NAD C 546BEE, Руководство по обслуживанию

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- 32 -
1 V
CC
8 GND
2 NC
3
GND
4
FB
7 GND
5 DRAIN
(Top View)
PDIP-7
65 kHz
100 kHz
Clock
Overload?
UVLO
Management
GND
NC
V
CC
FB
DRAIN
GND
GND
2
1
3
4
4 V
18 k
Error flag armed?
EMI Jittering
V
CC
Startup Source
Drain
Flip-Flop
D
max
= 65%
Reset
Reset
High when V
CC
3 V
Driver
Set
Q
V
CC
8
R
sense
250 ns
L.E.B.
7
5
-
+
+
-
Soft-Start
Startup Sequence
Overload
- +
0.5 V
Drain
MAIN BOARD
U101: POWER NCP1015AP100G
MAIN BOARD
U102: ADJUST SHUNT REG
2.5V
REF
REFERENCE
CATHODE
ANODE
Ref Cathode
Anode
1. 3.
2.