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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
PhilipsMD2.22EBad 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
PhilipsMD2.22EBlinking LED (set in protection)Set in I2C software protection due to problems with the I2C communication. Check pin 12 of connector I46 on the Audio Module (SCL line). Look for a badly soldered (oxidated) pin 12. Resolder pin 12 if required.14-09-04

PhilipsMD2.22EChange 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
PhilipsMD2.22ECode number of position 7207 of the TXT-Control paCode number of position 7207 of the TXT-Control panel ----------------------------------------------------- The code number of position 7207 (UM62256EM-55LL) of the control panel is missing in the service manual. The code number is 4822 209 15179.14-09-04
PhilipsMD2.22ECodenumber 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
PhilipsMD2.22EColour shift of negative coloursDuring program changing or with start-up from standby it is possible that the situation of colour shift of negative colours appears. This phenomenon only disappears after switching off and on and is difficult to reproduce. Solution: Change position 7505 o14-09-04
PhilipsMD2.22EColoured 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
PhilipsMD2.22EControl knobs of sets with top control does not workCheck the soldering of connector B45 of the top control panel (W or X) If required resolder the pins of this connector and relief connector B45. 14-09-04
PhilipsMD2.22ECorrection to styling 130 of Product Survey 1997-4Correction to styling 130 of Product Survey 1997-4 -------------------------------------------------- The description of the code numbers 4822 466 10933 and 4822 466 10934 of position 3 of styling 130 in product survey 1997-4 is not correct. The correct d14-09-04
PhilipsMD2.22ECorrection to styling 152 of Product Survey 1997-3Correction to styling 152 of Product Survey 1997-3 (4822 727 21552) ------------------------------------------------------------------- The code number of the tuner cable mentioned in the parts list is not correct. The code number mentioned is of a tuner 14-09-04
PhilipsMD2.22ECorrection to the MD2.21E/MD2.22E/MD2.23E serviceCorrection 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
PhilipsMD2.22ECrackling noise coming from the picture tubeCrackling noise coming from the picture tube during light/dark changes of the picture contents. Mount bleeder (4822 310 11113) between LOT and picture tube. If problem still exist Anti Crackling Coating (ACC) can be applied. The code number for this AC14-09-04
PhilipsMD2.22ECrackling noise coming from the picture tube during program switchingService solution; change the picture tube into 4822 131 11279 REMARKS :IRIS symptom code 214514-09-04
PhilipsMD2.22ECurtain effect just after a white vertical line (ringing phenomenon)To reduce the ringing phenomenon change the following positions on the Small Signal Panel: Position 4508 into 1k (4822 051 10102) Position 3537 into 1k (5322 117 12487) Position 3538 into 1k (5322 117 12487) Position 3565 into 1k (4822 051 10102) Po14-09-04
PhilipsMD2.22EDigital 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
PhilipsMD2.22EDistortion in top of pictureCheck pins of connector J13 on the DDP. Look for badly soldered (oxidated) pins. Resolder pins if required. REMARKS : Improved connectors introduced in production from week 9742 onwards. 14-09-04
PhilipsMD2.22EDoes 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
PhilipsMD2.22EExtension cablesExtension cables ---------------- Service extension cables 4822 310 10674 can be used for servicing LSP and also for the feature box. 14-09-04
PhilipsMD2.22EFeature 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
PhilipsMD2.22EFlashing 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
PhilipsMD2.22EGreek 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
PhilipsMD2.22EHorizontal (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

PhilipsMD2.22EHorizontal 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
PhilipsMD2.22EHorizontal lines in pictureCheck pins of connector J13 on the DDP. Look for badly soldered (oxidated) pins. Resolder pins if required. REMARKS : Improved connectors introduced in production from week 9742 onwards. 14-09-04
PhilipsMD2.22EHorizontal 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
PhilipsMD2.22EHow 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
PhilipsMD2.22EHow 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
PhilipsMD2.22EInfluence from wireless dolby on channel 3Cause: The wireless dolby transmitter influences the 55.25 MHz on channel 3. The local oscillator from the tuner interferes with the wireless dolby transmitter frequency and this results in a cross pattern on channel 3 (55.25 MHz). Solution: - Add on pos14-09-04
PhilipsMD2.22EInterference from VCR visible in picture- Respect the distance of 20cm as mentioned in the DFU of the VCR. - Use a special antenna cable: 4822 321 61224 or 4822 320 11091 for PA 4822 321 61226 for SECAM REMARKS : IRIS symptom code 134X14-09-04
PhilipsMD2.22EIntermittent no audioCheck pin 12 of connector I46 on the Audio Module (SCL line). Look for a badly soldered (oxidated) pin 12. Resolder pin 12 if required.14-09-04
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