Test Mode - Sony D-NE270 Service Manual

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D-NE270

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) –

SL824

(TEST)

SECTION 4

TEST MODE

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