i
CD PLAYER ADJUSTMENTS
f. ADJUSTMENTS
(a) Tracking balance adjustment
4
I
(1)
(2)
(3)
(4)
(5)
symmetrical, as shown in the illustration.
(6) Switch OFF the POWER.
Within one second after pressing the! OPENICLOSE and
RANDOM switches at the same time. press the FWD
TP 131 +
switch. (Service mode: TRACKING BALANCE)
(TE) -
Connect an oscilloscopetoTP131 (T=) and TP132 (VC).
IN
Set the test disc.
TP132&
PLAY switch push ON.
(Vc) -
Adjust SVR12 so that the oscilloscope’s waveform is
(b) Checking the “eye” pattern
(1) Switch “ON” the POWER.
(2) Connect an oscilloscope to J1 479 (RF] and TPI 32 (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.
L.P. F.
10K
‘7
~ ~ o~c,LLoscop=
T
1*5V
Ov
P-P
lV)DIV
A=B
2.2K ohm +
Jlf179
(RF)
o V&
I
OSCILLOSCOPE
I
TP132
Wc)
1
NING EXPANOED
-1o-
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