Read Sharp UP-800 (serv.man23) Service Manual online
UP-820N/820F (V)
DIAGNOSTICS SPECIFICATIONS
5 – 4
(2) Touch Panel Test (Certification Test)
1 Check content
Draw a picture. The touched line is displayed in black, and the rest
of the display in white.
of the display in white.
2 Termination method
When any key is pressed, the operation is terminated.
3-6. RS232 I/F DIAGNOSTICS
This diagnostics program is used to check the RS232C interface of the
sub PWB.
The connector is available in 9-pin D-Sub and RJ-45.
The connector is available in 9-pin D-Sub and RJ-45.
Connect the 9-pin D-Sub loopback connector (UKOG-6717RCZZ)
shown in Fig. 3-11 Wiring diagram to the check port.
For the RS port of the RJ-45, use the RJ45 loopback connector shown
For the RS port of the RJ-45, use the RJ45 loopback connector shown
in Fig. 3-12 Wiring diagram to check.
Fig. 3-11 Wiring diagram of loop back connector (UKOG-6717RCZZ)
Fig. 3-12 Wiring diagram of loopback connector (RJ45)
* CH& is only for the UP-3500. Since CH5 is the exclusive port for the
pole display UPP20DP, check it with “3-8 (1) 20DP Display Check.”
(1) CH1 Check
1 Checking
If any channel is not set, the error message (ERROR: CH1)
appears.
When any channel is set, the following checks are performed.
When any channel is set, the following checks are performed.
i. Control signal check
The read check of the above input and the interruption check of CS,
CI, and CD are performed.
CI, and CD are performed.
In the read check, ER and RS are changed over in the above
sequence and the logics of DR, CI, CD, and CS are checked. If the
logic differs from that in the table, ERROR is displayed. ON in the
logic differs from that in the table, ERROR is displayed. ON in the
table indicates ACTIVE LOW, and OFF means HIGH.
In the interruption check, an interruption of CS, CI, or CD is allowed
one by one. (MASK is canceled.)
one by one. (MASK is canceled.)
If no interruption is made when each signal is active, or if an inter-
ruption is generated when non-active, ERROR is displayed.
The above check is repeated in 4 cycles.
The above check is repeated in 4 cycles.
ii. Data transfer check
Loopback data transfer of 00H-0FFH (256 bytes) is performed. The
baud rate is set to 38400 BPS.
iii. Timer check (RS232 on-board timer)
The timer is booted by RCVDT before performing CHECK ii. Set to
5ms, and perform the following check.
• During execution of CHECK ii, TRQ- must not be generated.
• After completion of CHECK ii, TRQ- must be generated in 5ms.
2 Display
All the details of errors are printed on the journal.
3 How to exit the program
Press the CANCEL key to exit the program.
ERn
RSn
DRn
Cin
CDn
CSn
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
ON
ON
OFF
ON
ON
OFF
OFF
ON
ON
ON
ON
ON
ON
CD
RD
SD
ER
GND
DR
RS
CS
CI
RD
SD
ER
GND
DR
RS
CS
CI
1pin
2pin
3pin
4pin
5pin
6pin
7pin
8pin
9pin
2pin
3pin
4pin
5pin
6pin
7pin
8pin
9pin
ERROR
No.
ERROR print
Details of ERROR
1
ER-DR : ERROR
ER-DR LOOP ERROR
2
ER-CI : ERROR
ER-CI LOOP ERROR
3
RS-CD : ERROR
RS-CD LOOP ERROR
4
RS-CS : ERROR
RS-CS LOOP ERROR
5
CI INT : ERROR
No CI interrupt occurs.
6
CD INT : ERROR
No CD interrupt occurs.
7
CS INT : ERROR
No CS interrupt occurs.
8
TXEMP : ERROR
TXEMP is not set.
9
TXEMP INT : ERROR
TXEMP interrupt does not occur.
10
TXRDY : ERROR
TXRDY is not set.
11
TXRDY INT : ERROR
TXRDY interrupt does not occur.
12
RCVRDY : ERROR
RCVRDY is not set.
(Not possible to receive.
TRQ- occurs during the implemen-
tation of check ii.)
(Not possible to receive.
TRQ- occurs during the implemen-
tation of check ii.)
13
RCVRDY INT : ERROR RCVRDY interrupt does not occur.
14
SD-RD : ERROR
SD-RD LOOP ERROR
(DATA ERROR)
(DATA ERROR)
15
SD-RD : ERROR
SD-RD LOOP ERROR
(DATA ERROR,
FRAMING ERROR etc.)
(DATA ERROR,
FRAMING ERROR etc.)
16
TIMER : ERROR
TIMER ERROR
(After completion of CHECK ii,
TMRQ- is not set.)
(After completion of CHECK ii,
TMRQ- is not set.)
17
TIMER INT : ERROR
TRQ1- interrupt does not occur.
45%*%JGEM
㩷
'4
&4'4414
㩷
Click on the first or last page to see other UP-800 (serv.man23) service manuals if exist.