Schematic Diagram - NAD T737 Service Manual

SCHEMATIC DIAGRAM (FRONT PART)
PHONES & OPTICAL PCB
JK522
+5V
VCC
GND +5V
OUT
14 13 12 11 10 9 8
IC522
HVITC74VHCT08FT
1 2 3 4 5 6 7
C5231 0.1
R5231 4.7
C5149
JW522
0.1uF(H)
R5149
4.7(H)
C5111 OPEN C5113 OPEN
R5111 OPEN R5113 OPEN
JW503 D5111 OPEN D5113 OPEN
OPEN
D5112 D5114 OPEN
JW501
C5112 0.1
R5112 OPEN
470
R5101
6
L 5
7
GAME
4
470
R 3
R5102
2
CVBS 1
JK501
JK502
Y_IN
S-VIDEO
C_IN
C5232 0.1
JW521
R5232 open
JK521
2
3
7
8
1
3-36
CUP12126-4
D+5V
OPT_IN
DGND
40dB ==> 58dB
CUP12126-6
FRONT LCH
GND
FRONT RCH
FRONT_CVBS
FRONT_SC
FRONT_SY
HPL OUT
GND
HPR OUT
GND
CUP12126-5
R5220
4.7
D+5V
R5009
BN507 & CN507
4.7
OPT_IN
DGND
62 61 58 57 56 55 54
MIC_IN
MIC_ON
+5V
R5157 : 10k ==> 27k
R5160 : 10k ==> 27k
RC501
R/C SENSOR
VOUT GND Vcc
1 2
L5057 R5033
10uH
D+5V 4.7
ST+5V
REMOTE_IN
OPTICAL_IN
VFD_RST R5027
1K R5028
VFD_DATA
R5029
VFD_CLK
R5030
VFD_CS 1K
VOL_B
VOL_A
KEY_2
KEY_1
POWER_H
ST+5V
HIGH : BLUE ON
LOW : ORG ON
R5031
680
Q5036 R5032
560
R5059
KRC102M
1K
Q5033
Q5037
KRC102M
KRC102M
VFD PCB CUP12126-1
FIP51 CFLHCA16S201T
53 52 51 50 49 48 7 6 5 2 1
R5045
10
C5041 0.1
1000P
C5042
C5043 1000P
C5044 1000P
VFD_DATA
R5044
47
R5043 VFD_CLK
47
VFD_CS
R5042
47
R5041 VFD_RST
47
R5035
4.7
C5035
0.022
3
C5036
10/16V
14 13 12 11 10 9 8
IC501
HVITC74VHCT08FT
1 2 3 4 5 6 7
1K
1K
KEY_2
KEY_1
LEFT
S5006
RIGHT
S5007
SURROUND ENTER
S5003 S5008
UP
VR502
S5009
SOURCE LIST >> DOWN
S5005 S5010
SOURCE LIST <<
VR ENCODER
S5011
MENU
S5012
5
5
POWER CVD1L0593A2B12MA402
4
4 D5032
S5001
3
3 B O
2
2
1
1
CUP12126-7
3-37
TO POWER TRANS.
CN502
1 2 3 4 5
R5056
2.2
Q5051
C2316Y
40V
R5053
1.2K
C5115 OPEN
JW502
R5115 OPEN
D5115 OPEN
D5116
OPEN