Number
of
Blinks
P.D. Point in
Operation
Error Pont Possible Part of Error Circuit State
Operation
P.D. Circuit
Diagnosis Condition
1 Y DRIVE
IC2206, IC2214 (Pulse module), IC2203, IC2204,
IC2212, IC2213, IC2213, IC2217, R2209
K2211 Lo VCP OCP
2 Y DC DC
VOFS D/D CONV. BLOCK (Y DRIVE Assy) IC2702, IC2709, IC2715 K2712 Lo VOFS OVP
VOFS D/D CONV. BLOCK (Y DRIVE Assy)
IC2701, IC2702, IC2709, IC2715
K2709 Lo VOFS UVP
Drive section (control signal, output elements etc.) in
normal operation
Q2211, Q2212, R2277, IC2208, IC2210 VOFS D/D CONV. BLOCK in normal operation
VH D/D CONV. BLOCK (Y DRIVE Assy) IC2712, IC2716 K2719 Lo VH OVP
VH D/D CONV. BLOCK (Y DRIVE Assy) IC2711, IC2712, IC2716
K2718 Lo VH UVP
Drive section (control signal, output elements etc.) in
normal operation
SCAN (A), (B) Assy SCAN IC VH D/D CONV. BLOCK in normal operation
IC5V D/D CONV. BLOCK (Y DRIVE Assy) IC2704, IC2706, IC2717 SCAN Assy in normal operation
SCAN (A), (B) Assy
Y DRIVE Assy
SCAN IC
K2713 Lo IC5V UVP
IC5V D/D CONV. BLOCK in normal operation
IC5V D/D CONV. BLOCK (Y DRIVE Assy) IC2704, IC2706, IC2717 SCAN Assy in normal operation
3 X DC DC
VRN D/D CONV. BLOCK (X DRIVE Assy) IC3702, IC3712 K3708 Lo VRN OVP
VRN D/D CONV. BLOCK (X DRIVE Assy) IC3701, IC3702, IC3712
K3705 Lo VRN UVP
Drive section (control signal, output elements etc.) in
normal operation
X DRIVE Assy Q3122 VRN D/D CONV. BLOCK in normal operation
4 X DRIVE X DRIVE Assy
IC3200, IC3201 (pulse module), IC3103, IC3104,
IC3106, IC3107, IC3110, IC3113, R3109
K3103 Lo VCP OCP
Q3122 K3102 Lo VRN OCP
5
PS
X DRIVE Assy IC3200, IC3201 (Pulse module)
When P4 connector disconnected, P.D. does not occur
Y DRIVE Assy IC2206, IC2214 (Pulse module)
When P3 connector disconnected, P.D. does not occur
MX AUDIO Assy IC8601 (Audio IC)
When P6 connector disconnected, P.D. does not occur
When pin 5 of P2 connector disconnected, P.D. does
not occur
SW POWER SUPPLY Module SW POWER SUPPLY Module When the voltage is not output even if P4, P3 and P6
connectors disconnected
6 ADR ADDRESS CONNECT A~D Assy
ADDRESS CONNECT A - D Assy,
RESONANCE Assy,
D/D CONV. BLOCK (DIGITAL VIDEO Assy)
Disconnect D8 - D15 connectors
7 ADR K RESONANCE Assy
TCP damage of IC6704 (ICP), disconnect D16 and
D17 connectors, panel microcomputer is defective,
outside Flash ROM of the panel microcomputer is
defective.
8 DIGITAL
DC DC
D/D CONV. BLOCK (DIGITAL VIDEO Assy) IC1901
K1901 Lo
5.0V OVP
ADR. PD
ADR. K. PD
K1902 Lo 5.0V UVP
D/D CONV. BLOCK (DIGITAL VIDEO Assy) IC1901
K1903 Lo 3.3V OVP
K1904 Lo 3.3V UVP
D/D CONV. BLOCK (DIGITAL VIDEO Assy) IC1901
K1905 Lo 2.5V OVP
K1906 Lo 2.5V UVP
Diagnosis of the error point in the various protection circuit (P.D. circuit) operation (Red LED blinks)
Note: About PS PD
The condition that Red LED blinks five times
(power supply PD)
1 When the internal protection circuit of SW
POWER SUPPLY Module worked
2 When a microcomputer was not able to
identify the PD point
↓
Being careful because the protection circuit
of SW POWER SUPPLY Module cannot
conclude that worked.
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