PDP-433PU
82
1234
1234
C
D
F
A
B
E
Types and functions of the various protection circuits (P.D. circuits)
Reference
OVP : Over Voltage Protect
UVP : Under Voltage Protect
OCP : Over Current Protect
PD : Power Down
Note 1: The AC200V P.D. circuit is not mounted in the PDP-503PE and PDP-503PU models.
Assy Name
Red "STAND-
BY/ON" LED
Number of
Blinks
Type of P.D.
Circuits
Function
Remarks
Y DRIVE Assy
1 VCP OCP P.D. by VCP overcurrent
2
VOFS OVP P.D. by VOFS overvoltage
VOFS UVP P.D. by VOFS undervoltage (= overcurrent)
VH OVP P.D. by VH overvoltage
VH UVP P.D. by VH undervoltage (= overcurrent)
IC5V UVP P.D. by IC5V undervoltage (= overcurrent)
X DRIVE Assy
3
VRN OVP P.D. by VRN overvoltage
VRN UVP P.D. by VRN undervoltage (= overcurrent)
4
VCP OCP P.D. by VCP overcurrent
SW POWER SUPPLY
Module
5
VSUS OVP P.D. by VSUS overvoltage
VSUS UVP P.D. by VSUS undervoltage (= overcurrent)
VADR OVP P.D. by VADR overvoltage
VADR UVP P.D. by VADR undervoltage (= overcurrent)
15V OVP P.D. by 15V overvoltage
15V UVP P.D. by 15V undervoltage (= overcurrent)
12V UVP P.D. by 12V undervoltage (= overcurrent)
6.5V OVP P.D. by 6.5V overvoltage
6.5V UVP P.D. by 6.5V undervoltage (= overcurrent)
13 .5V UVP P.D. by 13.5V undervoltage (= overcurrent)
-9V UVP P.D. by -9V undervoltage (= overcurrent)
+B OVP P.D. by +B overvoltage
+B OCP P.D. by +B overcurrent
AC200V P.D. P.D. by AC200V applied Note 1
PFC module overheat protection
VSUS arc resistance overheat protection
ADR CONNECT Assy 6 ADR.PD P.D. by disconnection of connectors
RESONANCE Assy 7 ADR.K.PD P.D. by ICP open and TCP defective
DIGITAL VIDEO Assy 8
5.0V OVP P.D. by 5V overvoltage
5.0V UVP P.D. by 5V undervoltage (= overcurrent)
3.3V OVP P.D. by 3.3V overvoltage
3.3V UVP P.D. by 3.3V undervoltage (= overcurrent)
2.5V OVP P.D. by 2.5V overvoltage
2.5V UVP P.D. by 2.5V undervoltage (= overcurrent)
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