SERVICE MANUAL - Encompass Imaging
SERVICE MANUAL - Encompass Imaging SERVICE MANUAL - Encompass Imaging
Inverter Block Diagram [22MF339B/F7, LC225SSX] T1500 CN1550 2 8 1 BACK 3 7 2 LIGHT INV+31V 6 5 1 4 Q1004,Q1011, Q1013,Q1014 SW+12.5V Q1001,Q1002 SW+12.5V PANEL+15V IC1001 (PWM CONTROL) T1600 CN1650 VCC VREF 12 14 BACK LIGHT 1 2 8 7 2 3 Q1023, Q1024 SW Q1500 Q1005, Q1007, Q1008 DRIVE DTC 4 3 6 5 1 4 CURRENT CONTROL SWITCH 11 15 16 Q1600 Q1006, Q1009, PWM CONTROL LOGIC T1700 CN1750 CURRENT CONTROL SWITCH Q1010 DRIVE 8 BACK LIGHT 1 2 8 7 2 3 2 1 Q1700 CURRENT CONTROL SWITCH OSC 6 5 1 4 5 6 9-6 Q1003 Q1750 OVER VOLTAGE PROTECTOR Q1751 OVER VOLTAGE PROTECTOR Q1401 IC1002 (COMPARATOR) Q1650 OVER VOLTAGE PROTECTOR Q1651 OVER VOLTAGE PROTECTOR Q1402 Q1550 OVER VOLTAGE PROTECTOR Q1551 13 12 6 5 2 3 14 PROTECT3 BACKLIGHT-SW BACKLIGHT-ADJ TO SYSTEM CONTROL BLOCK DIAGRAM 7 1 OVER VOLTAGE PROTECTOR LCD MODULE ASSEMBLY MAIN CBA A9170BLINV
Power Supply Block Diagram [LC195SLX, LC195EMX, LC195SSX, 19MF339B/F7] NOTE: The voltage for parts in hot circuit is measured using hot GND as a common terminal. CAUTION ! : For continued protection against risk of fire, replace only with same type 4 A, 125V fuse. ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V. 4A/125V CAUTION ! Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F601) 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. HOT CIRCUIT. BE CAREFUL. LCD MODULE ASSEMBLY CN201 8 2,3 4 6,7 10 Q206 SW-7.1V PANEL-7.1V PANEL+13V PANEL+24.5V P-ON+3.3V VCOM T601 D601- D604 L601 AC601 AC CORD Q205 SW+24.5V F601 4A/125V 11 2 BRIDGE RECTIFIER LINE FILTER 15 CN301 CN3701 10 P-ON+3V 10 16 P-ON+7V 16 21,22 AL+3.3V 21,22 19,20 P-ON+3.3V 19,20 13,14 P-ON+5V 13,14 4A/125V P-ON+3V P-ON+7V AL+3.3V P-ON+3.3V P-ON+5V Q202,Q203 SWITCHING 10 3 9 DIGITAL MAIN CBA UNIT Q402 Q201,D202 SW+13V 16 4 14 7 13 9-7 PANEL+15V PANEL+13V P-ON+3.3V P-ON+9V INV+33V P-ON+5V SP+14V TUNER+5V AL+3.3V Q641 SW+9V 6 12 Q601 SWITCHING TO SYSTEM CONTROL BLOCK DIAGRAM P-ON-H1 P-ON-H2 PROTECT1 PROTECT2 VCOM Q640,D662 SW+3.3V IC601 1 4 Q638,Q639 SWITCHING 3 2 Q602 SWITCHING CONTROL Q631 FEED BACK Q637 SW+5V Q633 Q635,Q636 SW+5V 2 IC631 +3.3V REG. 3 Q634 +5V REG. HOT COLD MAIN CBA A91N3BLP
- Page 1 and 2: LCD TV chassis FL9.0 SERVICE MANUAL
- Page 3 and 4: TABLE OF CONTENTS Specifications .
- Page 5 and 6: IMPORTANT SAFETY PRECAUTIONS Prior
- Page 7 and 8: Precautions during Servicing A. Par
- Page 9 and 10: Circuit Board Indications STANDARD
- Page 11 and 12: With Iron Wire: 1. Using desolderin
- Page 13 and 14: CABINET DISASSEMBLY INSTRUCTIONS [L
- Page 15 and 16: [16] Front Cabinet [13] Junction-B
- Page 17 and 18: CABINET DISASSEMBLY INSTRUCTIONS [2
- Page 19 and 20: [16] Front Cabinet (S-14) [13] Junc
- Page 21 and 22: ELECTRICAL ADJUSTMENT INSTRUCTIONS
- Page 23 and 24: The white balance adjustment should
- Page 25 and 26: Equipment Required a. USB memory b.
