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SERVICE CODES DETAILS _ Self Diagnosis Function
The PFM-500A3W/510A2W has the self diagnosis function using
A/D converter to detect the power supply analog voltages, 8 channels of
temperature sensor, fan operations, power unit temperature, DC voltage status,
and to check the EEPROM and the watch register. When any
abnormality occurs or defect is detected, the Error Code
appears on the service code indicator of the power supply block, the standby
indicator on the control panel flashes and the detected data is displayed on
the service menu [STATUS/TEST] block. If the abnormal status exceeds
the allowable limit, the PFM-500A3W/510A2W is forced to shut
down.
Increase and decrease of the panel DC voltage Vs is
detected.
(Name of this function on the service menu : POWER SUPPLY -
PDP VS)
PFM-510A2W
The normal operating range is +160 V +24 V/_22 V.
Warning of increase of the voltage Vs when 184 V or more :
Service code [11]
Warning of decrease of the voltage Vs when 138 V or less :
Service code [12]
PFM-500A3W
The normal operating range is +175 V +26 V/_23 V.
Warning of increase of the voltage Vs when 201 V or more :
Service code [11]
Warning of decrease of the voltage Vs when 152 V or less :
Service code [12]
Increase and decrease of the panel DC voltage Va is
detected.
(Name of this function on the service menu : POWER SUPPLY -
PDP VA)
The normal operating range is +60 V +15 V/_14 V.
Warning of increase of the voltage Va when 75 V or more :
Service code [21]
Warning of decrease of the voltage Va when 46 V or less :
Service code [22]
Increase of temperature at the side of the power block in
the top of the panel is detected and shut down of the machine.
TEMPERATURE - P/S BLOCK SIDE)
The normal operating range is up to 57 °C.
Warning of high temperature when 58 °C or higher : Service
code [31]
Shut down at the temperature of 68 °C or higher : Service
code [39]
Increase of temperature at the center in the top of the
panel is detected and shut down of the machine.
TEMPERATURE - CENTER)
The normal operating range is up to 55 °C.
Warning of high temperature when 56 °C or higher : Service
code [A1]
Shut down at the temperature of 66 °C or higher : Service
code [A9]
Increase of temperature at the side of the input connector
block in the top of the panel is detected and shut down of the machine.
TEMPERATURE - I/O BLOCK SIDE)
The normal operating range is up to 53 °C.
Warning of high temperature when 54 °C or higher : Service
code [41]
Shut down at the temperature of 64 °C or higher : Service
code [49]
Detection of outside environment temperature.
TEMPERATURE - AMBIENT TEMP)
Occurrence of abnormality and fault is judged solely from
the internal temperature of the PFM-500A3W/510A2W. Measurement of the ambient
temperature aims mainly at the confirmation of the operating environment.
Therefore, there is no chance to indicate this warning message.
Warning of high temperature at 60 °C or higher : Service
code [F1]
Detection of fan stop and that of drive circuit
failure. Three fans at the top of the
panel and two fans for power supply.
BLOCK SIDE, CENTER, P/S BLOCK SIDE, No. 1, No. 2)
Status of the respective fans are displayed as OK or NG on
the service menu STATUS.
Fan of the power supply block at the top of the rear of the
machine : Service code [55]
Fan in the center of the top on the rear of the machine :
Service code [54]
Fan on the input terminal at the top on the rear of the
machine : Service code [53]
Two fans of the power supply block : Service code [52] or
[51]
Detection of fan drive circuit failure
(Name of this function on the service menu : FAN - DRIVE
CIRCUIT)
The warning when the fan drive data is 6 V or more and the
actual drive voltage is 2 V or less : Service code [58]
Detection of temperature rise in the power supply block.
TEMPERATURE - P/S INTERNAL)
Warning of high temperature when temperature of the heat
sink for main converter inside the power supply unit exceeds the allowable
limit : Service code [61]
Shut down when the 5 V for internal digital circuit has
abnormality.
POWER SUPPLY - DIGITAL 5V)
The voltage that is input to pin-62 of the system controller
(IC252) is detected.
Shut down when there is no input voltage : Service code [79]
Detection of failure of the EEPROM
Warning when communication with EEPROM cannot be performed
normally.
EEPROM ID code error: Service code [81]
EEPROM data write error: Service code [82]
EEPROM data read error: Service code [83]
EEPROM failure: Service code [85]
Detection of abnormality in communication with scan
converter.
(Name of this function on the service menu : Nil)
Warning when communication with scan converter cannot be
performed normally.
EEPROM ID code error : Service code [91]
Detection of failure in the ON/OFF control of power supply.
(Name of this function on the service menu : Nil)
When the digital 5 V power does not decrease even in the
STBY state, the machine enters the POWR ON state automatically : Service code
[98]
Detection of decreased backup power supply voltage for watch
and detection of abnormality in oscillator.
(Name of this function on the service menu : Nil)
Normal/abnormal is detected from the register value inside
the watch IC.
Initialization of time due to abnormal register value :
Service code [B1]
Warning of low voltage of backup power supply : Service code
[B2]
Warning that crystal oscillator for watch has stopped :
Service code [B3]
Detection of PDP failure using the combination of the
voltage detection and shut down of the machine.
(Name of this function on the service menu : Nil)
PDP is suspected to be defective when DIGITAL 5 V is normal
among the voltages (VS, VA, DIGITAL 5V) required to drive PDP while both VS and
VA are not inputted. When all the
following conditions are satisfied, the machine enters once to the STANDBY mode
then turn the main power back on again.
1) DC 180 V power is 40 V or less.
2) DC 70 V power is 20 V or less.
3) DIGITAL 5 V is normal.
The above-described operation is repeated three times. If the above three conditions are still
satisfied, the PDP is judged to be faulty and the main power is shut down. Service code [99]
