Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por:![]() |
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Sony | CDP255 | HOW TO POWER | Sears called to inquire how to test unit without main unit.As more of these systems are sold, I feel we should make a suggestion foran AC power supply to test these units individually. Also we must placevoltages required on schematic. -HQ COMMENTS: I a | ||
Sony | XM120 | SCREW GROUND | Protects after short warm-up (45 to 60 seconds). IC501 tripsRY501 when its pin 5 rises to -1.6V. | ||
Sony | WMF100II | NO PART NUMBER FOR FLEXIBLE BOARD | Unit has a small tear in head flexible board near lower cornerof head. Cannot find part number in service manual. It is shown on page34 in drawing but has no reference number assigned to it. -HQ COMMENTS: This flexible board includes HP101 magnetic he | ||
Sony | STRAV650 | UNIT DEAD | Unit dead, could not power up. Found no data on clock line toIC302 due to leaky 6800PF capacitor (factory installed) on clock line toIC302 on display board. | ||
Sony | XR900 | NO P/N FOR FLEX CONNECTOR FROM INDICATOR UNIT BOARD | Servicer needs to know how to get the flex connector that goesfrom the indicator unit to main board. | ||
Sony | CDPC57 | SAME SERVICE MANUAL | These three models have the same service manual: CDP-C57, C5Fand C5S. There are differences in the electronics. Do you have anythingthat shows the differences? -HQ COMMENTS: All of the differences are shown on the PCB layouts onpages 17 to 20. The di | ||
Sony | CDPC5S | SAME SERVICE MANUAL | These three models have the same service manual: CDP-C5S, C5Fand C57. There are differences in the electronics. Do you have anythingthat shows the differences? -HQ COMMENTS: All of the differences are shown on the PCB layouts onpages 17 to 20. The di | ||
Sony | CDPC5F | SAME SERVICE MANUAL | These three models have the same service manual: CDP-C5F, C5Sand C57. There are differences in the electronics. Do you have anythingthat shows the differences? -HQ COMMENTS: All of the differences are shown on the PCB layouts onpages 17 to 20. The di | ||
Sony | CDP21 | RF PLL ADJUSTMENT PROCEDURE STEPS 1 AND 2 ARE INCORRECT | RF PLL adjustment procedure steps 1 and 2 are incorrectlystated. | ||
Sony | CFS212 | TAPE STICKS AND WILL NOT EJECT | Tape shell is catching on head and pinch roller upon eject.As best I can tell, the head plate is fully retracting, although stickingis sometimes noticed. Either way, tape gets stuck. Please advise.Several units all have same problem. Also S/N 21155. | ||
Sony | CFS920 | MISSING MOISTURE SEAL AROUND CASSETTE DOOR AND BATTERY DOOR | A dealer complained that the new shipment of CFS-920s weremissing the (o) ring gaskets on the cassette door and battery door. Thedealer showed me an earlier S/N (31888) with the seals installed. Hasthere been a change in this model? These serial numbe | ||
Sony | WMF80 | PART NUMBER FOR FLEX CONNECTOR | I have been faxed a S/B No. 230 which gives a P/N for CN302.But, as I have described before, I require the P/N for the flex connectorbetween the EQ unit and the main PCB. These connectors keep tearing dueto their faulty design. It is very expensive to | ||
Sony | STRAV760 | MEMORY LOSS IF MAIN POWER SWITCH TURNED OFF | Unit would lose memory if main power switch was turned OFF.We found no DC voltage to pin 32 IC-207 at this time. It appears that asolder jumper has been left off during production. This jumper connectsthe battery to R-288, thereby, supply power to IC-2 | ||
Sony | TCW233 | REC MUTE ACTIVATED CONTINUOUSLY | REC MUTE would not release in record mode. I found that Q305emitter input was from a line regulated by D506, and the base input indir-ectly from a line regulated by D505. | ||
Sony | SLHF1000 | NEED PART NUMBER FOR PWR REGULATOR HOLDER (PG. 216) | Need mechanical piece that reference number 162 attaches to(pg. 216 of service manual). -HQ COMMENTS: Part number is 3-712-738-01, but is an unstocked part.Tokyo is shipping some pieces, and I will send you one at that time. |