Chapter 4
4 - 16
(2) BACK LIGHT CONTROL section
The BACK LIGHT CONTROL section divides the 100 kHz signal
[ADC_CLK] with the BINARY COUNTER TC74VHC4040FT,
generating power for the back light of the LCD.
VFT1
NC
VFT2
2
1
+
C14
OPEN
+15V
R22
7.15KF
R23
7.15KF
1
3
2
Q5
2SC2873
1
3
2
Q6
2SC2873
4
3
2
5
1
8
6
L1
FT-34
C16
18P/4KV
DG
LCD CFL
NC
C13
1.0UF/50V(C)7
2
4
1
3
5
7
6
8
L2
CMD8R-471M
CP44
CP45
CP46
CP47
CP80
CP81
CP82
C32
0.1uFFZ
DG
VCC
16
Q12
1
Q6
2
Q5
3
Q7
4
Q4
5
Q3
6
Q2
7
GND
8
Q1
9
CK
10
CLR
11
Q9
12
Q8
13
Q10
14
Q11
15
IC11
TC74VHC4040FT
DG
1
3
2
Q7
UN5212
( 1 )
ADC_CLK
+5V
+5V
DG
CP89
CP90
CP91
CP92
CP93
CP94
CP95
CP96
DG
DG
R24
20KF
1
2
3
4
P5
S4B-XH-A
C15
0.033U/100V
3
2
1
Q8
2SJ179
1
2
4
5
3
IC12A
TC-74VHC00FT
9
10
8
IC12C
TC-74VHC00FT
4
5
6
IC12B
TC-74VHC00FT
12
13
11
IC12D
TC-74VHC00FT
Содержание FX-7302
Страница 10: ...viii ...
Страница 12: ......
Страница 60: ...Chapter 2 2 40 ...
Страница 62: ......
Страница 86: ...Chapter 4 4 18 ...
Страница 87: ...4 19 MAIN BOARD circuit diagram PCB 6956B Power connection table No 1 ...
Страница 111: ...4 43 MARK SENSOR BOARD PCB 6942 MARK SENSOR block Recoding paper 1 2 3 J1 DF4 3P 2C 5 3 4 2 1 PH1 ON2253R ...
Страница 112: ...4 44 MAGAZINE UP SENSOR BOARD PCB 6943A MAGAZINE UP SENSOR BOARD block 1 2 J1 DF4 2P 2C 1 2 3 S1 JPS1220 0401 ...
Страница 114: ...4 46 ...
Страница 116: ......
Страница 130: ......
Страница 131: ...6 1 MAIN BOARD PCB 6956B component side ...
Страница 132: ...6 2 MAIN BOARD PCB 6956B soldering side ...
Страница 133: ...6 3 OPERATION BOARD PCB 6957B component side ...
Страница 134: ...6 4 OPERATION BOARD PCB 6957B soldering side ...
Страница 135: ...6 5 ECG AMP BOARD PCB 6731D component side ...
Страница 136: ...6 6 ECG AMP BOARD PCB 6731D soldering side ...
Страница 137: ...6 7 MARK SENSER BOARD PCB 6942 component side ...
Страница 138: ...6 8 MAGAZIN UP BOARD PCB 6943A component side ...
Страница 139: ...6 9 CONNECTION BOARD PCB 7028 component side ...
Страница 140: ...6 10 ...
Страница 142: ......
Страница 151: ...7 9 Outline view 255 315 70 76 ...
Страница 152: ...7 10 ...
Страница 154: ......
Страница 160: ...Chapter 8 8 6 ...
Страница 161: ......
Страница 162: ...39 4 Hongo 3 chome Bunkyo ku Tokyo Japan Phone 81 3 3815 2121 Fax 81 3 3814 1222 4R2149A 200506 F ...