Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por:![]() |
---|---|---|---|---|---|
Sony | KV2602 | PICTURE DISTORTION, REPLACED C508 | At turn on full vertical sweep then gradual loss from top andbottom until after 5 minutes picture would be approx. half size. | ||
Sony | KV2601 | NO COLOR, REPLACED 3.58MHZ CRYSTAL | No color. | ||
Sony | KV2141R | SET LOCKS ON CH2, SHORTED Q2201 | Display says channel 2, no matter which channel selected,tuning OK. | ||
Sony | KV1948R | CH 14 WOULD NOT LOCK, ADJ T202 AND T203 | Ch. 14 would not lock up on a cable co. using the HRC cablesystem, all other channels operate properly. | ||
Sony | KV1947R | PICTURE DISTORTION, REPLACE IC501 | Total loss of vertical sync. | ||
Sony | KV1945RS | NO COLOR, REPLACED BPT, T301 | No color. | ||
Sony | KV1945RS | NO UHF Q008 SHORTED | Would not receive UHF channels. | ||
Sony | KV1945RS | INCORRECT TUNING, REPLACED X003 | No channel indicator (blank), no tuning of signal. Voltageson IC001 and IC002 were all wrong. Servicer had changed both chips andchecked the clock freq. of IC001 CL1 with a counter, 400kHz. When clockwas finally checked with a scope PP V was only 0.5V | ||
Sony | KV1923 | NO PICTURE, HAS SOUND, REPLACED C516 | No picture, just sound. | ||
Sony | KV1922 | PICTURE NOISE | Three inches wide bar at right side of screen top of bottomonly on HBO cable channel and only at customer's home only on thisparticular unit, other units tried and work fine. Servicer blamingcable co. Found 150pF capacitor between Q512 collector and gr | ||
Sony | KV1915 | PICTURE DISTORTION | One and half inches of top of picture is black. | ||
Sony | KV1912 | TUNER LOCKED ON CH 2 | Tuner locked on channel 2. | ||
Sony | KV1910 | PICTURE STRETCHING AFTER WARM UP | Picture stretches vertically after about one hour operation. | ||
Sony | KV1512 | DEAD | This unit initially appeared to have a shorted SG613 and2SC867. Upon powering up the set with a DC supply it was noticed thatthe waveforms were irregular. Closer examination revealed R522 hadchanged in value. | ||
Sony | KP7220 | KEYSTONE, REPLACED D5313, D5312, Q5537 | Keystone effect on all three tubes. Pix normal at top butnarrow at bottom. |