Adjustment Procedure
1710J-Series Waveform Monitors
7–5
The component to adjust is A1R58.
1. Turn the INTENSity control fully counterclockwise.
2. Adjust A1R58 (CRT BIAS) so that the display is just extinguished.
3. Set the INTENSity control to desired level.
A3 Main board
Front
R856
C953
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CAUTION
MAINS
VOLTAGE
W1 +5 V
R552
R553
R755
R660
R661
R167
R168
C368
C372
R274
Test point
C195
L180
L190
Q280
Q289
R489
R492
C696
R689
C775
C777
R700
R701
C784
C783
C778
C683
R683
R680
J500
J197
J699
CRT
BIAS
R58
GEOM
R45
FOCUS
R11
W4 –15 V
W3 +15 V
+5 V
ADJ*
R99
*671–2890–07 and above
A1 Power supply board
ASTIG
R49
J99
R003
J504
Figure 7–2: Adjustment locations for the Main and Power Supply boards
The components to adjust are A1R45, A1R11, and A1R49.
1. Connect the DMM between pin1 of A1J3 and ground.
2. Adjust R45 (GEOM) for 35V
±
1 V at pin 1 of J3.
CRT Bias
Geometry, Focus and
Astigmatism
Содержание 1710J Series
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