Sharp UX-4000M Service Manual - Page 124
Printer Pwb Unit, Ic2: Vhia2918swh//a2918swh
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UX-4000MU FO-2950MU/C PRINTER PWB UNIT IC2: VHIA2918SWH//(A2918SWH) 13 PHASE1 14 ENABLE1 1 OUT1A 17 OUT1B 5 VBB 2 OUT2A 4 OUT2B PHASE2 8 ENABLE2 7 SOURCE DISABLE ONE SHOT RC1 12 - + SENSE1 16 E1 18 ÷10 GND 10 ÷10 VREF 15 - + E2 3 SENSE2 6 VCC 11 SOURCE DISABLE ONE SHOT RC2 9 Fig. 7 8 - 7 manuals4you.com ENABLE PHASE L H L L H X OUTA H L Z OUTB L H Z X = DON'T CARE Z = HIGH IMPEDANCE
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UX-4000MU
FO-2950MU/C
8 – 7
PRINTER PWB UNIT
IC2: VHIA2918SWH//(A2918SWH)
–
+
–
+
PHASE2
ENABLE2
PHASE1
ENABLE1
ONE
SHOT
ONE
SHOT
ENABLE
PHASE
OUTA
OUTB
L
H
H
L
L
L
L
H
H
X
Z
Z
X = DON'T CARE
Z = HIGH IMPEDANCE
1
17
OUT1A
OUT1B
5
VBB
OUT2A
OUT2B
2
4
SOURCE
DISABLE
VCC
RC2
9
SENSE2
6
E2
3
÷10
15
GND
10
18
16
E1
SENSE1
RC1
12
11
7
8
SOURCE
DISABLE
14
13
÷10
VREF
Fig. 7
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