Sylvania 6632LCT, Руководство по обслуживанию

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7-5
L4400BLIV
Inverter Block Diagram
BA
CK
LIGHT
1 2
BA
CK
LIGHT
1 2
BA
CK
LIGHT
1 2
BA
CK
LIGHT
1 2
BA
CK
LIGHT
1 2
BA
CK
LIGHT
1 2
DRIVE
Q1102,Q1103
IC1001
(DRIVER)
IC1500
(COMPARATOR)
IC1550
(COMPARATOR)
Q1020
CN1000
CN253
DRIVE
DRIVE
Q1100,Q1101
DRIVE
Q1252,Q1253
LDR2 HDR2 LDR2
VS IS
HDR2
V-REF
LDR1 HDR1 LDR1 HDR1
DRIVE
Q1250,Q1251
INVER
TER CB
A
MAIN CB
A
LCD MODULE
T1050
CN1050 CN1100 CN1150 CN1200 CN1250 CN1300
2 5 1 6
10
9 8 7
3 4
T1100
2 5 1 6
10
9 8 7
3 4
T1150
2 5 1 6
10
9 8 7
3 4
T1200
2 5 1 6
10
9 8 7
3 4
T1250
2 5 1 6
10
9 8 7
3 4
T1300
2 5 1 6
10
9 8 7
3 4
INV+24V
1-8
13-20
BA
CKLIGHT
-ADJ
19
2
BA
CKLIGHT
-SW
20
1
PR
O
TECT1
INV+24V
BA
CKLIGHT
-SW
BA
CKLIGHT
-ADJ
T
O
SYSTEM
CONTR
OL
BLOCK DIA
GRAM
PR
O
TECT1
18
3
+5V REG.
Q1000
2
1
3
13 12
9
10
6 5
14
8 7
IC1000
(INVERTER CONTROL)
2
1
3
13 12
9
10
6 5
14
8 7
V-REF
Q1002
Q1003
Q1001
V-REF
VCC VCC
4 4
15 10
6 3
11 14
1 8
4
10
5
1
13 15
13 12
6
LOGIC
OUTPUT DRIVE CONTR
OL
LOGIC
IGNITION /PR
OTECTION
CONTR
OL
LOGIC
LOGIC
HF OSC
SW CTL
LF OSC
DRIVE DRIVE DRIVE
VDD VDD