Sylvania LC320SS9 Service Manual
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Sylvania LC320SS9 Service Manual

32″ color lcd television
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SUPPLEMENT
SERVICE MANUAL
This service manual shows only the differences between
the model LC320SS9 A and the original model LC320SS9.
All other information is described in the service manual
of the original model LC320SS9.
32" COLOR LCD TELEVISION
LC320SS9 A

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Summary of Contents for Sylvania LC320SS9

  • Page 1 SUPPLEMENT SERVICE MANUAL This service manual shows only the differences between the model LC320SS9 A and the original model LC320SS9. All other information is described in the service manual of the original model LC320SS9. 32″ COLOR LCD TELEVISION LC320SS9 A...
  • Page 2 Different parts from the original model (LC320SS9) Ref. No. Description Part No. MECHANICAL PARTS FRONT CABINET A8AF4UH 1EM022845 RATING LABEL A8AF4UH ---------- POP LABEL A8AF4UH ---------- LCD1 LCD MODULE CPT 8BIT A GRADE UG320XC CARTON A8AF4UH 1EM426897A REMOTE CONTROL NF015UD...
  • Page 3 SERVICE MANUAL 32″ COLOR LCD TELEVISION LC320SS9...

  • 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 Ω 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. Description Condition Unit Nominal Limit 1. Audio Output Max Power Lch/Rch 10.0/10.0 9.0/9.0 (ATSC 0dBfs) 2. Audio Distortion (NTSC) 500mW: Lch/Rch 0.5/0.5 2.0/2.0 -6dB: Lch 70 to 10 k 3.

  • 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/ Remove/*Unhook/ This flowchart indicates the disassembly steps for the 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 [4] Rear Cabinet (S-4) (S-4) (S-6) (S-4) (S-5) (S-6) (S-1) (S-4) (S-4) [3] Stand Hinge [2] Stand Cover [1] Stand Base Plate (S-3) (S-2) (S-3) Fig. D1 A8AF0DC...
  • Page 17 [9] Digital Main CBA Unit [8] Shield Box (S-13) (S-11) (S-14) (S-12) (S-14) [6] Side Jack (S-13) [5] Jack Holder (A) (S-7) (N-1) (S-8) [7] Shield (T) (S-15) (S-7) (S-10) (S-9) (S-15) [10] Power Supply CBA (S-15) Fig. D2 A8AF0DC...
  • Page 18 (S-17) (S-18) (S-17) (S-19) (S-17) [14] Stand Holder [13] PCB Holder (L,R) (S-16) Desolder (S-17) [12] Junction-B CBA (S-16) [11] Inverter CBA (S-16) Fig. D3 A8AF0DC...
  • Page 19 [21] Front Cabinet [15] LCD Module Assembly [20] Speaker CLN802 (S-23) [19] Speaker CLN801 Holder (L,R) (S-23) [20] Speaker (S-23) [19] Speaker Holder (L,R) (S-23) Desolder [16] Junction-A (S-22) (S-21) [17] IR Sensor [18] Function (S-20) Fig. D4 A8AF0DC...
  • Page 20 TV Cable Wiring Diagram To LCD Module Assembly Digital Main CBA Unit Side Jack To LCD CL1000B CN1000 CN4501 CN4502 Module Junction-B Assembly CN751 Inverter CBA CN3601 CN3701 CN3704 CN1050 Power Supply CN1100 CL1000A CN301 CN302 CN303 CN501 CN1150 CN701 CN1200 CN1901 CN601...

  • Page 21: 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 22 1. Purity Check Mode 2. VCOM Adjustment. This mode cycles through full-screen displays of red, Test Point Adj. Point green, blue, and white to check for non-active pixels. [CH o/p] Screen 1. Enter the Service mode. buttons 2. Each time pressing [7] button on the service M.
  • Page 23 The following adjustment normally are not attempted in 5. [CUTOFF] the field. Only when replacing the LCD Panel then adjust Press [3] button to select “COB” for Blue Cutoff as a preparation. adjustment. Press [1] button to select “COR” for Red Cutoff adjustment.

  • Page 24: 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 remote control unit.

  • Page 25: Block Diagrams

    BLOCK DIAGRAMS System Control Block Diagram A8AF0BLS...
  • Page 26 Video Block Diagram A8AF0BLV...
  • Page 27 Audio-1 Block Diagram A8AF0BLA1...
  • Page 28 Audio-2 Block Diagram A8AF0BLA2...
  • Page 29 Digital Signal Process Block Diagram A8AF0BLD...
  • Page 30 Inverter Block Diagram A8AF0BLINV...
  • Page 31 Power Supply Block Diagram A8AF0BLP...

