Sony BVM-2011P - 4. BA Board INPUT CIRCUIT FREQUENCY CHARACTERISTIC ADJUSTMENT

4. BA Board INPUT CIRCUIT FREQUENCY
CHARACTERISTIC ADJUSTMENT
Tektronix 1410
Generator
COMP SYNC signal
Fig. 4-1
1. Complete the connection as shown in Fig 4-1.
• FORMAT button (SUB CONTROL PANEL) .................... CODED
• INPUT selector (FRONT PANEL) .................................................. 1
• SYNC button (SUB CONTROL PANEL) ................................. EXT
• CONTRAST control (FRONT PANEL) ........................... Minimum
• BRIGHTNESS control (FRONT PANEL) ........................ Minimum
2. Adjust CV!Ol so that minimum as shown in Fig. 4-2.
CV/01
This mark should become MIN
when 180° opposite.
Fig. 4-2
3. Adjust output waveform peak to 12MHz with CV102 of the
BA board as shown in Fig. 4-3.
4.
0
10MHz 12MHz
0
12MHz
Fig. 4-3
Adjust CV!Ol of the BA board so that the output waveform
becomes flat in a range of Oto I 0MHz as shown in Fig. 4-4.
. .1
within •0.5d8
10MHz
Fig. 4-4
FRONT PANEL
~ BA board
,,/ ',.
75S1 terminator
~oaao
: @1N?vT
TG OUT
.___V-"-ID-'-E-"-0--'-A-'-'-0 a O O ~ ~ m
terminal l . . . ,
Tracking scope
BA board TP101
0
0
BA board
[gJ
@[QJ
0
0 IGJ CV101
TP101 8 © 10 I
CH·A cv102\\.:::J/
BRIGHTNESS
control
CONTRAST
control
0
AUTO
SET UP
PROBE
SCAN MODE SCREEN APER· BLUE MONO
r-.--1 r--r----1 TURE ONLY MODE
1§111]1!,iRGB
PHASE CHROMA BRIGHTNESS CONTRAST OVER INPUT
CD CD CD CD L~AD[g] [g]
POWER
DEGAUSS
0
[g[g[g[g][g[g[g[g][g ~
4-27
0 [gJ [gJ
~=-~-+~--- MA.NUAL 3 4
CONTRAST
MANUAL SW
=-
BRIGHTNESS
MANUAL SW
=-