| Make | Model | Problem | Solution | Date |
| | | |
| Found: 36
|
| Saisho | CM145R | Dead - no ac to main pcb as relay no operating | Sw tr not driven as M491BB1 control chip u/s | 14-09-04 |
| Saisho | CM159TX | Dead - psu screams until LOP stage dis'd | HT high at 175v (125v). C818 1µ 50v, C806 1000µ 16v, C808 1000µ 25v | 14-09-04 |
| Saisho | CM159TX | TDA3562A replacement | Fit TDA3562A Philips version, Change R513 from 180k to 68k, Change R515 from 120k to 150k' Change R520 from 180k to 1M (only if no colour) | 14-09-04 |
| Saisho | CM16R | Dead - 2A fuse on side blown | C510 1µ 50v, also check STK7308 & D510 across 105v rail s/c | 14-09-04 |
| Saisho | CM2080T | Dead - HT only 33v | LOPTr Q402 2SD1555 leaky & replace STR50103A & R502/3 330k | 14-09-04 |
| Saisho | CM2080T | Field - only half a pic | C421 in volts boost cct | 14-09-04 |
| Saisho | CM2080T | Int field roll, full vol, into Txt etc at sw on | C462 1µ 160v | 14-09-04 |
| Saisho | CM20TT | St/by only | STK7308 u/s - also check R502/503 120k | 14-09-04 |
| Saisho | CM250R | Buzz on sound | After all attempts failed to cure, replacing tuner fixed it | 14-09-04 |
| Saisho | CM250R | Int losing sound/pic | TV/Video slide sw on back of set int | 14-09-04 |
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|
| Saisho | CM250R | No controls operate apart from Ch+/Ch- | st/by button on set jammed in | 14-09-04 |
| Saisho | CM250R | No sound/pic - Field collapse | No 12v at pin 2 TA7698 field chip; R408 o/c, D408 leaky | 14-09-04 |
| Saisho | CM250R | No sound/pic with field collapse | R428 1k2 in startr up cct overheating - D405 & R408 1R were faulty | 14-09-04 |
| Saisho | CM260T/T | Dead - Chopper tr BUT11A s/c | Replace C5 4µ7 63v, C7 220µ 25v, IC1 UC3844N, IC13 CNY75B opto | 14-09-04 |
| Saisho | CM260TT ZX5000 | Dead | Tr1 BU145A chopper tr s/c, 1.6A fuse o/c, IC13 TIL111 opto coupler - IC1 UC3844 replaced as a precaution | 14-09-04 |
| Saisho | CM2880 | poor grey scale | CRT low emission | 14-09-04 |
| Saisho | CM2880TX | Field collapse | R515 3R3 2w in psu & UPC1498H field o/p chip | 14-09-04 |
| Saisho | CT1400 | Dead | R501 3R9 5w o/c; IC501 2SC3156 s/c - used BU326A in lieu | 14-09-04 |
| Saisho | CT1400 | Dead | Chopper tr 2SC3156 s/c - used BU326 in lieu; D508 s/c - used R2M; R501 3R9 5w o/c; dry joints between main pcb & chopper tr pcb - also replace C508 4µ7 50v 105deg | 14-09-04 |
| Saisho | CT1400 | Low sound | R356 10k 1/2w o/c | 14-09-04 |
| Saisho | CT1400 | Sound low | R356 10k o/c | 14-09-04 |
| Saisho | CT141X | Low sound | C303 100pf across if coil leaky | 14-09-04 |
| Saisho | CT141X | Sync missing | R507 1R o/c | 14-09-04 |
| Saisho | CT144R | Int noise bars on pic with sound crackle | Dry joints chassis bonding at regs heatsink | 14-09-04 |
| Saisho | CT144R | No red | replace 3 x caps 0µ4 connected to pins 44. 45 & 46 of TA8659AN chip | 14-09-04 |
| Saisho | CT147R | Chan stores on all chans together | 32v tuning supply high at 38v, IC102 µPC574J faulty | 14-09-04 |
| Saisho | CT149TX | Dead with buzz from spkr | LOPTr leaky - check for dry joints line dr trfmr | 14-09-04 |
| Saisho | CT149TXA | Dead after psu rebuild | C506 100µ 160v HT smoothing cap o/c | 14-09-04 |
| Saisho | CT149TXA | Int start up | R414 15k hi res | 14-09-04 |
| Saisho | CT14R | No signals | No 12v supply to tuner as print has been eaten away on back of pcb by glue | 14-09-04 |