DOWNLOAD Sharp AM-400 (serv.man8) Service Manual ↓ Size: 3.22 MB | Pages: 31 in PDF or view online for FREE

Model
AM-400 (serv.man8)
Pages
31
Size
3.22 MB
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PDF
Document
Service Manual
Brand
Device
Copying Equipment / Chapter 2 (Adjustments).
File
am-400-sm8.pdf
Date

Sharp AM-400 (serv.man8) Service Manual ▷ View online

AM-400DE
2 – 5
3.4. SV/DV Voltage Check Point and SV (-) Voltage Adjustment Volume
CAUTION - HIGH VOLTAGE
The unit's back cover should never be opened by anyone other than
a qualified serviceperson. There are many high voltage parts inside
the unit, and touching them is dangerous.
J22
J21
Q52
D60
D58
D1
D8
D2
D3
D4
C6
D5
D7
D9
C5
CN4
R93
J51
J12
J11
J52
C7
R15
Q3
B1
R1
J5
J6
CN3
C1
VR1
D10
CN1
D61
D53
C9
VR51
D62
J1
J3
J2
B51
C65
C31
VR31
C56
D54
D52
J4
J31
J41
R67
J42
J32
D31
Q38
R16
QJ005
QJ071
GND (-)
DV Voltage Check Point (+)
VOLTAGE
DV (+) : + 300 V ± 5 V (CLEANING)
DV (-) : - 220 V ± 5 V (PRINTING)
SV Voltage Check Point (+)
VOLTAGE
SV (+) : + 400 V ± 15 V (CLEANING)
SV (-) : - 320 V ± 15 V (PRINTING)
DV (-) Voltage adjustment Volume
VR31
It can be made to change with VR31.
In the range of ± 50V.
DV (-) : - 220 V ± 50 V (PRINTING)
AM-400DE
2 – 6
4. IC protectors replacement
ICPs (IC Protectors) are installed to protect the CIS unit, LIU PWB
unit, Scanner motor drive circuit, Pickup motor drive circuit, Main
motor drive circuit and IC22 circuit. ICPs protect various ICs and elec-
tronic circuits from an overcurrent condition.
The location of ICPs are shown below:
1) F8 (KAB5002 201) is installed in order to protect IC’s from an
overcurrent generated in the CIS unit. If F8 is open, replace it with a
new one.
2) F4 (KAB5002 251) is installed in order to protect IC’s from an
overcurrent generated in the LIU PWB unit. If F4 is open, replace it
with a new one.
3) F3 (KAB3202 202) is installed in order to protect IC’s from an
overcurrent generated in the scanner motor drive circuit. If F3 is
open, replace it with a new one.
4) F5 (KAB5002 251) is installed in order to protect IC’s from an
overcurrent generated in the IC22 circuit. If F5 is open, replace it
with a new one.
5) F6 (KAB3202 102) is installed in order to protect IC’s from an
overcurrent generated in the pickup motor drive circuit. If F6 is
open, replace it with a new one.
6) F7 (KAB2402 402) is installed in order to protect IC’s from an
overcurrent generated in the main motor drive circuit. If F7 is open,
replace it with a new one.
In addition to the replacement of F3, F4, F5, F6, F7 and F8, the fac-
tor causing F3, F4, F5, F6, F7 and F8 to open must also be
repaired. If not, F3, F4, F5, F6, F7 and F8 will open again.
Replacement parts
KAB3202 202 (Sharp code: QFS-L1027YCZZ)
KAB5002 251 (Sharp code: QFS-L2021XHZZ)
KAB3202 102 (Sharp code: QFS-L0004QCZZ)
KAB2402 402 (Sharp code: QFS-L2025XHZZ)
KAB5002 201 (Sharp code: QFS-L2016XHZZ)
5. Settings
5.1. Dial mode selector
DIAL mode (Soft Switch No. SW5 Data No. 5)
Setting is not required since the required mode is TONE ONLY.
6. Volume setting
6.1. Ringer
Like a telephone, the machine will ring to alert you when a call comes
in. To adjust the volume of the ringer or turn it off, follow the steps
below.
6.2. Alarm volume
The machine sounds a three-beep alarm to alert you when an error
occurs during fax transmission or reception. To adjust the volume of
the alarm or turn it off, follow the steps below.
