Dicas Reparação
Modelo - Chassis 21
Pesquisa: 21 Enviar Dica Resolvida
Resultados 8325
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2145R | NO VHF, BT981 PRESCALER | No VHF low and high band, very intermittent. | ||
| Sony | KV1221R | SNOW PICTURE, REPLACED C038 | Every 2 weeks picture would go to snow and remain in onechannel position. Tuning functions totally inoperative and manual channelselection would not work. Volume up and down functions OK. Clock osc.waveform wrong also voltage at Q034 base 0V should be | ||
| Sony | KV1217 | INCORRECT TUNING OPERATION, REPLACED R078 | In program mode, pressing tune-up button would cause a changein address position only and could not program any channels. Also, nochannels could be put into or removed from memory. | ||
| Sony | KV1221R | PICTURE DISTORTION, REPLACED C524 | Picture pulled up 3 inches on bottom of the screen and upperright hand corner blanked. Found C524 off Pin 13 IC301 was installed withpolarity reversed. | ||
| Sony | KV2101 | POOR V LINEARITY, R517 INCREASED IN VALUE | Poor vertical linearity top 1/3 of picture slightlycompressed. Vertical size control to end of range. Waveform at base ofQ501, blanking pulse 5 msec, it should be 1.2 msec. | ||
| Sony | TCM121 | MECHANICAL MODIFICATION | When customer presses record button with no tape inserted,pressure of record lever assy. against chassis causes the lever retainingportion to break off. Since the retainer is part of the chassis assembly,the entire assy would have to be replaced. | ||
| Sony | TCM121 | LOCK PLATE SHAFT NEEDED LUBRICATION | Auto stop was working intermittently. | ||
| Sony | STR212 | DEFECTIVE IC20, 301, Q301, 302 | No AM or FM - IC201 voltages incorrect, Q301 collector read 11volts. Replacement of individual IC, would knock the other chip out. | ||
| Sony | PS212 | LEAKY Q3 | Turntable speed is too fast. | ||
| Sony | HP219A | BOARDS HAVE CHANGED | Manual lists the part number as K-006-048-10, part beingreceived is K-0660-481-0. -HQ COMMENTS: The servo amplifier and DC motor set has been changed andthe former set is no longer available. The part number of the set(K-066-048-10) remains the same. | ||
| Sony | TCM121 | BRACKET ASSY OUT OF LOCATION | This unit would eat tape because take up reel would not turn.The bracket assy was allowed to travel backwards (pulling against thespring) until it went past the plastic guide on the chassis assy. Onceit went past the guide, it could not come back forwar | ||
| Sony | TCM121 | BRACKET NEEDS BENDING | No take-up in fwd play mode. The latch on the idler bracketsometimes doesn't go over the stub on the chassis but goes to the sideof it and jams there. | ||
| Sony | TCM121 | DEFECTIVE IC'S 4140, UPB4011 | No playback and no record. | ||
| Sony | ICFC21W | FRAGILE CONNECTOR | The connector used to wire the main board to the functionboard is too short and fragile. During repairing, any pressure appliedcan cause it to short or keep the radio on. It is also difficult tostrip and solder. | ||
| Sony | TCM121 | BELT JUMPS OFF MOTOR | Belt jumps off motor pulley due to lubricant getting on belt. |