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There are currently no product reviews.
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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.
Pin No. 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
Pin Name LVSS RVSS RCHO RVDD MUTER XVDD XOUT XIN XVSS SBSY EFLG PW SFSY SBCK FSX WRQ RWC SQOUT COIN CQCK RES T11 16M 4.2M T5 CS T1
I/O � O O O
Description Left channel one-bit D/A converter ground. Must be connected to 0V. Right channel one-bit D/A converter ground. (Must be connected to 0V.) Right channel onr-bit D/A converter output. Right channel one-bit D/A converter power supply. Right channel one-bit D/A converter mute output. (Not used) Crystal oscillator power supply. Connections for a 16.9344 MHz crystal oscillator element.
I O O O O in standby state. (Not used) I O O I O I I readout clock input pin. This is Schmitt input. I O O O I I (Must be connected to 0V if not controlled.) I Test input. No pull-down resistor. (Must be connected to 0V.) Reset input. This pin must be set low briefly after power is first applied. Test output. Leave open. (Normally output a low level). (Not used) 16.9344 MHz output. (Not used) 4.2336 MHz output. Test input. A pull-down resistor is built-in. (Must be connected to 0V.) Chip seledt input. A pull-down resistor is built-in. Subcode readout clock input. This is a Schmitt input. Output pin for the 7.35 kHZ synchronization signal divided from the crystal oscillator. (Not used) Subcode Q output standby output. Read/write control input. This is a Schmitt input. Subcode Q output. Command input pin from control microprocessor. Input for both the command input acquisition clock and the SQOUT pin subcode Crystal oscillator ground. (Must be connected to 0V.) Subcode clock synchronization signal output. (Not used) C1, C2, sigle an double error correction monitor. (Not used) Subcode P, Q, R, S, T, U and W output. (Not used) Subcode frame synchronization signal output. This signal falls when the subcode are
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