Read Sharp ER-A570 (serv.man6) Service Manual online
NOTE: When attaching the ER-01MB/02MB, attach the ER-02RA to
the main PWB.
3) Replace the top cabinet.
3
Mounting the ER-02RA on the ER-01MB
1) Remove the top cabinet.
2) Install the ER-02RA on the ER-01MB above the main PWB.
Mount the ER-02RA in the RAM sockets as indicated below. (Fig.
5)
5)
•
1st chip in the RAM2 socket
•
2nd chip in the RAM3 socket
•
3rd chip in the RAM4 socket
Fig. 5
Note: 1) When inserting the ER-02RA into the IC socket on the
ER-01MB, hold the ER-01MB by hand to prevent it from
warping.
warping.
3) Replace the top cabinet.
3. Operation test
1) Option RAM test
1
Key operation
20X
→
TL (X : 0~6)
JOB
#NO.
RAM NO.
Memory to be checked
Address
area to be
checked
200 Option RAM
(main)
ER-01RA
1E0000H
(
1E7FFFH
201 Option RAM
(main)
ER-02RA
1E0000H
(
1FFFFFH
202 ER-01MB
RAM1
ER-02RA+ER-01MB
1E0000H
(
21FFFFH
203 ER-01MB
RAM2
ER-02RA+
(ER-01MB+ER-02RA)
1E0000H
(
23FFFFH
204 ER-01MB
RAM3
ER-02RA+
(ER-01MB+ER-02RA
✕
2)
1E0000H
(
25FFFFH
205 ER-01MB
RAM4
ER-02RA+
(ER-01MB+ER-02RA
✕
3)
1E0000H
(
27FFFFH
206 ER-02MB
ER-02RA+ER-02MB
1E0000H
(
2FFFFFH
2
Content
The following check are performed for the optional RAM. Do not
change the memory contents before and after this check JOB.
The following process is performed for memory address to be
checked.
The following check are performed for the optional RAM. Do not
change the memory contents before and after this check JOB.
The following process is performed for memory address to be
checked.
PASS1: memory data save
PASS2: Data "00H" write
PASS3: Data "00H" read and comparison, data "55H" write
PASS4: Data "55H" read and comparison, data "AAH" write
PASS5: Data "AAH" read and comparison
PASS6: Memory data restore
PASS2: Data "00H" write
PASS3: Data "00H" read and comparison, data "55H" write
PASS4: Data "55H" read and comparison, data "AAH" write
PASS5: Data "AAH" read and comparison
PASS6: Memory data restore
If a compare error is found in the check sequence from PASS1 to
PASS6, error print (error code E1) is performed. If there is no error
found to the end of the last address, the operation is completed
normally.
PASS6, error print (error code E1) is performed. If there is no error
found to the end of the last address, the operation is completed
normally.
Then the following address check is performed by judging the
option chip to be integrated. The check point addresses are as
follows:
option chip to be integrated. The check point addresses are as
follows:
Check
Address
ϑΟΒ200 ϑΟΒ201 ϑΟΒ202 ϑΟΒ203 ϑΟΒ204 ϑΟΒ205 ϑΟΒ206
1E0000H
♠
♠
♠
♠
♠
♠
♠
1E0001H
♠
♠
♠
♠
♠
♠
♠
1E0002H
♠
♠
♠
♠
♠
♠
♠
1E0004H
♠
♠
♠
♠
♠
♠
♠
1E0008H
♠
♠
♠
♠
♠
♠
♠
1E0010H
♠
♠
♠
♠
♠
♠
♠
1E0020H
♠
♠
♠
♠
♠
♠
♠
1E0040H
♠
♠
♠
♠
♠
♠
♠
1E0080H
♠
♠
♠
♠
♠
♠
♠
1E0100H
♠
♠
♠
♠
♠
♠
♠
1E0200H
♠
♠
♠
♠
♠
♠
♠
1E0400H
♠
♠
♠
♠
♠
♠
♠
1E0800H
♠
♠
♠
♠
♠
♠
♠
1E1000H
♠
♠
♠
♠
♠
♠
♠
1E2000H
♠
♠
♠
♠
♠
♠
♠
1E4000H
♠
♠
♠
♠
♠
♠
♠
1E8000H
—
♠
♠
♠
♠
♠
♠
1F0000H
—
♠
♠
♠
♠
♠
♠
200000H
—
—
♠
♠
♠
♠
♠
210000H
—
—
♠
♠
♠
♠
♠
220000H
—
—
—
♠
♠
♠
♠
240000H
—
—
—
—
♠
♠
♠
260000H
—
—
—
—
—
♠
♠
280000H
—
—
—
—
—
—
♠
"
♠
" in the table shows that the check point address in the horizon-
tal column is valid, and "—" shows it is invalid.
When any error occurs in this address check, error code E2 is
printed.
When any error occurs in this address check, error code E2 is
printed.
3
Check the following items.
Check the termination print.
Check the termination print.
4
Test termination
The test terminates after printing the termination printout.
The test terminates after printing the termination printout.
Termination print
Normal termination
20X
Abnormal termination
EY– – – –
20X
❈❈❈❈❈❈
20X: JOB # (200~206)
Y:
Y:
Error code
Note: When an error occurs error print is performed and the error
address is displayed in position
❈❈❈❈❈❈
in hexadecimal.
5
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