Dicas Reparação
Modelo - Chassis XR740
Pesquisa: XR740 Enviar Dica Resolvida
Resultados 14
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | XR7400 | PART NUMBER FOR CABLE | Customer has CDX45 Unilink type, and XR7400 none Unilink.Wants to connect two units, has a converter XA18 but needs 13 pins doublemale type cable for connecting two units. Please give us part number.Y Suto 810-347-3370 Fax 810-344-4899. -HQ COMMENTS | ||
| Sony | XR7400 | PREVIOUS VOLUME LEVEL NOT REMEMBERED WHEN UNIT IS REMOVED | Customer complained of intermittent change in volume levelwhen moving unit between his car and motorcycle. Dealer exchanged unit &new one was the same. Our SSC exchanged unit & new one was the same. | ||
| Sony | XR740 | CIRCUIT MODIFICATION NOT PUBLISHED AS S/B,NOT SENT WITH PART | IC-701 (new Part Number 8-759-207-77) is shipped without thecircuit change information. There is no Service Bulletin with this infor-mation. To summarize, when IC-701 is changed, R-719 should be changed to47k OHM (1-249-437-11). If a timing board is a | ||
| Sony | XR740 | UNIT WOULD LOCK UP WHEN SEEK BUTTON WAS PRESSED | System control lock out would occur when seek button wasdepressed, otherwise all function buttons worked OK. By shutting unit offand then back on, it would work again until seek button was pressed.This symptom was noted on another unit (XR-787R) in the | ||
| Sony | XR740 | NO DISPLAY | Unit had no display, no scan down, no #6 position. | ||
| Sony | XR740 | NO AUDIO OR MOTOR OPERATION | No audio or tape operation but AM and FM appeared to function.Found Q302, Q304, Q402, Q404, Q501 and Q601 muting. This was due to IC701Pin 19 in mute state (2.5V). When checking B+ to IC701, it was only 2.5V.Found Q702 collector to be 0V. This is the | ||
| Sony | XR740 | EJECT MALFUNCTION | I have received six or so XR740/780compartment. On none of them could I find a defect. After unjamming tapeand resetting the mechanism, all functions are okay. It seems that thewhite cam gear (#383) hangs up while moving the power plate assy (#371)for | ||
| Sony | XR740 | WRONG LABELLING OF HEAD PC BOARD SWITCHES | On page 41 of S/M for XR-740, 747R, 780 and 787R, thehead PC board switches are labelled incorrectly. Your recent S/B #62 hasthem labelled incorrectly. The parts listing on page 41 also has themincorrectly. S701 is on page 41 of the manuals, but you h | ||
| Sony | XR740 | CONTINUOUS AUTO REVERSE | Unit would auto reverse continuously. | ||
| Sony | XR740 | MISSING P/N | Part number and ref number missing: XR-740/747R/780/787R. -HQ COMMENTS: Item 429 should read reel retainer. Item 431 should readreel assembly. We will issue S/B. | ||
| Sony | XR740 | BROKEN HEAD WIRES | Broken head wires. When the head wire clamp is closed, it issqueezed to the point where the wire is cut inside the insulation. | ||
| Sony | XR740 | MISSING P/N | No part number or Ref. # in service manual or IRP. -HQ COMMENTS: The two photo-couplers are mounted on the SW PWB asslisted in the S/M (Ref. #913 P/N 3-596-542-01). Will check with Tokyofor separate supplies of the devices. | ||
| Sony | XR740 | INTERMITTENT MUTING | When installed in 1985 Toyota and 1986 Honda and the A/C isturned on, unit will mute no matter what mode it is in. I have suggestedputting in a larger inductor and a cap but it made no differenceaccording to the customer. -HQ COMMENTS: I have heard fro | ||
| Sony | XR740 | CAR STEREO WOULD BLINK ON/OFF | Dealer was trying to install unit in Mercedes with factorypower antenna. When unit was powered up, car antenna would extend to fulllimit, then car stereo would blink on and off and thumping sound could beheard through speakers. |