- Page 27 and 28: FLOW CHART NO.6 PANEL+24.5V is not
- Page 29 and 30: FLOW CHART NO.14 AL+3.3V is not out
- Page 31 and 32: FLOW CHART NO.4 Picture does not ap
- Page 33 and 34: FLOW CHART NO.3 Audio is not output
- Page 35 and 36: BLOCK DIAGRAMS System Control Block
- Page 37 and 38: Audio Block Diagram AUDIO SIGNAL JA
- Page 39: Inverter Block Diagram [LC195SLX, L
- Page 43 and 44: SCHEMATIC DIAGRAMS / CBA AND TEST P
- Page 45 and 46: Main 1/4 Schematic Diagram [LC195SL
- Page 47 and 48: Main 3/4 & Junction-B Schematic Dia
- Page 49 and 50: Main 1/4 Schematic Diagram [22MF339
- Page 51 and 52: Main 3/4 & Junction-B Schematic Dia
- Page 53 and 54: Jack & Junction-C Schematic Diagram
- Page 55 and 56: Digital Main 1/5 Schematic Diagram
- Page 57 and 58: Digital Main 3/5 Schematic Diagram
- Page 59 and 60: Digital Main 5/5 Schematic Diagram
- Page 61 and 62: Main CBA Bottom View [LC195SLX, LC1
- Page 63 and 64: Main CBA Bottom View [22MF339B/F7,
- Page 65 and 66: Jack CBA Bottom View 10-23 BA94N0F0
- Page 67 and 68: WF1 ~ WF7 = Waveforms to be observe
- Page 69 and 70: DIGITAL MAIN CBA UNIT CN3902 TUNER
- Page 71 and 72: Cabinet [22MF339B/F7, LC225SSX] Fun
- Page 73 and 74: Packing [22MF339B/F7, LC225SSX] Tap
- Page 75 and 76: MECHANICAL PARTS LIST [LC195SLX (Se
- Page 77 and 78: MECHANICAL PARTS LIST [LC195EMX (Se
- Page 79 and 80: MECHANICAL PARTS LIST [22MF339B/F7]
- Page 81 and 82: MECHANICAL PARTS LIST [LC195SSX] PR
- Page 83 and 84: ELECTRICAL PARTS LIST [LC195SLX (Se
- Page 85 and 86: Ref. No. Description Part No. D1010
- Page 87 and 88: Ref. No. Description Part No. R1015
- Page 89 and 90: Ref. No. Description Part No. C103
Inverter Block Diagram [22MF339B/F7, LC225SSX]<br />
T1500<br />
CN1550<br />
2 8<br />
1<br />
BACK<br />
3 7<br />
2<br />
LIGHT<br />
INV+31V<br />
6<br />
5<br />
1<br />
4<br />
Q1004,Q1011,<br />
Q1013,Q1014<br />
SW+12.5V<br />
Q1001,Q1002<br />
SW+12.5V<br />
PANEL+15V<br />
IC1001<br />
(PWM CONTROL)<br />
T1600<br />
CN1650<br />
VCC<br />
VREF<br />
12<br />
14<br />
BACK<br />
LIGHT<br />
1<br />
2<br />
8<br />
7<br />
2<br />
3<br />
Q1023,<br />
Q1024<br />
SW<br />
Q1500<br />
Q1005,<br />
Q1007,<br />
Q1008<br />
DRIVE<br />
DTC<br />
4<br />
3<br />
6<br />
5<br />
1<br />
4<br />
CURRENT<br />
CONTROL<br />
SWITCH<br />
11<br />
15<br />
16<br />
Q1600<br />
Q1006,<br />
Q1009,<br />
PWM<br />
CONTROL<br />
LOGIC<br />
T1700<br />
CN1750<br />
CURRENT<br />
CONTROL<br />
SWITCH<br />
Q1010<br />
DRIVE<br />
8<br />
BACK<br />
LIGHT<br />
1<br />
2<br />
8<br />
7<br />
2<br />
3<br />
2<br />
1<br />
Q1700<br />
CURRENT<br />
CONTROL<br />
SWITCH<br />
OSC<br />
6<br />
5<br />
1<br />
4<br />
5 6<br />
9-6<br />
Q1003<br />
Q1750<br />
OVER VOLTAGE<br />
PROTECTOR<br />
Q1751<br />
OVER VOLTAGE<br />
PROTECTOR<br />
Q1401<br />
IC1002<br />
(COMPARATOR)<br />
Q1650<br />
OVER VOLTAGE<br />
PROTECTOR<br />
Q1651<br />
OVER VOLTAGE<br />
PROTECTOR<br />
Q1402<br />
Q1550<br />
OVER VOLTAGE<br />
PROTECTOR Q1551<br />
13<br />
12<br />
6<br />
5<br />
2<br />
3<br />
14<br />
PROTECT3<br />
BACKLIGHT-SW<br />
BACKLIGHT-ADJ<br />
TO<br />
SYSTEM<br />
CONTROL<br />
BLOCK<br />
DIAGRAM<br />
7<br />
1<br />
OVER VOLTAGE<br />
PROTECTOR<br />
LCD MODULE<br />
ASSEMBLY<br />
MAIN CBA<br />
A9170BLINV
Change language