– 33 –
5-3. CD SECTION
Set the CD test mode when performing confirmations.
After completing the confirmation, release the CD test mode.
In the CD test mode, the set works as following sequence.
CD test mode sequence:
Note 1:
ALL SERVO ON mode 1 and TRACKING GAIN UP mode 1:
LPC ON (lights up “ALL” indication)
ALL SERVO ON mode 2 and TRACKING GAIN UP mode 2:
LPC OFF (Does not lights up “ALL” indication)
*) LPC: Laser power control
Note 2:
TRACKING GAIN UP mode 1, 2 is not used in servicing.
1. Entering the CD Test Mode
1. Press the
[OPERATE]
button to turn the power ON.
2. Open the disc lid, and put a disc.
3. Close the disc lid.
4. Press the
[OPERATE]
button to standby state.
5. Press the button
[EDIT]
,
[SOUND]
and
>
(CD) simulta-
neously.
6. After display “CD” for a few seconds, enter the CD test mode
(STOP mode 1), and display as below.
1. Enter the CD test mode
(STOP mode 1)
Press the
x
(CD)
button.
2. STOP mode 2
3. FOCUS mode
4. ALL SERVO
ON mode 2
5. TRACKING
GAIN UP mode 1
6. TRACKING
GAIN UP mode 2
7. ALL SERVO
ON mode1
Press the
x
(CD)
button.
Press the
[ , CD]
button.
u
Press the
[ , CD]
button.
u
Press the
[ , CD]
button.
u
Press the
[ , CD]
button.
u
Press the
[ , CD]
button.
u
Press the
[ , CD]
button.
u
Press the
x
(CD)
button.
Press the
x
(CD)
button.
Press the
x
(CD)
button.
Press the
x
(CD)
button.
Display
2. STOP Mode 2
1. Press the
x
(CD) button to enter the STOP mode 2, and dis-
play as below.
Display
2. Press the
>
and
.
button to move the optical pick-up to
position of the track where signal is recorded.
3. FOCUS Mode (Traverse Confirmation)
1. Press the
u
button to enter the FOCUS mode and display as
below. (Focus servo ON. CLV-S, tacking and sled servo OFF)
Display
2. Connect an oscilloscope to TP (TEO) and TP (VC) on the CD
board.
Connection:
88
XX
XX
XXX
88
07
00
3A0
11
07
00
3A0
3. Confirm that the traverse level of waveform satisfy specified
value as follows.
Traverse Waveform
+
–
CD board
TP (TEO)
TP (VC)
oscilloscope
(DC range)
Specified Value:
traverse level: 160 to 380 mVp-p
Connecting Location: CD board (See page 34)
A
traverse level:
160 to 380 mVp-p
B
VC
A = B
Summary of Contents for MINIDISC ZS-M35
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