Electric Circuit Diagrams
4 - 9
Reset circuit section
MAX6365LKA29-T is used as a reset IC for the reset circuit section. The
reset IC mo3.3 V, and if it b1.2 V or lower, resets the
entire system.
DG
DG
DG
DG
DG
+3.3V
DG
VBAT
( 11 )
( 7,8,9,11,12,18,20 )
RESET_L
RESET SW
LITIUM_V
( 7 )
3
2
1
D10
1SS302
DG
+3.3VA
+5V
DG
R287
100F
C62
0.1uFFZ
C63
0.1uFFZ
C64
0.1uFFZ
R295
1.0MF
RESETSW_L
( 17 )
2
1
+
C247
10UF/6.3V(T)3
1
2
3
4
SW1
B3FS-1000
VCC
5
CE IN
2
OUT
6
RESET
1
MR
4
CE OUT
8
BATT
7
GND
3
IC16
MAX6365LKA29-T
R95
1.2KF
ON MAIN BOARD
1
2
14
7
IC10A
HD74LVC04
RESET
( 13,19 )
DG
+3.3V
1
2
3
BT1
BH-32
R24
10KF
3
2
1
8
4
IC17A
OPA2350UA
Sensor control section
Magazine up sensor and mark sensor are provided. Signals are output from
No.1 pin of connector P6 for the magazine up sensor. If the magazine is
opened, the switch is turned off, and “L” level signal is transmitted to the
MAIN CPU. When the magazine is closed, “H” level signal is output.
The mark sensor output signals from No.4 pin of connector P7. If the mark
of the recording paper is aligned with the sensor or the recording paper has
run out, “L” level signal is output. The signal is then amplified with
MAX4163EUA (IC41) and transmitted to the MAIN CPU.
SENSE CN
SW-ON
SW-COM
MARK-COM
MARK-E
MARK-A
( 8 )
( 7 )
D20
1SS302
R330
510F
R331
510F
R289
100F
R358
100KF
R359
100KF
R91
24KF
R290
100F
C86
0.1uFFZ
R48
10KF
C213
470pFCHJ
IC41A
MAX4163EUA
IC41B
MAX4163EUA
D21
1SS302
C92
0.1uFFZ
(19A)
(19B)
( 8 )
UNMOUNT
C197
0.1uFFZ
P6
DF13-5P-1.25H(21)
IC38A
TC7W14FU
IC38B
TC7W14FU
Summary of Contents for FX-7302
Page 10: ...viii ...
Page 12: ......
Page 60: ...Chapter 2 2 40 ...
Page 62: ......
Page 86: ...Chapter 4 4 18 ...
Page 87: ...4 19 MAIN BOARD circuit diagram PCB 6956B Power connection table No 1 ...
Page 114: ...4 46 ...
Page 116: ......
Page 130: ......
Page 131: ...6 1 MAIN BOARD PCB 6956B component side ...
Page 132: ...6 2 MAIN BOARD PCB 6956B soldering side ...
Page 133: ...6 3 OPERATION BOARD PCB 6957B component side ...
Page 134: ...6 4 OPERATION BOARD PCB 6957B soldering side ...
Page 135: ...6 5 ECG AMP BOARD PCB 6731D component side ...
Page 136: ...6 6 ECG AMP BOARD PCB 6731D soldering side ...
Page 137: ...6 7 MARK SENSER BOARD PCB 6942 component side ...
Page 138: ...6 8 MAGAZIN UP BOARD PCB 6943A component side ...
Page 139: ...6 9 CONNECTION BOARD PCB 7028 component side ...
Page 140: ...6 10 ...
Page 142: ......
Page 151: ...7 9 Outline view 255 315 70 76 ...
Page 152: ...7 10 ...
Page 154: ......
Page 160: ...Chapter 8 8 6 ...
Page 161: ......