Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por:![]() |
---|---|---|---|---|---|
Sony | BE-4A KV21T3U | volume goes to max, no remote or front control functions | Micro gets hot, replace Micro part no 875947506 | ||
Sony | BE-4A KV21T3U | no pic (blank video) | D722 (871999133) o/c on CRT | ||
Sony | BE-4A KV21T3U | blank raster with flyback lines | A1 voltage too high, replace LOPTx | ||
Sony | BE4A Chassis | Frame collapse. Replaced frame output chip, but picture geometry was not OK. The voltage at pin 8 of MC44007P chip measured low. | If picture Geometry after replacing Vertical outp. Chip is not in order, replace also MC44007P. (Replaced also STR-S5706 in case an overvoltage caused the fault) | ||
Sony | BE4A Chassis | Frame collapse. Replaced frame output chip, but picture geometry was not OK. The voltage at pin 8 of MC44007P chip measured low. | If picture Geometry after replacing Vertical outp. Chip is not in order, replace also MC44007P. (Replaced also STR-S5706 in case an overvoltage caused the fault) | ||
Sony | BE4A | Field collapse with visible line | STV9379 fop IC & 24v fusible next to loptx | ||
Sony | BE4A | Dead - st/by LED flashes 4 times (No lop) | No line drive from IC301 MC44007P - chip u/s | ||
Sony | BE4A | Dead - CP602 on sec psu o/c | Replacement cures fault only temp - CP602 to N75 (2.5A); Add 5v6 zener between pins 1 & 9 IC803, add 5v6 zener between pins 9 & chassis on print side of pcb | ||
Sony | BE4A | Dead - 6 blinks from led | Overvolts or current indicated - check HT (118v) - use dummy load; C608 10µ, C620 100µ 160v, STRS5706 poss & loptx | ||
Sony | BE4/4A | Tripping with 6 flashes from LED & rush of EHT | LOPTx - EHT sect faulty | ||
Sony | BE4 KVM2171U | Dead after half an hour | STRS5706 IC601 | ||
Sony | BE4 KV21T3U | Int dead | R607 0R56 2 watts had risen in value to nearly 2 ohms | ||
Sony | BE4 KV21M3U | Field collapse | R814 0R47 in 24v supply o/c - use proper improved Sony type | ||
Sony | BE-4 KV16WT1U | frame collapse (no picture) | R814 0.46R 0.5W (121781111) o/c, IC501 TDA9302, C504 100uF 50V, also replace D501 RGP10GP (871930243) or may fail again | ||
Sony | BE-4 KV16WT1U | frame collapse | DJ L807 wire link to LOPTx earth |