Philips Repair Tips
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Results: 14209
Results: 14209
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
MD1.1E
|
No picture, sound and osd are o.k. | Check and replace if necessary t7390 (5322 130 41983) on the crt panel. | ||
| PHILIPS |
MD1.1E
|
No picture, sound and osd are o.k. | Check r3450 (68k; 4822 116 52297) beamcurrent supply | ||
| PHILIPS |
MD1.1E
|
No picture, sound and osd are o.k. | Check inputs and outputs of ic7119 tda8366 and replace if necessary (4822 209 90965) | ||
| PHILIPS |
MD1.1E
|
No picture, sound and osd are o.k. | Check the aquadag signal (pin 5 l24/r24) if the signal is not correct, replace c2450 (100nf 10% 250v; 4822 121 40518) on the lsp. | ||
| PHILIPS |
MD1.1E
|
No picture, no sound. only green led is on. | Check ic7560 (+5 standby) and replace if necessary (4822 209 72042). | ||
| PHILIPS |
MD1.1E
|
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 |
MD1.1E
|
No colour, osd and txt ok. | Check and replace if necessary item c2143 (100nf; 25v; 4822 126 13161)on the ssp. | ||
| PHILIPS |
MD1.1E
|
No colour or no colour after some time | Check c2161 (via 3164 on pin 34 ic7119/tda8366) whether voltage on pt 34 is much lower than 4.5v. probably c2161 has leakage. codenumber c2161 (100 nf 10% 125v) is 4822 126 13161. | ||
| PHILIPS |
MD1.1E
|
No colour on off-air signals or via the scart inputs. teletext normal. | Chip capacitor c2143 (100nf) was found to have an 82r leak which was dragging down the supply to pin 1 of the tda4665 (ic7140) from 4v9 to 1v6. this stopped the chip from outputting the delayed r-y & b-y signals. a ceramic alternative mounted on the print side of the board restored normal pictures. | ||
| PHILIPS |
MD1.1E
|
No colour on off-air signals or via the scart inputs. | C2143 sm 100nf leaky | ||
| PHILIPS |
MD1.1E
|
Moire in picture on certain channels (ch6, ch11, ch24 and s12) | Depending on the severity of the problem, a 3 phase solution is available. if the problem is not sufficiently solved by step 1, continue with 2, etc. 1. use a high quality antenna cable 2. add 3 smd capacitors (in parallel) on position 2391 (audio mo | ||
| PHILIPS |
MD1.1E
|
Modification sm md1.1e in diversity table a2 | Modification sm md1.1e in diversity table a2 on page 15 ------------------------------------------------------- diversity table a2 on page 15 of the sm md1.1e aa is modified: position 7420, column crt04 (25/28"bm) and crt05 (21"bm) must be bu2506df (48 | ||
| PHILIPS |
MD1.1E
|
Modification | Modification a new nicam l panel is introduced in the md1.2e chassis. it will also be used in the md1.1e chassis. it is fully compatible with the original panel. the service code of the new nicam l panel is :4822 212 10919. remarks :the lay | ||
| PHILIPS |
MD1.1E
|
Modification | Modification from ag/qg06 onwards a new version of the bimos is used in all md1.1e aa sets; tda8366/n3 is replaced by tda8366/n4. therefore a number of components on the ssp has changed. in all md1.1e aa sets: item 1117 becomes 4822 242 10692 4.4 | ||
| PHILIPS |
MD1.1E
|
Md1.1e lot survey for aa sets | Md1.1e lot survey for aa sets -------------------------------- crt type service code lot remarks 21" 4822 140 10526 *) 25"bm 4822 140 10528 *) | ||
| PHILIPS |
MD1.1E
|
Intermittent no picture and/or sound | 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. | ||
| PHILIPS |
MD1.1E
|
Intermittent no picture | 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. | ||
| PHILIPS |
MD1.1E
|
Intermittent no colour and picture shifts to one side | The fault was caused by the chroma x-tal pos. nr. 1117 (4822 242 81809). the 4.43 mhz x-tal in these sets is used within the bimos i.c (tda 8366) to provide a internal ref for the horizontal and vertical count circuits. | ||
| PHILIPS |
MD1.1E
|
Intermittent no audio | 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. | ||
| PHILIPS |
MD1.1E
|
Intermittent flicker in picture | Check and replace if necessary zenerdiode 6360 (bzv86-2v0; 4822 130 81424) |