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10
SC2
1
3
Vsus
P baord
DC/DC
(L16699
/IC16788
/IC16789
/IC16789
other)
DC/DC
(L16699
/IC16788
/IC16789
/IC16789
other)
DC/DC
(L16697
/IC16784
/other)
DC/DC
(L16697
/IC16784
/other)
DC/DC
(L16698
/IC16786
/IC16787
/IC16787
other)
DC/DC
(L16698
/IC16786
/IC16787
/IC16787
other)
(148v)
Vsus
Vset
SC20
(15.8V)
Ａ baord
15V (15.8V)
(15.8V)
Vad
DC/DC
(IC16791)
DC/DC
(IC16791)
VFG
(5V)
5V_F_A
Regulator
(IC16724)
Regulator
(IC16724)
VFG
(5V)
5V_F_B
Regulator
(IC16725)
Regulator
(IC16725)
5V (4.9V)
Vscn
=Vad+148v
=Vad+148v
Vad
= - 195v
= - 195v
(195v)
(290v)
(5V)
Regulator
(IC16771)
Regulator
(IC16771)
Vad
16V_F (15.8V)
6
11
8
14
17
1
20
29
32
32
35
23
32V_F (32.6V)
All power supply circuit start automatically, when Vsus or 15V are inputted.
Vad is the negative voltage. Vscn, 16V_F, and 5V_Vad are regulated from Vad,
5V_F_A and 5V_F_B are regulated from VFG.
So when you check the voltage, please confirm the basis of each output.
GND
GND
GND
Block Diagram ( Power Supply Circuit ）
The value is one example of 42G10 product.
(Vset / Vad / Vscn are different by each model)
Please check the accurate value by service manual.
5V_Vad
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