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Rgb 100 Ire Adjustment; Frequency Characteristics Adjustment - Sony BVM-D32E1WA Maintenance Manual

Trinitron color video monitor.
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10. RGB 100 IRE Adjustment

Adjustment
Step 1
. . . . . Input 100 IRE RGB signal.
. . . . . Connect an oscilloscope to TP105.
Step 2
. . . . . Like step 1, connect oscilloscopes
to TP305 and TP505.

11. Frequency Characteristics Adjustment

Note: Do not adjust the BK board with the extension board and cable connected in this adjustment.
Adjustment
Step 1
• Input the 0 to 40 MHz sweep signal
with the RGB signal input.
(MARKER ON)
• Rotate RV100 fully in the clockwise
direction (2).
• Connect an oscilloscope to TP2 (R)
of the C board using a 100:1 FET
probe.
• Adjust CV100 so that the waveform
satisfies the standard.
If unadjustablecompletely using
CV100, adjust to satisfy the standard
while tracking with RV100 and CV100.
5-8
Standard
The 100 IRE level of the TP105 output is equal to
the 100 IRE pulse.
Equalize
The 100 IRE levels of TP305 and TP505 are
equal to the 100 IRE pulse.
Equalize
Standard
The 0 to 30 MHz range of the TP2 (R) output
waveform is flat :
+0.5
0
dB
_1.0
Note: Adjust so that the 25 MHz marker becomes 0
dB, and check if the above standard is satis-
fied.
Adjusting Point
The adjustment menu is
R 100 IRE located inside
the BK BOARD menu of
the MAINTENANCE menu.
The adjustment menus are
G 100 IRE and B 100 IRE
located inside the BK BOARD
menu of the MAINTENANCE
menu.
Adjusting Point
1 CV100 (B-2) BK board
If outside the standard:
1 RV100 (B-2) BK board
25MHz
BVM-D32E1WA/D32E1WE/D32E1WU

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