Ac Adaptor - Sharp PC-1600 Service Manual

5-2. AC adaptor (EA-160)
The following is abrief specification.
• Primary side input rating
l00VAC, 50/60Hz, 20VA (Japan use)
• Secondary side outpur
Rated voltage: 8.4VDC
Rated current: lA
Peak current: 2A
Overcurrent protection: About 2.5A
(Output short protection)
v
1---------...
8.4V
Abt.500mA
Regulator type: Chopper
• Size of case and weight
67.2 mm (W) x 115.2 mm
the stand of 1 mm high.
695
9
6. Service precautions
• All cornponents must be closely installed on the board.
• Observe the following torque in tightening the tapping
screw. Too much force may damage such as cabinet. For
the type of the screw to be used, refer to Parts Guide.
Screw location number
(See Parts Guide).
A
B
C
Marking in Parts Guide
The svrnbol (A to C) is attached to the lower right side
of the parts number.
Ex: 4A
Abt.2.5A
x 53.5 mm (H) excluding
(0)
Tightening torque (kg-cm)
2.0 kg • cm
2.5 kg· cm
3.0 kg • cm
• Consumption current
PC-1600
Printer Gate array (LR38045)
ROM (SC27C256)
Driver (LB1247)
When 45° dotted line
is printed
When print ASCII
character
When "555 .... "
printed
When the carriage is
is returning
45° dotted line
( ASC II character
"555 ...... "
NOTE: Printing character standard "2"
• Maximum printing time
(i) When printing 45° dotted line: 28 minutes
(ii) When printing ASCII character: 34 minutes
(iii) When printing "555 .... ": 35 minutes
* Rechargeable
charge)
** Maximum
characters (at print speed of 5 CPS)
*** Maximum printable lines: About 240 lines (at the
print speed of 5 CPS, with one second considered
for a carriage return
positions on a line)
6-1. Removal of the FPC PWB
To remove the FPC PWB from the main PWB, heat the
surface of the FPC PWB from above using the soldering
pencil, then lift up the FPC PWB from the main PWB. The
job may be slightly difficult as both sides of solder are
secured with the double tack tape.
-I':A-
-
P C-1600
Consumption
current
Max.5OmA
in operation
Max.3.25mA
Max.3.20mA
Max.l00mA
Max. S03mA
Max.638mA
Max.605mA
Max.242mA
Max. 959.45mA
Max.794.45mA'I
Max.761.45mAI
battery capacity : 500mAH
printable characters: About
after printing 40 character
FPC. PWB
VP =6V
Note
RS· 2 32C not
at 1.3MHz
At 400KHz
(at full
10,000