| Make | Model | Problem | Solution | Date |
| | | |
| Found: 4551
|
| Philips | 37TR126 | Set produces audible noise in stand-by | Add a small LEBL (leading edge blanking) PCB, to avoid auto oscillation of transformer 5330 (or 5331). A modification letter is included with the LEBL PCB.
This PCB is available with service nr. 4822 214 12173. | 14-09-04 |
| Philips | 37TR126 | Spare part information | If the lever inside the mains-switch is broken, the switch doesn't remain in the "ON" position.
Solution: replace the switch by a new one. Improved switches of a newer production range are on stock. (4822 276 13542) | 14-09-04 |
| Philips | 37TR126 | Start up problems | When the set is switched on by the mains-switch while a cassette is in the set, the front LED starts blinking, but the set doesn't start.
Solution: Check the primary voltage (Ubat) and adjust this for 14" sets to exactly 101.5 Volt. (See chapter 3.1.1 of | 14-09-04 |
| Philips | 37TR126 | Start up problems after replacing TS7352 | When TS7352 is replaced, it can happen that the set doesn't start up properly.
There are 2 possible solutions for this problem:
- Use SGS type MTP3055E (4822 130 63726).
- In case of a motorola type MTP3055V (4822 130 60838), add a 22 uH coil solde | 14-09-04 |
| Philips | 37TR126/03 | Codenumber information | A new software version (PTCP2-7) is available for the control uP (IC 7801). Service codenumber is 4822 209 15271.
This new version is only used in the following sets:
14PV263/01, 14PV162/01, 14PV162/05, 14PV162/07, 14PV163/05, 14PV163/05H, 14PV263/01 | 14-09-04 |
| Philips | 37TR126/03 | Option code: 00398 | From week 02/97 onwards the option code is printed on the typesticker. Always use this code ! For early sets without this information on the typesticker, the option code is: 00398. | 14-09-04 |
| Philips | 37TR126/38 | Codenumber information | A new software version (PTCP2-7) is available for the control uP (IC 7801). Service codenumber is 4822 209 15271.
This new version is only used in the following sets:
14PV263/01, 14PV162/01, 14PV162/05, 14PV162/07, 14PV163/05, 14PV163/05H, 14PV263/01 | 14-09-04 |
| Philips | 37TVB10 | Key set | The key set assy has been codified for all b-range tvcr's. This will allow to change the keys without having to change the complete frame. Servicenr.: 4822 410 11076.
Key set for: 37TR120/01/08 - 37TR126/03/38 - 37TR125/38N - 37TVB10/39N. | 14-09-04 |
| Philips | 37TVB10/39N | Codenumber information | A new software version (PTCP2-7) is available for the control uP (IC 7801). Service codenumber is 4822 209 15271.
This new version is only used in the following sets:
14PV263/01, 14PV162/01, 14PV162/05, 14PV162/07, 14PV163/05, 14PV163/05H, 14PV263/01 | 14-09-04 |
| Philips | 3A | + 140 V not present | Replace TS7687 (BUT12A; 4822 130 43919)
Also exchange TS7674 (BC337; 4822 130 40855)
TS7685 (BC547; 4822 130 44257)
TS7686 (BC369; 5322 130 44593)
| 14-09-04 |
|
|
| Philips | 3A | + 140 Volt switches off. | Check soldering contacts of SOPS transformer and line-transformer.
| 14-09-04 |
| Philips | 3A | 3 & 4 1/2 page layouts. | 3 & 4? page layouts. October 1993 page 857. | 14-09-04 |
| Philips | 3A | All voltages from power supply and line o/p stage OK. | Check reset line to uPc panel (1008). This voltage should be
approx 1.5 volts. If the voltage is low, check the POR area but
also check the reset transistor - T7841, BC548 on the micro panel.
| 14-09-04 |
| Philips | 3A | BUT12A SC | RESOLDER CHOP TX + CHECK PRINT ON PINS 2 + 11 FOR CRACKS !!!VIP!!! | 14-09-04 |
| Philips | 3A | Characters wrong | Check U 1018 (IF module Europe:4822 212 22439)
(IF module France:4822 210 10295)
| 14-09-04 |
| Philips | 3A | Control does not function (+5 V on pin 28 IC 7830, 7831 present) | Replace IC 7830 (MAB 8461P/W131; 4822 209 11611)
IC 7831 (MAB 8461P/W147; 4822 209 73359)
| 14-09-04 |
| Philips | 3A | Control does not function well | A. for sets with 50 Hz and UV 816
Replace IC 7830 (MAB 8461P/W131; 4822 209 11608)
IC 7831 (MAB 8461P/W147; 4822 209 73359)
B. for sets with 100 Hz and UV 816
Replace IC 7830 (MAB 8461P/W164; 4822 209 73585)
IC 7831 (PCF84 | 14-09-04 |
| Philips | 3A | Cushion distortion cannot be adjusted (East-West). | Check diode 6610 (4822 130 41602). | 14-09-04 |
| Philips | 3A | Dead | Capacitor C2609 in line output stage.
| 14-09-04 |
| Philips | 3A | Dead - HT only 35v | HT = 135v when lop stage dis'd - LOPTx faulty | 14-09-04 |
| Philips | 3A | Dead or lines in the upper part of the screen. | Replace fuse 1642 (1 A) with 1,25 A (order code 4822 253 10075) in
33" sets that has NICAM and PIP.
| 14-09-04 |
| Philips | 3A | Dead. | F1601 EW feed 315Ma o/c. | 14-09-04 |
| Philips | 3A | Display jumps from channel to channel. | Flat cable of keyboard unit is defective.
| 14-09-04 |
| Philips | 3A | Does not function (Stand-by LED and Crispening LED blink both) | Replace C2618 (1,5 nF; 4822 126 12274)
| 14-09-04 |
| Philips | 3A | East/west defective. | Check D 6610 (BYW 95C; 4822 130 41602)
| 14-09-04 |
| Philips | 3A | Entering service mode | Press mono button on front of set & sleep timer/print on R/c. 4 dashes appear, 1st 2 digits is parameter, 2nd 2 is value. | 14-09-04 |
| Philips | 3A | Flashing on picture (flasher confirming a video output fault) | Solder dry joints on CRT base PWB, replace CRT base socket and
clean CRT pins.
| 14-09-04 |
| Philips | 3A | Goes into Standby/Protection | Check Transistor 7731 (BC566) for E/C short circuit (4822 130 40989).
| 14-09-04 |
| Philips | 3A | Hum on standby | Build in modification 4822 212 23273
(Mounting-instructions are included)
| 14-09-04 |
| Philips | 3A | In VHF frequencies only noise. | Defective channel selector.
| 14-09-04 |