Sony PMC-D307L / PMC-D40L Service Manual ▷ View online
– 23 –
6-4. IC PIN DESCRIPTION
• IC801 CXP83120A-022Q (SYSTEM CONTROL, LCD DRIVE) (EXCEPT East European Model)
• IC801 CXP83120A-031Q (SYSTEM CONTROL, LCD DRIVE) (East European Model)
• IC801 CXP83120A-031Q (SYSTEM CONTROL, LCD DRIVE) (East European Model)
Pin No.
Pin Name
I/O
Pin Description
1
AC CHK
I
AC check input
2
C-SCOR
I
CD-SCOR input
3
RMC
I
Remote commander input
4
C-XRST
O
CD system reset output
5
C-XLAT
O
CD DSP (IC702) command latch output
6
C-DAT
O
CD DSP (IC702) command data output
7
C-CLK
O
Clock output for CD DSP (IC702) command
8
C-DOOR
I
Open/close detection input (“L”: close, “H”: open)
9
328/332
I
328/332 select input (Fixed at “H”.)
10
C-SENC
I
CD-SENS input
11
C-SQCK
O
Clock output for CD SUBQ
12
C-SQSO
I
CD SUBQ input
13
T-BIAS
I
Tape REC BIAS input
14
—
—
Not used (Open)
15
T-REC
I
Tape REC input
16
T-SOL
O
Plunger control output
17
T-MODE
O
HEAD switching output
18
T-AMS
I
AMS sensitivity switching
19
T-MCON
O
Motor control output (“H”: Motor ON)
20
P-CON
O
Power on/off control output
21
V-CLK
O
Volume clock output
22
V-DAT
O
Volume data output
23
V-CE
O
Electrical volume (IC302) chip enable output
24
R-ST
I
Stereo detection input
25
R-COUNT
I
Tuner PLL IC count input
26
R-DAT
O
Tuner PLL IC data output
27
R-CLK
O
Tuner PLL IC clock output
28
R-CE
O
Tuner PLL IC chip enable output
29
9K/10K
I
9K/10K select input (Not used.)
30
T-STAT
I
Tape detection input
31 – 34
KEY-0 – 3
I
Key return signal input
35
INIT
O
Initial setting output (East European model)
36
SIMUKE
I
Destination setting terminal
37
SFC
O
Shift clock ON/OFF out
38
RST
I
Reset input
39
EXTAL1
I
Clock oscillation input (4.19 MHz)
40
XTAL1
O
Clock oscillation output (4.19 MHz)
41
VSS
—
Ground (for A/D converter)
42
XTAL2
O
Clock oscillation output (Open)
43
EXTAL2
I
Clock oscillation output (Fixed at “L”.)
44
AVREF
I
Reference voltage input (for A/D converter)
45
AVSS
—
Ground (for A/D converter)
46
VL
O
LCD bias resistor current control terminal (Cut off at standby)
47 – 49
VLC3 – 1
—
LCD bias power supply terminal
50 – 53
COM0 – 3
O
LCD common signal output terminal
54 – 77
SEG0 – 23
O
LCD segment signal output terminal
78 – 84
NC
—
Not used. (Open)
85 – 87
—
—
Not used. (Open)
88
BL-CONT
O
LCD Back light control output
89
VDD
—
Power supply (+5 V)
– 24 –
Pin No.
Pin Name
I/O
Pin Description
90
NC
—
Connected to the power supply.
91
VSS
—
Ground
92
TX
O
Crystal connection for clock oscillation. (32.768 kHz)
93
TEX
I
Crystal connection for clock oscillation. (32.768 kHz)
94
C-MUTE
O
Mute output for CD.
95
B-MUTE
O
Mute output for Tuner.
96
A-MUTE
O
Mute output for Audio.
97
ISS1
I
ISS1 switch input
98
ISS2
I
ISS2 switch input
99
T-END
I
Tape end detection input
100
NC
—
Not used. (Open)
– 25 –
6-5. CIRCUIT BOARDS LOCATION
SW (B) board
CONTROL board
HEADPHONE board
LAMP board
SW (A) board
HEAD board
LINE board
SW board
AUDIO board
TUNER board
CD MOTOR board
CD board
TERMINAL board
JACK board
AMPLIFIER board
POWER board
– Main Section –
– Speaker (L) Section –
– 29 –
– 30 –
– 31 –
6-7. SCHEMATIC DIAGRAM — TUNER SECTION —
PMC-D307L
• IC Block Diagrams
IC1 TA2008AN
IC2 BU2615S
18
13
14
19
20
21
10
11
12
9
8
7
6
5
4
3
1
2
22
23
24
AM
RF
FM
RF
BUFF
BUFF
IF
BUFF
AF
BUFF
AM
IF
FM
IF
FM
OSC
AM
MIX
AM
DET
AGC
FM
MIX
AM
OSC
17
16
1/8DIV
LEVEL
DET
FM
DET
ST
DET
MUTE
FM MPX
15
AM/FM
ST/MONO
SW
2
19
11
18
17
20
13
1
16
15
3
4
5
6
7
PRESCALER
MAIN COUNT
REFERENCE DIVIDER
I/O
CTL
8
14
SHIFT REGISTER LATCH
PHASE
DET
BUFFER
IF COUNT
CTL
20BIT COUNT
12
10
9
ULLOCK
P5
PD1
PD2/P5
VDD1
VDD2
VSS
VSS
IF IN
P3
P4
P6
P2
P1
P0
CD
DA
CK
CE
AMIN
FMIN
XOUT
XIN
1.4Vp-p
2.2
µ
s
• Waveforms
1
2
IC1
!£
(VCO)
IC2
1
(X OUT)
1.4Vp-p
75kHz
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : MW
<< >> : LW
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: FM
f
: MW/LW
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