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