  • Page 32: 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 33 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 34 Power Supply 1/3 Schematic Diagram NOTE: The voltage for parts in hot circuit is measured using hot GND as a common terminal. VOLTAGE CHART CN301 Pin No. Voltage 23.5 13.1 -6.9 A8AF0SCP1...
  • Page 35 Power Supply 2/3 Schematic Diagram VOLTAGE CHART CN303 Pin No. Voltage A8AF0SCP2...
  • Page 36 Power Supply 3/3 & Side Jack Schematic Diagram VOLTAGE CHART CN302 Pin No. Voltage A8AF0SCP3...
  • Page 37 Inverter & Junction-B Schematic Diagram CAUTION ! NOTE: Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. CAUTION ! : For continued protection against risk of fire, The voltage for parts in hot circuit is measured using If Main Fuse (F1901) is blown , check to see that all components in the power supply replace only with same type 4 A, 125V fuse.
  • Page 38 Function Schematic Diagram A8AF0SCF...
  • Page 39 IR Sensor & Junction-A Schematic Diagram A8AF0SCIR...
  • Page 40 Digital Main 1/4 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into four and shown as IC3301 (1/4) ~ IC3301 (4/4) in this Digital Main Schematic Diagram Section. A8AF0SCD1...
  • Page 41 Digital Main 2/4 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into four and shown as IC3301 (1/4) ~ IC3301 (4/4) in this Digital Main Schematic Diagram Section. 8-10 A8AF0SCD2...
  • Page 42 Digital Main 3/4 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into four and shown as IC3301 (1/4) ~ IC3301 (4/4) in this Digital Main Schematic Diagram Section. 8-11 A8AF0SCD3...
  • Page 43 Digital Main 4/4 Schematic Diagram 1 NOTE: The order of pins shown in this diagram is different from that of actual IC3301. IC3301 is divided into four and shown as IC3301 (1/4) ~ IC3301 (4/4) in this Digital Main Schematic Diagram Section. A8AF0SCD4 8-12...
  • Page 44 Power Supply CBA Top View Because a hot chassis ground is present in the power NOTE: supply circuit, an isolation transformer must be used. The voltage for parts in hot circuit is measured using Also, in order to have the ability to increase the input hot GND as a common terminal.
  • Page 45 Power Supply CBA Bottom View Because a hot chassis ground is present in the power NOTE: supply circuit, an isolation transformer must be used. The voltage for parts in hot circuit is measured using Also, in order to have the ability to increase the input hot GND as a common terminal.
  • Page 46 Inverter CBA Top View Because a hot chassis ground is present in the power CAUTION ! supply circuit, an isolation transformer must be used. Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. Also, in order to have the ability to increase the input CAUTION ! : For continued protection against risk of fire, If Main Fuse (F1901) is blown , check to see that all components in the power supply...
  • Page 47 Inverter CBA Bottom View Because a hot chassis ground is present in the power CAUTION ! supply circuit, an isolation transformer must be used. Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. Also, in order to have the ability to increase the input CAUTION ! : For continued protection against risk of fire, If Main Fuse (F1901) is blown , check to see that all components in the power supply...
  • Page 48 Function CBA Top View IR Sensor CBA Top View Function CBA Bottom View IR Sensor CBA Bottom View BA8AF0F01022-3 BA8AF0F01022-4 8-17...
  • Page 49 Side Jack CBA Top View Junction-A CBA Junction-A CBA Top View Bottom View BA8AF0F01022-5 Side Jack CBA Bottom View Junction-B CBA Junction-B CBA Top View Bottom View BA8AF0F01022-2 BA8AF0F01031 8-18...

  • 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 23 of CN302 Pin 16 of CN302 CVBS 0.2V 20µs VIDEO-Pb 0.2V 20µs Pin 19 of CN302 Pin 17 of CN302 20µs...

  • Page 51: Wiring Diagram

    WIRING DIAGRAM 10-1 A8AF0WI...

  • Page 52: Exploded Views

    EXPLODED VIEWS Cabinet Digital Main CBA Unit CL4502 CL4501 CL802 SP802 CL801 SP801 Side Jack CBA Junction-A IR Sensor CBA Function CBA LCD1 Inverter CBA Junction-B CBA See Electrical Parts List for parts with this mark. Power Supply CBA AC1901 11-1 A8AF0CEX...
  • Page 53 Packing Some Ref. Numbers are not in sequence. Packing Tape Tape Packing Tape Tape Packing Tape 11-2 A8AF0PEX...

