Sanyo DC-X850 Service Manual page 13

i
CD PLAYER ADJUSTMENTS
c.
(a)
(1)
(2)
(3)
(4)
(5)
(6)
ADJUSTMENTS
Tracking balance adjustment
Connect an oscilloscope to TP3
(TE)
and TP4 ~C).
Set the test disc.
Repeatedly press the CD SKIP / SEARCH button.
PLAY / PAUSE switch push ON.
Adjust VR101 so that the oscilloscope's waveform is
symmetrical, as shown in the illustration.
Switch OFF the POWER.
TP1
(RF)
+
A
TP3
(TE)
B
+ <
SKIP/SEARCH
A= B
TP3
7
+
(TE)
OSCILLOSCOPE
TP4
(Vc)
o
I
rTl F
500"s
—— —
1
I
A
B
SKIP/SEARCH >
A=B
(b)
(1) Switch "ON" the POWER.
-. .
(2)
Connect an oscilloscope to TP1 (RF) and TP4 (VC).
(3) Load the test disc.
(4) PLAY switch push ON.
(5) Check to be sure that the " eye " pattern is at the center of
waveform and that the diamond shape is clearly defined.
(6) Press the STOP button.
(7) Switch "OFF" the POWER.
Checking the "eye"
pattern
-l.z -
I OSCILLOSCOPE
TP 4
(Vc)
o
I
D
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