| Make | Model | Problem | Solution | Date |
| | | |
| Found: 89
|
| Akura | CX35 Nicam | No sound | Replace Eeprom | 14-09-04 |
| Binatone | 19496 Cavalier | Sync - loss of sync. | D302. | 14-09-04 |
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| ITT | C14 Pica 1A | No startup - Chattering noise. | D658 ( ZPY12 ) s/c set will work without it , BYZ88 no good. | 14-09-04 |
| Philips | Nicam 3A | Int blowing 800Ma fuse F1642. | Increase to 1.25AT. | 14-09-04 |
| Sanyo | CAQO3002W A3A14 | No sound - ok thro' SCART | IC101 LA7680 | 14-09-04 |
| Schneider | 26" (It can also be found as Koerting model 26) | Starts but it is not possible to change programs or to search for channels. | Change Control chip SDA2030-A002 | 14-09-04 |
| Schneider | 26" (It can also be found as Koerting model 26) | Won't start, PS protection active. | Desolder Vertical IC, if it starts, change it. | 14-09-04 |
| Sharp | 37DM23H CA-1 | Bottom quarter of pic blanked out, no sound, no stopping at stns whilst tuning | Check serv mode settings ; (press vol down and channel up on the set and apply mains) - all settings were at 00 - EEPROM corrupted
| 14-09-04 |
| Sharp | 51DS-02S CA10 | Dead | Q602 (BUH515) & both audio amps IC2300 & 2301 (TDA7480) s/c, also C720 100uF/200V) blown top. | 14-09-04 |
| Sharp | 51DS-02S CA10 | HT high at 200v (112v) | Opto IC705 (MOC8106). | 14-09-04 |
| Sharp | 51DS02H CA10 | Sound absent | corrupted EEPROM (8-pin SMD IC104 24C16) due to DJ on LOPTx earthing pin (focus, screen pots). | 14-09-04 |
| Sharp | 51DS02H CA10 | When replacing EEPROM | switch set on, after 10 sec delay whilst micro writes data, tune all the channels & select weakest then sw off tv. To enter service mode hold Ch+ & Vol- on front panel while switching mains on. Set comes on in service mode on weakest chan, using ch+/- on R/C choose "AGC take over" in menu & press STANDBY, set will adjust AGC automatically.
Now correct geometry if reqd.& press STANDBY to memorize. To exit service mode simply switch off. | 14-09-04 |
| Sharp | 51DS05H CA10 | Int reverts to st/by | Fault can be induced by flexing main pcb - dry joints micro IC101 sm on print side underneath | 14-09-04 |
| Sharp | 51DT-25H CA1 | Stuck in st/by with motorboating from spkr | C712 220µ 16v in 10v supply almost o/c | 14-09-04 |
| Sharp | 66DS-03H CA10 | Dead - psu blown up due to faulty opto coupler | Replace Q702, 703 etc & opto - careful not to overheat it when soldering new one in or hi HT persists See Sharp Tech bulletin CTV20010101 | 14-09-04 |
| Sharp | CA1 | Replacing TDA884x/N1 with N2 | TDA884x versions 1Y and 2Y are not interchangeable.
Version 1Y is now obsolete. So if you use 2Y instead of 1Y make the following changes:
1. remove L205 (IF-VCO coil pin 13-14)
2. change R407 from 68R to 47R (SCART video out)
3. change R802 from 220R to 150R (Video in)
4. change R204 from 1M to 4.7M (pin 15 - Vcc)
5. write to EEPROM address 0C value 40 | 14-09-04 |
| Sharp | CA1 37DM23H | audio buzzing | connection between positions A1 and A2 on main PCB not made during production, connect with a lead | 14-09-04 |
| Sharp | CA1 37DT25H | blows LOPTr withing 1 min | C604 220uF 16V on -10V rail | 14-09-04 |
| Sharp | CA1 37DT25H | frame foldover at the top | C502 100uF 35V | 14-09-04 |
| Sharp | CA1 37DT25H | low contract, poor sync, no text | SMD Q801 (part no VS2SC2412KQ1) leaky (video driver to pin 24 jungle IC201) | 14-09-04 |
| Sharp | CA1 37ET35H | dead | R705 560k o/c | 14-09-04 |
| Sharp | CA1 37ET35H | no remote and faint humbar on pic moving upwards, manual ch. change Ok | C706 68uF 400V | 14-09-04 |
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| Sharp | CA1 51DT25H | dead | C713 , D710 (RHDX0577BMZZ) and Q701 S2055N | 14-09-04 |
| Sharp | CA1 51DT25H | dead | no volts to micro, replace Q704 (RHTX0130BMZZ) | 14-09-04 |
| Sharp | CA1 51DT25H | frame collapse, no sound, won't go to stby | no 10V line, replace Q500 BC328 | 14-09-04 |
| SHARP | CA10 | Dead | Secondary voltage was missing . R 713 (560 K ) in series with R 714 (560K) was O/C | 14-09-04 |
| Sharp | CA10 | green patches/strange colours (usually on bright scenes) | CRT shadowmask warping on excessive beam current. Enter service mode, select page 00 and set POS 04 (brightness) to 24; POS 05 (saturation) to 2C; POS 06 (contrast) to 4B. | 14-09-04 |
| Sharp | CA10 | No response to R/C or front controls | Check R704/5 68k but in this case the main micro IC101 C161K had a short on pin 74 data I/P - lifting this pin gave correct amplitude of data across R102. Chip is 80 pin sm device! | 14-09-04 |
| Sharp | CA10 | no sound | audio Ics muted due to pin 12 being held low, SMD C2310 or C2320 33nF leaky | 14-09-04 |
| Sharp | CA10 | not memorising customer preferences (col, bright, cont) every time the set switched on | there is no customer preference memory on these sets, alter for optimum in service mode | 14-09-04 |