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BLOCK DIAGRAM (2)
MAIN_G
MAIN_Y/CV
1
MAIN_C/CB
TO
MAIN_CR
AUS (1/2)
BOARD
CTL
3
TO
AUS (1/2)
BOARD
SW_9V
AHVSUP
39
Q511
SPDIF_OUT
76
BUFFER
IC522
IC504
AUDIO PROSSESOR
AMP
M-L
56 SC1_IN_L
SC1_OUT_L
37
6
M-R
2
57 SC1_IN_R
SC1_OUT_R
36
2
TO
12C_S
AUS (1/2)
BOARD
XTAL_IN
71
12C_SCL
2
SCL
12C_SDA
3
SDA
XTAL_OUT
72
X501
18.432MHz
74
8 9 10 11 21
Q509
2
IC512
4
INITIAL MUTE
2 3
11
59 13 8 7 18
INITIAL MUTE
Q510
IC523
MUTE
6
DELAY
A0-16
I/O0-7
21,23,24,
27,28,30-32,
55-50,
35-40,43-45
22
29
47,46
12-2,23,
13-15,
29
24
25-28,31
17-21
I/O1-8
A0-16
IC524
SRAM
TO DSU BOARD
CN4000
IC3
LEVEL SHIFT
IC514
SHUNT
1
REGULATOR
3
2
SPDIF
Q501
VS
SW_9V
BIAS
(IC506,526)
7
1
Q503,504
MUTE
Q512
AC_RLY
BUFFER
Q508
LINE_MUTE
BUFFER
AD_RST
AD_MUTE
Q2322,
2323
BUFFER
Q502
STBY5V
Q505
D5V
TO
TO
T1 BOARD
AK BOARD
CN7150/
CN7260
T3 BOARD
CN7155
IC2300
FAN CONTROL
IC2305
SUB_11V
1
3
DATA DECODER
4 2
FAN1-CTL
Q2310,2305
DAC4
3
BUFFER
IC2301
FAN CONTROL
SUB_11V
1
3
4 2
FAN2-CTL
Q2309,2304
DAC3
4
BUFFER
IC2302
SDA_E
14
FAN CONTROL
SCL_E
15
SUB_11V
1
3
4 2
FAN3-CTL
Q2308,2303
DAC2
5
BUFFER
IC2303
FAN CONTROL
SUB_11V
1
3
4 2
FAN4-CTL
Q2307,2302
DAC1
6
BUFFER
Q2300,2312
FAN_CTL
DAC0 7
SW3 10
LAMP_ON
Q2392,2393,2395
FAN
LAMP_HV
CONTROL
ATSA_11V
ATSC_9V
D5V
A5V
D5V
SW_3.3V
SW_2.5V
(
Supplied as the ASU/DSU block ass'y for service.
)
ASU (2/2) (FAN, POWER CONTROL)
The parts on this board are not supplied individually
– 27 –
FAN_PROT
CN2301
1
FAN1-POW
M
FAN
D2301
2
FAN1-PROT
4
FAN2-POW
M
FAN
D2302
5
FAN2-PROT
7
FAN3-POW
M
FAN
D2303
8
FAN3-PROT
9
FAN4-POW
M
FAN
10
FAN4-PROT
Q7
PFC_DET
CN2100
32
PFC_DET
AC_RLY
31
AC_RLY
TU32V
44
TU32V
STBY_5V
41
STBY5V
40 +B_OVP
37
REC_ON
49
16.5V
A16.5V
50
TO
G BOARD
26
CN6502
SUB_6.5V
24
SUB6.5V
22
IC2100,2101
15
SUB_11V
SUB11V
IC2103
9
REGULATOR
ATSC_5V
6
THRU5V
SW_9V
2
SW9V
1
SW9V
KDS-R50XBR1/R60XBR1
RM-Y914
RM-Y914

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