Sony PMC-DR45 Service Manual ▷ View online
– 21 –
Pin No.
Pin Name
I/O
Pin Description
1
G2
O
GRID2 signal output
2
G1
O
GRID1 signal output
3
NC
—
Not used. (Fixed at “H”.)
4
C-SCOR
I
SCOR signal input from the IC702 (CXD2587Q)
5
T-CNT (END)
I
T-COUNTER (T-END) signal input
6
REG.CHK
I
P-DOWN IN (B/UP) signal input
7
T-AMS
I
TAPE AMS IN signal input
8
RMC
I
Remote control signal input
9
T-MODE
I
T-MODE SW signal input
10
V-DA/LT
O
Serial data/latch signal output to the IC302 (BD3859FV)
11
R-CE
O
R-CE signal output
12
V-CLK
O
Serial clock signal output to the IC302 (BD3859FV)
13
R-CLK
O
R-CLOCK signal output
14
R-DATA
O
R-DATA signal output
15
R-COUNT
I
R-COUNT signal input
16
C-XLAT
O
Serial latch signal output to the IC702 (CXD2587Q)
17
C-CLK
O
Serial clock signal output to the IC702 (CXD2587Q)
18
C-DATA
O
Serial data signal output to the IC702 (CXD2587Q)
19
C-OPEN.I
I
CD open switch signal input
20
C-CLOSE.I
I
CD close switch signal input
21
C-SCLK
O
SCLK signal output to the IC702 (CXD2587Q)
22
RDS-CLK
I
Serial clock signal input (Not used in this set.)
23
RDS-DATA
I
Serial data signal input (Not used in this set.)
24
SD
I
LR signal detector terminal
25
C-SQCK
I
SUBQ clock signal input from the IC702 (CXD2587Q)
26
C-SQSO
I
SUBQ data signal input from the IC702 (CXD2587Q)
27
C-SENS
I
Sens signal input from the IC702 (CXD2587Q)
28
AVREF
—
A/D converter Vref pin
29
KEY1
I
Key signal input 1
30
KEY2
I
Key signal input 2
31
KEY3
I
Key signal input 3
32 – 34
F-CD
I
CD test mode pin
35
T-STAT
I/O
Tape status signal input/output
36
VERSION
I
Version read signal input
37
AVSS
—
Ground
38
RST
I
Reset signal input from the IC802 (PST9128-T)
39
EXTAL
I
Clock oscillation input (8 MHz)
40
X’TAL
O
Clock oscillation output (8 MHz)
41
GND
—
Ground
42
TX
O
Crystal connection for clock oscillation (32.768 kHz)
43
TEX
I
Crystal connection for clock oscillation (32.768 kHz)
44
VDD
—
Power supply pin
45
VFDP
—
Voltage for FDP
46
NC
—
Not used. (Open)
47
C-OPEN.O
O
CD open signal output
48
C-CLS.O
O
CD close signal output
49
SFT-CLK
O
Shift clock signal output
50
C-RST
O
Reset signal output to the IC702 (CXD2587Q)
6-1. IC PIN DESCRIPTIONS
• CONTROL BOARD IC801 CXP82832-028Q (SYSTEM CONTROL)
SECTION 6
DIAGRAMS
– 22 –
Pin No.
Pin Name
I/O
Pin Description
51
A-MUTE
O
System mute signal output
52
B-MUTE
O
Tuner mute signal output
53
C-MUTE
O
CD mute signal output
54
LINE-MUTE
O
Line out mute signal output
55
C-AGCCNT
O
CD AGC control signal output
56
T-REC
O
Tape REC signal output
57
T-BIAS
O
Tape bias signal output
58
T-SOL.
O
Tape solenoid signal output
59
T-MTR
O
Tape motor signal output
60
ISS1
O
ISS1 signal output
61
ISS2
O
ISS2 signal output
62
PWR-SAVE
O
Power save signal output
63
P-CON
O
Power control signal output
64
T-AMS.MUTE
O
Not used. (Open) Tape AMS mute signal output
65
LINE
O
Not used. (Open) Line out signal output
66
RDS-ON
O
RDS on signal output (Not used in this set.)
