Index DW9937S, Service Manual

Page: 31 / 112

MITSUMI
I
2
C BUS Control 5-Input 2-Output AV Switch MM1313
Switch Control Table
b6 b5 b4 b3 V
OUT
1 Y
OUT
1 C
OUT
1
0 0 0 0 Mute Mute Mute
0 0 0 1 MTV-V Y
IN
1 C
IN
1
0 0 1 0 V1-V Y
IN
1 C
IN
1
0 0 1 1 V2-V Y
IN
1 C
IN
1
0 1 0 0 V3-V Y
IN
1 C
IN
1
0 1 0 1 STV-V Y
IN
1 C
IN
1
0 1
1 0
Mute Mute Mute
1 1
1 0 0 0 Mute Mute Mute
1 0 0 1 MTV-V Y
IN
1 C
IN
1
1 0 1 0 V1-Y+C V1-Y V1-C
1 0 1 1 V2-Y+C V2-Y V2-C
1 1 0 0 V3-V Y
IN
1 C
IN
1
1 1 0 1 STV-V Y
IN
1 C
IN
1
1 1
1 0
Mute Mute Mute
1 1
Mute pin b2 b1 b0 L
OUT
1 R
OUT
1
0 0 0 Mute Mute
0 0 1 MTV-L MTV-R
0 1 0 V1-L V1-R
1.5V or less
0 1 1 V2-L V2-R
(OPEN)
1 0 0 V3-L V3-R
1 0 1 STV-L STV-R
1
1 0
Mute Mute
1 1
3.0V or more
- - - Mute Mute
Mute pin b2 b1 b0 L
OUT
2 R
OUT
2
0 0 0 Mute Mute
0 0 1 MTV-L MTV-R
0 1 0 V1-L V1-R
1.5V or less
0 1 1 V2-L V2-R
(OPEN)
1 0 0 V3-L V3-R
1 0 1 STV-L STV-R
1
1 0
Mute Mute
1 1
3.0V or more
- - - Mute Mute
b6 b5 b4 b3 V
OUT
2
0 0 0 0 Mute
0 0 0 1 MTV-V
0 0 1 0 V1-V
0 0 1 1 V2-V
0 1 0 0 V3-V
0 1 0 1 STV-V
0 1
1 0
Mute
1 1
1 0 0 0 Mute
1 0 0 1 MTV-V
1 0 1 0 V1-Y+C
1 0 1 1 V2-Y+C
1 1 0 0 V3-V
1 1 0 1 STV-V
1 1
1 0
Mute
1 1
b7 Output gain
0
-6dB output
1
0dB output
1. Video Output 1
3. Audio Output 1
5. Audio Output 2
4. Audio Output 1 Gain
Switching
2. Video Output 2
29