Make | Model | Problem | Solution | Date |
| | | |
Found: 11
|
SHARP | 51DT-25H | FRAME COLLAPSE WITH NO SOUND | CHECK Q500 BC328 | 14-09-04 |
Sharp | 51DT-25H | Lack of height, no vid & tuning drift at sw on | NV memory mode - fit 2 x zeners D510/511 pt no EX0404BM22, fit coil Pt no VP-CF120K0000 in place of link J122 & fit another zener D403 pt no RH-EX0412BMZZ. (Cct ref printed on pcb) | 14-09-04 |
Sharp | 51DT-25H | Lines across screen when cold | C604 220u 10v | 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 | 51DT25H | Dead - no st/by | R705 560k o/c, also replaced R704 560k | 14-09-04 |
Sharp | 51DT25H | Going off tune picture blanks etc | C715 470mfd 10v o/c | 14-09-04 |
Sharp | 51DT25H | int blank raster, lack of height, off tune | Fit D511 & 512 3v6 zeners in marked places next to IC201, fit D403 by plug K - replace link 122 in 5v supply with 12µ coil. | 14-09-04 |
Sharp | 51DT25H | Int lack of height or off tune when 1st sw on - ok at subsequent sw on | Sharp mod - add 3.6v zener between pin 63 IC201(cathode) & chassis; add another 3v6 zener pin 64 & chassis(cath to chip). Substitute link J122 with 12uH coil pt no VP-CF120K0000; Add 7v5 zener pin 30 (cath) & chassis. Check CRT final anode for cleanliness | 14-09-04 |
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 |