Adjustments - Sharp FACSIMILE UX-108 Service Manual

UX-108DE
CHAPTER 2. ADJUSTMENTS

[1] Adjustments

General
Since the following adjustments and settings are provided for this model,
make adjustments and/or setup as necessary.
1. Adjustments
Adjustments of output voltage (FACTORY ONLY)
1. Install the power supply unit in the machine.
2. Set the recording paper and document.
3. When the document is loaded, power is supplied to the output lines.
Confirm that outputs are within the limits below.
Output voltage settings
TEL/LIU PWB
CNLIUA
CNLIUB
CNLIUA
CONTROL PWB
Output Voltage limits
4.75V ∼ 5.25V
+5V
23.3V ∼ 24.7V
+24V
2. IC protectors replacement
ICPs (IC Protectors) are installed to protect the motor driver circuit.
ICPs protect various ICs and electronic circuits from an overcurrent con-
dition.
The location of ICPs are shown below:
CNLIUA
CONTROL PWB
(TOP SIDE)
POWER SUPPLY PWB
CN2
CNPW
Connector
No. CNPW
Pin No.
1
2
3 VTH-ON
4
5
6
7 +24V
8 VTH
9 VTH
10 VTH
CNLIUB
CNPW
FU100
(1) FU100 (ICP-S07) is installed in order to protect IC's from an over-
current generated in the motor drive circuit. If FU100 is open, replace
it with a new one.
3. Settings
(1) Dial mode selector
DIAL mode (Soft Switch No. SWB4 DATA No. 3)
(step 1) Select "OPTION SETTING".
KEY :
DISPLAY:
(step 2) Select "DIAL MODE".
KEY:
DISPLAY:
(step 3) Select, using "1" or "2".
KEY:
DISPLAY:
KEY:
DISPLAY:
(step 4) End, using the "STOP" key.
KEY:
4. Method of release of starting lock up by Battery
Reset
(1) Summary
There is a possibility of release of the lock up by reset the signal BATRST
of CPU (XFC3, XFC5), if it lock up when you turn on the power of the set
DG in UX-108 series. We inform you of the method of release.
+5V
(2) Contents
When you turn on the power of the set without EPROM by your mistake,
MG
if you turn off the power after, turn on the power with EPROM again, the
MG
set don't start.
MG
In this case, before you judge the CPU (XFC3, XFC5) is wrong, you
need to confirm the release of the lock up by reset the signal BATRST.
and unknown origin in the same way.
Method of the reset of signal BATRST
Short the between leads of the capacitor C5 on the control PWB,
F2940FF-7X in the state of POWER OFF.
2 – 1
FUNCTION 4
OPTION SETTING PRESS
# # # # # # #
DIAL MODE 1=TONE, 2=PULSE
1
TONE SELECTED
2
PULSE SELECTED
STOP
OR #
Cursor
When initially registering,
the mode shows 1=TONE.
When registering again, the
mode which was registered
formerly is shown.