Magnavox 40MF430B - Service Manual Page 41
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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9-6 FL10.5BLP1
Power Supply 1 Block Diagram
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F1601) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
For continued protection against risk of fire,
replace only with same type 8A, 250V fuse.
CAUTION ! :
ATTENTION : Utiliser un fusible de rechange de même type de 8A, 250V.
8A 250V
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
LCD MODULE
ASSEMBLY
HOT COLD
HOT CIRCUIT. BE CAREFUL.
CN1601
1
2
AC601
AC CORD
AC
INLET
LINE
FILTER
L1601
LINE
FILTER
L1602
T1201
BRIDGE
RECTIFIER
D1201-D1204
BRIDGE
RECTIFIER
D1607-D1610
L1604
DRAIN
VCC
VDD
FB
TO SYSTEM CONTROL
BLOCK DIAGRAM
POWER SUPPLY CBA
AL+4.3V
+345V
HOT+20V
F1601
8A/250V
5
7
9
10
1
2
4
6
3
2
5
11
8
T1701
8
7
5
3
4
2
1
10
9
11
12
13
14
15
16
IC1202
14
3 2
IC1201
(SWITCHING)
Q1602
SWITCHING
Q1601
VCC
SWITCHING
(FEED BACK)
RL1201
Q1202
Q1201
Q1701
SWITCHING
Q1702
SWITCHING
IC1705
(ISOLATOR)
IC1704
(FEED BACK)
IC1401
(SWITCHING CONTROL)
IC1702
HIGH-VOLTAGE
RESONANT CONTROL
SWITCHING
CONTROL
7
11
11612
14
L1603
2
5
11
8
HIGH-
VOLTAGE
RESONANT
CONTROL
8
8
12
13
2
14
9
5
4
14
3 2
14
3 2
IC1703
(ISOLATOR)
Q1705
Q1703
Q1704
Q1404
Q1403
Q1402
Q1401
Q1707
Q1708
14
3 2
CN1914
PANEL+24V
1-5
P-ON-H2
P-ON-H1
PROTECT3
BACKLIGHT-ADJ
BACKLIGHT-SW
Q1706
BACKLIGHT-ADJ
13
BACKLIGHT-ADJ
14
BACKLIGHT-SW
12
5
1
2
4
POWER-RESET
TO SYSTEM CONTROL
BLOCK DIAGRAM
*1
*2
*1 40MF430B/F7 (Serial No. : DS1A),
LC407SS1 (Serial No. : DS1A, DS2A)
LC407EM1
*2 40MF430B/F7 (Serial No. : DS2A),
LC407SS1 (Serial No. : DS3A)
- SERVICE MANUAL 1
- IMPORTANT SAFETY NOTICE 2
- TABLE OF CONTENTS 3
- SPECIFICATIONS 4
- IMPORTANT SAFETY PRECAUTIONS 5
- Precautions during Servicing 7
- Safety Check after Servicing 8
- STANDARD NOTES FOR SERVICING 9
- Example : 11
- <Incorrect> 12
- <Correct> 12
- 1. Disassembly Flowchart 13
- 2. Disassembly Method 13
- [2] Rear Cabinet 14
- [1] Stand Assembly 14
- 4-3 FL10.5DC 15
- 4-4 FL10.5DC 16
- 4-5 FL10.5DC 17
- TV Cable Wiring Diagram 18
- LC407SS1 (Serial No. : DS3A)] 19
- 4-9 FL10.5(A01PE_PFUH)DC 21
- 4-10 FL10.5(A01PE_PFUH)DC 22
- 4-11 FL10.5(A01PE_PFUH)DC 23
- Test Equipment Required 25
- 1. Purity Check Mode 25
- 2. White Balance Adjustment 26
- HOW TO INITIALIZE THE LCD TV 27
- FIRMWARE RENEWAL MODE 28
- TROUBLESHOOTING 29
- 8-2 FL10.5TR 30
- 8-3 FL10.5TR 31
- [ Video Signal Section ] 32
- Check P-ON+5V, P-ON+8V line 33
- 8-7 FL10.5TR 35
- BLOCK DIAGRAMS 36
- System Control Block Diagram 37
- 9-3 FL10.5BLV 38
- FL10.5BLA 39
- FL10.5BLD 40
- 9-6 FL10.5BLP1 41
- Power Supply 2 Block Diagram 42
- Standard Notes 44
- Indicates that the voltage 45
- FL10.5SCP1 46
- FL10.5SCP2 47
- FL10.5SCP3 48
- Jack 1 Schematic Diagram 49
- FL10.5SCJ2 50
- Function Schematic Diagram 51
- FL10.5SCIR 52
- FL10.5SCD1 53
- FL10.5SCD2 54
- FL10.5SCD3 55
- FL10.5SCD4 56
- FL10.5SCD5 57
- Power Supply CBA Top View 58
- Power Supply CBA Bottom View 59
- BA01P0F01023 60
- FL10.5WF11-1 64
- FL10.5WI12-1 65
- FL10.5WI_212-2 66
- EXPLODED VIEWS 67
- 13-2 FL10.5(A01PE/PFUH)CE X 68
- 13-2 FL10.5PEX 69
- PARTS LIST [40MF430B/F7] 70
- Electrical Parts 71
- 20100327 14-3 A01PBEL 72
- 20100327 14-4 A01PBEL 73
- JACK ASSEMBLY 74
- 20100327 14-6 A01PBEL 75
- JUNCTION-B CBA 76
- FUNCTION CBA 77
- IR SENSOR CBA 77
- JUNCTION-A CBA 77
- Mechanical Parts 78
- REVISION HISTORY 82
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