Sony CMT-EP707 / HCD-EP707 Service Manual ▷ View online
25
25
HCD-EP707
5-10. SCHEMATIC DIAGRAM – POWER AMP Section –
REGULATOR
BOARD
CON801
I
REGULATOR
BOARD
CON808
H
MAIN
BOARD
(2/2)
CON214
E
0
0
0
1.5
0
24.5
0
1.2
14.8
8.9
22.8
13.2
13.2
22.8
25.6
1.2
0
0
0
0
0
POWER AMP BOARD
+
−
−
+
L
R
CON800
4P
SPEAKER JACK
BOARD
R635
120
100PF
10
50V
CE619
200UF
200UF
25V
10
50V
100PF
CE711
50V
R711
2.7k
R712
2.7k
R710
10k
Q703
DTC343TS
Q704
DTC343TS
16V
R634
120
U1
POWER AMP
U1
4450
C624
0.1UF
25V
0.1
0.1
25V
25V
U700
NJM7809A
SPEAKER
IMPEDANCE
USE 4Ω
SP801
U700
+9V REGULATOR
Q701 – 704
MUTING
16V
25V
(Page 23)
(Page 29)
(Page 29)
26
26
HCD-EP707
5-11. PRINTED WIRING BOARDS – DISPLAY Section –
•
See page 20 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
D101
B-2
D102
A-2
D103
C-2
D104
C-9
D105
B-9
D106
C-2
D107
C-6
D108
C-6
D109
C-5
D110
C-5
D111
C-4
D112
C-9
D113
C-4
D114
C-9
D120
C-5
D121
C-6
D122
C-6
D123
C-7
D124
C-6
D125
C-3
D126
C-3
IC101
B-5
IC102
B-9
LED101
G-8
LED102
D-5
LED103
D-7
LED104
D-6
LED105
D-4
Q101
A-2
Q102
C-9
Q103
G-6
Q104
C-3
Q105
C-7
Q106
D-3
X101
D-8
Z201
G-6
1
8
1
8
7
IC101
1
11
1
9
IC102
DISPLAY BOARD
VOL KEY BOARD
MAIN BOARD
CON205
B
1
3
1
6
CHANGER
MECHANISM
BLOCK
(2/2)
∗
SUPPLIED
WITH THE
WITH THE
ASSEMBLED
BLOCK
∗
1
MAIN BOARD
CON208
G
TUNING
+
TUNING
−
PRESET
+
PRESET
−
REC PAUSE/
START
TUNER MEM
PGM CLEAR
ENTER
MD
LED105, SW119
LED102, SW121
LED104, SW122
TAPE
LED103, SW120
DISPLAY
1
3
X101
DISC 1
DISC 2
DISC 3
PLAY MODE
FM MODE/DIR
MEGA BASS
MUSIC MENU
1
6
39 38
36
28
23
15
12
4
2
1
1
100
81
80
51
50
31
30
4
1
5
8
MAIN BOARD
CON211
D
MAIN BOARD
CON203
A
REGULATOR
BOARD
CON806
J
MAIN
BOARD
CON207
C
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
B
C
E
E
C
B
E
C
B
R233
E
C
B
E
C
B
VOLUME
R216
ENCODER
1
3
E
B
C
Z201
JP201
STANDBY
1
2
REGULATOR
BOARD
CON810
K
I
(AEP, UK, AUS) (US, CND)
(US, CND)
(US, CND, AUS)
(US, CND, AEP, UK)
VFD1
FLUORESCENT INDICATOR TUBE
CD
DISC SKIP
R123
(US, CND)
TUNER
BAND
(Page 21)
(Page 21)
(Page 21)
(Page 21)
(Page 28)
(Page 21)
(Page 28)
27
27
HCD-EP707
5-12. SCHEMATIC DIAGRAMS – DISPLAY Section –
•
See page 20 for Waveform.
