Sony HCD-EA20 - Amp Section

3232
HCD-EA20
– AMP SECTION –
• SIGNAL PATH
: AUDIO
HP-MUTE
HP-SW
J851
J301
(+)
(–)
Q505
MUTING
CONTROL
FRONT
L
27
FL DATA
29
FL CLK
6
FL STB
(+)
(–)
FRONT
R
(+)
(–)
IC501 (2/3)
SYSTEM CONTROLLER
IC401
POWER AMP
IC802
FL DRIVER
91
HP-SW
7
DIN
8
CLK
9
STB
(+)
(–)
(+)
(–)
SURR
L
(+)
(–)
Q401
STANDBY
CONTROL
43
F-RELAY
45
PROTECT-IN
SURR
R
CENTER
SPEAKER
WOOFER
PHONES
FL801
FLUORESCENT
INDICATOR TUBE
Q881 - 882
MUTING
Q503, 504
SIRCS DETECT
FL, FR, SL, SR, C, SW
K
AUDIO
SECTION
VIDEO
SECTION
VIDEO
SECTION
32
HP MUTE
HP-SW
HP-MUTE
SG1 – SG16
44
R-RELAY
14 – 29
GR1 – GR12
42 – 31
21
KEY INT
I2CDATA,
I2CCLK
I
SYS RESET, MUTE REQ
G
28
SIRCS
S800
ROTARY
ENCODER
IC801
REMOTE CONTROL
RECEIVER
VOLUME
96 – 94
KEY0 – KEY2
KEY0
S811 – 814,
S821 – 823,
S831
12 4
CH2IN CH2OUT
8 3
10
CH1IN CH1OUT
STBY
20
RM_INT
93
EN B
92
EN A
47
DVD SYS RESET
38
I2C-CLK
37
I2C-DATA
I2CCLK
I2CDATA
46
DVD MUTE REQ
SYS RESET
MUTE REQ
15
14
X501
5MHz
X2
X1
88
STBY LED
33STK-MUTE
D812
STANDBY
RELAY
DRIVER
Q462, 463
RELAY
DRIVER
Q381, 382
RELAY
DRIVER
Q383
RELAY
DRIVER
Q331, 332
IC301
POWER AMP
20 12
CH2IN CH2OUT
16 11
CH1IN CH1OUT
21 23
CH3IN CH3OUT
1
6
CH5IN
CH5OUT
5
CH4OUT
RY461
RY381
RY331
RY382
PROTECT
SWITCH
Q473, 474, 477
OVERLOAD
DETECT
Q411, 461
OVERLOAD
DETECT
Q322, 372
OVERLOAD
DETECT
Q321, 371
OVERLOAD
DETECT
Q323
THP471
RELAY
DRIVER
Q476
DC DETECT
Q478, 479
TEMP
DETECT
Q472
Q424 - 426
FAN CONTROL
FAN
FL
FR
C
SL
SR
SW
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 Q
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