Sony CMT-EP707 / HCD-EP707 Service Manual ▷ View online
31
HCD-EP707
5-15.
IC PIN FUNCTION DESCRIPTION
•
DISPLAY BOARD IC101
µ
PD780206GF-127-3BA (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VDD3
—
Power supply terminal (+4.2V)
2
POWER
O
Power on/off control signal output terminal “L”: standby, “H”: power on
3
MUTE
O
Muting on/off control signal output terminal “H”: active
4
PLL-CE
O
PLL chip enable signal output to the FM/AM PLL “H” active
5
SOUND ENABLE
O
Sound enable signal output terminal Not used
6
PRO-LOGIC-
ENABLE
O
Pro logic enable signal output terminal Not used
7
DAW M–
O
Drawer motor drive signal output terminal “L”: active
8
STROBE
O
Strobe signal output for the function select IC
9
CD-RESET
O
Reset signal output to the CD block “L”: reset
10
RESET
I
Reset signal input from the reset switch “L”: reset
11
X2
O
System clock output terminal (4.19MHz)
12
X1
I
System clock input terminal (4.19MHz)
13
IC (VPP)
—
Connected to granud
14, 15
NC
—
Not used
16
VDD2
—
Power supply terminal (+4.2V)
17
CLK
O
Serial data transfer clock signal output to the function select IC
18
DATA OUT
O
Serial data output to the function select IC
19
DATA IN
I
Serial data input from the FM/AM PLL
20
CAR M+
O
Carriage motor drive signal output terminal “L”: active
21
CAR M–
O
Carriage motor drive signal output terminal “L”: active
22
EEPROM CLK
O
Serial data transfer clock signal output to the EEPROM and input select IC
23
EEPROM DATA
I/O
Two-way data bus with the EEPROM and input select IC
24
DAW M+
O
Drawer motor drive signal output terminal “L”: active
25
AVSS
—
Ground terminal (for A/D converter)
26
RDS DATAIN
I
RDS serial data input terminal Not used
27
TUNER STATION
I
Tuning detection signal input from the LA1823 “L”: tuned, “H”: detuned
28
AMS
I
Automatic music sensor detection signal input terminal
29
KEY5
I
Key input terminal (A/D input)
30
KEY4
I
Key input terminal (A/D input) Not used
31 to 33
KEY3 to KEY1
I
Key input terminal (A/D input)
34
AVDD
—
Power supply terminal (for A/D converter) (+4.2V)
35
AVREF
I
Reference voltage (+4.4V) input terminal (for A/D converter)
36
CD CLK
O
Serial data transfer clock signal output to the CD block
37
RDS CLKIN
I
RDS serial data transfer clock signal input terminal Not used
38
PWDET
I
Power failure detection signal input terminal “L”: power failure, “H”: power on
39
REMIN
I
Remote control signal input from the remote control receiver
40
VSS
—
Ground terminal
41
CD-DATA
O
Serial data output to the CD block
42
ENCODER A
I
Jog dial pulse input from the rotary encoder (A phase input)
43
ENCODER B
I
Jog dial pulse input from the rotary encoder (B phase input)
44
REC IN
I
Tape play/rec detect sensor input terminal “L” input when the tape play/rec detect
45
NC
—
Not used
46
VDD1
—
Power supply terminal (+4.2V)
47
CAR EX
I
Switch input from the CD block “H”: when elevator is moving
32
HCD-EP707
Pin No.
