PDP-504CMX/1
132
1
2
3
4
1
2
3
4
C
D
F
A
B
E
2
POWER
POWER SUPPLY Unit
50 (43) X DRIVE Assy
VSUS UVP
X SUS BLOCK
IC1203, IC1207
(mask module)
50 (43) Y DRIVE Assy
VSUS UVP
Y SUS BLOCK
IC2303, IC2307
(mask module)
3
SCAN
50 (43) SCAN A, B
Assy
or 50 (43) Y DRIVE
VH UVP
SCAN IC
SCAN IC
VH UVP
VH DC/DC
IC2401, IC2402, IC2410, L2401
CN2001, CN2301
4
SCN-5V
50 (43) SCAN A, B
Assy
or 50 (43) Y DRIVE
Assy
CN2101, CN2102, CN2301
IC5V UVP
SCAN IC, IC5V DC/DC Y SUS
BLOCK
SCAN IC, Q2401, Q2402, IC2304,
IC5V OVP
IC5V DC/DC
IC2403, IC2411
5
Y-DRIVE
50 (43) Y DRIVE Assy
+16.5V OCP
Y SUS BLOCK
IC2303, IC2307
(mask module)
, IC2301,
IC2304, IC2305, R2332
6
Y-DCDC
50 (43) Y DRIVE Assy
VOFS UVP
VOFS DC/DC
IC2404, IC2412, Q2404, Q2407, Q2312
VOFS OVP
VOFS DC/DC
IC2404, IC2412
VH OVP
VH DC/DC
IC2402, IC2410
7
Y-SUS
50 (43) Y DRIVE Assy
Y RESONANCE BLOCK
Q2202
,
Q2203
,
Q2214, Q2205
,
Q2206,
Q2208, Q2209, Q2212, IC2201, IC2202,
D2201, D2206, D2220, D2211, D2225,
D2230,
Control signal series resistors
8
ADRS
50 (43) ADDRESS
CN1501
ADR RESONANCE BLOCK
R1631, Q1601, D1602
9
X-DRIVE
50 (43) X DRIVE Assy
CN1001, CN1201
+16.5V OCP
X SUS BLOCK
IC1203, IC1207
(mask module)
, IC1204,
IC1206, R1230, IC1205
VRN OCP
X SUS BLOCK
Q1205, R1226, R1251
10
X-DCDC
50 (43) X DRIVE Assy
VRN OVP
VRN DC/DC
IC1403, IC1404
VRN UVP
VRN DC/DC
IC1402, IC1403, IC1404
X SUS BLOCK
Q1205, R1226, R1251
11
X-SUS
50 (43) X DRIVE Assy
X RESONANCE BLOCK
Q1102, Q1103, Q1114, Q1105,
Q1108, Q1109, Q1111, Q1112, IC1101,
IC1102, D1103, D1113, D1118, D1125,
D1129, D1130,
Control signal series resistors
12
DIG-DCDC
DIGITAL VIDEO Assy
DCDC +3.3V, +1.5V OVP
IC4 Drive STOP
DC DC CONVERTER BLOCK
U5602 (DC DC CONVERTER Module)
15
IC4
DIGITAL VIDEO Assy
IC4 BLOCK
IC5401
OVP:
O
ver
V
olta
g
e
P
rotection UVP:
U
nder
V
olta
g
e
P
rotection
OCP:
O
ver
C
urrent
P
rotection
• Power-down diagnosis (defective points)
PD Circuit in
operation
Defective Assy
Reason for Power-down
Point to be Checked
Possible Defective Part
Remarks
Disconnection of cable detected
Disconnection of cable detected
Disconnection of cable detected
Disconnection of cable detected
Power-down caused by
detection of middle-point voltage
Power-down caused by
detection of middle-point voltage
Power-down caused by
detection of a power surge
If the elapsed time from relay-on until the LED
in the power supply unit lights is about 2-4
seconds, the defective assembly may be the
50 (43) X or Y DRIVE.
Note:
50 (43)
∗∗∗
Assy means (50
∗∗∗
Assy or 43
∗∗∗
Assy.)
Содержание PDP-504CMX
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