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Modelo - Chassis XR7180
Pesquisa: XR7180 Enviar Dica Resolvida
Resultados 12
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | XR7180 | DISPLAY FLASHES "AUX" AND SHUTS DOWN (REPLACE IC301) | When tape is inserted or radio is switched on, display wouldfirst show that function for a second, then flash AUX and then turnoff. When this occured pin 61 of IC301 would go to 4.5 volts momentarily. | ||
| Sony | XR7180 | NEED PART NUMBER FOR HEAD CABLE | Need part number for head cable with connector. -HQ COMMENTS: The playback head flexible cable is supplied as part ofthe head it is not available separately. Please order part number1-543-506-11 to obtain the head and flex cable. | ||
| Sony | XR7180 | DIODE ON MAIN PCB NOT SHOWN ON SCHEMATIC OR MOUNTING DIAGRAM | The main PCB is different from the schematic diagram. Themain PCB (physical) has a chip diode between the base of Q-314 and pin 1of connector CNP-909. On page 29 of the service manual looking at themain board (conductor side) there is no indication of | ||
| Sony | XR7180 | NO AUDIO OR LOW AUDIO FROM SPEAKER OUT; LINE OUT O.K. | Low or no audio from speaker out when air conditioning orhead lights are on line out ok. | ||
| Sony | XR7180 | ERRATIC TAPE FUNCTIONS AND DISPLAY, NO AUDIO | No display, no AM, no FM tape runs but just auto-reverses. | ||
| Sony | XR7180 | PH-11 AND PH-12 ARE BOTH IMCOMPATIBLE WITH REPLACEMENT PARTS | The beveled corner on PH-11 and 12 is at pin 1 instead of thenormal pin 2. The real PCB layout is also different than in the servicemanual. I could not find replacements for PH-11 and 12. I have a sampleif you need it. | ||
| Sony | XR7180 | UNIT APPEARS DEAD | The unit appears to be dead but does have some LEDs on. Someof the supplies are low. This is due to an open emitter-base junction ofQ-317. Leakage through R-363 makes the circuit look loaded down. | ||
| Sony | XR7180 | OPEN TRACE (PATTERN) +B LINE ON AMP BOARD | Have seen open pattern on +B line on amp board at lower lefthand side by IC-501. -HQ COMMENTS: This pattern may actually have opened during service. Theoutput ICs fail and unit is brought in for service. If the techniciandoes not ground amp board with | ||
| Sony | XR7180 | UNIT DAMAGED DURING SERVICING | Pins 7 and 10 on (Main) board are not connected to ground viapin 4 of CNP-909. There may be a break in the trace, but the technicianhas not been able to locate it. | ||
| Sony | XR7180 | CAR STEREO SERVICE BULLETIN NO. 148 | The service bulletin shows two points on the amp PCB that mustbe connected with a jumper wire. The points shown are B+ and GRD. Thismust be incorrect. What are the correct points? -HQ COMMENTS: You are correct. The service bulletin is incorrect.Plea | ||
| Sony | XR7180 | OUTPUTS RELEASE SMOKE WHEN UNIT IS HOOKED UP FOR SERVICE | When unit hooked up for svc on bench, it will destroy one/bothoutput ICs. Ground needed for operation of unit is not in unit. It ismade in ground screws on the GMD case at rear. When servicing unit thiscase is not used - harness is used. This causes | ||
| Sony | XR7180 | MISSING PART NUMBER | There is no part number for this part in the manual, also nomention of it in the replacement book. -HQ COMMENTS: The part number is not missing. It is listed in theservice manual on page 44. However, the part number is incorrect. Thecorrect number is |