| Make | Model | Problem | Solution | Date |
| | | |
| Found: 228
|
| Daewoo | DVF522P | Dead | Check/replace C53 1µ 100v, D63 RD16F or MA7160 16v zener, C64 680µ 16v, | 14-09-04 |
| Daewoo | DVT1482P | Dead | F4AH fuse o/c, chopper tr 2SD2499 s/c - used 2SD1555 in lieu, C811 100µ 16v hi esr, 220µ 25v hi esr | 14-09-04 |
|
|
| Daewoo | DVT1482P | Dead - mains fuse blackened & Chopper Tr s/c | TDA4601 control chip & C811 100µ 35v | 14-09-04 |
| Daewoo | DVT1482P | Dead with burning smell | LOPTx | 14-09-04 |
| Daewoo | DVT1482P CP310 | Sound absent in TV mode - ok in pback | Check RHS edge connector for dry joints/damaged print on video unit | 14-09-04 |
| Daewoo | DVT2082P | Int dead | Dry joint C817 100µ - remove plastic strut to see | 14-09-04 |
| Daewoo | DVT2082P | Red missing | Q552 2SA1266 on crt base | 14-09-04 |
| Philips | 20DV1 | Poor response to Infra Red Handset operation | It is possible that VCRs of the above types and having a week code of 9042 or 9043 may not always respond to signals from the remote control handset.
Cause:A small number of capacitors fitted in position numbers 2021 and 2022 on the operating panel (JDC) | 14-09-04 |
| Philips | 20DV1 | Production change | In VCRs from WD32 onwards coil 5005 on the family board (jfb) will be replaced by a fuse.
The fuse is given the position no. 1005.
The fuse rating is 250mA/125 volt.
The code no. of the fuse is 4822 252 51142.
IMPORTANT: The fuse becomes a safety c | 14-09-04 |
| Philips | 20DV1 | Replacing the combi head | After replacing the combi head the setting of the head height is referred to in Section 2:8:4 of the IDM deck manual. The method used is to set for maximum amplitude of the control track signal. In the above mentioned VCRs the signal is amplified in a lim | 14-09-04 |
| Philips | 21DV1 | Set does not react on Remote Control | Check and replace if necessary the IR receiver on the display PCB.
- for sets with IC7120 : 4822 218 10216
- for sets without IC7120 : 4822 214 33534 | 14-09-04 |
| Philips | 23DV1 | Audio not recorded; previous audio not erased | Remove connector from cable of erase-head and solder the wires directly on the erase-head. Check also whether metal-flakes are present in the flatcable connection of the audio-sync head.
Note: touching the wires can already hide the complaint! | 14-09-04 |
| Philips | 23DV1 | AUTOSTORE skips transmittors | In case of high RF voltages (> 80DB UV), some transmittors are not stored.
Solution: Modify time-constant in RF-AGC circuit:
R3720 becomes 1kOhm.
C2724 becomes 10 uF.
Introduced in production from week 9319 onwards. | 14-09-04 |
| Philips | 23DV1 | Codenumbers deckprocessors | Sets produced with factory code < WD30 use the intel video controller with mask version MMTD2-XU. (4822 209 32506) Sets produced with factory code WD30 and higher use the Toshiba video controller with mask version MMTD4-XU. (4822 209 32736) .
Whe | 14-09-04 |
| Philips | 23DV1 | Modification | For a better performance of the erase oscillator, the following components are modified in production:
POS. 2620 - 47 nF - 4822 121 51655
POS. 2622 - 33 nF - 4822 121 43996 | 14-09-04 |
| Philips | 23DV1 | Modification | From DECK production code WD22 onwards, a new lift has been applied (Sets production code WD40 or RJ12).
For "old" sets, the codenumber for the lift assembly 4822 443 63702 remains unchanged (but delivered with new lift and kit L).
For "new" sets, | 14-09-04 |
| Philips | 23DV1 | Rattle during fast-forward | If a Turbo-drive with Fast-Forward problems are brought-in for service:
Check first of all whether thooth-wheels 116 and 117 sufficiently grip in each other. If these tooth-wheels rattle-over-each-other during fast forward, replace following components | 14-09-04 |
| Philips | 23DV1 | Spare part information | A repair kit , containing PULLEY SHAFT + WORM SHAFT (POS. 47+48) is delivered with codenumber 4822 310 10657.
This kit can be used for all TURBO- and ECO mechanisms ! | 14-09-04 |
| Philips | 23DV1 | Supply does not start, D6115 defective | Replace diode 6115 on supply MSM1 by a 1N4148 (4822 130 30621). | 14-09-04 |
| Philips | 24DV1 | Audio not recorded; previous audio not erased | Remove connector from cable of erase-head and solder the wires directly on the erase-head. Check also whether metal-flakes are present in the flatcable connection of the audio-sync head.
Note: touching the wires can already hide the complaint! | 14-09-04 |
| Philips | 24DV1 | Codenumber correction | The codenumber of the front-cover (POS.22) has to be 4822 443 64166. | 14-09-04 |
| Philips | 24DV1 | Modification | For a better performance of the erase oscillator, the following components are modified in production:
POS. 2620 - 47 nF - 4822 121 51655.
POS. 2622 - 33 nF - 4822 121 43996. | 14-09-04 |
|
|
| Philips | 24DV1 | Spare part information | A repair kit , containing PULLEY SHAFT + WORM SHAFT (POS. 47+48) is .delivered with codenumber 4822 310 10657.
This kit can be used for all TURBO- and ECO mechanisms ! | 14-09-04 |
| Philips | 31DV3 | Change of threaded in time after rewind | After rewind to tape begin, the above VCRs go to the threaded in position. If no function is requested, after 6 minutes the VCR dethreads to the stop position where it stays for 2 minutes before returning to standby.
From week 41 the waiting time at th | 14-09-04 |
| Philips | 31DV3 | Intermittent loss of picture and sound, teletext also affected | Check EPROM on the teletext PCB.
Check IC 7751 (KSTX1), might be faulty when warm. | 14-09-04 |
| Philips | 31DV3 | Not recording Sound | The cause of this fault was traced to 3230, the resistor had gone high.
The resistor had changed from 2k7 to 4k3. | 14-09-04 |
| Sharp | 4BSA DV5161H | int. goes to stby | resolder blue tuning cap C610 near LOPTx | 14-09-04 |
| Sharp | 4BSA DV5161H | unstable line output from cold, no teletext | EEPROM IC1002 (CHIX1463CJHA), Q1010 BC338 o/c B-E, R604 3k3 0.33W o/c | 14-09-04 |
| Sharp | 4BSC DV5940H | dead, LOPTr s/c | Q600 2SD1546 s/c, SMD Q606 2SC2412 leaky, resolder scan coil plug | 14-09-04 |
| Sharp | 4BSC DV5940H | stuck in stby | D600 1N4936 s/c, R645 1R 1W o/c on LOPTx pin 3 | 14-09-04 |