XL-T300 (serv.man11). Test mode - Sharp Audio Service Manual (repair manual). Page 2

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XL-T300H
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The time display always indicates "0:00".
Press the following buttons in this state to obtain the operations specified below.
"ON/STAND-BY" ..... Test mode and power turned off to shift to the ordinary standby mode.
"FF/FWD" ................ The pickup slides toward the outer periphery while this button is pressed.
"REW/REV" ............. The pickup slides toward the inner periphery while this button is pressed.  If PICKUP IN is on, input is
invalid.
"PLAY" ..................... Shift to step 5
"STOP" .................... Return to step 1
"FUNCTION" ........... Shift to step 5
*If the focus is not received, the process returns to step 1.
4. Step 4 Mode
The CLV servo ON command (8600) is transmitted to wait for the following buttons to be pressed. (The disc is rotated for CLV
lock.)
Press the following buttons in this state to obtain the operations specified below.
"ON/STAND-BY" ..... Test mode and power turned off to shift to the ordinary standby mode.
"FF/FWD" ................ The pickup slides toward the outer periphery while this button is pressed.
"REW/REV" ............. The pickup slides toward the inner periphery while this button is pressed.  If PICKUP IN is on, input is
invalid.
"PLAY" ..................... If focus has been taken, shift to step 4 is executed. If not, acceptance is inhibited.
"STOP" .................... Return to step 1
"FUNCTION" ........... Shift to step 5
*If the focus is not received after it has been taken, the process returns to step 1.
3. Step 3 Mode
While the laser keeps lighting, CD initialization operation flow proceeds up to 'CLV servo ON' to wait for the following buttons
to be pressed.(Focus servo turned on for focus search)
The focus search is repeated to take focus.
Press the following buttons in this state to obtain the operations specified below.
"ON/STAND-BY" ..... Test mode and power turned off to shift to the ordinary standby mode.
"FF/FWD" ................ The pickup slides toward the outer periphery while this button is pressed.
"REW/REV" ............. The pickup slides toward the inner periphery while this button is pressed.  If PICKUP IN is on, input is
invalid.
"PLAY" ..................... Shift to step 3
"STOP" .................... Return to step 1
"FUNCTION" ........... Shift to step 5
2. Step 2 Mode
Press the "CD PLAY" button in this mode to transmit the laser lighting command LDON (8400) and turn on the laser.  Any other
operations are not performed in this case.
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