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Even if the PDF is a scan, I can read the information I need.
The price is affordable and the service (mail sending) is very fast.
Thanks ! Regards. William (Fan of Kenwood)
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Very good quality original datasheet!I like this amazing website!!!!!!
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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.
5. Flow Chart of Troubleshooting and Circuit Diagrams
5-1 Power ON
'POWER ON'does not work
Yes
Check the Battery Voltage is more than 3.2V
No
Charge the Battery
Yes
When the "END" key is pressed, the voltage of "D304 pin1" 3.6V?
No
Check the Dome sheet
Yes No
U474 pin 2,3 > 3.2V Check the circuit related to U474
Yes No
U619 pin 5 2.5 V ? Check the circuit related to U619
Yes No
U620 pin 5 3.0 V ? Check U620 and related circuit
Yes No
Check for the clock signal at R107
Check the clock generation circuit (related to U100 and Q100)
Yes
Check the initial operation
END
Flow Chart of Troubleshooting and Circuit Diagrams
5-1
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