D-EJ955
11
11
5-2.
BLOCK DIAGRAM – MAIN Section (2/2) –
B+ SWITCH
Q301
LINE MUTING
CONTROL SWITCH
Q302
VCC3
(LINE OUT JACK)
J301
LINE OUT
(OPTICAL)
OPTICAL
TRANSCEIVER
VCPU 2V
TSB
RMKEY
GND
J302
i
S805-809
4
3
2
1
VCPU B+
HEADPHONE AMP
IC301
SL807
(TEST)
HPL
HPR
DOUT
AOUTL
AOUTR
LRMU
XRST
MUTING
Q303
• SIGNAL PATH
: CD PLAY (ANALOG OUT)
: CD PLAY (OPTICAL OUT)
LIMIT
NORM
VCPU B+
S802
AVLS
2
1
VCPU B+
S803
G•PROTECTION
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299