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There are currently no product reviews.
 ;
Excellent just what I needed to replace the electrolytic caps and make this old gem a beauty again. Was as scan of the original photocopied service manual.
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It was helpful to get schematic with waveforms in important points and lot of service information. Manual is good quality, fast delivered. Of course it is hardcopy of paper one with all its disadvantages.
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I want to give you a real heads-up for your desire to enable such people as I to acquire the information I need to maintain the older types of equipment such as this Akai HXA351W. You do a swell job with all the processes you have to perform so I can have a legible, thus usable
document which does not send me crazy trying to figure out the blurry text of a bad copy.
Very well done, Thomas.
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This manual is very well presented and after printing out looks about as close to an original as I think you can get. The quality is second to none.
The content of the manual is comprehensive and I think it would be well suited to an audio repair professional which I'm not but I did find it very informative and helpful.
The cost of the manual is more than covered by the money I'll save when I change the keep memory battery now I have the relavant info.
Very pleased with my purchase and can recommend it wholeheartedly as I can other manuals I've downloaded from this site.
Regards
Limey Alex
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Complete manual including mechanical part in good pdf quality. Shaded greys of the pcb due to pdf not perfect but usable.
Ic DESCRIPTION-2 IC, lJPDl 7709GC-51 7-399
Pin No. 1 2 3 4 5 6 7 8 9 Pin Name
I/o
]1
Tape mechanism standby input
Description
ST-BY
MS signal input (H: Track absent, L: Track present) No connection Tape end detection input I
FWD/REV mechanism position detection input
Main motor control output
*
SUB M CON2 AUX/MIC H. BASS 1 H. BASS 2 BS CONT NR B CONT SIFT PACK-IN MODE POWER MTL PL CONT CONT
Sub-motor
1 control output 2 control output switching signal output
]0 o 0 0 o o
I I I
Sub-motor AUX/MIC H.BASS H.BASS
I I
10
11 12 13 14 15 16 17 18 19
control output 1 (only display is changed) control output 2 (only display is changed) output output shift switch input I I
MWBS switching
Dolby NR ON/OFF Rotary commander
Tape inserted status detection input Tape mechanism mode pulse input Unit power control output Metal tape ON/OFF output
o 10
I O
POWER MUTE STAND BY M
Muting
output to power amp
I I
20 21
22 23 24 25 26 27 28 29
10
Standby muting output to power amp Device ground (LC75854 (LC75854 key matrix is used simultaneously) key matrix is used simultaneously) input For key matrix (2) For key matrix (1)
GND 3
10
I
Rotary commander AF IN FM S-M AM S-M AM IF FM IF VDD FM LOC OSC AM LOC OSC GND EO 2 EO 1 TEST IF REQ CON LOC/DX OUT II II II I I � I I �
I
I I
AF level input during AF operation FM S-meter signal input AM S-meter signal input AM IF count signal input FM IF count signal input Device power supply FM local oscillation AM local oscillation Device ground Charge pump output for low-pass filter Charge pump output for low-pass filter Device test input (need to be pulled down) IF count signal request output LOC/DX switching output during radio tuning input input
30 31
32 33 34 35 36 37 38 39
I
I
I
0 0
�
I
o o o
BEEP OUT
Beep sound output (200Hz, 3kHz, 50ms) The input is accepted only when the display input is received (MONO=H, ST=L). In
I
40
ST IND MOIST
OUT
I/o
other modes, the ST indication MONO key is pressed.
is switched off. Forced monaural output when the
18
 $4.99 CTFX728 AIWA
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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