MAIN BOARD (1/2)
CON207
C
MAIN BOARD (2/2)
CON208
G
MAIN BOARD (1/2)
CON205
B
D
MAIN BOARD
(1/2)
CON211
A
MAIN BOARD (1/2)
CON203
J
REGULATOR
BOARD
CIN806
CIN806
REGULATOR
BOARD
CON810
K
11
4.9
4.2
4.2
4.2
0
∗
1.4
(1.1)
<1-1.6>
4.1
∗
0.3
4.2
4.1
0
0
4.2
0
4.2
4.2
2
1.9
4.2
4.2
0
4.7
4.2
4.2
4.2
4.2
4.2
∗
4.7 [0] <0>
0 [0]
<4.8> {0}
4.8
4.4
4.4
4.4
4.2
4.4
1.2 [4.8] <0>
1.8
4.8
4.8
0 [5] <0>
0
4.9
5.1 [5.1]
<∗> {0}
4.2
0
4.2
4.2
0
0
0
4.6 [0] <0>
4.2
4.7 [4.7]
<0>
4.7 [4.7]
<0>
4.7 [4.7]
<4.7> {0}
4.7 [4.7]
<4.7> {0}
-18.3
-20.4
-18.2
-24.7
-26.8
-22.5
-18.3
-18.3
-16.1
-18.2
-26.8
-24.6
-24.7
-24.7
-20.4
-18.2
-22.5
-20.5
-20.4
-24.6
4.8
4.8
0.7
1.5
[0.9-1.1]
<1.3-1.7>
4.1
0.5
1.5
[0.9-1.1]
<1.3-1.7>
4.1
3.5
3.6
(US, CND)
(US, CND)
(AEP, UK, AUS)
(US, CND, AUS)
(US, CND)
(US, CND, AEP, UK)
VOL KEY BOARD
DISPLAY BOARD
IC102
EEPROM
IC101
SYSTEM CONTROLLER
24P
27P
SEL2410E
SEL2410E
SEL2410E
SEL2410E
MD
TAPE
50V
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
7
6
5
4
3
2
1
6
5
4
3
2
1
SUPPLIED WITH THE
ASSEMBLED BLOCK
ASSEMBLED BLOCK
CHANGER
MECHANISM BLOCK
(2/2)
∗
∗
8
7
6
5
4
3
2
1
3
2
1
1
2
4
5
6
7
8
9
2.7k
2.7k
2.7k
0.01
10V
0.022
10V
0.022
10V
RPM7138
X101
REMOTE CONTROL RECEIVER
DETECT
S19
NC
NC
NC
NC
NC
NC
REC-SW (RVS)
REC-SW (FWD)
NC
HALF-SW
NC
MODE-SW
NC
NC
NC
KEY2
KEY3
KEY4
AMS
NC
NC
1
2
3
4
8
7
6
5
A0
A1
A2
VSS
VCC
TEST
SCL
SDA
1.2k
1.5k
1.8k
2.7k
3.3k
5.6k
8.2k
5.6k
3.3k
2.7k
1.8k
1.5k
1.2k
DISPLAY
TAPE
MD
PLAY MODE
FM MODE/DIR
TUNING −
TUNING +
TUNER MEM
1.5k
2.2k
124
125
REC PAUSE/
START
ENTER
PGM CLEAR
DISC 1
DISC 2
DISC 3
PRESET +
PRESET −
105
R124
2.7k
5.6k
ENCODER
VOLUME
MEGA BASS
MUSIC MENU
1
STANDBY
6.8k
Q103
2
1
5.1V
5.1V
1000P
1000P
6P
SLC-22VR3
UPD780206GF-127-3BA
0.1U
Q101
RESET
SWITCH
BUFFER
Q105
SWITCHING
POWER FAIL
3
0.1U
VCC
GND
OUT
Q104, 106
AM FREQUENCY
SELECT SWITCH
SELECT SWITCH
LED
DRIVE
Z201
5V1
0.022U
0.022U
0.1U
2.7k
2.7k
TUNER
BAND
CD
DISC SKIP
0.022U
CD
DISC SKIP
TUNER
BAND
FLUORESCENT INDICATOR TUBE
(Page 22)
(Page 23)
(Page 22)
(Page 22)
(Page 22)
(Page 29)
(Page 29)
28
28
HCD-EP707
D800
D-4
D801
D-3
D802
B-6
D803
B-5
D804
B-5
D805
B-6
D806
C-6
D807
C-5
D808
C-5
D809
C-5
D810
E-4
D811
E-3
D812
E-4
D813
E-4
D816
C-5
D820
D-4
D823
E-5
D824
E-6
D830
D-4
D831
D-5
D832
E-6
D833
E-3
D834
E-3
D836
C-4
D837
F-3
Q801
D-5
Q802
D-5
Q809
D-4
Q821
E-4
Q822
F-6
U802
D-6
5-13. PRINTED WIRING BOARDS – REGULATOR Section –
•
See page 20 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
F804
F803
+
+
+
+
+
+
B C E
B C E
+
+
B
C
E
E
+
+
+
+
+
3
1
POWER
AMP
BOARD
H
3
1
POWER
AMP
BOARD
I
9
1
1
10
DISPLAY
BOARD
J
MAIN
BOARD
CON216
F
1
2
2
1
2
2
SW901
CD MECHANISM
PROTECT
REGULATOR BOARD
SWITCH BOARD
1
VOL KEY
BOARD
K
2
SUB POWER
TRANSFORMER
AC24
AC23
AC10
AC9
AC11
AC12
AC5
AC6
AC11
AC12
AC6
AC5
AC10
AC9
AC24
AC23
TR800
MAIN POWER
TRANSFORMER
AC IN
A
B
C
D
E
F
G
1
2
3
4
5
6
7
B
C
E
U802
CON808
CON801
CON806
Q822
1
2
3
(Page 26)
(Page 26)
(Page 21)
(Page 24)
(Page 24)
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