Read Sony MHC-EX66 / TC-EX66 / TC-EX660 Service Manual online
– 25 –
1
PULSE
I
Pulse signal input
2
NO-USE
–
Not used (Fixed at “L”)
3
METER-L
I
Digital peak level meter signal input (L-ch)
4
METER-R
I
Digital peak level meter signal input (R-ch)
5
AD-GND
–
Ground for A/D converter
6
TEST
I
Not used (Fixed at “L”)
7
NO-USE
–
Not-used (Open)
8
NO-USE
–
Not-used (Fixed at “L”)
9
SYS-GND
–
Ground for system
10
OSC-OUT
O
System clock output (4 MHz)
11
OSC-IN
I
System clock input (4 MHz)
12
RESET
I
Reset signal input
13
AUB-IN
I
Audio bus input
14
AUB-OUT
O
Audio bus output
15
NO-USE
–
Not used (Fixed at “L”)
16
NO-USE
–
Not used (Fixed at “L”)
17
NO-USE
–
Not used (Fixed at “L”)
18
NO-USE
–
Not used (Fixed at “L”)
19
NO-USE
–
Not used (Fixed at “L”)
20
DOLBY C/B
O
DOLBY B/C select signal output “L”: DOLBY B, “H”: DOLBY C
21
DOLBY ON/OFF
O
DOLBY on/off select signal output “L”: DOLBY off, “H”: DOLBY on
22
CDSYNC-LED
O
Control output to CD SYNC LED (D851)
23
SEG17
O
Segment signal output to fluorescent indicator tube (FLT851)
24
SEG16
O
Segment signal output to fluorescent indicator tube (FLT851)
25
SEG15
O
Segment signal output to fluorescent indicator tube (FLT851)
26
SEG14
O
Segment signal output to fluorescent indicator tube (FLT851)
27
SEG13
O
Segment signal output to fluorescent indicator tube (FLT851)
28
SEG12
O
Segment signal output to fluorescent indicator tube (FLT851)
29
SEG11
O
Segment signal output to fluorescent indicator tube (FLT851)
30
SEG10
O
Segment signal output to fluorescent indicator tube (FLT851)
31
SEG9
O
Segment signal output to fluorescent indicator tube (FLT851)
32
SEG8
O
Segment signal output to fluorescent indicator tube (FLT851)
33
SEG7
O
Segment signal output to fluorescent indicator tube (FLT851)
34
SEG6
O
Segment signal output to fluorescent indicator tube (FLT851)
35
SEG5
O
Segment signal output to fluorescent indicator tube (FLT851)
36
SEG4
O
Segment signal output to fluorescent indicator tube (FLT851)
37
SEG3
O
Segment signal output to fluorescent indicator tube (FLT851)
38
SEG2
O
Segment signal output to fluorescent indicator tube (FLT851)
39
SEG1
O
Segment signal output to fluorescent indicator tube (FLT851)
40
FL-GND
I
Ground for fluorescent indicator tube (Fixed at “L” (–20 V))
41
GRID 1
O
Grid signal output to fluorescent indicator tube (FLT851)
42
GRID 2
O
Grid signal output to fluorescent indicator tube (FLT851)
43
GRID 3
O
Grid signal output to fluorescent indicator tube (FLT851)
44
GRID 4
O
Grid signal output to fluorescent indicator tube (FLT851)
45
GRID 5
O
Grid signal output to fluorescent indicator tube (FLT851)
5-3.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC801
HD6433724E66F (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Function
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