XL-515H (serv.man3) - Sharp Audio Service Manual (repair manual). Page 12

– 12 –

2. Step 2 Mode
    When the PLAY key is pressed in the mode above, the laser lighting is turned on.  In this state the laser is only turned on,
    and other operations are not performed.

When the following operation key is pressed in this state, the following operation is performed.
"POWER" ................ The Test Mode is set to off, power is turned off, and the mode is changed to the regular standby mode.
"FF/FWD" ................ While this key is held down, the pickup slides to the external periphery.
"REW/REV" ............. While this key is held down, the pickup slides to the internal periphery.  However, if PU-IN is on, entry is

................................. invalid.

"PLAY" ..................... Shift to Step 3
"STOP" .................... Return to Step 1

3. Step 3 Mode

While the laser is lighting, the focus servo is turned on, and focus search is performed.  If focusing failure occurs, focus search
is repeated until focusing is attained.

1. Step 1 Mode
    When the CD Test Mode is set, the following display lights, and the CD pickup slides to the innermost periphery.

After lighting for 1.5 sec

When the following operation key is pressed in this state, the following operation is performed.
"POWER" ................ The Test Mode is set to off, power is turned off, and the mode is changed to the regular standby mode.
"FF/FWD" ................ After the pickup returns once to the innermost periphery, the pickup slides to the external periphery while

................................. this key is held down.

"REW/REV" ............. After the pickup returns once to the innermost periphery, the pickup slides to the internal periphery while

................................. this key is held down.  However, input is invalid if PU-IN is on.

"PLAY" ..................... Shift to Step 2
"STOP" .................... Invalid

* In case of mode entry the pickup is moved to the internal periphery.  At this time entry of any key other than POWER key is

disabled until shift of pickup to the internal periphery is completed.  If PU-IN SW ON cannot be detected while waiting for 10
seconds, the slide motor is stopped, the following error is displayed, and entry of any key other than POWER key is disabled.