| Make | Model | Problem | Solution | Date |
| | | |
| Found: 711
|
| Sharp | 12P-41H | No pic - crt htrs lit - no EHT | LOPTx | 14-09-04 |
| Sharp | 14B | st/by only | vid proc IC801 TDA8362 u/s - line osc section dead | 14-09-04 |
| Sharp | 15AT15H | 3 coloured lines on the top of the picture | replace D504 (measured Ok). I used 1N4005 as a replacement. | 14-09-04 |
| Sharp | 21LV1 | Dead | Chopper Tr 2SD1884, D706 RG2 & LOPTr leaky | 14-09-04 |
| Sharp | 22DS03H | Field - only half a scan | Check fuses F601 & 602 2.5A | 14-09-04 |
| Sharp | 28hw 53h | SHARP 28hw 53h stuck in standby | check line output transistor for short circuit, if it is relace low voltage caps in line drive circuit particularly on the -10v rail, will also probably have damaged e-w correction transistor , loading coil and other parts in circuit, check to see if ovp diode across c720 on print side is short circuit if it is replace the optocouplers in the psu. | 19-05-06 |
| Sharp | 28HW53H DA50W | Blurred pic | C1815 100nfd SM device leaky, dragging 12 volts down to IC1801 on CRT base | 14-09-04 |
| Sharp | 37AM-23H | NVM corrupt | Replace IC1002 & reprog NVM | 14-09-04 |
| Sharp | 37AM12H | Poor pic/sound - noisy | Unable to get correct results in service mode - NVM pt no CH-IX1463CJHC | 14-09-04 |
| Sharp | 37AM12S | Service Menu to acces service mode | Power off at switch
Hold -Volume & +Ch & turn set on switch (set should be service mode)
Press Ch+ until NVM (last service setting)
Now use volume control on remote change top (red) setting to "C5"
Now press "0" on the remote
Now put set into standby
Now turn set of at switch
The set should now be able to be tuned in | 14-09-04 |
|
|
| Sharp | 37AM23 | No green - EEPROM corrupted | Replace Q708 & Q704 BC338-40 in psu & C716 220µ 10v | 14-09-04 |
| Sharp | 37AM23H | CHILD LOCK ON , PIN NOT KNOWN . | PRESS VOL - ON TV & CHILD LOCK ON REMOTE TOGETHER , PRESS MODE ON REM USING CHANNEL +/- TO SELECT CHILD LOCK , PRESS MODE , E | 14-09-04 |
| Sharp | 37AM23H | Child Lock removal - pin no not known | PRESS VOL - ON TV & CHILD LOCK ON REMOTE TOGETHER , PRESS MODE ON REM, USING CHANNEL +/- TO SELECT CHILD LOCK , SELECT NEW PIN PRESS MODE , E. | 14-09-04 |
| Sharp | 37AM23H | Corrupt NVM - OSD is off to right of screen | Replace EEPROM available from WVE ?5 & adj elect screwdriver | 14-09-04 |
| Sharp | 37AM23H | Dead - HT only 40v at LOPTr coll & whining | R704/5 560k | 14-09-04 |
| Sharp | 37AM23H | No tuning & osd almost off screen | NVM chip IC1002 | 14-09-04 |
| Sharp | 37AM23H | To enter service mode | Press & hold front '+P' & '-V' keys whilst sw on - note hex settings b4 adj. To exit menu just sw off tv.Select with chan +,- ; Adj with vol +,- | 14-09-04 |
| Sharp | 37AM23H 5BSA | Service mode adjustments | Hold vol up, vol down & chan up buttons whilst switching on | 14-09-04 |
| Sharp | 37AM23H 5BSA | Snowy & buzzing - wont tune or prog properly | EEPROM IC1002 replacement reqd | 14-09-04 |
| Sharp | 37AM23H 37AT25H | Stuck in child lock , pin not known . | Switch TV on at mains switch , press vol down on TV and child lock on handset together ( on handset only from now on ) press | 14-09-04 |
| Sharp | 37AT25H | CHILD LOCK ON , PIN NOT KNOWN . | PRESS VOL - ON TV & CHILD LOCK ON REMOTE TOGETHER , PRESS MODE ON REM USING CHANNEL +/- TO SELECT CHILD LOCK , PRESS MODE , E | 14-09-04 |
| Sharp | 37AT25H | Dead | R704/5 560k 1/2w hi res | 14-09-04 |
| Sharp | 37DM23H | Dead - no st/by | R704 560k o/c & check R705 560k | 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 | 37DM23SC | Pin code resetting when lost | Press "Lock" key on rcu & vol down on Tv, press "mode" on rcu select "lock", "mode" "turn off lock" option. | 14-09-04 |
| Sharp | 37DT25H | No sound/pic or o/p from psu - nothing blown | R704/705 560k ?w | 14-09-04 |
| Sharp | 37ET35H | Dead - LED not lit | Q704 (BC338-40), which had a hole blown in the case. | 14-09-04 |
| Sharp | 37ET35H | Whistles in st/by | Put glue over C705 (official mod) | 14-09-04 |
| Sharp | 37FT16FP | Child lock cancel | Switch on TV with vol - /prog + pressed to access service mode. Chan + to scroll menu - stop at n v m - a red & a green 2 digit no. appears. Use vol + until green no.C5 changes to 5 Red display shows 00 for lock to be off. Change 01 to 00 using 0 button then sw off TV. (Location 4D may need changing from 01 to 00) | 14-09-04 |
| Sharp | 37FT16FP | No sound | Change CF302 ceramic filter from 5.5Mhz to 6Mhz | 14-09-04 |