Dicas Reparação
Modelo - Chassis SLHF400
Pesquisa: SLHF400 Enviar Dica Resolvida
Resultados 18
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | SLHF400 | INTERMITTENT REWIND: REMOVE GLUE UNDER IC001 SS-32 BOARD | Intermittently when the Rewind button was pushed the unitwould Fast Forward. The problem was caused by glue underneath the SystemControl CPU/IC-001. This was altering the DC voltage at pin 15/key input. | ||
| Sony | SLHF400 | LOSS OF HORIZONTAL HOLD IN REV/CUE AND PAUSE | We have seen several units that have poor horizontal in REV,CUE and PAUSE. | ||
| Sony | SLHF400 | UNIT INTERMITTENTLY THREADS | The cassette intermittently would not seat all the way downduring loading. This of course did not permit the unit to thread. Wefound the guide plate #230 to be improperly position (see illustration)therefore the cassette would sometimes hang up on it. | ||
| Sony | SLHF400 | NO POWER OR PICTURE ROLLS DURING PLAYBACK | Will not power up or pix rolls while playing a tape. | ||
| Sony | SLHF400 | SNOWY PICTURE IN BETASCAN WHEN WARM (APPROX. 1 HR OF USE) | After running the unit for approx. 1 hr, when CUE or REVIEWis used picture is extremely snowy. Unit was very temperature sensitive. | ||
| Sony | SLHF400 | NO PIX ONLY NOISE IN SCAN | After warm up in the scan mode picture breaks up. Playbackfine. | ||
| Sony | SLHF400 | INTERMITTENT REMOTE OPERATION | Remote would quit working intermittently. Found unswitched5V line noisy. C004 had both leads barely connected. | ||
| Sony | SLHF400 | NOISE IN PICTURE, LOOKS LIKE DROPOUTS | In playback, three glitches appear on the screen, one near thetop, one midscreen and one close to the bottom. They look like dropouts,but they could be affected by slowing down the drum. | ||
| Sony | SLHF400 | FU-38 CIRCUIT BOARD PART NUMBER SUPPLEMENT 1 | P/N A-6717-395-B in Supp #1 subs to A-6717-395-A which is theFU-38 board for the SL-HF600. The SL-HF600 has some additional partsmounted on it and one interconnecting wire that should connect to CN305on the TM-82 circuit board, but will not because of t | ||
| Sony | SLHF400 | AUDIO NOISE IN BETA HIFI | Checked S/N at 400Hz, was -68dB. Checked distortion at 400Hz,1kHz, 5kHz and 10kHz all read less than 2 1/2%. But a buzzing noise isheard also sounds like pumping. Buzz can be heard on movie Blue Thunderwhen he sets his watch. Also noticed buzzing on | ||
| Sony | SLHF400 | NO AUDIO | No sound. | ||
| Sony | SLHF400 | SERVICE MANUAL CORRECTION (IC501, VI-11 BOARD) | Schematic has an error. On Pins 39 and 41 IC501, DC voltageis 2.4 for play and 2.3 for Beta scan. The voltage measured at thesepins are 7.5 for play and 7.3 for Beta scan. I have verified this on twounits. In troubleshooting a Beta scan problem we sp | ||
| Sony | SLHF400 | NO PICTURE IN BETA SCAN OR PAUSE | No picture when in Beta scan or pause. Screen showed blackhori bars and what looked like over driven AGC. Adjusted skew osc to 2xhori. Picture came in on Beta scan and pause. After a few min picturewould go bad again and had to be readjusted. | ||
| Sony | SLHF400 | INT. NOISY TUNER VC | The tuner would intermittently loose the channel and producenoise on the screen. Scoping the VC line we found it to be changingrapidly. This was caused by IC1/SS-32. | ||
| Sony | SLHF400 | CO-CHANNEL INTERFERENCE ON UHF CH. 21 FROM CH. 27 | Local UHF channels are ch. 21 and ch. 27. Co-channel appearsworse while viewing lower channel from the higher channel |