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level.
1-3-1.Power switch control
Port
Pin7(POWER)
1-3-2. Band control
Port
Pin42(BAND1)
Pin41(BAND2)
Pin1(UHF)
BAND OPTION LA7910
Port
Pin42(BAND1)
Pin41(BAND2)
Pin1(UHF)
1-3-3. AV control
a). One-way AV
b). Two-way AV
c). Three-way AV
PORT
Pin39(AV1)
Pin38(AV2)
POWER ON
BAND
BAND
OPTION=0
OPTION=1
V-L V-H UHF
V-L V-H UHF
0
1
1
0
0
1
x
x
x
V-L V-H UHF V-L V-H UHF V-L V-H UHF V-L V-H UHF
0
1
1
0
0
1
x
x
x
PORT
Pin39(AV1)
Pin38(AV2)
PORT
Pin39(AV1)
Pin38(AV2)
TV
0
0
0
BAND OPTION=2 BAND
V-L
0
1
1
1
1
0
1
0
x
x
x
0
TUNER
PORT/H
0
1
1
1
0
1
x
x
x
TV
0
0
TV
AV1
0
0
0
1
AV1
1
0
POWER OFF
1
OPTION=3
V-H
UH
V-L V-H UHF
F
0
0
0
1
0
1
0
1
1
POTR/L
1
0
0
0
0
1
0
1
0
0
1
1
AV
1
1
AV2
1
1
AV2
AV3
0
1
1
1
1
1
0
1
1
0
1
1
0
1
1
0
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