Block Diagram -Audio Section - Sony ZS-2000 Service Manual

6-5. BLOCK DIAGRAM — AUDIO SECTION —
MAIN BOARD (2/2)
LINE BOARD (1/2)
J402
CN402 CNP302
LINE IN
LINE LCH
3 3
A
R-CH
TU
BOARD
(Page 26)
CN303
CD LCH
C
MO6V MO6V
POWER
CD
CD5V
CONT
BOARD
Q306
(Page 28)
CN302
B
C/T TCO
TU
BOARD
(Page 25)
• Signal path
: CD
: FM
CONTROL BOARD (3/3)
04
– 29 –
ELECTRONIC VOLUME
IC301
LINE
7
TU
TU L CH
4
DYNAMIC
CD
SEL TRE BASS
3
BASS
AL
1
19 20
P5V
BUF
Q313
C/T
CONT
Q311,312
CN301(2/2)
5 17 12 11 13 14 16
5 17 12 11 13 14 16
CN801
(2/2)
ALARM
IC804
16
AOUT
PCM
9 DAC ROM 17
SYNTH.
15
11 OSC1
10
ST
X804
6
NAR
4.19MHz
4
RESET
12 OSC2
VDD
10
POWER
BU5V
CONT
Q803
POWER AMP
IC303
L
15
13 2
AMP
17
SY/BY
5
H/P AMP
IC304
7
Q106
SYSTWM CONTROLLER
IC801(3/3)
CN804
5
74
A-MUTE KEY1 41
6
76 CLK
42
KEY2
7
77 DATA
KEY3 43
79 CD
78 C/T TCO
71 C/T CON
RESET
RST 30 1 2
BU5V
IC802
10 I0
11 I1
12 I2
9 ST
1
28
JOG-A
7 NAR
8
RST
2
29
JOG-B
80 AL-CON
SPK(R) BOARD
4 1
SP302
R-CH
3 2
R-CH
SPEAKER
CN304
SPK(L) BOARD
L+ 2 1
SP301
1 2
L- L-CH
SPEAKER
CN303 CN304
POWER
H/P BOARD
BOARD (2/2)
5 5 1 1
1
Q205
2 2 4 4
1 1 5 5
P12V
CNP304 CN903 CN904 CNP401
SWITCH (1) SWITCH (2)
BOARD BOARD
CNP802 CN805
2
2 2
3
4
3 3
KEY IN
CNP801 MATRIX
KEY IN
MATRIX
VOLUME
BOARD
1
RV801
2
VOLUME
CN806
– 30 –
ZS-2000
J401
i