ELCOM Euro-2000T Alpha Service Manual page 82

head up error
•
incorrect head position
the connector of printer is not well connected
CNN12, R43, RS7 and U1 connection damage
U1 damage
head up switch damage
•
overheat error continually
the connector of printer is not well connected
CNN11, R47, R59, RS7,T10 and U1 connection damage
U1 or T10 damage
printer thermistor damage
7.4. Problems in display.
7.4.1. Euro-2000T Alpha problems in display.
• the same fault in both displays
incorrect or incomplete display connection
the CPU and CNN6 connection damage
incorrect control of signals LCD-CLK, LCD-SEL or DATA
C-D2000Alpha on Alpha Display PCB damage
E-2000N damage
characters are not displayed correctly on the operator display
•
incorrect connection of Alpha Display to PCB
Alpha display unit damage
U1 on Alpha Display PCB damage
segments are not displayed correctly on the customer display
•
the displays PCB interconnection cable damage
U1to LCD connection damage
LCD damage
U1 on the Segment Display PCB damage
U1 on the Alpha Display PCB damage
7.4.2. Euro-1000T problems in display.
the same fault in both displays
•
incorrect or incomplete display connection
the CPU and CNN6 connection damage
the CPU damage
some segments are out of action in just one of displays
•
U1and corresponding LCD pins connection damage
LCD damage
U1 on display PCB damage
• operator display out of action
incorrect or incomplete display connection
U1and corresponding LCD pins connection damage
LCD damage
U1 on display PCB damage
customer display out of action
•
the interconnecting cable damage
U1and corresponding LCD pins connection damage
LCD damage
U1 on display PCB damage
82
Euro-2000T Alpha/1000T
check the correct position of head
make sure the connector contact well to CNN12
replace U1
replace head up sensor assembly
make sure the connector contact well to CNN11
check the connection according to scheme (chapter 2.3.1)
replace damaged part
replace the thermal head
check the Alpha Display PCB connection to Keyboard PCB
connector or check the Keyboard PCB connection to CNN6
(KEYBOARD)
check and repair the connection
check the connection of U1, RS2, RS4, RS10 and CNN6
replace E-2000N
check the connection according to scheme (chapter 2.3.3.)
replace display unit
replace U1 on the Segment Display PCB
replace U1 on the Alpha Display PCB
check the display connection to keyboard PCB CNN6
check and repair the connection
check the display connection to keyboard PCB CNN6
Service manual
check the connection according to scheme (chapter 2.3.1)
replace C-D2000Alpha
replace U1 on Alpha Display PCB
check and repair the interconnection cable
check the connection according to scheme (chapter 2.3.3.)
replace the LCD
replace the microcontroller
check the connection according to scheme (chapter 2.3.3.)
replace the LCD
replace the U1 (NJU6432BF)
check the connection according to scheme (chapter 2.3.3.)
replace the LCD
replace the U1 (NJU6432BF)
check or replace the interconnecting cable
check the connection according to scheme (chapter 2.3.3.)
replace the LCD
replace the U1 (NJU6432BF)
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