ZS-SN10
11
11
ZS-SN10
CD SECTION
FOCUS BIAS CHECK
1. Connect the oscilloscope to TP (RFACO) and TP (VC) on the
CD board.
2. Insert the disc (PATD-012). (Part No.: 4-225-203-01)
3. Press the
u
button.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (
◊
) in the
center of the waveform can be clearly distinguished.
•
RF signal reference waveform (eye pattern)
VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 200 ns
0.5 to 1.1 Vp-p
When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.
TP
(VC)
TP
(RFACO)
IC201
– CD Board (Conductor Side) –
Checking Location:
Adjustment and Connecting Location:
L4
AM Frequency Coverage Adjustment
L2
FM Frequency Coverage Adjustment
AM Tracking Adjustment
CT3
L3
FM Tracking Adjustment
T1 AM IF Adjustment
T2 FM IF Adjustment
L1
CT1
TP
(VT)
TP
(GND)
TP
(ANT)
– TUNER Board (Component Side) –
– TUNER Board (Conductor Side) –
