Test Mode - Sony D-NF400 Service Manual

D-NF400/NF401
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In the test mode, this set can check the microcomputer version
and liquid crystal display.
1) Short SL824 (TEST) on the MAIN board with a solder bridge.
Then, turn on the power.
2) microcomputer version is displayed on the liquid crystal dis-
play, and the liquid crystal display is all lighted.
3) turn off the power and open the solder bridge on SL824 (TEST)
on the MAIN board.
Note: Remove the solders completely. Remaining could be shorted with
the chassis, etc.
– MAIN Board (Conductor Side) –
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SECTION 4

TEST MODE

SL824
(TEST)
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