Philips Repair Tips
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Results: 14209
Results: 14209
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
MD1.2E
|
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 |
MD1.2E
|
Interference on vhf3 (175-225mhz) | Use good (double screened) coax to and in the neighbourhood of the tv- set. do not use open (unscreened) coax connectors. | ||
| PHILIPS |
MD1.2E
|
Interference in picture on 182, 217, 238 and 495 mhz | 1. use high quality antenna cables and connectors (in case of insufficient result, apply solution 2) 2. add 3 smd capacitors (parallel) on pos 2391 audio-module. 470pf; 5322 122 32268 220pf; 4822 122 31173 and 1,5pf; 5322.126.10225 | ||
| PHILIPS |
MD1.2E
|
How to enable/disable "child lock" | Select "features" (this expression is language dependent) menu on remote control. within "features", the "child lock" can be enabled or disabled. | ||
| PHILIPS |
MD1.2E
|
Easy way to check the power supply | Easy way to check the power supply---------------------------------- the mc44603 can be checked for basic operation without the set being connected to the mains supply. method: 1) discharge the 300v smoothing capacitor. 2) connect a byd33d diode to p | ||
| PHILIPS |
MD1.2E
|
Dead, no legs and burning smell | C2568 330nf 1kv s/c | ||
| PHILIPS |
MD1.2E
|
Dead, fet7540 s/c & mc44603p changed - after replacement led flashed red, yellow & green | Loptx faulty tho' checks ok on tester | ||
| PHILIPS |
MD1.2E
|
Dead - mains switch faulty | Replace switch with improved type (coloured black). use old part no, philips will supply a new type | ||
| PHILIPS |
MD1.2E
|
Dead - blows several semis at sw on | Bridge rect, h8na60f, mc44603p 10r 0.22r, 220pf cap2kv, 3524 10r, 3525 180k, 6524 byv10-20 (not 20v zener - fit proper replacement), ba157, sth8na60fi, stw8na60, cnx82a, check c2540 | ||
| PHILIPS |
MD1.2E
|
Dark picture / wrong colours | Check soldering of connector w57 (cti/black stretch module) resolder all pins if required. remarks :a solution is introduced in production from week 9801 onwards. | ||
| PHILIPS |
MD1.2E
|
Cracks in nicam sound | Check and replace if necessary item r3002 by a 180Ω 1% 0.1w resistor (4822 117 11448). r3002 is located on the nicam l panel. for md1.1e aa sets (not applicable for md1.2e aa and md1.1e ab) a micro controller that solves the "random change of volume" | ||
| PHILIPS |
MD1.2E
|
Colourspots on screen; degaussing defective | The circularly pattern consists of a red spot in the middle, surrounded by a green circle, which again is surrounded by a blue circle. this is caused by a defective position 7507 on the lsp. delete position 7507. mount jumper 9507 on the lsp | ||
| PHILIPS |
MD1.2E
|
Colour missing with playback of secam tape | Check and replace if necessary item 7113 (tda8395/n2) on the ssp by tda8395/n3 (4822 209 16032). remarks :this is a service solution that is not introduced in production. | ||
| PHILIPS |
MD1.2E
|
Blinking 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. | ||
| PHILIPS |
MD1.2E
|
Bad start behaviour, on and st.by led flashing | Change 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. | ||
| PHILIPS |
MD1.2E
|
Bad focus or focus varies in a new set or after crt replacement | Possible 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 repla | ||
| PHILIPS |
MD1.2 28PW6322
|
Poor pic with fly back lines, r3329 on tube base getting hot. | Crt faulty | ||
| PHILIPS |
MD1.2
|
Interference when disturbed | Cti panel dry joint edge conn | ||
| PHILIPS |
MD1.2
|
E/w bowing in 4:3 pic - double image & line tearing in super zoom - lopt whining | Ic7119 on small sigs board - check for dry joints at connector s11 | ||
| PHILIPS |
MD1.2
|
Dead - held in prot mode with no line dr & low ht | Micro faulty, also eeprom corrupt, por tr & 4v7 zener s/c, loptx faulty |