| Make | Model | Problem | Solution | Date |
| | | |
| Found: 4551
|
| Philips | FL1.2 | Line Output Transformers and DAF changes. | Line Output Transformers and DAF changes.
-----------------------------------------
The table below, shows types used, related to the chassis
configuration.
Chassis DAF/ Codenumbers Mech.
Panorama LOT | 14-09-04 |
| Philips | FL1.2 | Line-oscillator cannot be adjusted. | Change R3051, on the LFR (digital scan) box into 30K (4822 051 10303)
REMARKS :
Introduced in production in week 9317. | 14-09-04 |
|
|
| Philips | FL1.2 | Low Brightness TXT and OSD, Picture OK | If this condition occurs, check the Option Codes.
Resetting the Option Code numbers as per the Service Manual provided
the cure.
| 14-09-04 |
| Philips | FL1.2 | Low frequency hum from subwoofer, buzz from right hand squeeter. | Check DC level on pin 1 and 9 of IC7011 (TDA1521).
If not correct, replace (4822 209 63913).
| 14-09-04 |
| Philips | FL1.2 | Modification of the stand-by SOPS | Modification of the stand-by SOPS
---------------------------------
Due to a shortcircuit in the stand-by SOPS it can happen that fuse
1250 breaks down too slowly. Because of this the fuse can carbonize
and the current will flow for a to long time which c | 14-09-04 |
| Philips | FL1.2 | Movie expand mode inoperative. | Blank raster present when movie expand selected with no OSD or
menus. Check sandcastle pulse on pin 15 of IC7800 - HEF4053 CMOS.
If low in amplitude when movie expand selected replace IC7800.
(5322 209 10576)
| 14-09-04 |
| Philips | FL1.2 | Movie expand mode inoperative. | Blank raster present when movie expand selected with no OSD or
menus. Check sandcastle pulse on pin 15 of IC7800 - HEF4053 CMOS.
If low in amplitude when movie expand selected replace IC7800.
(5322 209 10576)
| 14-09-04 |
| Philips | FL1.2 | No colors in TV mode | Check IC7365 (TDA4650) on the SSP (4822 209 30837)
| 14-09-04 |
| Philips | FL1.2 | No LEDs blinking, no +Vstart (17,5V), no +5standby (5.5V) | Check TS7250 (4822 130 62509; BUX85F). In case of a failure of
TS7250 it is recommended to change the following components on the
Large Signal Panel.
Position Component New Code no.
C2260 470pF 4.7nF 4822 122 317 | 14-09-04 |
| Philips | FL1.2 | No sound, "ON, Standby, I" LEDs blinking | 10MHz crystal 1602 on the SSP defective, 4822 242 80276
| 14-09-04 |
| Philips | FL1.2 | No tuning, set shuts off, no CVBS on pin 23 of the tuner | Tuner 1160; check/replace.
| 14-09-04 |
| Philips | FL1.2 | Overview of SOPS repair kits | Overview of SOPS repair kits
----------------------------
FL1.0 AG00 upto AG03 4822 310 20492
FL1.0 AG04 and higher 4822 310 31921
FL1.1 25" and 28" 4822 310 31919
FL1.1 33" 4822 310 31932
FL1.2 4822 310 31932
FL1.6 | 14-09-04 |
| Philips | FL1.2 | Picture disappears (fly back lines), ON STEREO and DUAL LEDs blink | Check IC7430 (TDA4680). When TDA4680 is too hot there is no picture
(4822 209 31592).
| 14-09-04 |
| Philips | FL1.2 | Picture disappears shortly after 30" or control does not function. | When hot, 13,5 MHz clock stops working; change the value of R3123
to 1k2.
| 14-09-04 |
| Philips | FL1.2 | Picture often dark | Check IC7201 in High End-box (SAA9042P/A; 4822 209 31851)
| 14-09-04 |
| Philips | FL1.2 | Picture twists from top | Voltage of pin 8-IC7450 (TDA3654Q) on the LSP has raised to ca. 20 V.
