Sony HCD-N455KW / LBT-N455KRW Service Manual ▷ View online
— 72 —
Pin Name
V
DD
LED8/
SUPER TWEETER ON
LED7, 6
LED5–1
RESET
X2
X1
IC (Vpp)
XT2
JOG B
V
DD
LED10, 9
KEY SEL
VOL B
REQ. GM
CLK MG
DATA GM
DATA MG
AVss
SPEANA 4–1
KEY 4–1
AV
DD
AV
REF
VOL A
JOG A
RDY MG
SIRCS
Vss
DOR SW
LED SELECT
LED13–11
V
DD
LEDS7, 6
LEDS5, 4
LEDS3–1
SEG32–8
V. LOAD
SEG7–1
GR14–1
Pin No.
1
2
3, 4
5–9
10
11
12
13
14
15
16
17, 18
19
20
21
22
23
24
25
26–29
30–33
34
35
36
37
38
39
40
41
42
43–45
46
47, 48
49, 50
51–53
54–78
79
80–86
87–100
I/O
—
O
O
O
I
O
I
—
I
I
—
O
O
I
O
I
O
I
—
I
I
—
—
I
I
I
I
—
I
O
O
—
O
O
O
O
—
O
O
Function
+5V
LED drive signal output./Super tweeter ON/OFF control output.
Not used.
LED drive signal output.
Reset signal input.
X’tal (4 MHz).
Ground
Not used.
AMS encoder signal input.
+5V
LED drive signal output.
Key select control.
Volume encoder signal input.
Reguest signal from/to master control.
Serial clock input.
Serial data output.
Serial data input.
Ground
Spectram analizer signal input.
Key matrix input.
+5V
Volume encoder signal input.
AMS encoder signal input.
Ready signal from master control.
SIRCS signal input.
Ground
CD door open detection input.
LED select signal output.
LED drive signal output.
+5V
Not used.
LED drive signal output.
LED drive signal output.
FL segment signal output.
–25V for FL
FL segment signal output.
FL grid signal output.
6-22. IC PIN FUNCTIONS
• IC501 DISPLAY CONTROL (ASD0204GF-012-3BA)/PANEL board
• Abbreviation
FL : Fluorescent Indicator Tube
— 73 —
Pin Name
Vss
XOUT
XIN
RESET
XOUT
XIN
GND (test)
AC CUT
SUPER WOOFER ON
ST-MUTE ON
180-A-PLAY
180-B-PLAY
180-B-REC
CLK CHK
UP-SW
IN-SW
ENCODER-0
ENCODER-1
ENCODER-2
OUT SW OPEN
LOAD IN
LOAD OUT
TBL-L
TBL-R
SCOR
TBL-SENS
RDS INT
RDS DATA
DF LAT
SENS
XRST
MG-RDY
ADJ
GM-REQ
MG-CLK
GM-DATA
MG-DATA
CD-CLK
ADJ-2
CD-DATA
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
I/O
—
O
I
I
O
I
—
I
O
O
I
I
I
I
I
I
I
I
I
I
O
O
O
O
I
I
I
I
O
I
O
I
I
I
O
I
O
O
I
O
Function
Ground
X’tal (10 MHz).
Reset signal input.
X’tal for clock (32.768 kHz)
Ground
Back up signal input.
Not used. (Connected to ground)
Mute signal output for tuner.
Tape detection signal input. (Not used) (Connected to ground)
Not used.
Disc table up detect. (Not used) (Open)
Not used.
Loading motor control signal output.
Table motor control signal output.
Sub-code sync signal input.
CD Table sensor signal input.
RDS data start input. (Connected to ground)
RDS data output. (Connected to ground)
Latch signal for digital filter.
Table sence signal input.
Reset signal output for CD.
RDY signal from graphic control.
Test mode input.
Request signal from graphic control.
Clock signal to graphic control.
Data input from graphic control.
Data output to graphic control.
Clock output. Serial bus line.
Test mode input.
Data output. Serial bus line.
• IC701 MASTER CONTROL (TMP87CS64YF-6521)
— 74 —
Pin Name
AUB IN
AUB OUT
FOCUS SW
SQ-CLK
SQ-DATA
X-LAT
TEST
VAREF
VAss
Vss
V
DD
SPEC
DESTINATION
DISC SENS
TC RELAY
A-SHUT
B-SHUT
B-HALF
A-HALF
220-A-PLAY
220-B-PLAY
62427 LAT
K-CON-LAT
VOL LAT (AV)
REAR SP RELAY B
FRONT SP RELAY C
POWER ON
CD POWER
PROLOG LAT
MUTE
COM CLK
COM DIN
COM DATA
K CON ON
LIDDED LED
PROLOG ON
DBFB-HIGH
URG STB STDBY
URG STB ON
TC A
Pin No.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
Function
Audio bus in/output. (Open)
Focus switching signal output,.
Subcode Q data read clock output.
Subcode Q data input.
Latch signal digital signal processor.
Test land.
Analog reference voltage input.
Ground
+5V
Destination detection setting input.
Disc present/absent sensor input
REC/PB select signal output.
Control signal input from deck.
PLL latch output.
Latch signal for KEY CON.
Latch signal for electrical volume. (Not used) (Open)
Not used. (Open)
Power on signal output.
CD power control signal output.
Not used. (Open)
Mute signal for AMP.
PLL clock output.
PLL data input.
PLL data output.
Control signal output for KEY CON.
Disc No. LED drive signal output. (Not used) (Open)
PRO LOGIC control output.
DBFB switching signal output.
Not used. (Open)
Deck A, B select output.
I/O
I
O
O
O
I
O
I
I
—
—
—
I
I
I
O
I
I
I
I
I
I
O
O
O
O
O
O
O
O
O
O
I
O
O
O
O
O
I
O
O
— 75 —
Pin Name
NORM
BIAS OFF
REC MUTE
NR OFF
PB
PASS. AMP/DOLBY
LINE MUTE ON
CAP. M-HIGH
A-TRG
B-TRG
TRG LOW
CAP M ON
STEREO
TUNED
ST-CE
DELAY SEL MIC
DELAY ON
DELAY LEVEL A
DELAY LEVEL B
V
DD
Pin No.
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
O
O
O
O
O
—
Function
NORMAL/HIGH control signal output.
Bias oscillation output.
Mute output.
Dolby ON/OFF signal output.
REC/PB control signal output.
Dolby switching signal output.
Mute signal output for deck.
Capstan motor control signal output.
Trigger motor control signal output.
Trigger motor high/low control signal output.
Capstan motor ON/OFF control signal output.
Stereo detection signal from tuner.
Tuned detection signal from tuner.
Latch signal output for tuner.
Not used. (Connected to ground)
+5V
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