|
|
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
The manual was very clear and contained all the information I was looking for. My dishwasher is working again because of this servicemanual!
;
Quality scan, great manual. I solved my problem with this manual.
 ;
The AKAI 1720 model reel to reel tape recorder described in this Manual is quite an old unit - circa late 1960's. As a consequence, the description of the mechanical details - and adjustments thereof - is quite critical. The manual does this quite well. The schematics are also well presented and have detailed PCB overlays. Probably the only negative is that some half-tone detail has been lost from the original manual as it has been scanned in simple B&W.
;
Perfect source for service manuals: fast and professional transaction; high quality, perfect readable and largely scaleable PDF; complete schemes, diagrams and spare part list. Tnx a lot, cu again!!!!
;
I got your link from a friend and I must say that I am really satisfied with your service. Specially this B&O manual I didn't find anywhere on the web... but you could deliver it :-) . You deliver very fast and the copy is of good quality. So your webpage is bookmarked. Thanks
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 �
|
|
|
> |
|
