NAD T 187 Service Manual page 47

PSU-MDC BOARD
For F8401
UL VER: T500mA 250V
CE VER: T500mA 250V
! !
!
L8401
M8401-B 30mH NT2322NL
1 2 3 4
F8401
J8003B REFER TO NOTE
TO J8003A (PSU STBY)
1
C8401
2
0.1uF
3
275V
!
J8004B
TO J8004A (PSU STBY)
1 +5V
2 MDC_POWER
3 DGND M8401-A
!
R8421
C8408
3.9k
1000p_(M)
1/16W
63V
Q8402
2SC1815Y
R8401
47K
1/16W
DGND DGND DGND
C8421
0.018uF
R8422
SCK15046MSY 4Ohm 6A
D8416
R8404
C8402
G8401 RS605
680K
4700pF
6A/600V
1/4W
250V C8406
C8404
100uF
0.1uF
R8403
400V
275V
680K
1/4W
C8403
!
4700pF
250V R8402
680K
1/4W
D8401
MURS160T3G
1A/600V
C8411
D8408 10uF
R8410
GS1G 210K
50V
1/4W
D8412
N.I.
U8402
UCC28600D
1 SS 8
STATUS
2 FB 7
OVP
1N5819
3 CS 6
VDD
4 5
GND OUT
C8420 C8423 C8409
390pF 100pF 0.1uF
50V 50V 100V 50V
R8412
1.69K
1/4W
T8401
AML09852
1 10
D8414
P6KE68A
68V/5W
3 12
C8415
D8415
0.01uF
P6KE68A
630V
68V/5W 6 7
D8406
MURS160T3G
1A/600V
4 9
R8405
20R
1/16W
D8402
MURS160T3G
1A/600V
R8406
C8410
C8407
240K
0.1uF
22uF
1/16W
50V
50V
D
G
Q8401
S
SPP11N60C3
11A/650V
D8403
1A/40V
R8408
28.7K
1/4W
R8409
10R R8411
1/10W 0.3R
3W
C8405
2200pF 250V
U8403
CNY17-1X007
JP8409
0R
6 B AN 1
5 C CA
2
C8417
470pF 4 E NC
3
50V
47
C8429
R8439
2200pF 1kV
10r 1/4W
1 2
D8404
STPS20170CG
20A/170V
1
2
3
D8405
STPS20170CG
L8402
20A/170V
8RHB2
1 7.5uH
1 2
2
3
R8438
C8419 C8426 C8416 C8427
47k
4700uF 1000uF 0.1uF 0.1uF
25V 25V 50V 50V
R8413
1.5K
1/16W
D8407
R8419 R8415
10V1/2W C8422
N.I. 499R
0.1uF
MMSZ5240
1/16W 1/16W
50V
R8423
2K
1/10W
C8424
220pF
100V
R8407 R8414
0 499R
1/16W 1/16W
R8418
C8425
R8416
8.35K
1/16W
36.5K
0.1uF
1/10W
50V
1
U8401
R8417
TL431CLP
R8420
4.7K
0 1/16W 1/16W
1
+8V
2
AGND
J9009B
C8428
TO CONN#1 J9009A
N.I. (1000u)
25V
CHGND