Sharp FO-1660, Service Manual

Page: 16 / 116

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
Output Voltage limits
+5V 4.75V
∼
5.25V
V-REG 7.0V
∼
8.2V
+24V 23.3V
∼
24.7V
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
condition.
The location of ICPs are shown below:
(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)
TEL/LIU
PWB CONTROL
PWB
POWER
SUPPLY
PWB
CNPW
CNLIUA CNLIU
CNLED CNMT
CNTH CNCCD CNSP
CNCS
CNPN
(step 1) Select "OPTION SETTING".
DISPLAY:
DISPLAY:
DISPLAY: TONE SELECTED
KEY:
FUNCTION 4
KEY:
OPTION SETTING PRESS OR #
KEY:
DIAL MODE 1=TONE, 2=PULSE
KEY:
KEY:
DISPLAY:
(step 4) End, using the "STOP" key.
(step 3) Select, using "1" or "2".
(step 2) Select "DIAL MODE".
1
2
PULSE SELECTED
STOP
# # # # # # #
Cursor
When initially registering,
the mode shows 1=TONE.
When registering again, the
mode which was registered
formerly is shown.
#
Connector
No.
CNPW
Pin No.
1 MG
2 MG
3 MG
4 +24V
5 +24V
6 DG
7 +5V
8 DG
9 V-REG
CONTROL
PWB (TOP SIDE)
CNLIUA
FU100
UX-600MU/MC
FO-1660U/C
2 – 1