Pin Name
I/O
Description
48
CAR HM
I
Switch input from the CD block “H”: home position
49
4
I
Switch input from the CD block
50
5
I
Switch input from the CD block
51
OP/CLS
I
Switch input from the CD block “L”: When tray open/close completely
52
SLD FW
I
Switch input from the CD block “L”: when tray is close
53
STEREO
I
FM stereo detection signal input from the LA1823 “H”: stereo
54
SLD REW
I
Switch input from the CD block “L”: when tray is open
55, 56
NC
—
Not used
57
MODE-SW
I
Head position detect switch input terminal “H”: reverse direction, “L”: forward direction
58
NC
—
Not used
59
HALF-SW
I
Cassette tape detect switch input terminal “H”: no cassette, “L”: cassette in
60
NC
—
Not used
61
REC-SW (FWD)
I
Rec-proof claw (forward direction) detection signal input from the protect detect switch
“L”: recording possible, “H”: protect
“L”: recording possible, “H”: protect
62
REC-SW (RVS)
I
Rec-proof claw (reverse direction) detection signal input from the protect detect switch
“L”: recording possible, “H”: protect
“L”: recording possible, “H”: protect
63, 64
BASS1, BASS2
—
Not used
65 to 70
NC
—
Not used
71, 72
S19, S18
I/O
Segment drive signal output terminal
AM frequency select switch input terminal
AM frequency select switch input terminal
73 to 90
S17 to S1
O
Segment drive signal output terminal
91, 92
G10, G9
O
Grid drive signal output terminal Not used
93 to 100
G8 to G1
O
Grid drive signal output terminal
33
HCD-EP707
6-1. PANEL SECTION
SECTION 6
EXPLODED VIEWS
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Les composants identifiés par une
marque 0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
marque 0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
The components identified by mark
0 or dotted line with mark 0 are
critical for safety.
Replace only with part number
specified.
critical for safety.
Replace only with part number
specified.
1
2
5
4
3
#7
#13
#9
#9
#7
#7
#7
#7
#8
#7
#8
#7
front panel section
top cabinet section
chassis section
6
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
4-242-007-01 RUBBER (FOOT)
2
4-242-032-01 CD LID
3
4-242-005-01 SIDE PANEL (L) (US, CND)
3
4-243-165-01 SIDE PANEL (L) (AEP, UK, AUS)
4
4-242-006-01 SIDE PANEL (R) (US, CND)
4
4-243-166-01 SIDE PANEL (R) (AEP, UK, AUS)
5
4-242-029-01 CD LID WINDOW
6
1-500-712-11 CORE, FERRITE
#7
7-685-246-14 SCREW +KTP 3X8 TYPE2 NON-SLIT
#8
7-682-248-04 SCREW +K 3X8
#9
7-685-647-14 SCERW +BVTP 3X10 TYPE2 SLIT
#13
7-685-648-14 SCREW +BVTP 3X12 TYPE2 SLIT
34
HCD-EP707
6-2. FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
X-4955-068-1 KNOB ASSY
52
4-242-013-01 VOLUME DECORATION RING
53
4-826-537-11 WASHER, SPECIAL
54
4-242-012-01 VFD WINDOW (US, CND AUS)
54
4-243-170-01 VFD WINDOW (AEP, UK)
55
A-4730-425-A DISPLAY BOARD, COMPLETE (US, CND)
55
A-4730-625-A DISPLAY BOARD, COMPLETE (AEP, UK)
55
A-4730-716-A DISPLAY BOARD, COMPLETE (AUS)
56
4-242-018-01 TUNING SWING LEVER
57
4-242-028-01 TUNING SHAFT SPRING
58
4-235-994-01 PANEL FIXING PLATE
59
4-242-027-01 FRONT PANEL
60
4-242-019-01 TUNING SWING SHAFT
#1
7-685-135-19 SCREW +P2.6X10 TYPE2 NON-SLIT
#2
7-685-646-14 SCREW +BVTP 3X8 TYPE2 SLIT
#3
7-685-536-14 SCREW +BTP 2.6X12 TYPE2 N-S
#4
7-685-854-04 SCREW +BVTT 2X8 (S)
#5
7-685-534-14 SCREW +BTP 2.6X8 TYPE2 N-S
59
53
52
51
54
55
58
56
57
not
supplied
supplied
not
supplied
supplied
not
supplied
supplied
not
supplied
supplied
not
supplied
supplied
not
supplied
supplied
not
supplied
supplied
not
supplied
supplied
not
supplied
supplied
#5
#4
#1
#5
#5
#3
#5
#2
#2
not
supplied
supplied
not
supplied
supplied
not
supplied
supplied
not supplied
(headphone board)
(headphone board)
not supplied
(vol key board)
(vol key board)
supplied with R216
not
supplied
supplied
60
Ver 1.5
Click on the first or last page to see other CMT-EP707 / HCD-EP707 service manuals if exist.