Emerson EWL20S5- Manuals

Emerson EWL20S5– User Manual, Manual in PDF format online.

Manuals:

User Manual
Manual

User Manual Emerson EWL20S5

Summary

Page 2 - IMPORTANT SAFETY NOTICE; TABLE OF CONTENTS

IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all Funai Equipment. The service procedures recommended by Funai and described in this service manual are effective methods of performing service operations. Some of these service special tools should b...

Page 3 - SPECIFICATIONS

1-1 L2500SP SPECIFICATIONS < TUNER > ANT. Input ---------------------- 75 ohm Unbal., F typeReference Level --------------- 20 Vp-p (LCD Green Cathode)Test Input Signal -------------- 400 Hz 30% modulation < LCD PANEL > < VIDEO > < AUDIO > All items are measured across 8 Ω lo...

Page 4 - IMPORTANT SAFETY PRECAUTIONS

2-1 LTVN_ISP IMPORTANT SAFETY PRECAUTIONS Prior to shipment from the factory, our products are strictly inspected for recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the ...

Page 6 - Precautions during Servicing

2-3 LTVN_ISP Precautions during Servicing A. Par ts identified by the # symbol are critical for safety.Replace only with part number specified. B. In addition to safety, other parts and assemblies are specified for conformance with regulations applying to spurious radiation. These must also be repla...

Page 7 - Safety Check after Servicing; Clearance Distance

2-4 LTVN_ISP Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the specified values in order to verify complia...

Page 8 - STANDARD NOTES FOR SERVICING; Circuit Board Indications

3-1 TVN_SN STANDARD NOTES FOR SERVICING Circuit Board Indications 1. The output pin of the 3 pin Regulator ICs is indicated as shown. 2. For other ICs, pin 1 and every fifth pin are indicated as shown. 3. The 1st pin of every male connector is indicated as shown. Pb (Lead) Free Solder Pb free mark w...

Page 11 - Ground for Human Body; Ground for Workbench

3-4 TVN_SN Instructions for Handling Semi-conductors Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1 M Ω ) that is properly grounded to ...

Page 12 - CABINET DISASSEMBLY INSTRUCTIONS; Disassembly Flowchart

4-1 L2601DC CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart This flowchart indicates the disassembly steps for the cabinet parts, and the CBA in order to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route and dress the cables as they we...

Page 14 - TV Cable Wiring Diagram; IR Sensor CBA; Function CBA; To LCD Module

4-3 L2601DC TV Cable Wiring Diagram Fig. D3 IR Sensor CBA To LCD Module CN310 To Speaker Function CBA CLN104 CN801 To Speaker CN1202 CLN105 CN1207 CN1206 CN1205 To LCD Module Main CBA CN404 CN304 Inverter CBA CN301 CN302 CN303 CN1201

Page 15 - ELECTRICAL ADJUSTMENT INSTRUCTIONS; Test Equipment Required; Table 1: Initial Data

5-1 L2601EA ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: “CBA” is abbreviation for “Circuit Board Assembly.” Note: Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to perform these adjustments only after all repairs and replacem...

Page 16 - Flicker Adjustment; VCOM

5-2 L2601EA 2. Flicker Adjustment 1. Enter the Service mode. (See page 5-1.) 2. Press [2] button on the remote control unit. The following screen appears. 3. If Flicker Adjustment is not fit, the screen become the following. 4. Press [CH o / p ] buttons on the remote control unit so that flash stops...

Page 17 - White Balance Adjustment

5-3 L2601EA The following adjustment normally are not attempted in the field. Only when replacing the LCD Panel then adjust as a preparation. 3. White Balance Adjustment Purpose: To mix red, green and blue beams correctly for pure white. Symptom of Misadjustment: White becomes bluish or reddish. Not...

Page 18 - HOW TO INITIALIZE THE LCD TELEVISION; How to initialize the LCD television:

6-1 L3103INT HOW TO INITIALIZE THE LCD TELEVISION How to initialize the LCD television: 1. Turn the power on. (Use main power on the TV unit.) 2. To enter the service mode, press [SLEEP] button on the service remote control unit. - To cancel the service mode, press [POWER] button on the remote contr...

Page 19 - BLOCK DIAGRAMS; System Control Block Diagram

7-1 BLOCK DIAGRAMS System Control Block Diagram L2601BLS FUNCTION CB A KEY -IN-1 22 CLN104 KEY SWITCH KEY -IN-2 11 BA CKLIGHT -ADJ KEY SWITCH IC1202 (TV MICR O CONTR O LLER) 4 21 CN1201 34 KEY -IN-1 REMO TE RESET RESET AL+3.3V(D) 37 38 X1201 27MHz XIN XOUT MAIN CB A 5 KEY -IN-2 29 30 P-ON-H V OLUME ...

