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Circuit Descriptions, List of Abbreviations, and IC Data Sheets
9.5.3
Light Sensor
+9V
2101
10uF
7000-1
3110
2102
3
330K
220n
+
2
-
6104
3115
330K
Figure 9-47 Light Sensor
9.5.4
I2C interconnect
90
TXD
89
RXD
88
SDA-F
87
SCL-F
3709
7001
100
OTC
4
7713
PICNIC
SN-DA
1
26
7718
FALCONIC
1020
48
86
SDA-S
85
49
SCL-S
The OTC communicates with the set via three I2C busses.
SDA-F, Fast bus communicates with the PICNIC, HIP, and
MSP (Audio Processor). The SN-DA line from the PICNIC
communicates with the FALCONIC and EAGLE. The SDA-S
Slow bus communicates with the Tuner, AV Switch, and
ComPair connector on the SSM. It also communicates with the
PIP-DW board.
The TXD and RXD lines communicate with the microprocessor
on the ACS module. The microprocessor on the ACS
communicates with the GDE NVM, Convergence Processor,
and the HOP panel.
3111
4.7K
2104
2.2uF
3112
8
3.3K
3113
1
5
8
+
4.7K
7
LIGHT_SENSOR
4
6
-
4
3116
3118
3.3K
3117
1K
7000-2
1K
E_15000_112.eps
SSB
3655
3710
3376
3656
3377
100
100
100
100
100
5
46
47
1
2
7323
7651
HIP
MSP
SN-CL
2
9741-C
10
9741-D
27
32
26
10
7724
EAGLE
3115
3114
47
47
4
5
1
2
3
1203
TUNER
COMPAIR
Figure 9-48 I2C interconnect
The Light Sensor, 6104, is amplified by two op amps in 7000.
This circuit senses the ambient light and outputs a voltage on
pin 7 of 7000. This voltage is fed to the OTC, which makes
changes in the picture brightness to compensate for changes
in the ambient light.
181004
ACS
1401
1043
1000
2
1
1
7100
4
2
ACS
2
MICRO
83
84
1000
4
6
SDA-C
SCL-C
SSM
PIP/DW PANEL
0201
1201
1
1
2
2
3131
3130
220
220
32
33
7017
AV SW
DPTV465
7022
7002
CONV
PROC
7021
7020
28
SDA-B
7024
7023
13
SCL-B
7000
GDE
NVM
HOP
1950
3955
100
5
7800
I/O
4
3956
100
3965
100
7600
HOP
3966
100
3432
3268
3431
3267
3330
7832
7829
100
100
100
100
100
7403
7801
7201
7301
I/O EXP
PIP/DW
TUNER
SIGNAL PRO
9.
EN 101
3329
3509
3510
100
100
100
7403
I/O EXP
E_15000_113.eps
181004
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