Ic Pin Function Description - Sony STR-DE875 Service Manual

Fm stereo fm-am receiver
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3-21. IC PIN FUNCTION DESCRIPTION

• IC1101 MB91154PMT2-G-101-E1 (SYSTEM CONTROLLER) (MAIN BOARD)
Pin No.
Pin Name
1
2ND_RY
2
2ND_LAT
3
2ND_CLK
4
2ND_DATA
5
LED_DRV_CL
6
LED_DRV_CE
7
CURSOR_JOG_3A
8
CURSOR_JOG_3B
9
VSS
10
FUNCTION_JOG_1A
11
FUNCTION_JOG_1B
12
VOL_JOG_2B
13
VOL_JOG_2A
14
SPK_SEL
15
HP_RY
16
SP_A_RY
17
CENTER_RY
18
REAR_RY
19
WOOFER_RY
20
PROTECTOR
21
HP_CTRL
22
PW_RY
23
TUNER_STEREO
24
TUNER_AUTO_STOP
25
TUNER_MUTE
26
VSS
27
VCC
28
TUNER_DO
29
TUNER_SERIAL_CLK
30
T.DATA
31
T.LAT
32
RDS_DATA
33
V.SW1
34
V.SW2
35
V.SW3
36
V.SW4
37
P61
38
P62
39
P63
40
P64/A20
41
SUB-T
42
TC74HC153_A
43
DIR XMODE
44
VSS
45
DIR CKSEL1
46
DIR CLK
47
DSP1.HDOUT1
48
DSP1.PLL1
49
DSP2.GP3
50
DSP2.EXLOCK
I/O
O
2nd audio relay control signal output
O
2nd audio switching IC latch signal output
O
Serial command clock signal output
O
Serial command data signal output
O
LED driver clear signal output
O
LED driver latch signal output
I
Jog dial signal input from the rotary encoder
I
Jog dial signal input from the rotary encoder
Ground
I
Jog dial signal input from the rotary encoder
I
Jog dial signal input from the rotary encoder
I
Volume signal input from the rotary encoder
I
Volume signal input from the rotary encoder
I
Speaker ON/OFF switch signal input
O
Headphone relay control signal output
O
Front speaker relay control signal output
O
Center speaker relay control signal output
O
Rear speaker relay control signal output
O
Sub woofer relay control signal output
I
Protector status detect signal input
I
Headphone switch detect signal input
O
Power relay control signal output
I
Stereo tuning signal input from the tuner
I
Tuner auto stop signal input from the tuner
O
Muting signal output to the tuner
Ground
Power supply
I
Frequency data signal input from the tuner
O
Clock signal output to the tuner
O
Data signal output to the tuner
O
Latch signal output to the tuner
I
RDS data signal input from the tuner
O
Video switch 1 control signal output
O
Video switch 2 control signal output
O
Video switch 3 control signal output
O
Video switch 4 control signal output
Connected to ground
Connected to ground
Connected to ground
Connected to ground
O
Sub-trans control signal output
O
Digital select (IC TC74HC153) control signal output
O
XMODE signal output to DIR
Ground
O
CKSEL1 signal output to DIR
O
Clock signal output to DIR
I
HDOUT1 signal input from DSP1
I
PLL1 signal input from DSP1
I
GP3 signal input from DSP2
O
EXLOCK signal output to DSP2
STR-DE875/DE975
Description
33

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