CNPUM
F6
CNTCT
CNROLSNS
CNTCVR
CNMM
CNFM
CNBYPE
CNPIN
CNPW
CNIU
F4
F5
CNLSR
CNPM
CNRTH
CNOUT2
CNOUT1
CNCIS
F8
CNHV
CNSCM
CNPN
CNFRT
CNORG
CNHPS
CNSP
CNUSB
F3
F7
CONTROL PWB
(TOP SIDE)
F6/F8:Top side
F3/F4/F5/F7:Bottom side
1
Make sure that the date and time
display of fax mode appears (if needed
press
) and then press
.
2
Press
.
3
Press
(Press
in Russia and
Poland).
4
Press a number key to select the
desired volume setting:
: HIGH
: MIDDLE
: LOW
: OFF
5
Press
repeatedly to exit.
FAX
MENU
Display:
1: DATE&TIME SET
FAX SETTING
1: HIGH
The display briefly shows
your selection, then:
4: ALARM VOLUME
1
Make sure that the date and time
display of fax mode appears (if needed
press
) and then press
.
2
Press
.
3
Press
(Press
in Russia and
Poland).
4
Press a number key to select the
desired volume setting:
: HIGH
: LOW
: OFF
5
Press
repeatedly to exit.
FAX
MENU
Display:
1: DATE&TIME SET
FAX SETTING
1: HIGH
The display briefly shows
your selection, then:
1: DATE&TIME SET
AM-400DE
2 – 7
[2] Diagnostics and service soft switches
1. Entering the diagnostic mode
1.1. Fax diagnosis
This diagnosis is concerned with the main body of fax which is used
for production and service support.
Entering the diagnostic mode
1.2. Print diagnosis
This diagnosis is concerned with the print which is used for production
and service support.
Entering the diagnostic mode
Memory clear when power is turned on
Pressing the START and STOP keys, turn on the main power, and the
following message will be indicated.
When 1 is selected, the memory will be cleared to be ready to opera-
tion.
If 2 is selected, memory will not be cleared and the machine enters
standby mode.
MENU
9
8
7
ENTER
SOFT SWITCH MODE
ENTER
ROM & RAM CHECK
ENTER
PANEL CHECK MODE
ENTER
CHECK PATTERN MODE
ENTER
SIGNAL SEND MODE 1
ENTER
SIGNAL SEND MODE 2
ENTER
MEMORY CLEAR
ENTER
CIS ADJUSTING MODE
ENTER
DIAL TEST MODE
ENTER
AUTO FEEDER MODE
ENTER
FLASH MEMORY TEST
ENTER
GEAR CHANGE MODE
ENTER
FLATBED AGING
START
TE37 / x x x x or
TE39 / x x x x or
TE44 / x x x x or
TE48 / x x x x or
TE42 / x x x x
MENU
9
8
7
Press
, and the following
display will appear.
TE37 / x x x x (AM-400DE) or
START
Then press the
key. Select the desired item with the
key
and the
key or select with the rapid key.
Enter the mode with the
ENTER
key.
(Diag
specifications)
: FAX ROM version
x x x x : Check sum
DIAG MODE
COUNTRY NAME
(The alternate display of three screens.)
TE39 / x x x x (AM-400F)
or
ENTER
MESSAGE PRINT (AM-400DE/F/IT/SE only)
TE44 / x x x x (AM-400IT)
or TE48 / x x x x (AM-400SE) or
TE42 / x x x x (AM-400H)
Press
, and the following
display will appear.
MENU
9
8
6
M/C Ver:TE53
(Diag
specifications)
MENU
9
8
6
ENTER SINGLE PRINT
ENTER CONTINUOUS PRINT
ENTER COPY AGING
ENTER LIFE MODE
ENTER TOP VOID ADJUST
ENTER PRINT ADJUST
ENTER TEST MODE
START
START
ENTER
Then press the
key. Select the desired item with
the
key and the
key or select with the rapid key.
Enter the mode with the
key.
PRINT DIAG MODE
: PRINTER ROM version
M/C Ver:TE53
(The alternate display of two screens.)
MEMORY CLEAR
MEMORY CLEARING
1:CLEAR
[1] Key
[2] Key
Stand-by display
AM-400DE
2 – 8
2. Diagnostic items description
2.1. Fax diagnosis
2.1.1 Soft switch mode
In this mode, the soft switches are set and the soft switch list is printed.
