Sharp UP-5900 (serv.man8) Service Manual ▷ View online
UP-5900VS
DIAGNOSTICS SPECIFICATIONS
4 – 5
3-8. CLERK KEY DIAGNOSTICS
(European model only)
The clerk key input test is performed.
Pressing the Esc key returns to the serviceman diagnostics menu.
1) CLERK KEY CHECK
1
Checking content
Key code inserted to the clerk key switch which is then displayed in
a decimal value.
2
Display
The clerk code is displayed at XX.
3
Terminating method.
Press the Esc key to terminate and return to the service diagnostics
menu.
3-9. PRINTER DIAGNOSTICS
The parallel interface (standard) is tested.
The following menu is displayed.
The highlighted cursor is moved by the cursor keys (UP
2
and DOWN
4
)
on the PS2 keyboard. Move the cursor to the desired item and press the
Enter key to execute the selected diagnostics program.
Enter key to execute the selected diagnostics program.
When the selected diagnostics program is completed, the display
returns to the menu screen. Pressing the Esc key returns to the service
diagnostics menu.
1) PARALLEL LOOP BACK CHECK
1
Checking content
To check the parallel port DSub 25 pin, use the connector (UKOG-
2366BHZZ) for Parallel Loop Back Test.
Wiring is as shown below:
Perform the loop back check with the following combination of paral-
lel ports (standard provision).
lel ports (standard provision).
2
Display
3
Terminating method.
Press the Esc key to terminate and return to the Printer diagnostics
menu.
menu.
2) PARALLEL Print Check
1
Checking content
The print check is performed for the standard port PARALLEL at I/O
address 378H ~ 37FH. In the print check mode the D-Sub 25 pin
connector is connected with a printer to allow a print pattern test.
connector is connected with a printer to allow a print pattern test.
The test procedures are as follows:
i.
Data of 55H is written to I/O address 378H, and the same
address is read. If the read data is not 55H, “PARALLEL Chan-
address is read. If the read data is not 55H, “PARALLEL Chan-
nel Disabled” is displayed and the following check is not per-
formed.
ii.
Characters of 20H ~ 7FH (ASCII code) are printed and the line
is changed.
is changed.
This procedure is repeated for 5 times.
2
Display
“PARALLEL Channel Disabled” is displayed only when no access to
PARALLEL is allowed.
3
Terminating method.
Press the Esc key to terminate and return to the Printer diagnostics
menu.
Clerk Key Check
Clerk Key Code : xx
Printer Diagnostics
PARALLEL Loop Back Check
PAR ALLEL Print Check
Option(UP-T80BP)
Print Check
Standard
(D0) – (STROBE#)
(D1) – (AF#)
(D2) – (INIT#)
(D3) – (SLCTIN#)
(D4) – (ERROR#) – (SLCT)
(D5) – (PE)
(D6) – (ACK#)
(D7) – (BUSY)
Printer Diagnostics
PARALLEL Loop Back
D0-STROB
: OK! (or ERROR!)
D1-AF
: OK! (or ERROR!)
D2-INT
: OK! (or ERROR!)
D3-SLCTN
: OK! (or ERROR!)
D4-ERROR & SLCT
: OK! (or ERROR!)
D5-PE
: OK! (or ERROR!)
D6-ACK
: OK! (or ERROR!)
D7-BUSY
: OK! (or ERROR!)
PAR ALLEL Print Check
PAR ALLEL Channel Disabled
UP-5900VS
DIAGNOSTICS SPECIFICATIONS
4 – 6
3) UP-T80BP TEST
1
Display
On the above screen the setting appears in the box.
The Count can be set from “01” up to “99”. If “00” is set, printing
does not stop until the ESC key is pressed.
2
Testing
The following patterns are printed and the paper cut command is
sent by the specified number of times to the Serial output of I/O
address 980H to 987H.
address 980H to 987H.
3
Error message
The following error message appears if a communication error
occurs with the UP-T80BP.
occurs with the UP-T80BP.
4
End of testing
The testing is finished after printing is made by the specified number
of times or by pressing the ESC key.
of times or by pressing the ESC key.
3-10. SERIAL I/O DIAGNOSTICS
The serial interface of UP-5900 is performed. To test the 9pin D-Sub
port, connect the D-Sub loop back connector (UKOG-6705RCZZ).
To test the RJ45 port, connect the loop back connector (UKOG-
6729BHZZ).
6729BHZZ).
Loop back connector (UKOG-6705RCZZ) wiring diagram
Loop back connector (UKOG-6729BHZZ) wiring diagram
The UP-5900’s 9-pin D-sub ports are used as COM1 and 2. The UP-
5900 also provides a RJ45 port is used as COM3.
The following menu is displayed.
The highlighted cursor is moved by the cursor keys (UP
2
and DOWN
4
)
of the PS2 keyboard. Move the cursor to the desired item, and press the
Enter key to execute the selected diagnostics program.
When the selected diagnostics program is completed, the display
returns to the menu screen. Pressing the Esc key returns to the service
diagnostics menu.
diagnostics menu.
