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Complete MFG Service Manual at a good price FAST !
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Downloaded the manual, reasonably straightforward, pretty much exactly as advertised.
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very helpfull
circuit diagram and sparepart list available
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Very good reproduction (copy) of original manual. Didn't have a parts list, but schematic was completely labeled with parts. Complete instructions on how to adjust mechanical functions of the 8-track deck. Well worth having and at a very reasonable cost.
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It's a full manual. All the parts are in there. I haven't found the problem yett, but I am working on it; hope I can rebuild the part myself. To make it more secure and unbreakable this time. Because the part has failed several times before and costs a lot to let it be repaired.
Thanks so much for this rich illustrated and parted manual.
6-5. IC PIN FUNCTION
� MAIN BOARD IC701 ML63512-127TBZ060 (SYSTEM CONTROL)
Pin No. 1 2 3 4 5 Pin Name � FWD SW CENTER SW REV SW CASSETTE SW I/O � I I I I Not used (Open) Detection switch (S701) input terminal �L�: FWD Detection switch (S701) input terminal �L�: CENTER Detection switch (S701) input terminal �L�: REV Cassette detection switch (S901-1) input terminal �L�: with cassette �H�: without cassette Serial data output of communication with the remote commander having phone, and the remote control sensing signal input from remote commander having phone Tone selection signal output to TA2123F (IC301) 7 REVIVE CTL MEGA BASS CTL F/R CTL BOOST CTL O �L�: REVIVE �H�: OFF/MEGA BASS/GROOVE Tone selection signal output to TA2123F (IC301) �L�: MEGA BASS �H�: OFF/REVIVE/GROOVE FWD/REV selection signal output to TA2123F (IC301) �L�: FWD �H�: REV Bass boost control signal output to TA2123F (IC301) �L�: OFF �H�: ON Power supply ON/OFF control signal output to TA2123F (IC301) 11 AMP CTL O �L�: power supply OFF �H�: power supply ON (The power supply ON/OFF control of Dolby NR amplifier (IC302) is performed.) 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 MUTE CTL SET STOP1 SET STOP2 BATT DET KEY IN PM CTL PHOTO CTL LED BATT DOLBY CTL VDD1 VSS VDD VDDH CB1 CB2 VDDL XT0 XT1 TAT1B TAT2B OSCM OSC0 O I I I I O O O O � � � � � � � � � I I � I Power mute control signal output to TA2123F (IC301) �L�: mute ON �H�: mute OFF Battery voltage detection input terminal when the machine is stopped. (A/D input) Reference voltage input terminal when the machine is stopped. (A/D input) Battery voltage detection input terminal (A/D input) Key input terminal (A/D input) Plunger drive signal output �L�: plunger ON Control signal output to the rotation detection circuit of the capstan/reel motor �L�: rotation detection circuit ON LED (D703) drive signal output to BATT display �L�: LED ON Dolby ON/OFF control signal output to Dolby NR amplifier (IC302) �L�: Dolby NR, ON, H: Dolby NR OFF Power supply terminal for external interface (+2.5 V) Ground terminal Power supply terminal (+1.5 V) Step-up power supply terminal for back-up Terminal to which condenser for step-up power supply is connected Terminal to which condenser for step-up power supply is connected Power supply terminal for internal logic Terminal to which main system clock is connected (32.768 kHz) Terminal to which main system clock is connected (32.768 kHz) Test input terminal Normally, fixed to �H�. Test input terminal Normally, fixed to �H�. Terminal to which external capacitor for oscillation is connected Not used in this machine (empty terminal) Terminal to which resistance for high-speed CR oscillation (800 kHz) is connected Not used in this machine (empty terminal) Terminal to which resistance for high-speed CR oscillation (800 kHz) is connected Not used in this machine (empty terminal) System reset signal input from the reset signal generator (IC703) �L�: reset 35 36 37 38 RESET BEEP IN PHOTO AVLS CTL I O I O �L� is input for several hundreds msec after power supply starts up, then �H� is input. Beep sound output to TA2123F (IC301) Rotation detection input of capstan/reel motor (M901) AVLS ON/OFF control signal output �L�: AVLS OFF, �H�: AVLS ON Description
6
DATA/RMUM
I/O
8 9 10
O O O
34
OSC1
O
� 22 �
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