Page 20 - IF/Video Block Diagram

7-2 L2601BLIF IF/Video Block Diagram T O A UDIO BLOCK DIA G RAM TO LCD BLOCK DIA GRAM TO LCD BLOCK DIA GRAM INPUT -0(INV) INPUT -1(INV) SA W FIL TER TU1 SF11 IF AG C SD A SCL 1 7 3 2 SIF MAIN CB A VIDEO SIGNAL A U DIO SIGNAL T O A UDIO BLOCK DIA GRAM JK706 VIDEO-Y IN JK707 VIDEO-Pb/Cb IN JK708 VIDEO...

Page 21 - Audio Block Diagram

7-3 Audio Block Diagram L2601BLA MAIN CB A A U DIO SIGNAL A UDIO-MUTE V O LUME T O SYSTEM CONTR OL BLOCK DIA GRAM INPUT -0(INV) INPUT -1(INV) SCL SD A IC852 (INPUT SELECT) SW CTL 3 11 15 12 4 1 9 10 STEREO FIL TER 75uS DE-EMPH dBX DE-EMPH L+R FIL TER WIDE BAND FIL TER WIDE BAND RMS DET WIDE BAND EXP...

Page 22 - LCD Block Diagram

7-4 LCD Block Diagram L2601BLLCD CN1206 TO IF/VIDEO BLOCK DIA GRAM OR(0) 24 OR(1) 23 MAIN CB A VIDEO SIGNAL CVBS S-VIDEO-C IC1202 (LCD DRIVE / SIGNAL PR OCESS) 70 52 75 S-VIDEO-Y TO IF/VIDEO BLOCK DIA GRAM TO SYSTEM CONTR O L BLOCK DIA G RAM VIDEO-Y VIDEO-Pb/Cb LCD MODULE OR(2) 22 OR(3) 21 OR(4) 20 ...

Page 24 - LCD Backlight Block Diagram

7-6 LCD Backlight Block Diagram L2601BLLB CURRENT CONTR OL SWITCH Q321 Q324 T301 CN301 LCD MODULE INVER TER CB A BA CK LIGHT BA CK LIGHT BA CK LIGHT O VER V O LT A G E PR O TECT OR Q322,323 1 2 1 2 CN302 CN303 1 2 INV+22V 9 7 3 5 2 6 1 4 10 8 TO PO WER SUPPL Y BLOCK DIA GRAM MAIN CB A AL+21V77 CN404...

Page 25 - SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS; Standard Notes; Tolerance of Capacitors are noted with the following:; CBA Symbols

8-1 LC4N_SC SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS Standard Notes Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated...

Page 26 - Voltage indications on the schematics are as shown below:; How to read converged lines

8-2 LC4N_SC LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE_A,_V FUSE. ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE_A,_V. 2. CAUTION: Fixed Voltage...

Page 27 - Main 1/5 Schematic Diagram

Page 28 - Main 2/5 Schematic Diagram

Page 29 - Main 3/5 Schematic Diagram

Page 30 - Main 4/5 Schematic Diagram

Page 31 - Main 5/5 Schematic Diagram

8-7 L2601SCM5 Main 5/5 Schematic Diagram 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 supplycircuit are not defective before you connect the AC plug to the AC power supply.O...

Page 32 - Function Schematic Diagram

Page 33 - IR Sensor Schematic Diagram

Page 34 - Inverter Schematic Diagram

Page 35 - Main CBA Top View

8-11 PIN 75 OFIC1202 WF8 PIN 77 OFIC1202 WF10 PIN 70 OFIC1202 WF7 PIN 62 OFIC1202 WF12 PIN 57 OFIC1202 WF11 PIN52 OFIC1202 WF9 BL2500F01011-1 Main CBA Top View CAUTION ! Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.If Main Fuse (F601) is blown , check to see t...

Page 36 - Main CBA Bottom View

8-12 PIN 27 OFCN1206 WF3 PIN 28 OFCN1206 WF4 PIN 26 OFCN1206 WF5 P I N 2 O FCN1206 WF1 PIN 14 OFIC801 WF6 P I N 7 O FCN1205 WF2 Main CBA Bottom View BL2500F01011-1 For continued protection against risk of fire, replace only with same type 4 A, 125V fuse. CAUTION ! : ATTENTION : Utiliser un fusible d...

