Service manual

14
Option byte 0
The following options are available in option byte 0:
bit 7 bit 6 bit 5 bit 4 bit3 bit 2 bit1 bit 0
NTSC Comb
SW (N-com)
H-out stop
(H-STP)
Forced ID ON
(FID)
ABL Gain ID sensitivity
switching(id sw)
ABL start point
0 = ON
1 = OFF
0 = Normal
1 = H-out stop
& low RGB
output
0 = Normal
1 = Killer on
Fixed System
(This function
doesn’
t work on
Auto1 & Auto2
mode.)
00: -0.74V
01: -0.64V
10: -0.37V
11: -0.12V
0:normal mode
1:low mode
(This function
works on only for
NTSC mode.)
00: -0.01V
01: -0.11V
10: -0.3V
11: -0.45V
Preset: OFF Preset: Normal Preset: Normal Preset: -0.37V Preset: Normal Preset: -0.01V
Table 0 Option byte 0 definitions
Option Byte 0 adjustment setting are 80hex.
Option byte 1
The following options are available in option byte 1:
bit 7 bit 6 bit 5
bit 4 bit 3 bit 2 bit 1 bit 0
S-Video RF NTSC - Stereo (Balance) Secam function Super Sense STV8203 Custom
Logo
0 = AV1
1 = AV2
0 = OFF
1 = ON
-
0 = OFF
1 = ON
0 = OFF
1 = ON
0 = OFF
1 = ON
0 = OFF
1 = ON
0 = OFF
1 = ON
Preset: OFF - Preset: OFF Preset: ON Preset: OFF Preset: ON Preset: ON
Table 1 Option byte 1 definitions
The setmaker’s logo can only be displayed if memory bank 1 is present. If this bank is present, displaying the
logo can disabled by setting bit 0 high. If the memory bank is present and bit 1 is set, then the logo will be
displayed for 15 seconds, after a cold start only.
NOTE: If no text is defined for the logo in memory bank 1, this option should always be 1
Option Byte 1 adjustment setting are 19hex.
Option byte 2
The following options are available in option byte 2:
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
PIF overmod Secam adj IF freq AFT ON BGP P Ym enb
0 = OFF
1 = ON
0: Normal
1: Secam black
level alignment
mode
000: 58.75MHz
001: 45.75MHz
010: 39.5MHz
011: 38.9MHz
100: 38MHz
101: 34.47MHz
110: 33.95MHz
111: 33.9MHz
0: Normal
1: AFT Mute
off
0: Normal
1: 1.5us
0: 0~0.8V TV
more than 0.8V OSD
1: 0~0.8V TV
0. 8~2.4V Half Tone
more than 2.4V OSD
Preset: ON Preset: Normal Preset: 100 Preset:
Normal
Preset: 0 Preset: 0
Table 2 Option byte 2 definitions
Option Byte 2 adjustment setting are 98hex.