| Make | Model | Problem | Solution | Date |
| | | |
| Found: 4551
|
| Philips | MD1.1E | Random switching between STEREO and MONO | Replace the uP by one of the following uPs:
VERSION...LANGUAGES...SERVICE CODE NUMBER
(M12BA1-4.0... F-D-NL-I...4822 900 10988
succ. of uPs with idents 3161, 3199, 3229 and uP SV02-M11C1-43)
(M12BA2-4.0...SW-DK-N-FI...4822 900 10984
successor of | 14-09-04 |
| Philips | MD1.1E | Red and green fly-back visible lines in top | Replace IC7119 TDA8366 (4822 209 90965).
| 14-09-04 |
| Philips | MD1.1E | Red picture with flyback-lines; set is switching off. | Check and replace if necessary T7322 (BF423) on the CRT-panel (4822 130 41646). | 14-09-04 |
| Philips | MD1.1E | Service Manual | Service Manual
All sets with chassis name MD1.1E AB are electrically identical to MD1.2E AA sets with a 30K micro processor.
Therefore there is no seperate MD1.1E AB documentation.
The Service Manual MD1.2E AA can be used.
The codenumbers are:
| 14-09-04 |
| Philips | MD1.1E | Set does not go in stand-by (instead orange LED is lit). | Check R3588 (3E3) and replace if necessary
| 14-09-04 |
| Philips | MD1.1E | Set in protection after LOT replacement | After replacing the LOT during a repair, the set still does not work and goes to (BC) protection (LED blinks).
Check and replace if necessary in the EHT-info circuit:
On the Large signal panel (A2):
R3452, R3465 and C2450
On the Small signal panel | 14-09-04 |
| Philips | MD1.1E | Set in protection with several error codes in the error buffer | Errors caused by intermittent I2C communication problems. Usually one of the error codes is related to the MSP34x0 sound processor.
Check pin 12 of connector I46 on the Audio Module (SCL line). Look for a badly soldered (oxidated) pin 12. Resolder pin 1 | 14-09-04 |
| Philips | MD1.1E | Set switches from stereo or dual to mono | IC7353 (MSP 3400; 4822 209 90562) replaced.
| 14-09-04 |
| Philips | MD1.1E | Set switches off and on. | Check LOT L5430
21" 4822 140 10526
25/28" 4822 140 10527 blackline S
25/28" 4822 140 10528 black matrix | 14-09-04 |
| Philips | MD1.1E | Set switches random to other picture format. | Update microprocessor to version WS1X1.1
WS111.1: 4822 900 10853
WS121.1: 4822 900 10851
WS131.1: 4822 900 10852
WS151.1: 4822 900 10855
WS161.1: 4822 900 10854 | 14-09-04 |
|
|
| Philips | MD1.1E | Set totally inoperative, no LEDs. Mainsfuse blown. | T7540 (P4NA60FI; 4822 130 63787) shortcircuit.
IC7520 (MC44603P; 4822 209 90025) replaced.
Cause C2544 (220K; 4822 126 13451) defective. | 14-09-04 |
| Philips | MD1.1E | Set totally inoperative. Allways in st.by. Only red LED, no green LED. | Check and replace if necessary D6423 (BY228; 4822 130 41275) on the LSP. | 14-09-04 |
| Philips | MD1.1E | Sometimes purper flashes in picture. | Check and remount flatcable between SSP and CRT panel (S40-R40). It may not be mounted against the EHT cable. | 14-09-04 |
| Philips | MD1.1E | Sometimes white flybacklines in picture. | Check soldering pins of LOT L5430.
| 14-09-04 |
| Philips | MD1.1E | Sound is switching between stereo and mono. | Check/replace IC 7353 (MSP3400-TC15; 4822 209 90562)
| 14-09-04 |
| Philips | MD1.1E | Stand-by not possible and/or 5V stabiliser defective. | Resistor R3588 defective because of too high switch-off current.
