| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CDXR77 | CD ONLY PLAYS WHEN UNIT IS TURNED UPSIDE DOWN | CD only plays when unit is turned upside down. | ||
| Sony | STRAV1020 | SILKSCREEN FOR IC-251 PRINTED ON BOARD WRONG | Silkscreen printed on video board for IC-251 on video board isbackwards (ie. 180 degrees). Pin 1 on IC actually corresponds to pin 9on the board. | ||
| Sony | PSLX520 | INTERMITTENT SPEED | After refering to SDIS, and noting a similar problem with thiscircuit I checked R-107 and R-106. R-106 was a 390K resistor R-107 was a1.6K resistor. | ||
| Sony | SLV757 | DOES NOT RESPOND TO CONTROLS | Won't eject, power down. | ||
| Sony | STRAV1020 | PROTECTION CIRCUIT ACTIVATED | Protection flashes on front display. Q-719 (relay drive)shuts off de-energizing RY-701. Thus opening the signal path to speakers. | ||
| Sony | CFDD73 | INTERMITTENT SKIPPING / TRACK JUMPING | Unit would intermittently skip and sometimes would not AMS.Upon monitoring sled motor drive voltage, found it to be increasing.Normally, it is about 0.7V. | ||
| Sony | CFD455 | INTERMITTENT SKIPPING / TRACK JUMPING | Unit would intermittently skip and sometimes would not AMS.Upon monitoring sled motor drive voltage, found it to be increasing.Normally, it is about 0.7V. | ||
| Sony | CFD454 | INTERMITTENT SKIPPING / TRACK JUMPING | Unit would intermittently skip and sometimes would not AMS.Upon monitoring sled motor drive voltage, found it to be increasing.Normally, it is about 0.7V. | ||
| Sony | XR6180 | TAPE DECK WILL NOT FUNCTION OR WILL FUNCTION INCORRECTLY | Have seen several units so far where both Q-405 and the AMSplunger were defective. The plunger was actually melted. I am unsurewhether the plunger or the drive transistor originally caused theproblem. | ||
| Sony | SLHFT7 | POPPING IN BETA HIFI | Popping sound in beta hifi. | ||
| Sony | SLHF1000 | NO BETA HI-FI RECORD | No Beta Hi-Fi Record. Playback or pre-recorded material ok.All voltages ok on IC-004. Missing switching voltages at pin 44 IC-003.Found open foil between Q-610 and D-606. Simulated shorted transistor. | ||
| Sony | KPR46DX10 | SNOWY PICTURE ON MAIN SCREEN WHEN IN AUX, CUSTOMERS FAULT | Customer was complaining that when they hit Aux they only hadpicture on the child screen, with snow on the parent screen. -HQ COMMENTS: Found that they were using a VCR, and cable box in linewith the Converter and Aux. terminals. With the VCR connecte | ||
| Sony | DTC75ES | TEST TAPE TY7252 | Recommended test equipment list for DAT specifies a TY7251test tape for tracking. DTC-75ES manual calls for a TY7252. Are theyinterchangeable? -HQ COMMENTS: I will have to check with Tokyo. I suspect that there isa typo in the DTC-75ES service manual | ||
| Sony | SPP320 | INTERMITTENT RINGING | The Handset would only ring sometimes. In addition, theHandset would intermittently not beep when keys were pressed. Flexing theHandset Main PCB would cause the ringer to function. | ||
| Sony | CCDF70 | INCORRECT SLOW MOTION OPERATION | Slow motion operation erratic. |