Ntsc Video Input (Main Picture); Ntsc Rf Input (Main Picture) - Sony KP-FR43M31 Service Manual

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 "% (MUTING)" + "-"
button 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
White Level
VG1
VG1 – VG2 = f VG = 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
VB2
VB1 = VB4 ± 20 mV
VB2 = VB3 ± 40 mV
Item Data
PIC 100
COL 0
PIOF 0
RON 0
GON 1
BON 0
Black Level
VG2
GND
Item Data
COL 56
HUOF 3
RON 0
GON 0
BON 1
VB4
VB3
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
VG1
VG1 – VG2 = f VG = 1.60 ± 0.02 Vp-p
(ii) SUB HUE/SUB COL
Condition:
Category
PIC
COLR
MCP
Adjusting Parameter:
CCPM 02
CCPM 03
VB1
Note: If "Sub HUE" can adjust at (ii), write "3" as HUOF data
for each picture modes (VIVID, Standard, Custom).
If "Sub HUE" cannot 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. (VIVID, Standard, Custom)
– 75 –
KP-FR43M31/FR43M91
Item
00 PIC
01 COL
05 PIOF
02 RON
03 GON
04 BON
YLEV
White Level
Black Level
VG2
GND
Item
01 COL
01 HUOF
02 RON
03 GON
04 BON
CLEV
SHUE
VB4
VB3
VB2
VB1 = VB4 ± 20 mV
VB2 = VB3 ± 40 mV
RM-GA001
Data
100
0
0
0
1
0
Data
56
3
0
0
1