Page 39 - WAVEFORMS

WAVEFORMS L2500WF 9-1 1DIV: 1.0V 10 s 1DIV: 1.0V 20 s Pin 2 of CN1206 WF1 1DIV: 1.0V 10 sPin 26 of CN1206 WF5 Input: NTSC Color Bar Signal (with 1kHz Audio Signal) WF1 ~ WF12 = Waveforms to be observed at Waveform check points.(Shown in Schematic Diagram.) 1DIV: 1.0V 20nsPin 7 of CN1205 WF2 Pin 27 o...

Page 40 - WIRING DIAGRAM

WIRING DIAGRAM L2601WI 10-1 LCD MODULE TU1 TUNER UNIT VIDEO -Y IN AUDIO1(R) -IN AUDIO2(L) -IN S-VIDEO IN VIDEO -Pb/Cb IN VIDEO -Pr/Cr IN VIDEO1 -IN AUDIO1(L) -IN AUDIO2(R) -IN IR SENSOR CB A MAIN CB A CLN104 FUNCTION CB A CLN105 5 NU 1 3 4 2 5 1 3 4 2 CN1202 REMO TE AL+3.3V(D) GND P-ON-H INVER TER C...

Page 41 - EXPLODED VIEWS; Cabinet

11-1 L2601CEX EXPLODED VIEWS Cabinet CL1207 CL1206 CL1205 B22 B7 A6 A1 B6 B6 B6 B6 A2 A3 L22 L22 B4 LCD1 L9 L14 L14 L14 L14 L16 L16 L14 L14 A9 L9 L23 L9 L9 L9 L9 L9 L9 A4 B3 B12 B21 B21 B21 L14 L22 S5 A8 L19 A10 L30 L9 L9 L22 L22 L22 A11 B14 L22 A7 L22 L22 B14 CLN801 SP801 CLN802 SP802 CLN320 See El...

Page 42 - Packing

11-2 L2601PEX Packing S1 FR ONT S2 S5 S4 Tape Packing Tape Packing Tape Packing Tape S3 S3 S6 X1 X5 X3 Some Ref. Numbers are not in sequence. X2 Packing Tape

Page 43 - MECHANICAL PARTS LIST

20060428 12-1 L2601CA MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through impro...

Page 44 - ELECTRICAL PARTS LIST; MAIN CBA

20060428 13-1 L2601EL ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through impro...

Page 49 - INVERTER CBA

20060428 13-6 L2601EL INVERTER CBA R1363 CHIP RES. 1/10W J 10k Ω RRXAJR5Z0103 R1364 CHIP RES. 1/10W J 10k Ω RRXAJR5Z0103 R1365 CHIP RES.(1608) 1/10W 0 Ω RRXAZR5Z0000 R1366 CHIP RES.(1608) 1/10W 0 Ω RRXAZR5Z0000 R1367 CHIP RES.(1608) 1/10W 0 Ω RRXAZR5Z0000 R1368 CHIP RES.(1608) 1/10W 0 Ω RRXAZR5Z0000...

Page 50 - ANALOG KEY CBA; FUNCTION CBA

20060428 13-7 L2601EL ANALOG KEY CBA FUNCTION CBA D361 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D362 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D363 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D364 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D365 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D366 SWITCHING ...

Page 51 - IR SENSOR CBA

20060428 13-8 L2601EL IR SENSOR CBA SW62 TACT SWITCH SKQSAB SST0101AL038 SW63 TACT SWITCH SKQSAB SST0101AL038 SW64 TACT SWITCH SKQSAB SST0101AL038 SW65 TACT SWITCH SKQSAB SST0101AL038 SW67 TACT SWITCH SKQSAB SST0101AL038 SW71 TACT SWITCH SKQSAB SST0101AL038 MISCELLANEOUS CLN104 WIRE ASSEMBLY SW 4PIN...

Page 53 - SERVICE MANUAL; COLOR LCD TELEVISION; SUPPLEMENT

SERVICE MANUAL Model EWL20S5 has non-A, A, B and C version types. For the C version model, suffix C is printed to the model number as EWL20S5 C on the Rating Label, and for the non-A, A and B version models, suffix C is not printed to the model number.Refer to the Rating Label on the back of the uni...

Page 54 - Different parts from the B version model (EWL20S5)

Different parts from the B version model (EWL20S5) Ref. No. Description Part No. MECHANICAL PARTS A6 # RATING LABEL L2621UB ---------- LCD1 LCD MODULE ASSEMBLY UE200XB 1FSA10155 S1 CARTON L2601UB 1EM423468A X2 # OWNER S MANUAL L2601UB 1EMN21873A ELECTRICAL PARTS MMA CBA 1ESA13457 MAIN CBA ----------...