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Ntsc Video Input (main Picture); Ntsc Rf Input (main Picture) - Sony KP-FX432M31 Service Manual

Ax-1 chassis, crt projection tv.
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5-1-2. NTSC Video Input (Main Picture)

1. Enter the NTSC video color bar (White & color 75%) signal.
2. Enter the service mode, and set respective items as follows.
3. Measure waveform, and each item is adjusted to become the
following figure.
4. After adjustment finished, press "
to write the data to the NVM.
(i) SUB CONTRAST
Condition :
Category
PIC
00
01
05
MCP
02
03
04
Adjusting Parameter :
CCPM
01 YLEV
VR1
VR1 – VR2 = 1.60 ± 0.02 Vp-p
(ii) SUB HUE/SUB COL
Condition :
Category
PIC
01
COLR
01
MCP
02
03
04
Adjusting Parameter :
CCPM
02 CLEV
CCPM
03 SHUE
VB1
VB3
VB2
VB1 = VB4 ± 20 mV
VB2 = VB3 ± 40 mV
(MUTE)" + "-" button
Item
Data
PIC
100
COL
0
PIOF
0
RON
0
GON
1
BON
0
VR2
GND
Item
Data
COL
56
HUOF
3
RON
0
GON
0
BON
1
VB4
KP-FX432M31/FX432M91/FX532M91

5-1-3. NTSC RF Input (Main Picture)

1. Enter the NTSC RF color bar (White & color 75%) signal.
(i) SUB CONTRAST
Condition :
Category
PIC
MCP
Adjusting Parameter :
CCPM
01 YLEV
VR1
VR1 – VR2 = 1.60 ± 0.02 Vp-p
(ii) SUB HUE/SUB COL
Condition :
Category
PIC
COLR
MCP
Adjusting Parameter :
CCPM
02 CLEV
CCPM
03 SHUE
VB1
VB1 = VB4 ± 20 mV
VB2 = VB3 ± 40 mV
Note : If "Sub HUE" can adjust at (ii), write "3" as HUOF data for
each picture modes (Dynamic, Standard, Hi-fine and
Personal).
If "Sub HUE" can not adjust at (ii), change HUOF data
then repeat (ii) and change HUOF data as shown below.
1 Change COLR 01 HUOF data from "3" to"2".
Repeat (ii).
If "Sub HUE" can adjust, write "2" as HUOF data for
each picture modes. (Dynamic, Standard, Hi-fine and
Personal)
– 76 –
RM-998
RM-998
Item
Data
00
PIC
100
01
COL
0
05
PIOF
0
02
RON
0
03
GON
1
04
BON
0
VR2
GND
Item
Data
01
COL
56
01
HUOF
3
02
RON
0
03
GON
0
04
BON
1
VB4
VB3
VB2
RM-998

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