SD-SH111 (serv.man8). Adjustment - Sharp Audio Service Manual (repair manual). Page 3

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• Shifting to the test mode
If the POWER key on the main unit is pressed while the PLAY and VOLUME UP keys are held down in the power off state, the
unit enters the test menu mode. “SH111” is displayed at the top of the FL, and “Ver. 

∗∗∗∗

” (

∗∗∗∗ 

shows version No.) at the bottom.

Then, press the VOLUME UP or DOWN key to select the test mode, and determine it with the PLAY key. If direct keys are pressed
on the remote control while the version number is displayed, the unit enters the specified test mode directly.

1

 Shipment Test Mode

“1” of ten-key keypad

INITIAL

2

DVD TEST

“2” of ten-key keypad

TONE

3

AMP TEST

“3” of ten-key keypad

AMP

4

KEY TEST

“4” of ten-key keypad

KEY

5

DVD MECHA TEST

“5” of ten-key keypad

MECHA

6

DVD ROM WRITE TEST

“6” of ten-key keypad

DVD ROM

7

TUNER TEST

“7” of ten-key keypad

TUNER

∗

  In each test mode, “TEST” appears at the top of the FL and that shown under “Display” of the table above at the bottom.

Pressing the POWER key in the test mode will display COMPLETE for 1 second, and then cancels the test mode.
1. If the power failure occurs in each test mode, cancel the test mode and perform an operation to recover the electricity.
    (To reset the unit after the electricity resumes, be sure to write in irregular data for RAM check.)

• Canceling the test mode

Since the pickup semiconductor laser can easily damaged by 
the static electricity, handle the mechanism unit with care.
To prevent damage by the static electricity during 
transportation, the LD terminals are short-circuited at 2 points 
on the PWB. Unsolder them by a soldering iron after 
completing the connection. When you return the mechanism 
unit, solder the terminals again.

Notes for handling the mechanism unit

Soldering on the
mechanism PWB (two points)

DVD Motor PWB

4X

Flexible PWB