Codenumber R3588 (3R3, 0.5W; wrong in the Service Manual) is 4822 052 11338.
Change C2561 (4700 uF) into 3300 uF/16V : 4822 124 40784.
(If the +5V has been too high, also uP and memory-I | 14-09-04 |
| Philips | MD1.1E | Stand-by not possible and/or 5V stabiliser defective. | Resistor R3588 defective because of too high switch-off current.
Codenumber R3588 (3R3, 0.5W; wrong in the Service Manual) is 4822 052 11338.
Change C2561 (4700 uF) into 3300 uF/16V : 4822 124 40784.
(If the +5V has been too high, also uP and memory-IC | 14-09-04 |
| Philips | MD1.1E | Strange greek characters on the screen | replace microprocessor IC7600 by software version 38
replacement overview of microprocessors in MD1.1:
mid11-we(3161)-->replaced by mid11-38(version:3199) 4822 209 90957
mid12-we(3162)-->replaced by mid12-38(version:3202) 4822 209 90958
mid13-we(3163) | 14-09-04 |
| Philips | MD1.1E | Stripes in picture when receiving Ch 35 or higher. | Check zenerdiode D6003 (BZX79- C33; 4822 130 34142)
| 14-09-04 |
| Philips | MD1.1E | Supply goes in protection during start-up | Change item C2137 on the Small Signal Panel to: 2.2uF (10V) capacitor 5322 126 14103 | 14-09-04 |
| Philips | MD1.1E | SURVEY CRT PANELS AND LINE OUTPUT TRANSFORMERS | SURVEY CRT PANELS AND LINE OUTPUT TRANSFORMERS
version: CRT panel Code number LOT (5430) code number
21" Black Matrix 4822 212 32054 4822 140 10526
24" 16/9 4822 212 3 | 14-09-04 |
| Philips | MD1.1E | Text "ELUID" in menu, in stead of "GELUID". (Dutch menu) | Micro processor IC7600 Toshiba 3199 mid 3.8 replaced by version 3.9 (4822 209 12781) | 14-09-04 |
| Philips | MD1.1E | The bottom left side of picture shows a green teletext symbol | The bottom left side of picture shows a green teletext symbol whether or not the teletext is switched on.
Subtitling is selected, but the subtitling page is not stored.
Switch off the subtitle function by pressing the subtitle knob on the remote contro | 14-09-04 |
| Philips | MD1.1E | Totally inoperative. Red LED flashing. | Check diode D6572 (BYV28-200/20; 4822 130 80791).
| 14-09-04 |
| Philips | MD1.1E | Typenumber information | Typenumber information
In the MD1.1E chassis 2 types of SMPS transformers (item 5550) are used.
These are:
SERVICE CODE NUMBER DESCRIPTION ON TRAFO USED WITH PICTURE TUBE
4822 146 31469 TRANSF POW 10290250 21"
4822 | 14-09-04 |
| Philips | MD1.1E | Unstable picture | Check and replace if necessary IC7556 (CNX82; 4822 130 10025)
| 14-09-04 |
| Philips | MD1.1E | Unwanted format change from EXPAND to 4/3 | If the current microprocessor is one of the following versions:
MID11W-1.6 ident 3232
MID11W-1.8
MID11W-1.9 ident 3273
replace it by MIWS11-1.1 ident 3324 (service code number is 4822 900 10853)
REMARKS :Implemented in production from we | 14-09-04 |
| Philips | MD1.1E | Vertical amplitude of picture is too high | Change item C2137 on the Small Signal Panel to: 2.2uF (10V) capacitor 5322 126 14103 | 14-09-04 |
| Philips | MD1.1E | Vertical bright stripe in picture. | Check and replace if necessary IC7119 (TDA8366; 4822 209 90965).
| 14-09-04 |
| Philips | MD1.1E | Vertical lines on left side in picture. | Replace R3430/3431 (2K7; 0.33W) by 2K7 0.5W. | 14-09-04 |