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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
PhilipsMD2.21EService 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.14-09-04
PhilipsMD2.21ESet can go into protection by switching on.Change capacitor C2524 (parallel to C2525) into 10uF (4822 124 41579). 14-09-04

PhilipsMD2.21ESet in protection with several error codes in the error bufferErrors caused by intermittent I2C communication problems. Usually one of the error codes is related to the MSP34x0 sound processor. Check pin 12 of connector I46 on the Audio Module (SCL line). Look for a badly soldered (oxidated) pin 12. Resolder pin 114-09-04
PhilipsMD2.21ESet inoperative. Red LED flashing. Err 47 44 48 69 88Check and replace if necessary resistor R3609 (4K7; 4822 052 10472) on the LSP. 14-09-04
PhilipsMD2.21ESet switches to stand-byChange software into the V_3104 317 00890 (4822 900 11058) REMARKS : Introduced in production from week 9737 onwards.14-09-04
PhilipsMD2.21ESometimes still picture occursCheck and replace if necessary IC7400/IC7441 (TDA8753AN; 4822 209 90528) on the feature box. 14-09-04
PhilipsMD2.21EStand-by LED flashing after start upErrors 47, and possible 69 are indicated. Solution: on LSP probably HFB signal not present caused of defective R3609, 4k7, 4822 052 10472.14-09-04
PhilipsMD2.21ESubpages 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. 14-09-04
PhilipsMD2.21ESwitching off and on of the wireless surround speakersCheck and replace the following components on the power supply + amplifier panel in the active surround speaker if necessary: - position 2280 into 220uF (4822 124 40196) - position 3280 into 330k (4822 116 52272) REMARKS : IRIS symptom code 654414-09-04
PhilipsMD2.21EThe 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 cont14-09-04
PhilipsMD2.21EThe colours are switching during playback of mounted video tapesThe colours are switching during playback of mounted video tapes on several camcorders. In case a TDA9143 is present on position 7352 on the SSP: - change position 7352 into a TDA9141 (4822 209 90328) - remove position R3377 and R3378 (20M) from the SSP 14-09-04
PhilipsMD2.21EThe time from TXT is not read or with mistakesReplace position 7202 on the TXT & control module with: 4822 900 11102 Software for non EPG sets 4822 900 11066 Software for -/58 sets 4822 900 11058 Software for EPG sets REMARKS : IRIS symptom code 1286 14-09-04
PhilipsMD2.21ETotally deadIf the mains fuse (2 amp; 1501 on the mainsfilter panel) is defective, replace it by a 6.3 Ampere hard break (4822 253 30467) 14-09-04
PhilipsMD2.21ETotally inoperative, red LED slowly flashing; +5V is 2,2VCheck/replace diode D6520 (1N5822; 5322 130 32677) on the +5V panel. 14-09-04
PhilipsMD2.21ETwo vertical grey bars in pictureBent flatcables S10/L10 and S15/L15 away from TDA9143 (pos. 7352 on the SSP) 14-09-04
PhilipsMD2.21EUnstable 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.14-09-04
PhilipsMD2.21EVertical shift and amplitude not stable (jumps).Check 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
PhilipsMD2.21EVertical 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 C2368.14-09-04
PhilipsMD2.21EWrong TXT characters on subtitlesReplace position 7202 on the TXT & control module by: 4822 900 11102 Software for non EPG sets 4822 900 11066 Software for -/58 sets 4822 900 11058 Software for EPG sets REMARKS : IRIS symptom code 1286 14-09-04
PhilipsMD2.22N-S distortionif no N-S board fitted, then fit this board (482221211564 (30 pounds+VAT)) and remove links 9431, 9442, 9443, 962114-09-04
PhilipsMD2.22dead - mains switch faultyreplace switch with improved type (coloured black). Use old part no, Philips will supply a new type14-09-04
PhilipsMD2.22AADead - LED goes green for 15 secs then turns constant redMicro 7200 faulty - not a job to get involved with if at all possible!14-09-04

PhilipsMD2.22AAlines on picsyscon/txt module connections to main pcb dry jointed14-09-04
PhilipsMD2.22E"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
PhilipsMD2.22E+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
PhilipsMD2.22EACI table filling stops when National Geographic Channel is foundReplace position 7202 on the TXT & control module by: 4822 900 11102 Software for non EPG sets 4822 900 11066 Software for -/58 sets 4822 900 11058 Softwrae for EPG sets REMARKS : IRIS symptom code 1262 14-09-04
PhilipsMD2.22EAlternating 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
PhilipsMD2.22EAudio 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
PhilipsMD2.22EBackground noise audible in the wireless surround speakersChange on the receiver module in the active surroud loudspeaker the following components: - delete position 3731 - add position 3729 (4k7; 4822 051 20472) - change position 3730 into 4k7 (4822 051 20472) REMARKS : IRIS symptom code 154214-09-04
PhilipsMD2.22EBad focus or focus varies in a new set or after CRT replacementPossible solution: Short circuit the focus and the G2 pins of the picture tube with the aquadag coating. Switch the set on for approximately 5 seconds. After this return the set to its original condition. Check if the focus adjusted normally. If not repla14-09-04
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