XL-560E (serv.man2) - Sharp Audio Service Manual (repair manual). Page 13

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If the following buttons are pressed in this state, the operation is performed as follows.
"POWER" ................ The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD" ................ The pickup slides toward the outer periphery while this button is held down.
"REW/REV" ............. The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input

is invalid.

"PLAY" ..................... Shift to step 3
"STOP" .................... Return to step 1
"REC PAUSE" ......... Shift to step 5

2. Step 2 Mode
When the "PLAY" button is pressed in this mode, the laser lighting command LDON (8400) is sent, and the laser is turned on.
Other operations are not performed.

2. CD Test Mode (TEST 1)
In the CD test mode the operation of each step is enabled even when the LID-SW is off. However, if focus cannot be set in step
3 or any error processing is started, it is impossible to proceed to the next step. When the error processing is started, operations
other than termination of test mode by pressing the POWER button or return to the step 1 by pressing the STOP button are inhibited.

1. Step 1 Mode
When the CD test mode is turned on, the following indication lights, the processing (until turning-off of CD STB terminal of CD
initialization operation flow) is executed, and the next button input is waited.

After lighting for one second

If the following operation buttons are pressed in this state, the operation is performed as follows.

"POWER" ................. The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD" ................. After the pickup returns once to the innermost periphery, it slides toward the outer periphery while this

button is held down.

"REW/REV" .............. After the pickup returns once to the innermost periphery, it slides toward the inner periphery while this

button is pressed. However, if PU-IN is on, input is invalid.

"PLAY" ..................... Shift to step 2
"STOP" ..................... Invalid
"REC PAUSE" .......... Shift to step 5

* In case of initialization the pickup is moved toward the inner periphery. Any buttons other than "POWER" button are not

accepted until the shift of pickup to the inner periphery is completed at this time. If PU-IN SW ON cannot be detected within
10 seconds, the slide motor is stopped, and the following error indication appears. Press the POWER button to end the test
mode, or press the STOP button to return to step 1. Any other operations are inhibited.