Check diode 6451 (BZX79/C3V6; 5322 130 34834 or
BZX79/C10; 4822 130 61219)
| 14-09-04 |
| Philips | FL1.2 | Picture twists from top | Voltage of pin 8-IC7450 (TDA3654Q) on the LSP has raised to ca.
20 V. Check diode 6451 (BZX79/C5V6; 4822 130 80954).
| 14-09-04 |
| Philips | FL1.2 | PIP picture not in order. | Check R3345 (4822 111 41424) in PIP unit, check IC7755
(4822 209 63423).
| 14-09-04 |
| Philips | FL1.2 | Presets on picture tube panel and deflection unit | Presets on picture tube panel and deflection unit
-------------------------------------------------
Some sets have a preset R3739 in the peak beam current limiting
circuit on the picture tube panel (see circuit diagram E in the
FL1.2 AB/BB service manual | 14-09-04 |
| Philips | FL1.2 | Production modifications | Production modifications
------------------------
Position Type New type Code no. Introduced
7137 X2404P ST24C04B1 4822 209 52316 WK9208
7320 CNX83A CNY17-3.6 4822 130 83177 WK9226
7430 TDA4680 TDA4 | 14-09-04 |
| Philips | FL1.2 | Red, green and blue horizontal line in top of the picture | Pin 8 IC7450 is 22V instead of 12V.
Replace C2452 (220uF; 4822 124 41716) and
D6451 (BZX79-B10; 4822 130 61219).
| 14-09-04 |
| Philips | FL1.2 | Red, green and blue horizontal line in top of the picture | Pin 8 IC7450 is 22V instead of 12V.
Replace C2452 (220uF; 4822 124 41716) and
D6451 (BZX79-B10; 4822 130 61219).
| 14-09-04 |
|
|
| Philips | FL1.2 | Repair procedure 100HZ box and LFR (Digital Scan) | Repair procedure 100HZ box and LFR (Digital Scan) box.
------------------------------------------------------
Untill now these panels are send back with and without the metal
screening box.
To clarify the situation all these panels should be send back
wit | 14-09-04 |
| Philips | FL1.2 | Replacement of IC7366 TDA4660 by TDA4661/V2. | Replacement of IC7366 TDA4660 by TDA4661/V2.
--------------------------------------------
If the TDA4661/V2 is a replacement of the TDA4660 version, execute
the following modification:
Remove C2386 and R3385
Change R3383 into 33 kOhm (4822 051 10333) | 14-09-04 |
| Philips | FL1.2 | SAT box TXT | SAT box TXT
-----------
Modification: item 3333 added 4822 116 52284 (47k)
Remark: mounted between pin 11 of IC7330 and L5350.
Reason: pull-up resistor needed for D2sync of the TPU (TPU error)
Production intro date: week 9234.
| 14-09-04 |
| Philips | FL1.2 | SAT box TXT | SAT box TXT
-----------
Modification:
item 1802 changed into 4822 242 81427
(7,2 MHz FC >= +95kHz)
item 1808 changed into 4822 242 81428
(7,2 MHz FC >= -95kHz)
Remark: 4822 242 81429 has a blue marker
4822 242 81428 has a red marker
Prod | 14-09-04 |
| Philips | FL1.2 | Set can only be operated with Remote Control | Check whether "Child Lock" is disabled. To check this, see
"Frequently Asked Questions", "How to disable Child Lock".
| 14-09-04 |
| Philips | FL1.2 | Severe Moire patterning | Most modern Colour Televisions use Automatic Gray Scale Tracking and
while the setting of the G1 may not seem to have a major effect on the
picture brightness on a modern set, incorrect adjustment can have the
effect of causing severe Moire patterning if | 14-09-04 |
| Philips | FL1.2 | Sometimes in protection, or hor. width varies | Check or resolder on LSP the pins of E/W bridge coil 5521.
| 14-09-04 |
| Philips | FL1.2 | Spoke on 134,25 and 287,25 MHz in proscan sets. | Spoke on above mentioned frequency can be solved by adding two
capacitors of 33pF (5322 122 32072) on the LFR box.
- between pin 10 of H22 and earth (pin 5 of H22) (CVBS).
- between pin 7 of H21 and earth (pin 4 of H21) (TXT INT).
| 14-09-04 |