31
28JW-74H
1
PIN FUNCTIONS
Pin
Number
Name
Function
1
-V
CC
Negative supply
2
-V
CC
Negative supply
3
-V
CC
Negative supply
4
OUT
PWM Output
5
CFLY+
Flyback capacitor
6
CFLY-
Flyback capacitor
7
BOOT
Bootstrap capacitor
8
VREG
Internal voltage regulator
9
FEEDCAP
Feed-back integrating capacitor
10
FREQ
Frequency setting resistor
11
SGND
Signal Ground
12
IN-
Error amplifier inverting input
13
IN+
Error amplifier non-inverting input
14
EA out
Error amplifier output
15
+V
CC
Positive supply
16
+V
CC
POW
Positive Power supply
17
-VccPOW
Negative Power supply
18
-V
CC
Negative supply
19
-V
CC
Negative supply
20
-V
CC
Negative supply
STV9380 (IC502)
PIN CONNECTION
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
-V
CC
-V
CC
-V
CC
-V
CC
-V
CC
-V
CC
-V
CC
POW
+ V
CC
POW
+V
CC
EAout
IN+
IN-
SGND
OUT
CFLY +
CFLY -
BOOT
VREG
FEEDCAP
FREQ
Summary of Contents for 28JW-74H
Page 19: ...19 28JW 74H CHASSIS LAYOUT PWB A Mother Unit FB217N2 ...
Page 39: ...39 28JW 74H SCHEMATIC DIAGRAM OF CRT UNIT FB218N2 1 I H G F E D C B A 2 3 4 5 6 7 ...
Page 40: ...40 28JW 74H SCHEMATIC DIAGRAM OF MAIN 1 FB217N2 1 I H G F E D C B A 2 3 4 5 6 7 Page 41 ...
Page 41: ...41 28JW 74H 8 9 10 11 12 13 14 I H G F E D C B A Page 40 SCHEMATIC DIAGRAM OF MAIN 1 FB217N2 ...
Page 42: ...42 28JW 74H SCHEMATIC DIAGRAM OF MAIN 2 FB217N2 1 I H G F E D C B A 2 3 4 5 6 7 Page 43 ...
Page 43: ...43 28JW 74H 8 9 10 11 12 13 14 I H G F E D C B A Page 42 SCHEMATIC DIAGRAM OF MAIN 2 FB217N2 ...
Page 44: ...44 28JW 74H SCHEMATIC DIAGRAM OF MAIN 3 FB217N2 1 I H G F E D C B A 2 3 4 5 6 7 Page 45 ...
Page 45: ...45 28JW 74H 8 9 10 11 12 13 14 I H G F E D C B A Page 44 SCHEMATIC DIAGRAM OF MAIN 3 FB217N2 ...
Page 46: ...46 28JW 74H SCHEMATIC DIAGRAM OF MAIN 4 FB217N2 1 I H G F E D C B A 2 3 4 5 6 7 Page 47 ...
Page 47: ...47 28JW 74H 8 9 10 11 12 13 14 I H G F E D C B A Page 46 SCHEMATIC DIAGRAM OF MAIN 4 FB217N2 ...
Page 48: ...48 28JW 74H SCHEMATIC DIAGRAM OF CONTROL UNIT FB219N1 1 I H G F E D C B A 2 3 4 5 ...
Page 49: ...49 28JW 74H 01 2 01 01 2 2 3 4 3 3 5 3 67 3 2 01 3 4 8 98 3 4 2 01 6 7 TROUBLESHOOTING TABLES ...
Page 51: ...51 28JW 74H 4 4 4 4 3 3 C 4 3 4 D 4 3 4 3 3 4 ...
Page 62: ...62 28JW 74H Notes ...
Page 63: ...63 28JW 74H Notes ...
