Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
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Sony | TAM30 | SERVICE MANUAL HAS BEEN REVISED | The service manual has been revised. However, the new manualhas not been released as yet. -HQ COMMENTS: Tokyo will soon issue the revised manual. Until revisedU.S. model is issued, use Canadian service manual P/N 9-955-536-21.The following changes wer | ||
Sony | TAM30 | PART NUMBER CORRECTION: KEYBOARD SWITCHES | The part number for keyboard switches: SW1 to SW8, and SW15 isincorrectly listed in the service manualas 1-554-937-11. | ||
Sony | TAM30 | WILL NOT ANSWER INCOMING CALLS | |||
Sony | TAM30 | WILL NOT ANSWER INCOMING CALLS | Customer complains of unit not answering incoming calls. Unitworks fine in shop. Most of these that we have seen are when the customerlives in a smaller community or rural area. These answering machines seemto have a problem detecting the ring on some | ||
Sony | TAM30 | UNIT LOCKS UP | When applying power to the unit without a tape in the deck,unit does a quick reset and gives an error detection signal. This was anindication that the micro was trying to perform a mechanical function.Scan pulses were found on IC-3 pin 58 telling the mi | ||
Sony | TAM30 | INTERMITTENT LINE CONNECT | With the line cord plugged in, unit will grab the line in 60seconds (with audible dial tone) and then release the line in 60 seconds.This is a continuous cycle. This is caused by C-1 leaking which activatesPH-1 and grounds pin 4. This in turn holds IC- | ||
Sony | TAM30 | ACTS LIKE NO POWER AFTER KEY IS PRESSED | With line cord and power cord plugged in, the unit acts likethere is no power while performing OGM function. With line cord removed,OGM function can be performed. The cause was C-1 being leaky, which turn-ed on PH-1 and lowered pin 4 to ground holding | ||
Sony | TAM30 | IN ANSWER MODE TAPE FF TO THE END OF TAPE AND STOPS | Q-205 base to collector is open. With Q-205 defective, thereel pulses from PH-2 are not getting to IC-3, therefore, the reels do notstop until the end of the tape. | ||
Sony | TAM30 | ICM CUTS OFF DURING CONVERSATION. | Capacitor opens reducing audio to IC-1 which will not be astrong enough signal to operate the VOX circuit. Micro will cut unit offin 7 seconds during incoming message. | ||
Sony | TAM30 | INTERMITTENT NO AUDIO | Intermittently, audio is very low on playback ICM. | ||
Sony | TAM30 | CONTINUOUS LINE CONNECT | With or without power applied, the TAMs will have continuousconnection with the outside line. This is due to the line switch (Q-1)shorted collector to emitter. Also applies to serial numbers 60743,24519, 21397, 37987 and 35030. | ||
Sony | TAM30 | INCORRECT PART NUMBER IN SERVICE MANUAL SP-1 | When ordering part number for SP-1 in service manual, wrongpart is received. The part needed is an 8 Ohms speaker. The part re-ceived is an 16 Ohms speaker. It would be helpful if a more accuratedescription of the speaker was given i.e. AC resistance | ||
Sony | TAM30 | UNIT CUTS OFF DURING OGM PLAYBACK TO THE CALLER | When incoming call is received, OGM is activated, but is pre-maturely cut off. This is due to the fact that pin 52 of IC-3 has to beheld low while the OGM is played to the incoming caller. In order forthis to be accomplished, Q-4 must be turned on by Q | ||
Sony | TAM30 | BEEP TONES DURING MEMO OR CONVERSATION RECORD | Constant or pulsing beep tones during Memo Record andConversation Record. Also applies to serial numbers 12121, 15230 and27297. | ||
Sony | TAM30 | WRONG PART NUMBER IN SERVICE MANUAL | Part number (page 21, reference No. PH-2) 8-719-710-34 isincorrect. |