Sony CHC-P33D / HCD-H33D Service Manual ▷ View online
– 17 –
6-1.
IC PIN FUNCTION DESCRIPTION
MAIN BOARD
IC101 TMP87CP64YF-6396 (MASTER CONTROL)
SECTION 6
DIAGRAMS
Pin No.
Pin Name
I/O
Function
1
Vss
—
Ground
2
X OUT
O
Main system clock (10 MHz)
3
X IN
I
4
RESET
I
Reset signal input terminal
5
X OUT
O
Sub system clock (32 kHz)
6
X IN
I
7
GND <TEST>
—
Ground
8
BACK UP
I
BACK-UP mode input terminal
9
COUNT. SW
—
Not used (Connected to Ground)
10
INIT. SW
—
Not used (Connected to Ground)
11
DISC SENS
—
Not used (Connected to Ground)
12
MID SENS
—
Not used (Connected to Ground)
13
CD-XRST
O
CD Reset output “L”: RESET
14
POWER
O
Power on output “L”: ON
15
MUTE
O
Mute output “L”: MUTE
16
MPX
—
Not used (Open)
17
KEYCON. LATCH
O
HIGH LED drive signal output
18
VOL. LATCH
O
Latch output to volume control (TC9210)
19
ST MUTE
O
Mute signal output for tuner
20
ST FM
—
Not used (Open)
21
FUNC. A
O
22
FUNC. B
O
Function Select
23
FUNC. C
O
24
GEQ. LATCH
O
Latch output to gray control (M6243)
25
RDS-INT
I
Not used (Pull up)
26
SCOR <DSP>
I
Sub code sync SO+SI detection input from DSP (CXD2507AQ)
27
CIN/SENS
I
SENS input from DSP (CXD2507AQ)
28
CD. POWER
O
CD Power on output “H”: ON
29
CDG_LATCH
—
Not used (Open)
30
DBFB 1-2
O
MID LED drive signal output
31
MUTE
O
LOW LED drive signal output
32
CE
O
Chip enable output to tuner PLL IC (LC72130)
33
STEREO
I
FM/AM Stereo identification “L”: STEREO
34
TUNED
I
FM/AM Tuning identification “L”: TUNING
35
SQ-RDS-CLK
O
Sub-code Q data scanning clock output to DSP (CXD2507AQ)
36
SQ-RDS. D1
I
Sub-code Q data input from DSP (CXD2507AQ)
37
RDS-RESET
—
Not used (OPEN)
38
CLK
O
System clock output
39
D. IN
I
Serial data input from tuner
40
D. OUT
O
Serial data (COMN) output
FUNCTION FUNC A FUNC B FUNC C
ST
L
L
H
CD
L
H
H
TC
H
L
H
MD
H
H
L
– 18 –
41
TABLE SENS
I
WOOFER LEVEL switch signal input
42
REQ. GM
I
Data transmission request input from system control
43
REQ. MG
O
Not used (Pull up)
44
CLK. MG
O
Clock output for communications with system control
45
D. GM
I
Serial data input from system control
46
D. MG
O
Serial data output to system control
47
RDY
I/O
System control Ready signal input/output “L”: READY
48
VAREF
I
Analog reference voltage input (+5 V)
49
VASS
—
Analog Ground
50
Vss
—
Ground
51
VDD
—
Power supply (+5 V)
52
URGENT. SIG
I
Not used (Pull up)
53
URGENT. STBY
I
Not used (Open)
54
BUG Y/N
—
Not used (Pull up)
55
ADJUSTOR
—
Not used (Pull up)
56
ADJUST 2
—
Not used (Pull up)
57
MAGIC SPEED
—
Not used (Pull up)
58
SPEC
I
Not used (Pull up)
59
DIST
I
Model Selection input (A/D converter)
60
SPEED
—
Not used (Pull up)
61
BREAK
—
Not used (Pull up)
62
B-PLAY
I
Deck-B PLAY switch input “H”: PLAY
63
B-SHUT
I
Deck-B Reel table signal input
64
B-HALF
I
Deck-B Record prevention claw A, B detection input
65
A-SHUT
I
Deck-A Reel table signal input
66
A-PLAY
I
Deck-A PLAY Switch input “H”: PLAY
67
A-HALF
I
Deck-A HALF Switch input
68
CAPM H/L
O
Capstan motor speed selector “H”: Normal speed “L”: High speed
69
CAPM ON/OFF
O
Capstan motor ON/OFF “L”: ON
70
TRIG H/L
O
71
B TRG
O
Trigger motor control output
72
A TRG
O
73
RELAY
O
Control output to REC/PB select switch (IC602) “H”: REC
74
A/B
O
Dolby IC PB input Deck A/B select output “L”: A, “H”: B
75
NORM/HIGH
O
EQ Select switch output for normal/high speed “H”: High speed
76
BIAS ON/OFF
O
BIAS Oscillation ON/OFF control “H”: High speed
77
RM ON/OFF
O
REC Mute output “L”: MUTE
78
REC/PB
O
Dolby IC REC/PLAY Select output “H”: REC
79
NR
O
Dolby ON/OFF Control output “H”: ON
80
LM
O
Line Mute output “L”: MUTE
81
PASS
O
PASS Amplifier switch output to Dolby IC (IC401)
82
CDG_MUTE
O
Woofer level control signal output
83
UP MOTOR
O
84
DOWN MOTOR
O
Not used
85
TABLE R
—
Not used (Open)
Pin No.
