Sony ZS-SN10 Manual de servicio - Página 11

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Adjustment and Connecting Location:

– TUNER Board (Component Side) –

AM Frequency Coverage Adjustment

FM Frequency Coverage Adjustment

– TUNER Board (Conductor Side) –

(VT)

(GND)

ZS-SN10

T2 FM IF Adjustment

T1 AM IF Adjustment

FM Tracking Adjustment

CT1

CT3

AM Tracking Adjustment

(ANT)

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

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.

Checking Location:

– CD Board (Conductor Side) –

IC201

(VC)

(RFACO)

ZS-SN10