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CD player check
No.
ITEM
SETTING
Step 1~2 are in TEST MODE
TEST MODE : While pressing the [CD PLAY/PAUSE] key, turn power on.
LASER
1
POWER
Test disc
LASER
2
Type 4
CURRENT
Note:
Type 4disc :SONY YEDS-18 Test Disc or equivalent. (KTD-02)
LPF : Around 47kΩ + 390pF or so.
(a) Laser Power
TE
L 13942296513
Pickup
www
.
ADJUSTMENT
INPUT
OUTPUT
SETTING
Set the sensor sec-
tion of the optical
–
power meter on the
pickup lens.
Connect the DC
voltmeter to
CN25(#1 and #2) in
X09
0.05~0.15 mW
Optical power meter
x
ao
y
i
8
PLAYER
ALIGNMENT
SETTING
POINT
Short circuit
OPEN/CLOSE SW.
Press the "PLAY" key
to check that the dis-
play is "03".
Press the "PLAY" key
to check that the dis-
play is "03" or "05"
(d)
RF signal: AC coupled
Q Q
3
6 7
1 3
¶
RF signal in test mode (PLAY).
¶
Perform the tangential and focusing offset are focused
into one point on the display. The crossing points above
and below the center shall also be looked clearly.
u163
.
MDX-G3
2 9
9 4
2 8
ALIGN FOR
On the power from
0.05 to 0.15mw. when
the diffraction grating
–
is correctly aligned
with the RF level of
0.8Vp-p or more
–
220mV to 550mV
1 5
0 5
8
2 9
9 4
m
co
9 9
FIG.
(a)
2 8
9 9
11
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