Count ? = 01 (00-99)
Pass Count = XX
Hit ESC Key to Stop
Print Check
Y O U R R E C E I P T
T H A N K Y O U
**********
**********
UP-T80BP I/F ERROR
Hit ESC Key to Stop
Print Check
CD 1pin
RD 2pin
TD 3pin
DTR 4pin
GND 5pin
DSR 6pin
RTS 7pin
CTS 8pin
RI 9pin
RTS
DTR
TD
GND
GND
RD
DSR
CTS
DTR
TD
GND
GND
RD
DSR
CTS
1pin
2pin
3pin
4pin
5pin
6pin
7pin
8pin
2pin
3pin
4pin
5pin
6pin
7pin
8pin
Serial I/O Diagnostics
COM1 Check
COM2 Check
COM3 Check
UP-5900VS
DIAGNOSTICS SPECIFICATIONS
4 – 7
1) COM1 CHECK
1
Content
The loop back check is performed for the UART at I/O address
3F8H ~ 3FFH. The test procedures are as follows:
3F8H ~ 3FFH. The test procedures are as follows:
i.
UART setting is made. If access is denied to UART at that time,
“COM1 Disabled” is displayed and the following check is not
performed.
ii.
RTS signal is turned on/off to check that CD, CTS signal is nor-
mally operating. In case of any abnormality, ERROR is dis-
mally operating. In case of any abnormality, ERROR is dis-
played.
iii. DTR signal is turned on/off to check that DSR, RI signal is nor-
mally operating. In case of any error, ERROR is displayed.
When an error occurs in procedure i or ii, the following test is
not performed.
not performed.
iv. Set the baud rate to 19200bps asynchronous. 256 byte data of
00H ~ FFH is transmitted from SD signal. Data received at RD
signal is compared to check that the both are the same. If the
output data is not returned for 5 sec or more, an ERROR is dis-
output data is not returned for 5 sec or more, an ERROR is dis-
played and the test is terminated.
v.
An interruption signal is issued from UART and the number of
generated interruption request signal is displayed.
2
Display
The number of the interruption request signal is displayed at XX.
If no access is allowed to COM1 UART, the following display is
made.
3
Terminating method.
Press the Esc key to terminate and return to the Serial I/O diagnos-
tics menu.
2) COM2 CHECK
1
Checking content
The loop back check is performed for the UART at I/O address
2F8H ~ 2FFH. The check procedure, the display, and the terminat-
2F8H ~ 2FFH. The check procedure, the display, and the terminat-
ing method are the same as COM1 Check.
3) COM3 CHECK
1
Checking content
The loop back check is performed for the UART at I/O address
3E8H.
3E8H.
When the RJ-45 port of the UP-5900 main unit is assigned to
COM3, the following points are different from COM1 Check :
1
Content
• RTS-CTS is not checked.
• DTR-RI is not checked.
2
Display
• RTS-CTS is not displayed.
• DTR-RI is not displayed.
COM3 is checked as well as COM1 except at the above 2 points.
3-11. LIQUID CRYSTAL DISPLAY DIAGNOSTICS
LCD test is performed.
The following patterns are displayed in sequence. Pressing the space
bar proceeds to the next display. Pressing the space bar at the final pat-
tern or pressing the Esc key during the test, will return the display to the
tern or pressing the Esc key during the test, will return the display to the
service diagnostics menu.
1) LIQUID CRYSTAL DISPLAY CHECK
1
Checking content
The test patterns are displayed in the following test procedures.
Pressing the space bar moves to the next pattern.
i.
Black-and-white pattern in 1 dot interval
ii.
Reversed pattern of pattern i.
iii. Vertical stripe pattern in 1 dot interval
Serial I/O COM1 Check
RTS - CD : PASS !!(or ERROR !!)
DTR - DSR : PASS !!(or ERROR !!)
TD - RD : PASS !!(or ERROR !!)
INTERRUPT : IRQ XX
RTS - CTS : PASS !!(or ERROR !!)
DTR - RI : PASS !!(or ERROR !!)
Serial I/O COM1 Check
COM1 Channel Disabled
UP-5900VS
DIAGNOSTICS SPECIFICATIONS
4 – 8
iv. Reversed pattern of pattern iii.
v.
Horizontal stripe pattern in 1 dot interval
vi. Reversed pattern of pattern v.
vii. “H” pattern (80 digits x 35 lines) In the 35th line, only 78 digits of
“H” are displayed.
(The actual display range is 25 lines. Scroll for 10 lines to
check.)
viii. Gradation pattern from black to white in 16 gradations
ix. All white pattern
x.
Color bar (16 colors)
Color bars of 16 colors are displayed.
xi. Color pattern (256 colors)
Color pattern of 256 colors is displayed. The displayed colors
are the default pallet.
Arrange RAMDAC register No. 0 ~ 255 from the upper left.
xii. Backlight OFF
The backlight is turned off without turning off the display.
xiii. Backlight ON
2
Terminating method
Press the space bar or Esc key to terminate and return to the ser-
vice diagnostics menu.
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
Bl
ack
Bl
ue
Gr
e
e
e
n
Cy
an
an
Red
M
age
nta
Brown
W
h
h
ite
Gr
a
a
y
Light blue
Light gre
e
n
Light cyan
Light red
Light m
age
nta
Light ye
llow
Light white
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