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Excellent had everything I wanted, very happy with purchase
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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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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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5-2 Initial
Initial Failure
Downloading SW is OK ? (Is CSROM signal OK ?)
No
After power on, check and repair the important signals of U108 as follows
Yes
The node between R162 and C183 = "H" (RST)
No
Check the circuit related to reset
Yes No
R114 = "H" (BOOT) Resolder R114
Yes
Check all the other connection by Test S/W R150 = "H" (GPIO4)
No
Resolder R150
Yes
Check the circuit around LCD
No
R165 = "L" (GPIO2) Resolder R165
Check the circuit around U107(EEPROM) and data stored in it Replace PBA
END
5-3
Flow Chart of Troubleshooting
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