Pin Name
I/O
Function
– 19 –
86
TABLE L
—
Not used (Open)
87
LOAD OUT
O
Loading motor (M903) Load out output
88
LOAD IN
O
Loading motor (M903) Load in output
89
DF-LATCH
O
Latch output to digital filter (PCM1710U)
90
XLT
O
Serial data latch output to DSP (CDX2507AQ)
91
FOCUS. SW
O
High-region gain down output to focus servo (CXA1782BQ)
92
HIGH DUBB
—
Not used (Pull up)
93
TEST 1
I
Test land (Pull up)
94
OUT. SW
I
CD Tray output detection input “L”: OUT
95
IN. SW
I
CD Tray input detection input
96
UP. SW
—
Not used (connected to ground)
97
PANEL. SW
—
Not used (connected to ground)
98
CLOSE. SW
—
Not used (connected to ground)
99
OPEN. SW
—
Not used (connected to ground)
100
VDD
—
Power supply (+5 V)
Pin No.
Pin Name
I/O
Function
– 20 –
Pin No.
Pin Name
I/O
Function
1
ENC
I
Volume encoder input terminal
2
SIRCS
I
Remote commander signal input
3
REQ. MG
I
Data transmission request input from master control Not used (Pull up)
4
REQ. GM
O
Data transmission request output to master control
5-9
LED
O
LED drive signal Not used (Open)
10
RDY
I/O
Master control Ready signal input/output “L”: Ready
11
SCK. IN
I
Clock output for communications with master control
12
SD. IN
I
Serial data input from master control
13
SD. OUT
O
Serial data output to master control
14
LED_PAUSE
O
PAUSE LED Output
15
LED_CD
O
CD LED Output
16
LED_TUNER/BAND
O
TUNER/BAND LED output
17
LED_TAPE
O
TAPE LED Output
18
LED_FWD. STOP. FF & REW
O
(, p, 0, ) LED drive signal output
19
LED_DECK_A/B & REV
O
9, DECK SELECT LED
20
LED_A
O
A LED Output
21
LED_B
O
B LED Output
22
KEY1
I
Not used (Pull up)
23
KEY2
I
24
KEY3
I
Key matrix input (A/D converter)
25
KEY4
I
26-29
BPF1-4
I
Not used (Connected to Ground)
30
RST
I
Reset signal input
31
EXTAL
I
System clock (4 MHz)
32
XTAL
O
33
Vss
—
Ground
34-62
P29-P1
O
FL Drive
63-69
7G-1G
O
FL grid signal output
70
NC
—
Not used (Open)
71
VFDP
—
LED Driver –25 V power supply
72
VDD
—
Power supply (+5 V)
73, 74
KEY
—
Not used (Pull up)
75
VDD (TEST)
—
Power supply (+5 V)
76
LED_TUNER_COMMON
O
TUNING MODE, STEREO/MONO, TUNER MEMORY LED drive signal output
77
LED_ENTER/NEXT
O
ENTER/NEXT LED drive signal output
78
ENC B
I
AMS encoder signal input
79
ENC A
I
80
ENC
—
Not used (Pull up)
PANEL BOARD
IC501 CXP82612-016Q (DISPLAY CONTROL)
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