  • Page 54: Mechanical Parts List

    MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. STAND BAG A71FCUH 1EM425338 Before replacing any of these components, read ACCESSORIES carefully the product safety notice in this service BAG POLYETHYLENE 235X365XT0.03 0EM408420A manual.

  • 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. C601# ELECTROLYTIC CAPACITOR 270µF/200V CA2D271DYG05 Before replacing any of these components, read C602 CERAMIC CAP . HR 470pF/2KV CCD3DKA0R471 carefully the product safety notice in this service C603...
  • Page 56 Ref. No. Description Part No. Ref. No. Description Part No. C807 CHIP CERAMIC CAP .(1608) B K 0.47µF/16V CHD1CK30B474 C7715 CHIP CERAMIC CAP .(1608) B K 0.047µF/50V CHD1JK30B473 C808 CHIP CERAMIC CAP .(1608) B K 0.1µF/50V CHD1JK30B104 C7729 CHIP CERAMIC CAP . CH J 39pF/50V CHD1JJ3CH390 C809 CHIP CERAMIC CAP .(1608) B K 0.47µF/16V...
  • Page 57 Ref. No. Description Part No. Ref. No. Description Part No. D649 ZENER DIODE MTZJT-7733B QDTB00MTZJ33 Q801 TRANSISTOR 2SC2120-Y(TE2 F T) QQSY2SC2120F D650 ZENER DIODE MTZJT-776.2C QDTC0MTZJ6R2 Q7201 TRANSISTOR KTC3199-GR-AT/P NQS4KTC3199P D651 DIODE FR104-B NDLZ000FR104 Q7301 TRANSISTOR KTC3199-GR-AT/P NQS4KTC3199P D652 ZENER DIODE MTZJT-7724A QDTA00MTZJ24 Q7302 TRANSISTOR KTC3199-GR-AT/P...
  • Page 58 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 6.8k Ω CHIP RES. 1/10W J 47k Ω R634 RCX4JATZ0682 R806 RRXAJR5Z0473 CARBON RES. 1/4W J 270 Ω CHIP RES. 1/10W J 560 Ω R635 RCX4JATZ0271 R807 RRXAJR5Z0561 CHIP RES.
  • Page 59 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES. 1/10W J 100 Ω CHIP RES. 1/10W J 33k Ω R7764 RRXAJR5Z0101 R762 RRXAJR5Z0333 CHIP RES. 1/10W J 75 Ω R7771 RRXAJR5Z0750 MISCELLANEOUS CHIP RES. 1/10W J 100 Ω R7772 RRXAJR5Z0101 JK751...
  • Page 60 MUT CBA Ref. No. Description Part No. C1165 CHIP CERAMIC CAP . B K 1500pF/50V CHD1JK30B152 Ref. No. Description Part No. C1166 CHIP CERAMIC CAP . B K 2200pF/50V CHD1JK30B222 MUT CBA 1FSA10452 C1167 CHIP CERAMIC CAP .(1608) B K 0.01µF/50V CHD1JK30B103 Consists of the following C1211...
  • Page 61 Ref. No. Description Part No. Ref. No. Description Part No. D1064 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D1982 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D1065 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D1990# DIODE SCHOTTKY FD867-15L QDWZFD86715L D1066 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 D1991# DIODE SCHOTTKY FD867-15L QDWZFD86715L D1067 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133...
  • Page 62 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES. 1/10W F 6.8k Ω CHIP RES. 1/10W J 10k Ω R1069 RRXAFR5H6801 R1511 RRXAJR5Z0103 CHIP RES. 1/10W J 1M Ω CHIP RES. 1/10W F 47.0 k Ω R1070 RRXAJR5Z0105 R1550 RRXAFR5H4702...
  • Page 63 Ref. No. Description Part No. T1200 TRANS INVERTER HVT-133 LTZ3PC0XB004 T1250 TRANS INVERTER HVT-133 LTZ3PC0XB004 TM1901 EYELET TYPE D-1 0VM406868 TM1902 EYELET TYPE D-1 0VM406868 T1951# TRANS POWER 8708 LTT3PC0KT041 JUNCTION-B CBA Ref. No. Description Part No. JUNCTION-B CBA ---------- Consists of the following: CONNECTOR CN1000...
  • Page 64 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. LC320SS9 A8AF0UH 2008-02-13...

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