Block Diagram – Main Section (2/2) - Sony D-E990 Service Manual

D-E990/EJ915
5-2. BLOCK DIAGRAM – MAIN Section (2/2) –
DOUT
(Page 10) I
LOUT1
LOUT1,
LOUT2 LOUT2
(Page 10) J
XRST
(Page 10)
L
AMUTE
(Page 10)
K
78
R4M
(Page 10) M
D415
RSTB
H
(Page 13)
05
MUTING
Q301
ANALOG SWITCH
IC302
1 2
7
6 5
3
LINE MUTE
CONTROL SWITCH
Q302
D601 D602
TAP802
(TEST)
47 76 14
SYSTEM CONTROLLER
IC801(2/3)
31 32 30 34 33
COMMUNICATION FORMAT CONVERTER
IC802
RW
18
XLT
17
SCK
16
REMOTE
SO MICRO COMPUTER
15 CONTROL
INTERFACE
1SI
INTERFACE
14
MCLK
10
RST
11
– 11 –
VCC 3V
HEADPHONE AMP
IC351
IN_L OUT_L
14 8
IN_R
OUT_R
15 6
MT_SW
19 MT SW
PW_SW
20 PW SW S802, 805 – 809
BEEP
17 BEEP
VCPU 2V
S803
AVLS
NORM
LIMIT
7 9 28 38 18
TSB
19
B+ SWITCH
Q601
J301
OPTICAL
TRANSCEIVER
LINE OUT
(OPTICAL)
(LINE OUT JACK)
J302
i / REMOTE
S802
VCPU +2V
u
S805
4 VCPU +2V
.
3 TSB
S806
>
2 RMKEY
S807
1 GND
x/CHG
S808
+
VOLUME
S809
–
19
• SIGNAL PATH
: CD PLAY (ANALOG OUT)
: CD PLAY (OPTICAL OUT)
– 12 –