Sony CMT-ED1 / HCD-ED1 / HCD-ED1A (serv.man2) Service Manual ▷ View online
– 13 –
SECTION 5
DIAGRAMS
5-1. CIRCUIT BOARDS LOCATION
FUN/SURROUND board
VOL/POWER board
TAPE PREAMP board
BD board
CD DOOR SW board
RELAY board
CONTROL BLK ASSY
THIS BLOCK IS SUPPLIED
AS THE ASSEMBLED BLOCK
AS THE ASSEMBLED BLOCK
DISPLAY board
FM/AM TUNER
THIS BLOCK IS SUPPLIED
AS THE ASSEMBLED BLOCK
AS THE ASSEMBLED BLOCK
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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
41
42
43
44
45
46
47
48
49
50
GND
XOUT
XIN
RESET
TUNED
STEREO
TEST
POWDEC
REMOTE
PLL CE
PLL CLK
PLL DATAI
PLL DATAO
SERVO CK
SUB Q
DATA
MUTE D
CDPOWER
CLOSESW
FSW
SENSE
MLAT
XLAT
XRST
SCOR
PLAYSW
MTRSNS
TAPEIN
MOTOR
SOL
AMS
PLYMUTE
REC/PB
DOLBYNR
RECMUTE
BIAS
REC LED
CD SYNC
WIDE
KEYIO 1
KEYIO 2
BANDAREA
N.C
LOUDSEL
N.C
FRECSW
RRECSW
AREF
AGND
GND
—
O
I
I
I
I
I
I
I
O
O
I
O
O
I
O
O
O
I
O
I
O
O
O
I
I
I
I
O
O
I
O
O
O
O
O
O
O
O
I
I
—
—
I
—
I
I
I
I
—
Ground
8 MHz Oscillator output
8 MHz Oscillator input
CPU reset input
Station detector input
Stereo signal input
Test pin (Connected to ground)
Power down detect input
Remote signal input
Chip enable output
Clock output
Data input
Data output
Servo clock output
Servo subq data & status input
Servo command data output
Digital mute control output
CD power supply output
Top loading close switch input
Servo focus down output
Servo status SENSE input
D/A MLAT output
Servo command latch output
Servo chip reset output
Servo SUBQ sync input
Tape play switch input
Tape motor reel sense input
Tape in switch input
Tape control output
Tape control output
Tape music search input
Tape play back mute signal output
Tape control output
Tape control output
Tape recording mute signal output
Tape control output
Record LED output
CD SYNC LED output
Wide LED output
AD key input (16 keys)
AD key input (16 keys)
Band area option (Not used)
Not used
Loudness initial select input
Not used
Tape forward record switch input
Tape reverse record switch input
A/D convert refrence input (+5V)
A/D convert Input ground input
Ground
Pin No.
Pin Name
I/O
Function
5-2. IC PIN FUNCTION
•
IC201 MASTER CONTROL (TC9613)
– 15 –
VDD
NARROW
NORMAL
LOUD
DBFB
VOL CLK
VOL DATA
VOL STB
FUNC A
FUNC B
MDMUTE
POWER
MUTE A
SEG27-SEG0
COM3
COM2
COM1
COM0
VLC
N.C
N.C
N.C
VDD
51
52
53
54
55
56
57
58
59
60
61
62
63
64-91
92
93
94
95
96
97
98
99
100
—
O
O
O
—
O
O
O
O
O
O
O
O
O
O
O
O
O
O
—
—
—
—
+5V power supply
Narrow LED output
Normal LED output
Loudness on/off control output
Not used (Connected to ground)
Volume control clock output
Volume control data output
Volume control strobe output
TAPE/TUNER control signal output (00: TAPE/01: TUNER)
CD/MD control signal output (10: CD/11: MD)
MD/REC ON mute output
System power output
Audio mute control output
LCD segment output
LCD common 3 output
LCD common 2 output
LCD common 1 output
LCD common 0 output
LCD drive power supply output
Not used (Connected to ground)
Not used (Connected to ground)
Not used (Connected to ground)
+5V power supply
Pin No.
Pin Name
I/O
Function
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