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Tuning
instructions for CD
1010
Signal
source
Equipment setting
Connection of
measuring instrumenl
Item
to
be tuned
Tuning remarKs
1.
Focus
offset
Stop
DC
voltmeter
to
"FO"
VR3
DCOV
,-,=*"t ""*t
Stop
Oscilloscope
to
"TO"
VR5
DC 0 V
and minimum of
noise
3.vT
Stop
DC
voltmeterto
"VT"
VF7
DC
3.9
V
4. VCO
1. Frequ.
counterto
"TP"
CK
2. Shoft-circuit
plug
EFN/-G
3.
Remove
short circuit
VR8
4.3218 MHz
5. TE
Balance
Phillips Test
CD
5
A
1. Power otf
1,
Shon-circuit
Pin 2
to
3 at plug
TP-G
2.
Oscilloscope
to
"TP"
2.
Power on
VR4
DCOV
A=B
3,
Remove
shoft-circuit
6.
Tracking Gain
Titel No.
1
Play/Pause
I\,4illivoltmeter
to
"T
0"
VR6
lvlaximum-3dBAC
7.
Focus Gain
Titel No.
2
Play
lVillivoltmeter
to
"F
0"
VR2
140 mV AC
EFM:1.8VSS
Please
control point
1
and point 2 after balance
again
All
voltages measured against eadh.
4-.\
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