Sharp Repair Tips
Search: sharp
Results: 1789
Results: 1789
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| 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 | ||
| SHARP |
CA10
|
No sound | Audio ics muted due to pin 12 being held low, smd c2310 or c2320 33nf leaky | ||
| 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! | ||
| 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. | ||
| SHARP |
CA10
|
Dead | Secondary voltage was missing . r 713 (560 k ) in series with r 714 (560k) was o/c | ||
| SHARP |
CA1 51DT25H
|
Frame collapse, no sound, won't go to stby | No 10v line, replace q500 bc328 | ||
| SHARP |
CA1 51DT25H
|
Dead | No volts to micro, replace q704 (rhtx0130bmzz) | ||
| SHARP |
CA1 51DT25H
|
Dead | C713 , d710 (rhdx0577bmzz) and q701 s2055n | ||
| SHARP |
CA1 37ET35H
|
No remote and faint humbar on pic moving upwards, manual ch. change ok | C706 68uf 400v | ||
| SHARP |
CA1 37ET35H
|
Dead | R705 560k o/c | ||
| SHARP |
CA1 37DT25H
|
Low contract, poor sync, no text | Smd q801 (part no vs2sc2412kq1) leaky (video driver to pin 24 jungle ic201) | ||
| SHARP |
CA1 37DT25H
|
Frame foldover at the top | C502 100uf 35v | ||
| SHARP |
CA1 37DT25H
|
Blows loptr withing 1 min | C604 220uf 16v on -10v rail | ||
| SHARP |
CA1 37DM23H
|
Audio buzzing | Connection between positions a1 and a2 on main pcb not made during production, connect with a lead | ||
| 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 | ||
| SHARP |
C3720H 14A
|
St/by only after brief green led | R521 3r9 in 24v supply o/c - next to loptx | ||
| SHARP |
C3720H 14A
|
Reverts to st/by at sw on | 122v ht to lop but no line drive; r521 3r9 fusible res in fop 24v supply o/c - check d502 | ||
| SHARP |
C3720H
|
Weak blue drive | D807 on small sub panel connected to crt base leaky (use 1n4148 in lieu) & tda3566 dec chip | ||
| SHARP |
C3720H
|
Tuning drift | Ic1003 - used ztk33 | ||
| SHARP |
C3720H
|
Striations on picture & 'black fingers' | Lopt o/c pins 6 to 7. can be replaced with hr7675. short out pin 8 to pin 5, then wrap the flying loose wire around the lopt 1 extra turn then fit in pins 11 & 12 reverse them if you get loud whistling ! |