PDP-433PU
83
5
6
7
8
5
6
7
8
C
D
F
A
B
E
Number
of
Blinks
P.D. Point in
Operation
Error Point
Possible Part in failure
Circuit State
P.D. Circuit
in Operation
Diagnosis Condition
1Y
DRIVE
IC22
0
6, IC22
14
(Pulse module), IC22
03, IC22
0
4
,
IC22
12, IC22
13, IC22
13, IC22
17, R22
0
9
K22
11
Lo
VCP OCP
2Y
DC DC
VOFS D/D CONV. BLOCK (Y DRIVE Assy)
IC2
7
02, IC2
7
0
9, IC2
7
15
K
2
7
12
Lo
VOFS OVP
VOFS D/D CONV. BLOCK (Y DRIVE Assy)
IC2
7
0
1,
IC2
7
02, IC2
7
0
9, IC2
7
15
K
2709
L
o
VOFS UVP
Drive section (control signals, output elements etc.)
in normal operation
Q22
11
, Q22
12, R22
7
7, IC22
0
8, IC22
10
VOFS D/D CONV. BLOCK in normal operation
VH D/D CONV. BLOCK (Y DRIVE Assy)
IC2
7
12, IC2
7
16
K
2
7
19
Lo
VH OVP
VH D/D CONV. BLOCK (Y DRIVE Assy)
IC2
7
11
, IC2
7
12, IC2
7
16
K2
7
18 Lo
VH UVP
Drive section (control signals, output elements etc.)
in normal operation
SCAN (A), (B) Assy
SCAN IC
VH D/D CONV. BLOCK in normal operation
IC
5V D/D CONV. BLOCK (Y DRIVE Assy)
IC2
7
0
4, IC2
7
0
6, IC2
7
17
SCAN Assy in normal operation
SCAN (A), (B) Assy
Y DRIVE Assy
SCAN IC
K2
7
13 Lo
IC
5V UVP
IC
5V D/D CONV. BLOCK in normal operation
IC
5V D/D CONV. BLOCK (Y DRIVE Assy)
IC2
7
0
4, IC2
7
0
6, IC2
7
17
SCAN Assy in normal operation
3X
DC DC
VRN D/D CONV. BLOCK (X DRIVE Assy)
IC3
7
02, IC3
7
12
K
3708
L
o
VRN OVP
VRN D/D CONV. BLOCK (X DRIVE Assy)
IC3
7
0
1,
IC3
7
02, IC3
7
12
K
3705
L
o
VRN UVP
Drive section (control signals, output elements etc.)
in normal operation
X DRIVE Assy
Q3
12
2
VRN D/D CONV. BLOCK in normal operation
4X
DRIVE
X DRIVE Assy
IC32
0
0, IC32
0
1 (pulse module), IC3
103, IC3
10
4,
IC3
10
6, IC3
10
7, IC3
11
0, IC3
11
3, R3
10
9
K3
103 Lo
VCP OCP
5
PS
X DRIVE Assy
IC32
0
0, IC32
0
1 (Pulse module)
In a case where PD does not occur if the P4 connector is
disconnected
Y DRIVE Assy
IC22
0
6, IC22
14
(Pulse module)
In a case where PD does not occur if the P3 connector is
disconnected
MX AUDIO Assy
IC
8
6
0
1 (Audio IC)
In a case where PD does not occur if the P6 connector is
disconnected
In a case where PD does not occur if Pin 5 of the P2
connector is disconnected
SW POWER SUPPLY Module
SW POWER SUPPLY Module
In a case where the voltage is not output even if the P4, P3,
P6 connectors and Pin 5 of the P2 connectors are
disconnected
6
ADR
ADDRESS CONNECT A~D Assy
ADDRESS CONNECT A - D Assy,
RESONANCE Assy,
D/D CONV. BLOCK (DIGITAL VIDEO Assy)
Disconnection of the D8 - D15 connectors
7
ADR K
RESONANCE Assy
TCP damage of IC6704 (ICP), disconnection of the
D16 and D17 connectors, panel microcomputer is
defective, external Flash ROM of the panel
microcomputer is defective.
8
DIGITAL
DC DC
D/D CONV. BLOCK (DIGITAL VIDEO Assy)
IC1901
K1
9
0
1 L
o
5.
0V OVP
ADR. PD
ADR. K. PD
K1
9
02 Lo
5.
0V UVP
D/D CONV. BLOCK (DIGITAL VIDEO Assy)
IC1901
K1
9
03 Lo
3.3V OVP
K1
904
Lo
3.3V UVP
D/D CONV. BLOCK (DIGITAL VIDEO Assy)
IC1901
K1
905
L
o
2.
5V OVP
K1
906
L
o
2.
5V UVP
Diagnosis of error points in the various protection-circuit (P.D. circuits) operations (Red "STANDBY/ON" LED blinks)
Note on PS PD
When the Red "STANDBY/ON" LED blinks
five times (power supply PD)
1
When the internal protection circuit of the
SW POWER SUPPLY Module worked
2
When a microcomputer was not able to
identify the PD point
↓
Care must be taken, because five blinks of
the red LED does not always mean that the
protection circuit of the SW POWER SUPPLY
Module is activated.