1. Operation
Soft switch mode screen
2. Switch number selection and data setting
1) Enter two digits of a soft switch number to set the switch num-
ber. Of a switch number of non-existing soft switch is entered,
key error buzzer sounds to reject the input.
2) Press [ENTER] key for setting of the next soft switch.
3) Data number selection
(a) Pressing [>] key moves the cursor to the right.
If the cursor is on data number 8, pressing [>] key shifts the cur-
sor to data number 1 of the next switch number. If the switch
number is the final, pressing [>] key will exit the soft switch
mode.
(b) Pressing [<] key moves the cursor to the left.
If the cursor is on data number 1, pressing [<] key shifts the cur-
sor to data number 1 of the former switch number. If the switch
number is 1, pressing [<] key do not move the cursor.
3. Data setting
Press the [MENU] key, and the data to the position of the cursor will
be reversed to 1 when it is 0, or to 0 when it is 1.
4. Outputting method of soft switch list
In the soft switch mode, press [QUALITY] key, and the soft switch
list will be printed. If the recording paper runs out or is clogged, the
key error buzzer will sound with the process not received.
5. Storage of data
In the following cases, the data if the soft switches set will be
stored.
• It is shifted to set the next soft switch by pressing [ENTER] key.
• It is shifted to set the next soft switch with the [>] key.
• It is shifted to the last soft switch with the [<] key.
• It is shifted to set another soft switch by inputting two digits as
the switch number.
• Output of the soft switch list starts.
6. Protocol monitor
If the SW No. 8 Data No. 5 is set to 1, the protocol monitor result is
printed after fax communication.
2.1.2 ROM & RAM check
To check the sum value of Firmware or RAM.
*1 WORK MEMORY (SDRAM 16M).
1. Display
2. Result printing
After checking, the results print starts.
2.1.3 Panel key test
This is used to check whether each key is normally operated or not.
When the test is started, a LED will blink (1000ms cycle) for the LED
test. During the test. After the test, the test result will be printed.
* When any numeric key is pressed during the panel test, the DTMF
signal correspond to the key number is sent to the line. If another key
is pressed the DTMF signal will stop. This function becomes valid by
changing the value of soft switch. (Default: Disable)
1) Flow
Press any key except [STOP] key. At this time, the name of each
key will be displayed every push of the key.
a) When all keys can be inputted, the following message will be dis-
played.
Then the screen will be all displayed in blank (Refer to (2)) and the
test result will be printed.
SOFTSWITCH MODE
[ENTER] Key
SW01 = 0 1 0 1 0 0 1 0
Switch No.
1 2 3 4 5 6 7 8: Data No.
SW01 = 0 1 0 1 0 0 1 0
cursor position
SW01 =
[ 1 ] key
SW16 = 0 1 0 1 0 0 1 0
[ 6 ] key
SW01 = 0 1 0 1 0 0 1 0
cursor position
SW02 = 0 1 0 0 1 1 0 0
SW03 = 0 1 0 0 1 1 0 0
[ENTER]Key
[ENTER]Key
SW01 = 0 1 0 1 0 0 1 0
cursor position
SW02 = 0 1 0 0 1 1 0 0
SW03 = 0 1 0 0 1 1 0 0
[>]Key
with the cursor on bit8
[>]Key
SW03 = 0 1 0 1 0 0 1 0
cursor position
SW03 = 0 1 0 0 1 1 0 0
SW03 = 0 1 0 0 1 1 0 0
[<]Key
[<]Key
SW03 = 0 1 0 0 1 1 0 0
cursor position
SW02 = 0 1 0 0 1 1 0 0
SW01 = 0 1 0 0 1 1 0 0
[<]Key
with the cursor on bit 1
[<]Key
No.
Device
Alarm Buzzer
Remarks
1
Main
ROM
(PROGRAM FLASH)
1 time <Short 
sound>
2
D-RAM1(*1)
2 times <Short 
sounds>
ROM & RAM CHECK
ROM =
RAM=
Start checking
by pressing [ENTER] key
ROM=OK,RAM=OK
PRINTING
To finish this mode, press [STOP] key
PANEL CHECK MODE
PRESS EACH KEY
1
[ENTER] key
[1]Key
1
[START]Key
START
Go to (a or b).
..... (other key)
ALL KEY OK !!
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