67
TAPE
O
Tape function signal output
68
TU
O
Tuner function signal output
69
CD
O
CD function signal output
70, 71
NC
—
Not used. (Open)
72 – 87
SEG16-1
O
Segment signal output
88
NC
—
Not used. (Open)
89
VDD
—
Power supply pin
90
NC
—
Not used. (Open)
91
G12
O
GRID 12 signal output
92
G11
O
GRID 11 signal output
93
G10
O
GRID 10 signal output
94
G9
O
GRID 9 signal output
95
G8
O
GRID 8 signal output
96
G7
O
GRID 7 signal output
97
G6
O
GRID 6 signal output
98
G5
O
GRID 5 signal output
99
G4
O
GRID 4 signal output
100
G3
O
GRID 3 signal output
– 23 –
– 24 –
6-2. CIRCUIT BOARDS LOCATION
– Main Section –
– Speaker (L) Section –
HEAD RELAY board
TC RF board
TC board
MAIN board
TUNER board
CD board
LINE board
H/P board
LOADING board
FRONT board
CONTROL board
TOP board
POWER board
SPEAKER board
PMC-DR45
6-3. BLOCK DIAGRAM — TUNER SECTION —
– 25 –
– 26 –
1
18
2 3 4
11 12
20
19
Signal path
: FM
: AM
R-ch : same as L-ch.
: FM
: AM
R-ch : same as L-ch.
CE
DI
CL
DO
AM IN
FM IN
XOUT
XIN
13
MO/ST
10
IF IN
LPF2/MO-ST
LPF1/BAND
ST-IND
OSC-OUT
7
BAND
8
ST-IND
LP-OUT
AM
OSC
AM
MIX
FM
MIX
FM
OSC
AM
RF-IN
RF-IN
FM
RF-IN
RF-IN
FM
RF-OUT
RF-OUT
X1
75kHz
PLL
IC2
14
17
13
18
16
15
11
12
19
20
22
4
6
7
10
2
21
24
T1
CF4
L2
L1
CT1
RA6V
RA6V
D4 D5
CT3
D3
T3
AM
FERRITE-ROD
ANTENNA
CT3,T3
AM
TRACKING
CT1,L1
FM
TRACKING
IF
BUFFER
AM
DET
FM
DET
IF CUT
AF
BUFFER
FM
MPX
MUTE
IF CUT
R-OUT
L-OUT
R-CH
RA6V
QUAD
FM/AM FRONT-END, IF DET,
FM STEREO DEMODULATOR
IC1
AM
FREQUENCY
COVERAGE
T4 RA6V
L4
CF2,3
RA6V
TUNER BOARD
04
RA6V
RA6V
FM OSC
AM OSC
MIX-OUT
AM
IF-IN
IF-IN
FM
IF-IN
IF-IN
IF-OUT
DET-OUT
MPX-IN
T2
L2
FM
FREQUENCY
COVERAGE
T1
AM IF
T2
FM IF
BPF
TM1
1
TAPE
SECTION
CONTROL BOARD (1/3)
MAIN
BOARD
(1/3)
BOARD
(1/3)
7
8
8
9
10
11
27
28
28
29
30
31
5
4
4
3
2
1
-1
AM
-2
EXT ANT
7
8
8
9
10
11
11
14
13
13
15
52 B-MUTE
R-CONT
R-CLK
R-DATA
R-CE
SYSTEM
CONTROL
IC801(1/3)
B-MUTE
R-CLK
R-CNT/ST
R-DATA
R-CE
B-MUTE
R-CLK
R-CONT
R-DATA
R-CE
6
5
5
R-CLK
RA6V
L CH
RADIO 6V
RADIO 6V
AM
LOOP
ANTENNA
CNP305
(1/2)
(1/2)
CNP307
(1/3)
CNP1
(1/2)
CNP1
(2/2)
CNP801
(1/3)
(1/3)
(Page 29)
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