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1. DC 105V (+B) Adjustment
Purpose: To obtain correct operation.
Symptom of Misadjustment: The picture is dark and
unit does not operate correctly.
Test Point
Adj. Point
TP503(+B),
VR601
TP504(GND)
Tape
M. EQ.
DC Voltmeter,
---
Plastic Tip Driver
Note: TP503(+B), TP504(GND),
VR601 --- H.V./Power Supply CBA
1. Connect the unit to AC Power Outlet. (exact AC
230 V)
2. Input a color bar signal from RF (or Ext.) input and
leave it for at least 20 minutes.
3. Connect DC Volt Meter to TP503(+B) and
TP504(GND).
4. Adjust VR601 so that the voltage of TP503(+B)
becomes +105±0.5 V DC.
2. H Adjustment
Purpose: To get correct horizontal position and size of
screen image.
Symptom of Misadjustment: Horizontal position and
size of screen image may not be properly displayed.
Mode
Input
Test Point
RF
Color
(or Ext.)
Bar
Spec.
+105±0.5 V DC
Note: R590 --- H.V./Power Supply CBA
1. Connect Frequency Counter to R590.
2. Set the unit to the Ext. mode and no input is
3. Operate the unit for at least 20 minutes.
4. Press [2] button on the remote control unit and
5. Press [PROG+/PROG-] buttons on the remote
6. Turn the power off and on again.
1-6-2
Adj. Point
[PROG+/PROG-]
R590
buttons
Tape
M. EQ.
---
Frequency Counter 15.625 kHz±250 Hz
necessary. Enter the Service mode.
(See page 1-6-1.)
select H-Adj mode.
control unit so that the display will change "0" to
"7."
At this moment, choose display "0" to "7" when the
Frequency counter display is closest to 15.625
kHz ± 250 Hz.
Mode
Input
Ext.
---
Spec.
T6609EA
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