Aiwa XR-HG2MDK Service Manual page 32

7. Checking the Loading Mechanism and OWH
To check the operations of the loading mechanism and OWH, follow the procedure given below.
Every time the SYNC REC (DIGITAL) CD
state, the OWH moves up and down.
SYNC REC (DIGITAL) CD
MD EJECT button ................................................ OWH UP/unloading
8. Display Indication
The state of the circuits, selected disk and switches can be checked on the display.
Function
1 Laser power
2 Disk type
3 REC PROTECT SW
4 REFLECT SW
5 INSIDE LIMIT SW
6 LOADING SW
7 REC SW
3. REC PROTECT SW
9. Checking the Servo Operation
9-1. Checking the Focus Search and Spindle Kick 1 (checking the S-curve)
1) When the REPEAT button of the remote control is pressed in the "ALL SVoFF" state, the focus search is performed.
Then "FOCUS CHK" is displayed. These operations are repeated regardless of whether a disk is installed. Therefore,
the S-curve can be checked with the disk inserted.
2) After checking, press the STOP button to return the display to "ALL SVoFF".
9-2. Checking the Focus Search and Spindle Kick 2
1) When the PLAY button is pressed in the "ALL SVoFF" state without inserting a disk, the search and spindle kick are
performed at the same time. Then "FOCUS SCH" is displayed.
2) After checking, press the STOP button to return the display to "ALL SVoFF".
9-3. Checking the Focus Servo
1) Insert a disk.
2) Press the MODE button and set the servo mode according to the inserted disk as shown below.
• MO disk ............. Indication "SEL GRV" appears and "TIME MARK" lights.
• PIT disk .............. Indication "SEL PIT" appears and "AUTO MARK" lights.
3) Press the PLAY button.
If the focus servo is normal, "FOCUS SCH" appears and "FOCUS ON!" appears.
4) After checking, press the STOP button to return the display to "ALL SVoFF".
9-4. Checking the All Servo ON
1) When the ENTER button is pressed in the "FOCUS ON!" state, the tracking/sled servo is turned on and all servos run. If
the servos are all normal, "ALL SV ON" is displayed.
2) After checking, press the STOP button to return the display to "ALL SVoFF".
MD NORMAL button and the MD EJECT button are pressed in the "ALL SVoFF"
MD NORMAL ....... OWH DOWN
Display Pict indication
LA READ-1/2-WRITE T-BASS
SEL GRV TIME MARK
SEL PIT AUTO MARK
ROCK
POP
CLASSIC
EON
AG
2. DISC TYPE
4. REFLECT SW
During pict on
Displayed using the three-step level meter
MO DISC (for recording and playback)
PIT DISC (for playback)
REC is possible
PIT DISC
SW ON
(innermost circumference)
SW OFF
SW OFF
7. REC SW
6. LOADING SW
1. LASER POWER
5. INSIDE LIMIT SW
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During pict off
REC protect
MO DISC
SW OFF
SW ON
SW ON