan' does not appear in the picture me14-09-04
PhilipsMD2.23E+5 V stand-by defective (also fuse 1580 defect)First check the +5 V supply panel before replacing the fuse. When the +5 V panel is defective, it could be that the +5 V becomes too high, which will damage the circuitry.14-09-04

PhilipsMD2.23EAlternating noise in wireless surround speakersAlternating noise when (moving) objects are between the TV set and the wireless surround box can be solved by deleting R3153 (1k5) of module 1403 of the transmitter panel in the TV set. The components on module 1403 are not indicated but pointing the modu14-09-04
PhilipsMD2.23Eat switch on set goes into protection modeReplace C2524 with 10uF14-09-04
PhilipsMD2.23EAudio supply repair kit MD2.2Audio supply repair kit MD2.2 ----------------------------- For service now there is an audio supply repair kit available. This repair kit can be ordered with codenumber 4822 310 11086.14-09-04
PhilipsMD2.23EBad start behaviour, ON and ST.BY LED flashingChange mains input voltage by a variac. When start problem increases with an input voltage that is only about 10% below normal, check or replace the supply optocoupler. With a good optocoupler an avarage set easily starts on 60% of normal mains voltage.14-09-04
PhilipsMD2.23EChange in OSD functionChange in OSD function ---------------------- During production the OSD function of the MD2.2xE sets has been changed with the introduction of new software. The old situation was that by pressing the OSD button for 5 seconds it was possible to change bet14-09-04
PhilipsMD2.23ECodenumber informationCodenumber information ---------------------- Codenumber software IC7202 on TXT control panel Sets without full EPG (nextview) is 4822 900 11102 Sets with EPG (nextview) is 4822 900 11058 /58 sets with East Europe language cluster is 4822 900 11066 14-09-04
PhilipsMD2.23EColoured circles in picture after switching onReplace on the LSP the following components: - R3502 from 10 Ohm into 2.2 Ohm (4822 052 11228) - R3531 from 2k2 into 4k7 (4822 116 52283) - C2513 from 100nF into 10uF (4822 124 41579) mounted with the - to the base of T7514 REMARKS : Introduce14-09-04
PhilipsMD2.23ECorrection to the MD2.21E/MD2.22E/MD2.23ECorrection to the MD2.21E/MD2.22E/MD2.23E service manual -------------------------------------------------------- The code number of the Line Repair kit as mentioned on page 67 of the service manual MD2.21E/MD2.22E/MD2.23E AA is not correct. The correct c14-09-04
PhilipsMD2.23EDigital picture when dynamic contrast is on.Check and replace if necessary AI panel. AI S/L 4822 212 11202 AI S/P 4822 212 11161 AI S/L/P 4822 212 11203 AI P 4822 212 11162 AI L 4822 212 11378 AI S/L/P PALPLUS 4822 212 11205 AI S/P PALPLUS 4822 212 11209 14-09-04
PhilipsMD2.23EDoes not start, during 15 sec. green LED ON, then red LED ON.Replace software IC7202 on TXT/Control panel codenr.: 4822 900 11058 and 4822 900 11066 for /58 sets. 14-09-04
PhilipsMD2.23EExtension cablesExtension cables ---------------- Service extension cables 4822 310 10674 can be used for servicing LSP and also for the feature box. 14-09-04
PhilipsMD2.23EFeature boxes in the repair procedureFeature boxes in the repair procedure ------------------------------------- The following feature boxes are now also in the repair procedure: 4822 212 11143 FBX3 smartic panic 4822 212 11198 FBX3 smartic limeric 4822 212 11204 FBX4 smartic limeric panic 414-09-04
PhilipsMD2.23EFlashing red LED, protection, intermitting failures.Check on +5 V panel the soldering of C2350. Also check and resolder pin 1,2,3, and 10,11,12 of connector V50 on the LSP.14-09-04
PhilipsMD2.23EGreek characters in Teletext.Change software into the following version: Non EPG sets: V_3104 317 00860; 4822 900 11102 EPG sets : V_3104 317 00890; 4822 900 11058 -/58 sets : V_3104 317 00870; 4822 900 11066 REMARKS : Introduced in production from week 9737 onwards.14-09-04
PhilipsMD2.23EHorizontal (colour or black/white) stripesCheck the connector (O55) of the combfilter. Resolder on the small signal panel but also at the comb-filter PCB. 14-09-04
PhilipsMD2.23EHorizontal jitter or sync faults during text-dualScreen mode.1. Switch the set on and let the set warm-up for about 1 hour with the rear cover mounted and eventually covered with a cloth. 2. Adjust L5465 in the following way: - turn L5465 to the left till the picture is out of sync. - turn L5465 to the rig14-09-04
PhilipsMD2.23EHorizontal stripes in picture on high volume or ticking against setCheck pins on 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. 14-09-04
PhilipsMD2.23EHow to access "Customer Service Mode"Press "mute" (on Remote Control) and "menu" on the TV-set at the same time for 4 seconds. On screen a survey will be given with the status of the various settings of the current transmittor. 14-09-04
PhilipsMD2.23EHow 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.14-09-04
PhilipsMD2.23EIntermittent no pictureCheck 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. 14-09-04

PhilipsMD2.23EIntroduction of DNR; Removal of Multi-PIPIntroduction 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 avai14-09-04
PhilipsMD2.23ENo mosaic function availableIn 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 14-09-04
PhilipsMD2.23ENo 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
PhilipsMD2.23ENo picture and no tuningCheck 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.14-09-04
PhilipsMD2.23ENo 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. 14-09-04
PhilipsMD2.23ENo 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. 14-09-04
PhilipsMD2.23ENo TXT, no menu, no OSDCheck and replace if necessary X-tal position 1201 on the TXT&control panel (27MHz; 4822 242 81191). 14-09-04
PhilipsMD2.23EPicture distortions on canal+ and FR2Change resistor R3141 on the IF module into 180 ohm (4822 117 11448).14-09-04
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