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Modelo - Chassis F7
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | ICF7600D | NO FM, DISPLAYS CHANGE OK AND AM IS OK - COLD SOLDER (Q34) | Voltages around IC-201/202 are ok. I am able to changedisplay settings yet no audio and no tuning. | ||
| Sony | ICF7601 | BATTERY COMPARTMENT AREA DIFORMED DUE TO HEAT - D22 SHORTED | Rear cover deformed around battery compartment. | ||
| Sony | CCDF70 | NO TAPE FUNCTIONS WILL NOT EJECT | Unit will not eject, drum motor does not engage. | ||
| Sony | SRF75 | NO SOUND | B+ not going through switch S-2 to power up the unit. | ||
| Sony | CCDF70 | NO FUNCTIONS AND LCD DISPLAYS ALL LIT UP | Pins 24 and 25 of IC-001 had intermittent 12Mhz clock. Unitwould lock up. Reset out of pin 23 was intermittent as a result. Itwould not reset the micro on the FC-25 board. | ||
| Sony | CCDF77 | WON'T PLAY, FF, REW - UNIT LOADS, TREADS, DRUM TURNS | The Ever 5 volt from IC-503 is supplying B+ to the modecontrol IC. Capstan B+ and Drum B+ are present, but the 5V from Q-903 ismissing. This is a secondary supply from the DC to DC convertor. Q-903base is biased from IC-901. IC-901 was found to be ba | ||
| Sony | WMF707 | CLICKING NOISE DURING PLAY | Clicking noise during Playback on the reverse mode. Otherdirection is ok. | ||
| Sony | CCDF77 | SNOWY PICTURE | One field is extremely low and noisy on all tapes. Tracedproblem to defective RP-77 board. After replacing RP-77 board itstill had some snow. Replaced upper drum assembly A-7049-306-A. | ||
| Sony | CCDF77 | NEED PART NUMBER FOR THE DRUM BASE | I need the drum base for a CCD-F77. The manual shows it aspart of the drum assembly. It is not included when ordering the drumassembly. -HQ COMMENTS: A service bulletin will be issued on this soon. The partnumber is X-3686-482-5 and is in stock in KC | ||
| Sony | CCDF70 | MAIN CHASSIS FOR "O" MECHANISM | There is no part number in the service manual (page 153) forthe main chassis. On this unit one of the press-fit studs that holds theLS chassis is loose. Is the main chassis available as a replacement part? -HQ COMMENTS: As the O Mechanism is now out o | ||
| Sony | CCDF77 | WARNING LIGHT FLASHING | Warning light flashing intermittent or indicated eject flash-ing on. | ||
| Sony | CCDF77 | PART NUMBER FOR REC PROOF SWITCH TAPE SELECT | There is no part number listed for the REC proof switch onthis model. What is the part number? | ||
| Sony | CCDF77 | SCHEMATIC ERROR | Chappy from the Denver SSC reported a schematic error. Onpage 99 at IC-101, pin 16 shows the voltage to be +15vdc should be -9vdc.Pin 10 shows the voltage to be +9.4, should be +15. Page 104, pictorialshow the correct values page 99 is in error. -HQ C | ||
| Sony | CCDF77 | ERRORS IN SERVICE MANUAL | Errors in service manual on page 71 of Supplement No. 1:Section 4-5-17: Adjustment element should be CT-902, Section 4-5-18Adjustment element should be CT-901. Also on page 116 of service manual,the names of these two adjustment elements should be swap | ||
| Sony | CCDF77 | CAPSTAN RUN AWAY | Found capstan would intermittently run away. |