Make | Model | Problem | Solution | Date |
| | | |
Found: 70
|
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 | 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 | 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 |
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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 |
Sharp | CA10 | service mode | to enter service mode switch on while holding VOL- and CH+ together | 14-09-04 |
Sharp | CA10 51DS02H | no sound | IC104 NVM24C16 (RHIX1588BMZZ) | 14-09-04 |
Sharp | CA10 59/66DS03H | bottom half of pic Ok, top half stretched with bright line in the centre | 15V supply missing, replace fuse F601 1A near LOPTx | 14-09-04 |
Sharp | CA10 59/66DS03H | bottom half of screen dark on high contract scenes | replace D514 1N4148 (leaky), feeds off frame stage to pin 22 jungle IC201 | 14-09-04 |
Sharp | CA10 59/66DS03H | dead | C613 680nF 250V burn-up or buckled, also R613 2.2k R610 safety 33R (RRXZ0218BMZZ) | 14-09-04 |
Sharp | CA10 59/66DS03H | dead, line drive present on base of LOPTr but it is not being turned on | lack of bias to Q602 due to D605 o/c (RHDX0591BMZZ) | 14-09-04 |
Sharp | CA10 59/66DS03H | dead, neon light on | R704 68k 1W (no 5V to Micro) | 14-09-04 |
Sharp | CA10 59/66DS03H | distortion on right channel | SMD C2314 100nF leaky | 14-09-04 |
Sharp | CA10 59/66DS03H | excessive width with E/W error | replace R519 100k (o/c) | 14-09-04 |
Sharp | CA10 59/66DS03H | frame collapse | fuse F602 o/c (QFSJ2521CEZZ) | 14-09-04 |
Sharp | CA10 59/66DS03H | no remote or front control functions | R704, R705 68k 1W in 5V supply to Micro are high or o/c | 14-09-04 |
Sharp | CA10 59/66DS03H | no remote or local buttons function | R705 68k o/c (no supply to IC702) | 14-09-04 |
Sharp | CA10 59/66DS03H | no sound on speakers, Ok on headphones | SMD C2310 33nF leaky (45V line down to about 30V) | 14-09-04 |
Sharp | CA10 59/66DS03H | partial frame collapse and foldover | replace fuses F0601, F0602 rear of PCB, upgrade to 2.5A. If fuses Ok, check R617 22R | 14-09-04 |
Sharp | CA10 59/66DS03H | set won't start (no line drive) | D602 s/c in -13V supply (RHDX0504BMZZ) | 14-09-04 |
Sharp | CA10 59DS03H | Dead apart from neon glowing | R703/705 68k hi res | 14-09-04 |
Sharp | CA10 59DS03H | Dead apart from power light | 2 x 560k start up res hidden under chopper heatsink | 14-09-04 |
Sharp | CA10 59DS03H | Dead with mains fuse o/c | Q701 chopper FET s/c RH-TX0166BM22, D712 zener RH-EX0419BM22, BUH515 LOPTr - if stuck in st/by aft replacement Q702 BC338 in psu s/c | 14-09-04 |
Sharp | CA10 59DS03H | Field - no pic at top ? of raster | Field stage is supplied with + & -ve supplies fused by F601/2. Check these & Q501/2. Q501 faulty & replaced with a IRFI9020 (uprated device) | 14-09-04 |