Emerson SLC195EM8 2 Service Manual

Emerson SLC195EM8 2 Service Manual

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EMERSON AND THE G-CLEF LOGO ARE REGISTERED TRADEMARKS
OF EMERSON RADIO CORP., PARSIPPANY, NEW JERSEY, U.S.A.
SERVICE MANUAL
This service manual shows only the differences between
the SLC195EM8 2 and the original model SLC195EM8.
All other information is described in the service manual
of the model SLC195EM8.
19" COLOR LCD TELEVISION
SLC195EM8 2
SUPPLEMENT
TM

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Summary of Contents for Emerson SLC195EM8 2

  • Page 1 OF EMERSON RADIO CORP., PARSIPPANY, NEW JERSEY, U.S.A. SERVICE MANUAL This service manual shows only the differences between the SLC195EM8 2 and the original model SLC195EM8. All other information is described in the service manual of the model SLC195EM8. 19″ COLOR LCD TELEVISION...
  • Page 2 Misuse of any trademarks or any other content in this manual is strictly prohibited. Funai shall aggressively enforce its intellectual property rights to the fullest extent of the law. SLC195EM8 2 A81N8UH 2007-12-12...
  • Page 3 EMERSON AND THE G-CLEF LOGO ARE REGISTERED TRADEMARKS OF EMERSON RADIO CORP., PARSIPPANY, NEW JERSEY, U.S.A. SERVICE MANUAL 19″ COLOR LCD TELEVISION SLC195EM8...
  • Page 4: 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 be used when and as recommended.
  • Page 5: Specifications

    SPECIFICATIONS < TUNER / NTSC > ANT. Input ---------------------- 75 ohm Unbal., F type Description Condition Unit Nominal Limit 1. AFT Pull-In Range ±2.3 ±2.1 TV.ch.4 dBµ 2. Syncronizing Sens. CA.ch.31 dBµ CA.ch.87 dBµ < TUNER / ATSC > Description Condition Unit Nominal...
  • Page 6 < AUDIO > All items are measured across 8 Ω load at speaker output terminal with L.P.F. / Video1 Input. Description Condition Unit Nominal Limit 1. Audio Output Power 10% THD: Lch/Rch 1.0/1.0 0.9/0.9 2. Audio Distortion 500mW: Lch/Rch 0.5/0.5 2.0/2.0 -6dB: Lch 100 to 11 k...
  • Page 7: Important Safety Precautions

    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 following precautions when a set is being serviced.
  • Page 8 3. Design Alteration Warning - Do not alter or add 7. Product Safety Notice - Some electrical and to the mechanical or electrical design of this TV mechanical parts have special safety-related receiver. Design alterations and additions, characteristics which are often not evident from including, but not limited to circuit modifications visual inspection, nor can the protection they give and the addition of items such as auxiliary audio...
  • Page 9 Precautions during Servicing A. Parts 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 replaced only with specified replacements.
  • Page 10 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 compliance with safety standards. 1.
  • Page 11: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications How to Remove / Install Flat Pack-IC 1. The output pin of the 3 pin Regulator ICs is 1. Removal indicated as shown. With Hot-Air Flat Pack-IC Desoldering Machine: Top View Bottom View 1.
  • Page 12 3. The flat pack-IC on the CBA is affixed with glue, so With Soldering Iron: be careful not to break or damage the foil of each 1. Using desoldering braid, remove the solder from pin or the solder lands under the IC when all pins of the flat pack-IC.
  • Page 13 2. Installation With Iron Wire: 1. Using desoldering braid, remove the solder from 1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder the foil of each pin of the flat pack-IC on the CBA flux which is applied to all pins of the flat pack-IC, so you can install a replacement flat pack-IC more you can remove it easily.
  • Page 14 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 MΩ) that is properly grounded to remove any static electricity that may be charged on the body.
  • Page 15: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart Removal Step/ This flowchart indicates the disassembly steps for the Remove/*Unhook/ Loc. Part Fig. Unlock/Release/ cabinet parts, and the CBA in order to gain access to Note Unplug/Unclamp/ item(s) to be serviced. When reassembling, follow the Desolder steps in reverse order.
  • Page 16 [3] Rear Cabinet (S-3) (S-3) (S-3) (S-3) (S-1) (S-3) [2] Stand Cover [1] Arm Assembly (S-2) (S-2) Fig. D1 A81N5DC...
  • Page 17 [15] Front Cabinet (S-12) [14] Speaker (S-12) [13] LCD Module (S-13) [7] Jack Holder(D) [8] Digital Main (S-6) CBA Unit (S-7) (S-12) (S-12) (S-5) (S-8) (S-13) (S-11) [14] Speaker (S-10) [6] IR Sensor (S-12) [9] Jack (S-10) Holder(A) (S-4) (S-12) (S-9) (S-10) Module PCB...
  • Page 18 TV Cable Wiring Diagram To LCD Module Digital Main Main CBA CBA Unit CN1901 CN1902 CN701 CN1501 CN1502 CN1503 CN1504 To LCD CN401 Module CN702 CN703 CN704 CN402 CN801A Speaker CN705 CN61 CN706 AC CORD CN802A CN1152 CN1102 CN102 CN101 To Speaker Junction CBA WH1101B...
  • Page 19: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: “CBA” is abbreviation for How to set up the service mode: “Circuit Board Assembly.” Service mode: Note: Electrical adjustments are required after 1. Use the service remote control unit. replacing circuit components and certain mechanical parts. It is important to perform 2.
  • Page 20 2. Auto Calibration [Component] The following adjustment normally are not attempted in the field. Only when replacing the LCD Panel then adjust Purpose: To bring the color adjustment of each as a preparation. component into standard alignment. 5. White Balance Adjustment Symptom of Misadjustment: If this adjustment is [Video] incorrect, component signals do not reproduce the...
  • Page 21 5. [CUTOFF] 2. Input the White Purity. Press [1] button to select “COR” for Red Cutoff adjustment. Press [3] button to select “COB” for INPUT SIGNAL Blue Cutoff adjustment. [DRIVE] Press [4] button to select “DR” for Red Drive adjustment. Press [6] button to select “DB” for Blue Drive adjustment.
  • Page 22: How To Initialize The Lcd Television

