| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Crown | CRP21T | Int symbols showing when Micro & Xtal fitted with blank raster | Fit D483 in its posn between micro & tuner/IF (No diode previously fitted) | ||
| Crown | CRP21T | int dead | 2SC1573A line driver Q579 (may check ok) | ||
| Crown | CRP21T | Dead Q101 PSU Chopper s/c | R108 220k & R109 330k hi res | ||
| Crown | CRP21T | dead | R599 2k 5w - replace Q579 too | ||
| Crown | CRP21T | dead | Q101 BUZ77 FET chopper s/c, R101 5R6 5w o/c, R108 220k, R109 330k hi res. Also check chopper tfmr for leaky feedback windings + TDA4605 | ||
| Crown | CRP21 | Child lock removal | s/c pins 4 & 17 of R/C. Press 'clear' then 'pass'. S/C pins again twice. To clear press 'clear'. | ||
| Crown | CRP14T SM1 Mono | Stuck in standby. | R599 2k 5watt in PSU o/c , check Q579. | ||
| Crown | CRP14/21 | Dead R599 2k 5w o/c | Caused by line dr trfmr CROW602300033051 & replace line dr Tr | ||
| Crown | CRP14 Matsui 2096 | Child Lock removal | |||
| Crown | CR5014 | Dead - Chopper tr BUT11AF Q101 s/c | R121 3R3 ?w fusible o/c - D108 dry joints | ||
| Crown | CR3797R | Dead with squeal | C612 22µ 50v & C611 47µ 40v hi esr, 2SD5071 LOPTr leaky used 2SD1651 in lieu, line dr tr 2SC2330 s/c now would work except CRT is soft! Used 2nd hand crt to complete repair & replace C319 with 4n7 2kv to increase width | ||
| Crown | CPRP14 | Dead - Chopper FET 5N90 s/c | R101 5R6 5w surge lim o/c, TDA4605 IC101, R108 220k, R109 330k o/c | ||
| Crown | 2894 | Int field lin/bounce when heated | 12v at ZD402 low due to R435 0R68 risen in value | ||
| Crown | 2196 | Dead. | Check/Replace R108 220K Ohm & R109 330K Ohm. | ||
| Crown | 14CX25 | No colour | Q311 2SC65Y burst amp o/c |