Dicas Reparação
Modelo - Chassis TCFX7
Pesquisa: TCFX7 Enviar Dica Resolvida
Resultados 14
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | TCFX707R | SEVERAL PARTS INSTALLED BACKWARDS ON THE NEW PC BOARD | After installing new PC board, several problems occured.After troubleshooting PC board, the following components were found to beinstalled backwards: Q-303, Q-304, F-101, F-201, IC-304, Q-301 and Q-302. | ||
| Sony | TCFX707R | NO/INTERMITTENT TAPE TRANSPORT | Tape will intermittently stop or not run at all. Tech FlashNo. 003 dated 3/11/85 says to tighten gnd screw and add a star washer tosyscon board. I tried this, it made no difference at all in the problem. | ||
| Sony | TCFX7 | PL802 | On page 3 of S/M, reference is made to a PL802. This is alsoshown in schematic on page 39. This is the rotation detector lamp.In the parts list there is a reference to PL801 only. I need a partnumber for PL802. | ||
| Sony | TCFX705 | NO TRANSPORT | No transport functions, ie, PB, R/W, or FF. Servicer hadreplaced IC501, 502, 507. Inspection revealed signals going into IC502,but not output functions. | ||
| Sony | TCFX7 | PART NUMBERS FOR BUTTON ASSY | Page 42 of TC-FX7 service manual. There is no part numbersfor cassette door and button assy. Customer has unit that has beenscratched. -HQ COMMENTS: Cassette Lid Ref. #118 P/N A-2315-016-A Button Assy S805-S811 P/N 1-553-609- | ||
| Sony | TCFX77 | WILL NOT ENGAGE PLAY SOLENOID - WILL NOT STAY ON | This unit had two problems. 1) Unit would not engage playsolenoid. Found D905/43V rectifier to be cold soldered. 2) Would notstay in play. Found IC507 defective at Pin 11. This would not allowinput of the rotation detection signal to IC501/Pin 32 sh | ||
| Sony | TCFX707R | UNIT DEAD - NO OPERATION | Found R506 blown, replaced same. Transport worked, but nodisplay and no playback audio. Found PS302 open, replaced same. All OK.Ran several hours. Noticed PB level started to drop intermittently.Later, the display showed low and the audio had dropped | ||
| Sony | TCFX707R | NO TAPE TRANSPORT OR INT TAPE TRANSPORT | No tape transport or int. tape transport. | ||
| Sony | TCFX707R | INTERMITTENT TRANSPORT FUNCTIONS | All functions of transport keys would work most of the timewhen I stood unit on end to attempt repair. When unit was layed flat onbench no keys worked. | ||
| Sony | TCFX7 | INCOMPLETE INSTRUCTIONS IN MANUAL | Page 22 of S/M, instructions for servo adjustment areincomplete. Step 7 should refer to Pin 21 of IC902 for pulse adjustment. -HQ COMMENTS: As you pointed out, the TP (silk-screened as SPEED) isnot shown for the #7 in the adjustment procedures. The Pi | ||
| Sony | TCFX77 | MANUAL CORRECTIONS | The hardwire diagrams for both the TC-FX77 and TC-FX600 haveerrors. The schematic diagrams appear correct. Q504, Q506 are shown asNPN transistors incorrectly, they are PNP. | ||
| Sony | TCFX7 | EXCESSIVE WOW AND FLUTTER PLUS MOTOR NOISE | Motor comes with plastic clutch, which in time will comeflush against motor bearing, causing a grinding noise and wow and flutter.One solution is to put a small plastic washer at clutch shaft assy tostop it from going inwards against motor bearing. -HQ | ||
| Sony | TCFX77 | MISSING PART # IN MANUAL | There is no P/N for the capacitor C134, 234 (56pF/500V),which are connected to the R/P head, in the service manual. | ||
| Sony | TCFX7 | PART NUMBER NOT IN MANUAL | Unit would operate 3 seconds then stop. PL802 was found tobe open. The service manual does not list a part number for the lamp.Research thru Kansas City located the part number to be 1-518-343-81. |