Schematic Diagram - Main Section - Sony HCD-EP315 Service Manual

HCD-EP315
Q Q
6-6. Schematic Diagram – MAIN Section –
3 7 6 3 1 5 1 5 0
MAIN BOARD
A
TO
CONTROL
BOARD
CN302
(Page 25)
T E
L 1 3 9 4 2 2 9 6 5 1 3
– REC/PLAY SWITCH –
3.0(-6.9)
0
3.0
(-6.9)
3.0
(-6.9)
DECK BLOCK
0
0(-23)
0
L-CH
(REC/PB)
R-CH
(ERASE)
w w w
• See page 16 for Waveform. • See page 29 for IC Block Diagram.
(TO TUNER UNIT)
ANTENNA
(CD DOOR)
CN101
0.6
9
9
9
0
Q701,702
TUNER
POWER
ON/OFF
SWITCH
0 0
IC601
PB/REC
EQ AMP
0 0
0(-23.1) 4.5(0)
3.3(0)
0
(4.9)
3.3
(-12.2)
3.3(-0.6)
2.5(-0.6)
SWITCH
0
2.5(-0.6)
7
9(8.4)
8.6(2.4)
9(2.5)
8.6(2.9)
0.3
9(2.5)
(0.7)
0
2SA1036K
7
– BIAS OSC –
SWITCH
0(5.0) – BIAS –
0
9.0(0)
9(8.1)
9
SWITCH
x a o
. i
http://www.xiaoyu163.com
Q601,602
DSG SWITCH
0
0
0
0
0 0 0 0 0 0 0 0 0 0
Q Q -3.5
0 0
3 7 6
-3.5
0
0
0 0 0 0 0 -5.3
0.4 5.2 0.2
0.3
-3.5 0.1
REG
0.3(1.7) 4.9 17.9
7.5 7.5
17.1
0.9(1.3) REG
0.3(0.7)
1.0
0.5
16.4
Q404, 405
POWER
CONTROL
0.7
0.1
u 1 6 3
y
22 22
http://www.xiaoyu163.com
2 4
8 9 9
IC800
HEAD PHONE
MUTE
AMP
6.8
0 0 0
0
v+
–
+
-3.3 13.8
–
+
13.2 v–
MUTE
0
0 0
-6.8
-3.5
MUTE 2.5
0.2
IC204
POWER AMP
0
3 1 5 1 5 0 8 9
0
Q400,401,403
MUTE
TA7805S
IC200
9
+VM
REG.
m
c o
.
2
8 9 9
L
J201
MD
R
J202
PHONES
MUTE
0
-3.3
Q205,206
AC DETECT
0.2
0.5
J203
L
SPEAKER
IMPEDANCE
R
USE 6-16 Ω
2 4 9 8 2 9 9
C
RELAY
DRIVE
TO
0
TRANSFORMER
BOARD
0.1
CN901
(Page 27)
0.8