C3
C4
CN1 (A
C)
C7
J1
LF1
TH1
C5
D4
R1
J2
R3
D6
ZD1
J3
D2
D3
D1
C7
C8
R4
PC1
C22
J4
C20
R23
R13
R25
U3
J5
R26
C13
L1
D10
C17
D8
R10
D15 C16
C18
D12
C8
J11
CN3
R6
C9
R5
D7
J10
R6
R7
ZD2
R3
J12
C10
C17
L3
L2
C19
R30
J9
J8
Q6
D16
R16
J16
D17
R32
R31
R19
R18
R22
D14
Q4
R20
D13
Q5
R21
C21
R33
J20
+-V
A
AG
N
D
-8V
A
+12V
A
+5.5VS
+3.5V
DGND
+2.5V
+5V
+12VM
MGND
+9VM
J21
J17
J18
J19
J15
D11
Q1
R34
J14
R12
R17
Q3
R14
U2
C15
CN4
R11
C11
Q2
J7
R24 R27
R15
J6
C14
R29
R28
J13
CN3
GND
FL5V+
-27V
FL5V-
5.5VS
P/S
T1
C6
D5
R2
C1
CN2 (S/W)
VR1
A
C125V 51S2A
F1
U1
FOR CONTINUED PR
O
T
ECTION
A
GAINST RISK OF FIRE, REPLA
CE
ONL
Y
WITH SAME
TYPE AND RAITINGS OF FUSE.
CA
UTION
:
DV-SP300
PRINTERD CIRCUIT BOARD VIEW
POWER SUPPLY UNIT