PDP-5000EX
86
1234
1234
C
D
F
A
B
E
5.3.2 SHUT DOWN OF FAILURE ANALYSIS
SD (SHUTDOWN) DIAGNOSIS (1/2)
Drive stop with the right
Sequence Processor
SQNO/R
Check if the video sync signal is input to IC3302.
CN3001, CN3002, IC3002,
IC3101, IC3301, IC3410
Frequency of
LED Flashing
Major Type Detailed Type
Log Indication in Factory Mode
Checkpoint
Possible Defective
Part
Remarks
MAIN SUB
Blue 1
Abnormality in the
Sequence Processors
Communication error with the
left and right Sequence
Processors
SQ-IC
RTRY CLK_SQ/TXD_SQ, etc. IC3201, IC3301, IC3703
The communication between IC and the left and right Sequence
Processors is not established. (It is likely that IC3703 [sender] is in
failure, because communication is not established, neither that for the left
nor right Sequence Processor.)
Drive stop with the left and right
Sequence Processors
SQNO Check if the video sync signal is input to IC3101.
CN3001, CN3002,
IC3001, IC3002, IC3101
If signal detection by the module microcomputer is properly performed,
the unit operates on an external sync. (Or both sides of the right part of
the screen, whose sync is not monitored, may be abnormal.)
Busy BUSY BUSY_SQ IC3201, IC3301, IC3703 If BUSY_SQ remains high, a shutdown is generated.
Communication error with the
left Sequence Processor
RTRY/L RXD_AL IC3201, IC3409, IC3703
"RXD_AL" has not been transmitted to the module microcomputer
("RXD_AR" has been transmitted).
It is likely that IC3201 is not normally started.
Drive stop with the left Sequence
Processor
SQNO/L Check if the video sync signal is input to IC3201.
CN3001, CN3002, IC3002,
IC3101, IC3201, IC3409
A shutdown is generated if IC3201 is not normally started
(communication error with IC3409 [flash memory]). (Or both sides of the
right part of the screen, whose sync is not monitored, may be abnormal.)
Incoherent version
(hardware, software)
VER-HS
Check the model number of the Digital Assy and the
destination of the sequence processors.
IC3101, IC3301 The written SQ_PROG is incoherent with data on the DIGITAL Assy.
Incoherent version (software, with the
left and right Sequence Processors)
VER-LR
Check the versions of the left and right sequence
programs.
–
Different sequence programs are written on the left and right Sequence
Processors.
Communication error with the
right Sequence Processor
RTRY/R RXD_AR IC3301, IC3410, IC3703
"RXD_AR" has not been transmitted to the module microcomputer
("RXD_AL" has been transmitted).
It is likely that IC3301 is not normally started.
A shutdown is generated if IC3301 is not normally started
(communication error with IC3410 [flash memory]). (Or both sides of the
right part of the screen, whose sync is not monitored, may be abnormal.)
Blue 2
Failure in IIC
communication with the
module microcomputer
DIGITAL Assy EEPROM
MD-IIC
EEPROM IIC communication line of IC3701 IC3701, IC3703
Check the pull-up resistor of the IIC control line and the power to the
corresponding IC.
PANEL SENSOR Assy EEPROM
BACKUP IIC communication line of IC3902 IC3902, IC3703
DAC DAC IIC communication line of IC3706 IC3706, IC3703
Blue 3
Abnormality in RST2
power decrease
– RST2 –
Is the output voltage of the DC-DC converter low? AXY1138
If RST2 does not become high after the unit is turned on, a shutdown will
be generated in several seconds.
The 12 V power is not output. POWER SUPPLY Unit Check if V + 12 V is started.
Blue 4
High temperature of the
panel
– TMP_NG TEMP1
Ambient temperature –
If TEMP1 that is read by the module microcomputer is 75°C or higher, a
shutdown will be generated.
Abnormality in the panel temperature sensor IC3901 Check the connection with the PANEL SENSOR Assy.
Blue 5
Short-circuiting of the
speakers
– AUDIO –
Speaker terminals CN8402, CN8502 Check if any speaker cable is in contact with the chassis.
AUDIO_AMP IC8001, IC5002 Check if the AMP output is short-circuited.
Periphery of the cable between A2 and M8 CN8002, CN4008 Check if cables are firmly connected.
Blue 6
Failure in communication with
the module microcomputer
– MODULE –
Communication line between MAIN and MOD IC3703, IC5002 Check the communication lines (TXD_MOD/RXD_MOD/REQ_MOD).
Periphery of the cable between D11 and M2 CN3703, CN4207 Check if cables are firmly connected.
Blue 7
Failure in main
microcomputer 3-wire
serial communication
IF microcomputer
MA_SRL
IF Communication line between IF and MAIN IC4803, IC5002
Check the communication lines
(TXD_IF/RXD_IF/CLK_IF/BUSY_IF/CE_IF/REQ_IF).
MULTI
MULTI Communication line between MULTI_M and MAIN IC6202, IC5002
Check the communication lines
(TXD_IC3/RXD_IC3/CLK_IC3/CE_IC3/IC3_BUSY).
I/P Bus communication line between IP and MULTI_M IC6001, IC6402, IC6202 Check the communication lines (EXA/EXDIO).
D_SEL Communication line between D_SEL and MULTI_M IC5802, IC6202 Check the communication lines (TXD_IC6/RXD_IC6/CLK_IC6/CE_IC6).
SLAVE
Bus communication line between MULTI_S and
MULTI_M
IC6001, IC6402, IC6202 Check the communication lines (EXA/EXDIO).
FPGA
FPGA2 Communication line between FPGA and MULTI_M IC6602, IC6202 Check the communication lines (FTXD/FRXD/FCLK/FCE).
FPGA1 Config. communication line between FPGA and MAIN IC6601, IC5002
Check the communication lines (DCLK_FPGA1/DATA_FPGA1/
nSTATUS/CONF_DONF_DONE/nCONF).
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