Sony MHC-EX100AV / TA-EX100 Service Manual ▷ View online
— 5 —
2-3. MAIN BOARD
1
Connector (CN805)
2
Connector (CN509)
3
Connector (CN803)
4
Connector (CN508)
5
Two screws
(BVTP 3x8)
(BVTP 3x8)
6
AMP board
7
Connector (CN506)
8
Connector (CN903)
9
Connector
(CN503)
(CN503)
0
Connector
(CN993)
(CN993)
!¡
Screw
(BVTP 3x8)
(BVTP 3x8)
!™
Three screws
(BVTP 3x8)
(BVTP 3x8)
!£
Four screws
(BVTP 3x8)
(BVTP 3x8)
!¢
Remove the main board
direction of arrow.
direction of arrow.
2-4. BACK PANEL ASSEMBLY
1
Connector
(CN901)
(CN901)
2
Connector
(CN991)
(CN991)
3
Connector
(CN992)
(CN992)
4
Three screws
(BVTP 3x8)
(BVTP 3x8)
5
Back panel assembly
Note for installation
— 6 —
3-1. CIRCUIT BOARDS LOCATION
SECTION 3
DIAGRAMS
PANEL board
HP/MIC board
VOL board
MAIN board
SPEAKER board
COVER board
PRIMARY board
AUDIO board
DSP board
POWER AMPLIFIER board
REG board
SECONDARY board
— 7 —
3-2. IC PIN FUNCTION
• IC601 SYSTEM CONTROL (HD6433927B97F)
—
I
—
—
—
—
—
I
O
I
I
O
O
O
O
O
O
O
O
—
—
I
I
O
—
O
O
O
—
O
—
—
O
O
O
O
O
O
O
O
VOLUME IN
KEY 0 to KEY 2
AVss
TEST
X2
X1
Vss
OSC 1
OSC 2
RESET
NMI
POWER
SP RELAY
PROLOGIC RELAY
DIRECT
VOL-UP
VOL-DOWN
LINE MUTE
–20 dB MUTE
—
—
SIRCS
AUB IN
AUB OUT
—
STB
CLK
DATA
—
MIC IN
KARAOKE PON
—
A FUNC 0
A FUNC 1
A FUNC 2
V FUNC 0
V FUNC 1
2DB
4DB
8DB
Not used. (Ground)
Key matrix input.
Ground
Ground
Not used. (open)
+5V power supply.
Ground
Clock (10 MHz).
System reset input.
AC OFF detect.
Power relay output.
Speaker relay output. (power ON/OFF)
Speaker relay output. (PROLOGIC ON/OFF)
Speaker relay. (DIRECT)
MIC VOL up/down output.
LINE mute output. (power OFF “High”)
–20 dB mute output.
Not used. (open)
Not used. (Ground)
SIRCS signal input
Audio bus input.
Audio bus output.
Not used. (Ground)
LED strobe output.
LED clock output.
LED serial data output.
Not used. (Ground)
Microphone detect control. (mic on “Low”)
Not used. (Ground)
Not used. (Ground)
Audio function control output.
1
2 to 4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27 to 31
32
33
34
35 to 38
39
40
41 to 46
47
48
49
50
51
52
53
54
Pin Name
I/O
Pin No.
Function
Video function control output.
ATT control.
— 8 —
—
O
O
O
O
O
I
O
—
O
O
I
O
O
O
O
O
—
—
I
I
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73 to 78
79
80
Not used. (Ground)
FL clear output. IC701, 702 control.
FL data output. IC701, 702 control.
FL latch output. IC701, 702 control.
FL clock output. IC701, 702 control.
DSP data output. IC202 control.
DSP data input. IC202 control.
DSP clock output. IC202 control.
+5V power supply.
DSP latch output.
DSP test data output.
READY signal input from DSP.
DA/AD/DSP IC initial output.
DA ATT output.
DA clock output.
DA rear/center latch output.
DA front latch output.
+5V power supply.
Not used. (Ground)
JOG A input.
JOG B input.
—
CL
DATA
LATCH
CLK
DATA OUT
DATA IN
CLK
Vcc
LATCH
NSQCT
READY
INIT
ATT
CLK
DR LATCH
DF LATCH
AVcc
—
JOG 1
JOG 2
• Abbreviation
FL : Fluorescent Indicator Tube
FL : Fluorescent Indicator Tube
I/O
Function
Pin No.
Pin Name
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