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Modelo - Chassis 21
Pesquisa: 21 Enviar Dica Resolvida
Resultados 8326
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2142R | SNOWY PICTURE, REPLACE D2214, Q2224, Q2220 & UHF TUNER | Snowy picture on all channels except Ch. 2. The reason youwould get a clear picture on Ch. 2 is due to the low voltage used onCh. 2 coming through the UHF tuner. | ||
| Sony | FD210 | NO PICTURE, RESOLDERED C653 | This unit had no picture and received FM stations instead ofTV freq. A quick examination of the power supply revealed that the 14Vand 40V (tuning) lines were very low (6V). We found the connection onC653 to be poor. This is the coupling capacitor betw | ||
| Sony | KV2145R | SHUT DOWN, REPLACED HVR | This unit had a shut down condition which occurred everycouple of hours. We found the HVR ass'y to be defective. It was crackedat the base. | ||
| Sony | KV2145R | RETRACE LINES ON THE SCREEN, REPLACE IC502 | Set had 6 or 7 retrace lines at top of the screen. I foundthat by cooling IC502 the lines disappeared. | ||
| Sony | KV2145R | INTERMITTENT CHANNEL CHANGE BY ITSELF, Q007 | Intermittently self initiates rapid channel changing. | ||
| Sony | KV2145R | DEAD, FUSE & DAMPER DIODE | Unit came in with blown DC fuse and a shorted damper diodemounted on the conductor side of board, cathode connected to cathode ofD501 and anode to ground. This is a production mod. and no informationexists as to its type or part number. As it resembles | ||
| Sony | FD210 | SHIFTED PICTURE, REPLACED YOKE | Picture shifted up and slightly to the left. | ||
| Sony | KV2145R | NO PICTURE, RESOLDER C534 | Set would blow the horiz. output, at low voltage. I noticedH. frequency doubled. Found C534 not grounded. | ||
| Sony | KV1221R | SHUT DOWN, REPLACED R001 | After warm-up (or after simply plugging in and not turningon for 1/2 hour or so), the unit could not be powered up. If unit ison, it will then not turn off. Remote or manual same. IC001 was bad andthe relay drive transistor as originally suspected. | ||
| Sony | KV1215 | DEAD, REPLACED L309 | While I was servicing the unit using an external DC powersupply, I noticed the absence of audio. Inspection revealed no 18Vbeing supplied to the SC board. Resistance of 18V line to groundmeasured about 1K ohms, should be about 180 ohms. I then found L | ||
| Sony | KV2145R | SHUT DOWN, LEAKY Q881 | Set would shut off once or twice a week. Problem wasisolated to Hi-voltage shut down CRT. Found Q881 leaky. With a newtransistor shut down voltage increased by 112V, changed dividerresistor for correct voltage. | ||
| Sony | KV1217 | SHUT DOWN, CLEANED AND ADJUSTED HOR. FREQ. CONTROL | Set going into HV shut down intermittently when turned on.Set would also horizontal freq. adjustment was on very edge of locking. | ||
| Sony | KV2141R | SET LOCKS ON CH2, SHORTED Q2201 | Display says channel 2, no matter which channel selected,tuning OK. | ||
| Sony | KV1221R | NO REMOTE CONTROL FUNCTION, REPLACED C007 | There were no remote control functions. The volume up/downfunctions would shut set on and off. Manual input of IC (remote control)Pin 1 always had a noise pulse and frequency at this point was incorrect.This noise pulse inhibited any input data from re | ||
| Sony | KV2145R | SET LOCKS ON CH 88, REPLACED CH INDICATOR ND3101 | Set was locked onto channel 88, unable to clear or change.Found pulse out of IC001 on MF board loaded down. Traced problem tochannel indicator display ND3101 on TA board. Pin 3 on display isshorting to something inside display loading down Pin 40 on IC |