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This service is relatively cheap, document is fast available, schematic is readable.
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So far I´m a satisfied customer. I have only downloaded "TECHNICS SX-KN470 Service Manual" maybe I will use it later.
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Peter
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Good manual. It is complete and of high quality, both text and graphics. The schematics are with the original big size, so it can be viewed or printed without any loss of resulution and sharpness.
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We needed a manual quickly...online it was available immediately, at a very low price. We loved the convenience!
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4-2. +12V is not supplied.
START
Are +5V and -12V supplied normally ?
NO
Repair
1. In case of all outputs stop, refer to the +5V troubleshooting.
YES
Is the voltage at IC3 1-3 pin 12.5V or more ?
NO
Repair
1. When the voltage between IC3 1-3 pin is 12.5V or lower, +12V is not supplied. 2. D16 open may be the cause.
YES
NO
Is +12V supplied ? Repair
1. IC3 trouble may be the cause.
YES
OK
4-3. �12V is not supplied.
START
Are +5V and +12V supplied normally ?
NO
1. In case of all outputs stop, refer to the +5V troubleshooting.
Repair
YES
Is the voltage at IC4 1-2 pin -14V or more ?
NO
Repair
1. When the voltage between IC4 1-3 pin is �14V or lower, �12V is not supplied. 2. D17 open may be the cause.
YES
NO
Is -12V supplied ? Repair
1. IC4 trouble may be the cause.
YES
OK
6�5
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Parts Catalog Parts Catalog only. It's available in PDF format. Useful, if Your equipment is broken and You need t…
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