| Make | Model | Problem | Solution | Date |
| | | |
| Found: 4551
|
| Philips | L6.1 | Noise on one channel, wrong stereo indication | Noise on one channel, or stereo indication while transmission is mono
(or with NICAM reception).
On audio module, change IC7353 to MSP3400C-C6 (4822 209 13099)
| 14-09-04 |
| Philips | L6.1 | ONLY FOR 20" CRT A48ECR141X18 changed into A48ECR | ONLY FOR 20"
CRT A48ECR141X18 changed into A48ECR143X18
------------------------------------------
For service code 4822 131 11314 was initially delivered picture tube
A48ECR141X18. This picture tube is however no longer available and is
replaced by type | 14-09-04 |
| Philips | L6.1 | Picture jumps to the left, narrow picture | Change IC7100 TDA8361
| 14-09-04 |
| Philips | L6.1 | Picture size 20" too big | There is no adjustment for H-width nor for the power supply.
When R3507 is changed, the output voltage (+96S) will change.
| 14-09-04 |
| Philips | L6.1 | Servicing the Philips L6.1 Chassis | See TV Mag Jan 2000 | 14-09-04 |
| Philips | L6.1 | Set does not always start-up | Check and replace if necesarry item 3134 by a 27 Ohm resistor with
service-code 4822 053 10279 | 14-09-04 |
| Philips | L6.1 | Set total inoperative, no LED | Check/replace T7504, D6506/6514, F1501, R3514/R3515
| 14-09-04 |
| Philips | L6.1 | Set totally inoperative, no LED | Check/replace first R3508 (6K8), then mount supply kit if necessary.
| 14-09-04 |
| Philips | L6.1 | Set totally inoperative. No LED on. | Check/replace LOT L5422 and line transistor T7422 (BUT11AX).
| 14-09-04 |
| Philips | L6.1 | Sometimes hang-up of the set; only for teletext version ! | In L6.1 chassis change pos 7505 to BC337-40, codenumber 4822 130 41344
and change pos 3500 to 470 ohm, service codenumber 4822 051 20471.
(All changes are in diagram A1, power supply.)
REMARKS :
Only teletext version.
| 14-09-04 |
|
|
| Philips | L6.1 | Strange crack/noise if the sets are broadcasted by cable network | Apply new IF saw filter called CE (Marking) module (4822 212 11352).
This module can be switched between BG and DK.
How to adapt the set:
* first remove saw filter on pos 1001 and replace this by CE module
4822 212 11352.
* Solder the black wire i | 14-09-04 |
| Philips | L6.1 | Supply hiccupping. | Check/replace line transistor T7422 (BUT11AX).
| 14-09-04 |
| Philips | L6.1 | Supply improvement | Supply improvement
------------------
If line transistor has short-circuit, then also the supply can become
defective.
To prevent this, mofify supply:
2503 33nf 5322 121 42489
3512 68K 4822 116 52297
6510 BZX79-C12 4822 130 34197
Check also whether C2512 | 14-09-04 |
| Philips | L6.1 | Supply inoperative. | Check/replace R3518 120KOhm.
| 14-09-04 |
| Philips | L6.1 | Timer does not work properly above 4 hours. | Change software into new version;codenumbers are still identical.
4822 209 14646:TXT 1 p Mono Pan-European L6TXTMOEU-1.1
3/4 keys:SAA5290ZP/072
4822 209 15425:TXT 1 p Mono Greek/Turkisch L6TMOGT-1.1
3/4 keys:SAA5290ZP/074
482 | 14-09-04 |
| Philips | L6.1 | Violet bar at the right side of the picture with Canal+ decoder. | Add on pos C2423 (Position unbekannt) a capacitor of 680 pF. Codenumber 4822 126 12269. | 14-09-04 |
| Philips | L6.1 | White picture with flyback lines; VG2 reacts at focus adjust. | Repair picture-tube by artificial flashover
| 14-09-04 |
| Philips | L6.1 14PT1332/05 | Field collapses to about 1" aft warm up | Scan coils - measured 12.6R cold & 2R2 when heated | 14-09-04 |
| Philips | L6.1 14PT1532 | No picture, hissing noise from speakers ( like no aerial), front LED not lit. Only 1v on micro supply line | Replaced 7505 BC548B, 5V reg from 5500 transformer. Philips Mod. Replace BC548B with a BC337-40 & change R3500 from 330R to 470R | 14-09-04 |
| Philips | L6.1 20PT1552 | Contrast poor | TDA8361 | 14-09-04 |
| Philips | L6.1 21PT1532 | Int locks up or loses pic | Carry out the following mod Remove Tr7505 (BC548B) & fit a BC337-40, change R3500 from 330ohm to 470ohm (these two are in the 5v rail) if any unusual faults persist then suspect corrupted EEPROM (part No 4822 2096 2098) | 14-09-04 |
| Philips | L6.1/6.2 | For repairing PSU | Mod kit available from CHS P10663 ?8.34 | 14-09-04 |
| Philips | L6.1AA | Sound goes off & no R/C functs when heated | Micro faulty | 14-09-04 |
| Philips | L6.1AA | off - tr 7503 s/c R3514/3515 o/c | fit psu kit & check lop tr, lopt, opto coupler & D6426 NOTE- will not run on dummy load - use variac with lop tr removed | 14-09-04 |
| Philips | L6.2 | A 50 Hz hum is audible in the loudspeaker at min volume | Done at the audio module.
1. Check the index number of the audio module (number in white at the
right side of ls connector 0071, copper side).
If the number is 8211 014 1038 4(!): check if there is a
capacitor between pin 1 and 2 of ic7205; REMOV | 14-09-04 |
| Philips | L6.2 | Addition to Service Manual | Addition to Service Manual
--------------------------
In addition to the L6.2 Chassis manual, following codenumbers are
different for 90 degr./ 21" sets:
picture tube, A51EAL155X47, 4822 131 11105.
LOT, pos 5422, 4822 140 10635.
SOPS transfo | 14-09-04 |
| Philips | L6.2 | Autosearch does not stop on all video carriers. | The reason is a too high scanning speed; Connect 1Mohm + 22nF between
R3603/R3604 and R3619/R3662 in circuit diagram A4.(R3619/R3662 is in
circuit diagram A4: A2-15; this point is also connected with wirestrap
9126 of diagram A2.)
The resistor of 1Mohm is | 14-09-04 |
| Philips | L6.2 | 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 | 14-09-04 |
| Philips | L6.2 | Codenumber information | Codenumber information
----------------------
During production item 7504 (STP4NA40FI) on the mono carrier has been
changed into the STP5NB60FP - 9322 126 65687.
If you change during repair the STP4NA40FI into the STP5NB60FP also
the following items have | 14-09-04 |
| Philips | L6.2 | Correction to styling 182 of Product Survey 1997-4 (4822 727 21584) | The code number mentioned at position 10 of styling 182 is of the 3-fold control frame (4822 464 10326).
The code number for the 4-fold control frame is 3111 254 24531. | 14-09-04 |