Dicas Reparação
Modelo - Chassis KV25XBR
Pesquisa: KV25XBR Enviar Dica Resolvida
Resultados 95
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV25XBR | NO SOUND, REPLACED FUSE WRONG SPEAKER IMPEDANCE USED | No sound, found F651 open. | ||
| Sony | KV25XBR | LOCK-UP | Set will not come on or may come on but no other functionworks. Checked the reset pulse at Pin 3 of IC103 and found it low alltimes. Unsoldered Pin 3 and voltage went up to 5V. Resoldered Pin 3 andset began to work. Pin 3 now goes to low momentarily | ||
| Sony | KV25XBR | MISSING PART # | Please obtain part number for chassis plastic frame andshield sections. -HQ COMMENTS: The part numbers you need are as follows:AC Supply Case (Main) 4-374-138-02AC Supply Case (Top) 4-374-133-01AC Supply Case (Bottom) 4-374-134 | ||
| Sony | KV25XBR | NO SOUND, REPLACED IC103 | No sound when in the TV mode, found no switching (high, low)on IC103, Pins 36 and 37. | ||
| Sony | KV25XBR | NO RASTER - LOCKED IN SLEEP MODE AND RGB MODE | No raster, set locked in sleep mode and RGB mode. | ||
| Sony | KV25XBR | SCHEMATIC ERROR - SOUND | In troubleshooting a KV-25XBR, I found a problem with theschematic. On the X board, IC1107, Pin 8 goes to R1208 and then to12 volts. Pin 8 goes to the wipers of the switch inside the chip. Theway the schematic is drawn, there is no way to switch from | ||
| Sony | KV25XBR | DEAD SET | The red wires coming from DY1 and DY2 were broken at the yoketerminal and shorting to the chassis. This blew the fuse and shorted thehoriz output transistor. It appeared as if the wires were twisted off.There was no other damage to the yoke. | ||
| Sony | KV25XBR | DAMAGED BOARD | Three out of eight units we received at The Consumer CTRin Tampa have cracked X boards along the edge near Q1111. No damageto the cartons. -HQ COMMENTS: The cause seems to be flexible cabinet/chassis ofKV-25XBR. | ||
| Sony | KV25XBR | LOW BRIGHTNESS | Three units. When using PC701 to interface KV-25XBR to anIBM PC, user has washed out picture with low brightness. He claims thishappens with all the PC701s and XBRs he has tried. -HQ COMMENTS: PC701 reduced somehow overall brightness of whatevermonito | ||
| Sony | KV25XBR | MISSING PART # | We need the bezel assy for KV-25XBR in black which usesa slightly darker bezel than the one for beige or plum.Is there a different part? -HQ COMMENTS: KV-25XBR is marketed in only one bezel gray shade version.But in practice it may vary within the produ | ||
| Sony | KV25XBR | RGB GOES ON BY ITSELF | RGB will turn on at sound vibration or by opening/closing ofcontrol panel. The unit sensitive to vibration has its RGB buttontouching the switch and just slight vibration will turn it down. | ||
| Sony | KV25XBR | NO DISPLAY | Two problems: 1) volume changes activate RGB mode. Found RGBbutton jammed closed. 2) no channel/function display. Found L101 on theA board to be open. There is 5V active low info. present at IC104/P12. | ||
| Sony | KV25XBR | DISTORTED RIGHT CHANNEL AUDIO, REPLACED IC1108 | Distorted audio, right channel only. | ||
| Sony | KV25XBR | DEAD | Unit was dead. No functions. Traced problem to shortedD1657 (pin damper diode). | ||
| Sony | KV25XBR | NO SOUND | No audio output. Traced problem to IC1107 on the X board.This is the second report I know of this problem. |