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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CDXA55RF | EXCESSIVE SKIPPING (BROKEN SPRING, REFERENCE #7) | Complaint is excessive skipping. The chassis was rattlingloose inside case. Found spring broken on optic side of chassis and bothdampers ruptured. | ||
| Sony | SLV575HF | POPPING NOISE AFTER HEAT UP: REPLACE IC-007 HF-9 BOARD | After the unit heats up, there is popping noise in the audio.If the playing tape has mono audio, the video disappears completely. | ||
| Sony | SLV585HF | VERTICAL BAR DISTORTION: REPLACE THE FULL ERASE HEAD | Vertical bar distortion on the video picture. | ||
| Sony | XR5450 | NO AUDIO FROM TAPE (R-414 ON EQ BOARD OPEN) | No audio from tape, but radio portion had audio. Found B+not present at pin 8 on IC-401, however, B+ was present at pin 7 ofCNP-102. Found R-414 10 OHM resister open. | ||
| Sony | TCC5 | DOOR WILL NOT STAY CLOSED - REF 103 OUT OF POSITION | When you close the door, it will only close to the firstposition, the position where you can skip tapes with door closed. Afterfive seconds, the door reopens. | ||
| Sony | EVS550 | REMOTE PROGRAM SET FEATURE INOPERABLE: CHECK TV/CATV SETTING | All functions worked from the remote except the program setfeature. When trying to use this function, the unit would emit threeshort beeps. | ||
| Sony | KPR46XBR15 | HORIZONTAL TEARING, REPLACED C-366 ("E1" BOARD) | The picture was tearing horizontally. This would change withpicture brightness. The problem was worse when the unit was cold. Theproblem was traced to C-366 on the E-1 board. This is a couplingcapacitor in the sync separator circuit. It had reduced | ||
| Sony | KPR46XBR15 | GREEN IS SEVERELY PINCUSHIONED,REPAIRED YOKE WINDING | The green was severely pincushioned. The problem was an openprimary vertical winding in the green deflection yoke. The open occurredat the splice underneath the plastic housing. Although the wires were notphysically separated or broken there was not e | ||
| Sony | KV27HSR10 | WHITE STREAKS IN VIDEO, REPLACED C302 ("A" BOARD) | We have received some reports of white streaks in the videowhich will vary with the signal level. The problem is caused by C-302opening up. C-302 couples the video into the jungle IC. | ||
| Sony | SLHF400 | INTERMITTENT REWIND: REMOVE GLUE UNDER IC001 SS-32 BOARD | Intermittently when the Rewind button was pushed the unitwould Fast Forward. The problem was caused by glue underneath the SystemControl CPU/IC-001. This was altering the DC voltage at pin 15/key input. | ||
| Sony | MZ2P | LOADING/UNLOADING DIFFICULTY, LOADING MOTOR M-703 DEFECTIVE | Disc was stuck inside unit. Once it was removed, the discwould load but it loaded a bit slow. | ||
| Sony | CCDSP7 | PLAYBACK VIDEO IS DARK AND NO CHROMA/Q-397, VA-40 | Used block diagram on page 41. Checked signals on IC-360(CXA1200BX video process). IC-360 pin 20 demod out ok. Return to pin 23to low signal level and use schematic. Q-396 was not amplifying. Emitterwas 2.1V (spec 3.4V). Base was 0.565V (spec approxi | ||
| Sony | SPP115 | MUTED AUDIO (IN AND OUT) IN HANDSET - X-502 BAD IN BASE. | Unit's handset locks up with the base but audio was muted(both receive and transmit). Tested handset on the BK analyzer and Iverified it was good. Going to the base, traced audio back to the telline duplexer IC. I measured the pins around the IC and a | ||
| Sony | SPP80 | NO DIAL TONE - CRYSTAL X-503 REPLACED (P/N 1-567-994-11) | No dial tone. | ||
| Sony | KV32TS20 | NO PICTURE/SOUND, REPLACED R-648 | The set will not turn on. This is due to R-648 opening up.R-648 is located off of T-605/pin 4, in the standby supply. When itopens the standby, 5V is not present. Replacement resolves the problem.Note: We have received several reports of this failure. |