    HOW TO INITIALIZE THE LCD TELEVISION How to initialize the LCD television: 1. Turn the power on. 2. To enter the service mode, press the service button on the service remote control unit. (Refer to page 5-1.) - To cancel the service mode, press [POWER] button on the service remote control unit.
  • Page 23: Block Diagrams

    BLOCK DIAGRAMS System Control Block Diagram A81N5BLS...
  • Page 24 IF/Video Block Diagram A81N5BLIF...
  • Page 25 Audio Block Diagram A81N5BLA...
  • Page 26 DTV Module Block Diagram A81N5BLDTV...
  • Page 27 LCD Block Diagram A81N5BLLCD...
  • Page 28 Power Supply Block Diagram A81N5BLP...
  • Page 29 LCD Backlight Block Diagram A81N5BLLB...
  • Page 30: Schematic Diagrams / Cba's And Test Points

    SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Standard Notes WARNING 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 for higher voltage, wattage, etc.
  • Page 31 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.
  • Page 32 Main 1/5 Schematic Diagram VOLTAGE CHART CN61 Pin No. Voltage VOLTAGE CHART CN704 Pin No. Voltage A81N5SCM1...
  • Page 33 Main 2/5 Schematic Diagram VOLTAGE CHART CN702 Pin No. Voltage A81N5SCM2...
  • Page 34 Main 3/5 Schematic Diagram VOLTAGE CHART CN703 Pin No. Voltage A81N5SCM3...
  • Page 35 Main 4/5 Schematic Diagram A81N5SCM4...
  • Page 36 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 supply CAUTION ! : For continued protection against risk of fire, NOTE: circuit are not defective before you connect the AC plug to the AC power supply.
  • Page 37 Function & Junction Schematic Diagram A81N5SCF...
  • Page 38 IR Sensor & Junction Schematic Diagram A81N5SCIR...
  • Page 39 DTV Module 1/2 Schematic Diagram 8-10 A81N5SCD1...
  • Page 40 DTV Module 2/2 Schematic Diagram 8-11 A81N5SCD2...
  • Page 41 Digital Main 1/6 Schematic Diagram 8-12 A81N5SCDM1...
  • Page 42 Digital Main 2/6 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC1201. IC1201 is divided into four and shown as IC1201 (1/4) ~ IC1201 (4/4) in this Digital Main Schematic Diagram Section. A81N5SCDM2 8-13...
  • Page 43 Digital Main 3/6 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC1201. IC1201 is divided into four and shown as IC1201 (1/4) ~ IC1201 (4/4) in this Digital Main Schematic Diagram Section. A81N5SCDM3 8-14...
  • Page 44 Digital Main 4/6 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC1201. IC1201 is divided into four and shown as IC1201 (1/4) ~ IC1201 (4/4) in this Digital Main Schematic Diagram Section. 8-15 A81N5SCDM4...
  • Page 45 Digital Main 5/6 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC1201. IC1201 is divided into four and shown as IC1201 (1/4) ~ IC1201 (4/4) in this Digital Main Schematic Diagram Section. A81N5SCDM5 8-16...
  • Page 46 Digital Main 6/6 Schematic Diagram A81N5SCDM6 8-17...
  • Page 47 Main CBA Top View CAUTION ! Because a hot chassis ground is present in the power CAUTION ! : For continued protection against risk of fire, Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. supply circuit, an isolation transformer must be used.
  • Page 48 Main CBA Bottom View CAUTION ! Because a hot chassis ground is present in the power CAUTION ! : For continued protection against risk of fire, Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. supply circuit, an isolation transformer must be used.
  • Page 49 Function CBA Top View IR Sensor CBA IR Sensor CBA Bottom View Top View BA81N0F01022-5 Function CBA Bottom View Junction CBA Junction CBA Top View Bottom View BA81N0F01022-2 BA81N0F01022-3 8-20...
  • Page 50: Waveforms

