Sharp CD-MPS440W Service Manual page 8

CD-MPS440W
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.)
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
"FF/FWD".............................
"REW/REV"..........................
"MEMORY/SET"..................
*If the focus is not received, the process returns to step 1.
5. Step 5 Mode
When the CD initialization operation flow is completed, the mute is
turned off, and playback is started. Even if playback reaches the
outermost periphery of disc, the operation does not stop. The LCD
display indicates the playback passage time as in case of ordinary
CD playback.
Press the following buttons in this state to obtain the operations
specified below.
"ON/STAND BY"..................
"FF/FWD".............................
"REW/REV".........................
"PLAY"...............................
"STOP"...............................
*If the focus is not received, the process returns to step 1.
Other cautions
• TOC IL is not available for this test mode.
shift to the ordinary standby mode.
The pickup slides toward the outer
periphery while this button is pressed.
The pickup slides toward the inner
periphery while this button is pressed.
If PICKUP IN is on, input is invalid.
Return to step 5
Test mode and power turned off to shift
to the ordinary standby mode.
The pickup slides toward the outer
periphery while this button is pressed.
The pickup slides toward the inner
periphery while this button is pressed.
If PICKUP IN is on, input is invalid.
Invalid
Return to step 1
3. Tuner Test Mode (TEST 2)
1. Outline of tuner (radio) test mode
The tuner test mode is intended to store the adjustment and mea-
surement frequencies in the preset memory CH. When adjusting
the tuner section in the production line, adjusting personnel are not
required to set frequency.
2. Details of tuner test mode
Press the "TUNER(BAND)" and "VOLUME UP" buttons in POWER
OFF state and turn on the power by the use of "ON/STAND BY"
button to preset and store frequency for adjustment and measure-
ment of destination specified by the AREA terminal in the preset
memory CH. However, Ordinary 1 and Ordinary 2 are stored in the
destinations when the test mode is obtained.
(As for frequencies to be preset and stored for each destination, refer
to item 3.)
The tuner test mode is started from preset No.1.
The operations of test mode are identical with the ordinary operations
of TUNER function. FUNCTION switching is invalid.
It is necessary to discard the content of preset memory when the tuner
test mode is ended; be sure to write "0000" or "1111" bits in the mem-
ory to be checked for judging memory error at initial setting and to ini-
tialize memory.
When the tuner test mode is obtained, the following display lights for
one second.
• The TUNER TEST 2 mode is obtained with >> + MEMORY/SET +
ON/STAND-BY. ->Turn off AC in the TEST 2 mode to restore the
initial state.
Turn off POWER to protect the memory of TEST 2 mode.
Turn off POWER again to obtain the ordinary operation while the
data is stored in the memory (besides TUNER).
If AC OFF state is maintained in this state for about 1/2 day, start is
executed in the initial state.
• To clear the whole memory, insert the AC cord, pressing MEM-
ORY/SET + CD PLAY.
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