Read Sony CFD-575 / CFD-577 Service Manual online
– 12 –
IC701
TP (FO)
TP (VC)
TP (TO)
+
-
TP (TO)
TP (FO)
oscilloscope
(DC range)
TP (VC)
5. Connect oscilloscope to TP (TO) and TP (VC) on CD board.
6. Adjust RV704 on CD board so that the waveform is as shown in
6. Adjust RV704 on CD board so that the waveform is as shown in
the figure below. (Tracking gain adjustment)
7. Release test mode after adjustment is completed.
VOLT/DIV : 1V
TIME/DIV : 2ms
TIME/DIV : 2ms
• Incorrect Examples (fundamental waveform appears)
low tracking gain
VOLT/DIV : 1V
TIME/DIV : 2ms
TIME/DIV : 2ms
high tracking gain
High fundamental wave
than for low gain
VOLT/DIV : 1V
TIME/DIV : 2ms
TIME/DIV : 2ms
Adjustment Location :
0V
0V
0V
( )
CT2 : AM Tracking Adjustment
CT1 : FM Tracking Adjustment
L1 : FM Tracking Adjustment
CFT1 : AM IF Alignment
L3 : AM Tracking Adjustment
L4 : AM Frequency Coverage Adjustment
L2:FM Frequency Coverage Adjustment
[MAIN BOARD] (Component side)
[CD BOARD] (Component side)
RV702 : Focus Gain Adjustment
RV703 : E-F Balance Adjustment
RV704 : Tracking Gain Adjustment
RV701 : Focus Bias Adjustment
[CD BOARD]
Click on the first or last page to see other CFD-575 / CFD-577 service manuals if exist.