Sony
KV2670R
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Sony
KV2670R
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Complaint
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Fix
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| AUDIO BUZZING ON ALL CHANNELS SOMETIMES LOUDER ON CERTAIN CHANNELS | RESOLDER LEADS ON R211 |
| AUDIO DISTORTED | REPLACE T202 (PN: 1-404-467-00) SOUND I.F. TRANSFORMER |
| BRIGHTNESS LOW BRIGHTNESS CONTROL HAS NO EFFECT | REPLACE OPEN R526 (PN: 121314600) & D508 SHORTED (V-11N DIODE) G2 RECTIFER OR D301 ABL CLAMP DIODE (PN: 871991119) |
| DARK PICTURE COLOR ONLY (NO Y SIGNAL) | REPLACE C527 SHORTED & R526 BURNT |
| DEAD (FUSE NOT BLOWN) | REPLACE Q504 SHORTED HORIZONTAL OUTPUT TRANSISTOR & R608 220 OHM 20W RESISTOR OPEN & MAY HAVE SHORTED CRT |
| DEAD (RELAY CLICKS ON) | REPLACED SHORTED Q504 HORIZONTAL OUTPUT TRANSISTOR AFTER REPLACING FUSE F602 1.6A BLOWS CHECK FOR SHORTED REGULATOR IC601 STR3035 PIN 1 & 4 SHORTED 135V LINE GOES UP TO 146V |
| DEAD (RELAY WON'T CLICK) | REPLACED RELAY WINDING WAS OPEN |
| INTERMITTENLTY WORKS AFTER 1 HOUR WITH REMOTE BUT SOME CHANNELS SNOWY & WON'T TURN OFF | REPLACE IC105 |
| INTERMITTENT COLOR OR NO COLOR SYNC | REPLACE L506 (PN: 140769300) |
| INTERMITTENT VERTICAL SWEEP | REPAIR SOLDER CONNECTION ON R538 |
| NO AUDIO OR BRIGHTNESS WON'T TURN OFF HAS HIGH VOLTAGE | REPLACE X101 (PN: 156725411) CERMIC OSCILLATOR LOCATED ON "A" BOARD |
| NO PICTURE OR AUDIO SLEEP LIGHT ON | REPLACE SHORTED D102 (PN: 8-719-931-05) LOCATED ON "A" BOARD |
| PICTURE FLASHES & AUDIO MUTES FOR SEVERAL SECONDS WHEN CHANNELS CHANGED | REPLACE JUNGLE IC301 CX20193 (PN: 875201930) LOCATED ON "A" BOARD (NOTE: NO HORIZONTAL SYNC PULSE FROM PIN 3 OF IC301) |
| PICTURE GOES LITE & DARK | REPLACE Q204 2SD880 (PN: 8-729-288-02) D203 (PN: 8-179-102-88) D209 (PN: 8-719-911-19) (NOTE: 9V LINES VARYS REPLACE COMPONENTS EVEN IF THEY CHECK OK) ALL LOCATED REAR OF CHASSIS TO LEFT OF T251 |
| PICTURE HAS BEAT IN PATTERN OR DARK LOOSES TUNER & AUDIO DISTORTED | REPAIR SOLDER CONNECTIONS ON Q204 |
| PICTURE WASHED OUT OR POOR CONTRAST COLOR HUE PURPLISH | REPLACE Q303 (PN: 2SC2785) |
| SHUTSDOWN (AFTER ON FOR AWHILE & 130V SUPPLY WON'T REGULATE) | REPLACE C540 33MFD X 160VDC (PN: 1-123-0240-00) LOCATED OFF T501 ON B+ LINE |
| SNOW OR INTERMITTENT PICTURE & SOUND HAS HIGH VOLTAGE | RESOLDER FREQUENCY SYNTHESIER PPU1 (PN: 146347131) LOCATED ON "A" BOARD |
| TUNER INTERMITTENTLY DRIFTS OFF | REPLACE LEAKY C202 .0022MFD WAS READING 40K OHM LOCATED ON "A" BOARD OFF PIN 7 OF IC201 |
| VERTICAL RETRACE LINES ON TOP OF SCREEN | REPLACED C520 & C542 BOTH 47MFD X 35V LOCATED NEAR VERTICAL IC501 ON "A" BOARD |
| VERTICAL SHORT TOP & BOTTOM | REPLACE IC301 (PN: 875201930) JUNGLE IC CONTAINS VERTICAL OSCILLATOR & DRIVER LOCATED ON "A" BOARD |
| WON'T ERASE OR ADD A CHANNEL ALL CHANNELS HAVE TO BE SEQUENCED THRU IN NUMERICAL ORDER | REPLACE OPEN L105 39UH COIL (NOTE: FOUND NO -24V OR -10V ON PINS 6 & 7 OF IC105 (MEMORY) ONLY WHEN SET ON THE -33V SUPPLY SOURCE WAS PRESENT WHEN SET OFF) |
| WON'T MANUALLY SHUT OFF CAN SOMETIMES TURN ON MANUALLY & MAY WORK WITH REMOTE "AUX MAY BE DISPLAYED ON SCREEN | REPLACE MEMORY IC105 UPD6250C (PN: 8-759-102-12) |
| WON'T SHUT OFF | REPLACE IC103 LOCATED ON "A" BOARD |
| VERY INTERMITTENT PURITY PROBLEM | RESOLDER BAD CONNECTION OFF THP601 |
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