    WAVEFORMS WF1 ~ WF7 = Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram.) Input: NTSC Color Bar Signal (with 1kHz Audio Signal) Pin 6 of CN703 Pin 15 of CN703 CVBS 0.2V 20µs COMP-Pb 0.2V 20µs Pin 10 of CN703 Pin 14 of CN703 20µs...
  • Page 51: Wiring Diagram

    WIRING DIAGRAM 10-1 A81N5WI...
  • Page 52: Exploded Views

    EXPLODED VIEWS Cabinet CL1902 SP802 CL1901 Digital Main CBA Unit CLN802 LCD1 SP801 CLN801 IR Sensor CBA Function CBA See Electrical Parts List Main CBA for parts with this mark. DTV Module CBA Unit Junction CBA AC601 11-1 A81N5CEX...
  • Page 53 Packing Stand Assembly Some Ref. Numbers are not in sequence. Tape Packing Tape Tape Packing Tape Packing Tape Packing Tape Packing Tape Packing Tape 11-2 A81N5PEX...
  • Page 54: Mechanical Parts List

    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 improper servicing.
  • Page 55: Electrical Parts List

    ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. CHIP CERAMIC CAP . CH D 8pF/50V CHD1JD3CH8R0 Before replacing any of these components, read ELECTROLYTIC CAP . 100µF/10V M CE1AMASDL101 carefully the product safety notice in this service ELECTROLYTIC CAP .
  • Page 56 Ref. No. Description Part No. Ref. No. Description Part No. C711 CHIP CERAMIC CAP .(1608) B K 0.1µF/50V CHD1JK30B104 C901 ELECTROLYTIC CAP . 2200µF/25V M CE1EMZNDL222 C712 CHIP CERAMIC CAP .(1608) CH J 47pF/50V CHD1JJ3CH470 C902 ELECTROLYTIC CAP . 470µF/25V M CE1EMASDL471 C713 CHIP CERAMIC CAP .
  • Page 57 Ref. No. Description Part No. Ref. No. Description Part No. D418 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D934 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D419 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D940 ZENER DIODE MTZJT-7710B QDTB00MTZJ10 D420 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D942 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D421 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133...
  • Page 58 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES. 1/10W J 3.3k Ω Q902 NPN TRANSISTOR POWER 2SC4881F HFE QQWZ2SC4881F R411 RRXAJR5Z0332 MAX320 CARBON RES. 1/4W J 10k Ω R412 RCX4JATZ0103 Q905 TRANSISTOR 2SA950-O (TE2 F T) QQS002SA950F CARBON RES.
  • Page 59 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 180 Ω CHIP RES. 1/10W J 100k Ω R607 RCX4JATZ0181 R824 RRXAJR5Z0104 CARBON RES. 1/4W J 220 Ω CHIP RES. 1/10W J 100k Ω R608 RCX4JATZ0221 R825 RRXAJR5Z0104 CARBON RES.
  • Page 60 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 47k Ω CHIP RES. 1/10W F 4.7k Ω R922 RCX4JATZ0473 R1006 RRXAFR5H4701 CARBON RES. 1/4W J 1k Ω CHIP RES. 1/10W F 2.2k Ω R923 RCX4JATZ0102 R1007 RRXAFR5H2201 CHIP RES.
  • Page 61 JUNCTION CBA Ref. No. Description Part No. TP1803 PCB JUMPER D0.6-P5.0 JW5.0T Ref. No. Description Part No. TU61 TUNER UNIT U4002AF UTUNATSSP001 JUNCTION CBA ---------- Consists of the following: FUNCTION CBA CONNECTORS CN1102 242 SERIES CONNECTOR TUC-P04X-B1 WHT JCTUB04TG002 Ref. No. Description Part No.
  • Page 62 © 2007 Funai Electric Co., Ltd. All rights reserved. No part of this manual may be reproduced, copied, transmitted, disseminated, transcribed, downloaded or stored in any storage medium, in any form or for any purpose without the express prior written consent of Funai.

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