| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV27XBR10 | DEAD, SHORTED HOR. OUTPUT Q-503, SEE SERVICE BULLETIN 161R1 | Q-503 was shorted. | ||
| Sony | SPP50 | NO COMMUNICATION BETWEEN BASE AND HANDSET. | No communication between base and handset. | ||
| Sony | XR7077 | INCORRECT PART NUMBER AND TYPE IN SERVICE MANUAL, Q325 | The parts list in the service manual shows Q325 as a2SA1175HFE, p/n 8-729-119-76, which is a different type and package thanthat which is shown on the schematic. The type shown on the schematicis the correct type (2SB1132), which now subs to type 2SB111 | ||
| Sony | XR7080 | BEEP TONE NOT WORKING | Customer sent unit for repair because beep tone stoppedworking. Tried to turn on beep tone by pressing SELECT and 6 keys, butbeep tone would not come back. -HQ COMMENTS: Unit was being bench tested by using line out from unit.This model only has beep t | ||
| Sony | CCDTR4 | UNIT STAYS ON WITH SWITCH IN OFF POSITION | Unit works fine but when you turn the camera off, the viewfinder stays on also the pause and caution light. Cam is on and stayson. Found that there was a short between pins 5 and 6 on cable FP-330 onVS-70 board. | ||
| Sony | CCDF36 | NO REWIND STOP OR RECORD | Rewind, Stop and Record buttons did not work. Found data pre-sent on (MI5), pin 42 IC-501, all the time (no buttons pushed). FoundQ-536 leaking (MO 3), pin 23 IC-501, into (MI5) pin 42 IC-501. | ||
| Sony | XR7087 | FM APPEARS TO DRIFT | FM appears to drift after warm up. Drops out of stereo mode.Distorted audio. | ||
| Sony | KV27EXR15 | NO PICTURE/NO DISPLAY, REPLACE CRT | No picture and no display. Y/S inputs to IC-301 (pins 3 and 5ok). No RGB outputs. IC-301 pin 7 at 0.2vdc confirming IC-301 has pic-ture muted. G-2 voltage ok. IC-301 pins 19, 21, 23 all at 3.8vdc (shouldbe 4.2 - 7vdc), indicating missing cathode sam | ||
| Sony | DTC75ES | NOISE IN AUDIO | Customer complained of noise and glitches in audio. CheckedRF with scope and it was good. TY7252 tracking tape showed good envelope.However, when I changed back to my audio tape one head was missing. | ||
| Sony | DTC1000ES | TROUBLESHOOTING DIGITAL CIRCUITS | Intermittent audio distortion. Found that using a LeaderLB05860 waveform monitor hooked up to the digital output quickly demon-strated that one unit had a problem with its digital circuit and one didnot. Viewed the digital output on rear panel with the | ||
| Sony | DTC75ES | TROUBLESHOOTING DIGITAL CIRCUITS | Intermittent audio distortion. Found that using a LeaderLB05860 waveform monitor hooked up to the digital output quickly demon-strated that one unit had a problem with it's digital circuit and onedid not. Viewed the digital output on rear panel with th | ||
| Sony | DTC700 | TROUBLESHOOTING DIGITAL CIRCUITS | There were two DTC-700s in the shop both had intermittentaudio distortion. Found that using a Leader LB05860 waveform monitorhooked up to the digital output quickly demonstrated that one unit had aproblem with its digital circuit and one did not. Viewe | ||
| Sony | DTC700 | NO SOUND | The unit had no sound. Looked at coaxial digital out withscope. Found it distorted even in Stop mode. Checked IC-307 X-302 andX-303 waveform. Found both crystals producing a distorted waveform.Found X-303 was bad. | ||
| Sony | SLV757UC | INTERMITTENT SHUT DOWN | Found weak drive voltage from pin 11 of IC-001 on MD-22board causing flat spot on drum motor. | ||
| Sony | ITA600 | MAIN PCB HAS WRONG MICRO INSTALLED | Boards coming from Kansas City have wrong micros installed.The correct IC number is TMP47C47N-9613. The IC in the new boards isTMP47C47N-9635. These ICs are not compatible. |