NAD T748 Service Manual page 57

SCHEMATIC DIAGRAM ( POWER & RS232C PART )
+12V
P_DOWN
ST+5.6V
POWER_ON
GND
CN419
3
2
IR INPUT
1
JK402
6
5
3
IPOD JACK
2
4
7
1
JK486
RS232C
JK403
2-58
SUB_TRANS B'D
CUP12373Z-2
D4048
1N4003SR
D4049
1N4003SR
IC414
KIC3201S-50
1 2 3
R4134 D4042 D4044
10 1W 1N4003SR
1N4003SR
Q4052
Q4046
KTC3199Y KRC107S D4045 D4043
1N4003SR
1N4003SR
D4040
1N4003SR
D4038
R4166 D4041
10K 4.3V 1N4003SR
RS232C B'D
CUP12373Z-3
D4046
R4188
Q4051 1SS355
OPEN KRA107S
IC403
KP1010B
R4137
270
R4131
R4992 0 47
R4993 0 R4132
47
C4101
0.1
16 15 14 13 12 11 10 9
RS232C
1 2 3 4 5 6 7 8
RY401
1 2
4 3
(EUR)
OL402
CJJ7A021Z
T 2.5A L 250V
F4004
(USA)
2.5A/250V OL401
CJJ7A012Z
T4001
CLT5I020ZE/U
F4003
EUR : T 6.3A L 250V
CN416
USA : T 8A L 250V
C4092
* OPTION TABLE
1/50V
CN417
Ref.
J1
Chassis
OL401
OL402
FUSE
T4001
IPOD_TX
IPOD_RX
ST 5R6V
GND
REAR IR IN
IR OUT
GND
RS232_TX
RS232_RX
USA EUR
KJJ7A012Z -
- KJJ7A022Z
KBA2C8000TLEY KBA2C6300TLEY
CLT5I020ZU CLT5I020ZE
2-59