Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | TAM50 | UNIT WILL NOT RECORD | Phone line on unit stays open causing all lines to be busy. | ||
Sony | TAM50 | CONTINUOUS TEL LINE CONNECT WITH POWER APPLIED | Unit grabs line when power is applied. D-2 shorts, whichapplies unit supply voltage to pin 15 (power detect) of IC-3 (Micro).This intermally damages micro processor. | ||
Sony | TAM50 | LOW ICM AND OGM RECORDING | Low audio when recording OGM and ICM but when playing back aprerecorded tape, unit works correctly. | ||
Sony | TAM50 | NO OPERATION OF TAPE TRANSPORT | No operations of tape transport i.e. pinch roller would notengage gear, Reference No. 75, was not engaging due to the washers,Reference No. 72, being gone. | ||
Sony | TAM50 | 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. | ||
Sony | TAM50 | 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 | TAM50 | 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 | TAM50 | CONTINUOUS LINE CONNECT WITH POWER APPLIED | TAM seizes telephone line when power is applied. Pin 25 ofIC-3 (line on pin) is being held high, which turns on Q-2 and Q-1,which causes the line to be seized. Pin 25 is getting the high from R-241on the (sub board), but R-241, R-242 and Q-207 all che | ||
Sony | TAM50 | BEEP TONES DURING MEMO OR CONVERSATION RECORD | Constant or pulsing beep tones during Memo Record andConversation Record. | ||
Sony | TAM50 | WRONG PART NUMBER IN SERVICE MANUAL | Part number (page 21, reference No. PH-2) 8-719-710-34 isincorrect. | ||
Sony | TAM50 | INTERMITTENTLY MACHINE STOPS | Intermittently machine will not reset or sometimes stops inmiddle of ICM recording. At that time you will see (-) on display. Alsopertains to serial number 23638. | ||
Sony | TAM50 | WILL NOT RECORD MESSAGES | After reset, may take one or two messages then will just shut-down. | ||
Sony | TAM50 | UNIT WILL NOT SET UP TO TAKE MESSAGES - GET ERROR BEEPS | Unit will not set up to take messages when Answer button ispressed. Sometimes you can record the OGM, but when the unit tries torewind the tape, you get the error beeps. | ||
Sony | TAM50 | UNIT DEAD, DOES NOT RESPOND TO ANY BUTTON - ALL LIGHTS OFF | Unit is dead. Does not respond to any button. None of thelights turn on and no beep is heard.The micro IC-3 had all the right voltages, except for IC-3/pin 8 which waslow instead of high. Found that the TIME STAMP IC-10 had no supplyvoltage. | ||
Sony | TAM50 | WILL NOT RECORD | Unit was recording static. |