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Modelo - Chassis KV27HSR10
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV27HSR10 | HORIZONTAL RGB, LINES IN PICTURE, CHECK R-517 | Three to four retrace lines are visible at the top of thescreen. They do not look like ordinary retrace lines, but are of solidred, blue, or green colors. | ||
| Sony | KV27HSR10 | Q-604 NOT IN S/M, SEE SB TVP0066 | Q-604 transistor is in the set but is not shown in theschematic/part list. It is shown only on service manual F PC boardlayout. -HQ COMMENTS: Service bulletin on this has been issued see TVP0066. | ||
| Sony | KV27HSR10 | HORIZONTAL LINES IN PICTURE, C-546 COLD SOLDERED ("A" BOARD) | Horizontal lines in picture sometimes on top sometimeson the bottom. Looks like retrace but in reality it is ringing. | ||
| Sony | KV27HSR10 | BLACK BAND AND RETRACE LINES, REPLACED IC-301 | Black band from top to bottom on the right-hand side of thescreen approximately four inches wide. Also, white retrace lines at thetop of the screen and red and blue lines in the middle of the screen.The black band was in the way so you could not read th | ||
| Sony | KV27HSR10 | COLD SOLDER CONNECTIONS ON T-501 | Unit dead, no horizontal drive pulse. | ||
| Sony | KV27HSR10 | NO PICTURE, TROUBLESHOOTING METHOD | As you may have noticed, when servicing this and other unitsusing this particular IC-301, RGB lines at the IC level are blanked any-time the C board is disconnected. The main reason for this blanking isa cathode current detect line (IK). When the unit | ||
| Sony | KV27HSR10 | UNIT DISPLAYED UNSYNCHRONIZED PICTURE AT TURN ON, D-505 | Unit displayed unsynchronized picture at turn on but after afew seconds, picture would lock up. | ||
| Sony | KV27HSR10 | NO COLOR IN TV MODE BUT OK USING VIDEO MODES, SEE TVP SB 39 | Unit displayed colors in Video Modes but not in the TV (tunermode). Chroma signal was present up to IC301 (Jungle Chip) in both modes. | ||
| Sony | KV27HSR10 | VERTICAL PROBLEMS, C-504 COLD SOLDERED ("A" BOARD) | I have now seen several models, ANU-1 chassis that exhibitwhat looks to be an odd type of retrace at the bottom of the screen.There may also be a few lines missing in the middle of the screen. It isunlike vertical problems I have seen in the past. The | ||
| Sony | KV27HSR10 | SEVERE PIN CUSHION, REPLACED Q-505 ("A" BOARD) | Severe pin cushion, both left and right sides. | ||
| Sony | KV27HSR10 | NO PICTURE SLEEP LIGHT ON,REPLACED C-500 | Set has high voltage. Sleep light is on, but set has nopicture. Found .7Vpp on pin 31 of IC-301 (should be 2 volts). ReplacedIC-500 and IC-301 still not working properly. Found shorted C-500. -HQ COMMENTS: When C-500 located on IC-500pin 1 shorts, | ||
| Sony | KV27HSR10 | MISSING P/N FOR SOUND PROCESSOR IN S/M, 8-741-159-30 | In schematic on (A) board, sound processor located at G-8 isnot marked at all. It is not found in the parts listing anywhere. -HQ COMMENTS: The part number is 8-741-159-30 which is mentioned inthe miscellaneous section of the parts list. This IC is lo | ||
| Sony | KV27HSR10 | CLOCK RUNS TOO FAST, SEE SERVICE BULLETIN 87R1 | The time clock advances 12 minutes every hour. This indicatesthe microprocessor IC-101 is set to 50Hz. -HQ COMMENTS: This problem is caused by 50/60Hz misdetection. Please refer to Service Bulletin number 87R1. Add .01uf50v cap betweenBase and Emitter | ||
| Sony | KV27HSR10 | SRS MALFUNCTION, REPLACE THE SRS MODULE SEE TVP SB # 45 | Hum above the volume level when in the S.R.S. mode, alsovolume levels changing. This problem does not show up all the time. -HQ COMMENTS: Please refer to Service Bulletin No.45.New SRS Module P/N 8-741-592-02Module Bracket P/N 4-393-435-05 New bracket | ||
| Sony | KV27HSR10 | BUZZING ON MTS, SEE SERVICE BULLETIN NUMBER 46R1 | Buzzing in sound due to harmonics. |