Sylvania LC200SL8 Service Manual

20" color lcd television

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Owner's manual (60 pages)

Service manual supplement (9 pages)

Specification sheet (1 page)

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Page 1 SY#..VA/I/#A SERVICE MANUAL 20" COLOR LCD TELEVISION LC200SL8 iiiiWiiiiiii iiiiii|ii ii£i_iiiiEii _iiii_iiiiiiiii iiiiJ|iii iiiiiiii|ii iiiiiiiiiiiiiiii iiiiiiiiiiiiiii iii£_ii£_ii£i _iiii_iiii_iiii iiiiimiim£i _iiii_iiii_iiii iii£EiEii _iiii_iiii_iiii iii£_ii£iim _iiii_iiiiiiiii ii£iEiEii _iiii_iiiiiiiii iiiiiii|iii iiiiiiii|ii iiiiiiiiiiiiiiii iiiiiiiiiiiiiii iii£_ii£_ii£i _iiii_iiii_iiii iii£_ii£_ii£i _iiii_iiii_iiii iiiiiEiEii _iiii_iiii_iiii iii£EiEii _iiii_iiiiiiiii iiiii_iiiiiiiiii _iiii_iiiiiiiii iiiiiiiiiiii iiiiiiii|ii iiiiiiiiii...
Page 2: 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 3: Specifications
SPECIFICATIONS < TUNER > VHF/UHF Input : 75 ohm Unbal, F type Intermediate Freq. : Picture 45.75 MHz, Sound 41.25 MHz Unit Nominal Limit Description Condition 1. Video S/N 80dB >43 2. Audio S/N 80dB >45 < LCD PANEL > Description Condition Unit...
Page 4 < ATSC > Condition Unit Nominal Limit Description 1. RECEIVED FREQ. RANGE >100 (-28dBm) VHF LOW BAND. CH.4 2. ATSC DYNAMIC RANGE VHF HI BAND. CH.10 -76/0 (min./max.) UHF BAND. CH.41 VHF LOW BAND. CH.4 3. ATSC SUSCEPTIBILITY VHF HI BAND. CH.10 <26 RANDOM NOISE UHF BAND.
Page 5: 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 6 Design Alteration Warning - Do not alter or add Product Safety Notice - Some electrical and to the mechanical or electrical design of this TV mechanical parts have special safety-related characteristics which are often not evident from receiver. Design alterations and additions, 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 7 Precautions during Servicing A. Parts identified by the _ symbol are critical for When connecting or disconnecting the internal safety. connectors, first, disconnect the AC plug from the Replace only with part number specified. AC supply outlet. B. In addition to safety, other parts and assemblies M.
Page 8 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 9: Standard Notes For Servicing
STANDARD NOTES FOR SERVICING Circuit Board Indications How to Remove / Install Flat Pack-IC The output pin of the 3 pin Regulator ICs is 1. Removal indicated as shown. With Hot-Air Flat Pack-IC Desoldering Machine: Bottom View Top View Prepare the hot-air flat pack-IC desoldering machine, then apply hot air to the Flat Pack-IC (about 5 to 6 seconds).
Page 10 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 Using desoldering braid, remove the solder from pin or the solder lands under the IC when all pins of the flat pack-IC.
Page 11: Shown In Fig
With Iron Wire: Installation Using desoldering braid, remove the solder from 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 12 Instructions for Handling Semi- conductors Electrostatic breakdown of the semi-conductors 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_-_) t hat is properly grounded to remove any static electricity that may be charged on the body.
Page 13: Cabinet Disassembly Instructions
CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart Removal This flowchart indicates the disassembly steps for the Step/ RemovePUnhook/ Part Unlock/Release/ cabinet parts, and the CBA in order to gain access to Loc. Fig. Note Unplug/Unclamp/ item(s) to be serviced. When reassembling, follow the Desolder steps in reverse order.
Page 14 [3] Rear Cabinet (s-3) (s-3) (S-1) (s-3) [2] Stand Cover _o_>'o [1] Arm Assembly (S_2)/_& _ (S__2) Fig. D1 A71 40DC...
Page 15 [14] Front Cabinet (s-s) [4] Function [12] Junction-B (s-5) Speaker ..[10] LCD Module Holder Desolder [13] Speaker [6] IR Sensor [9] Main CBA [7] Jack (s4o) Holder !/ // [13] Speaker (S-11) Speaker Holder Module PCB [11] Holder (s-6) (sqo) (s-9) [5] Tilt Stand Holder...
Page 16 TV Cable Wiring Diagram Function o LCD Module Main CBA I°"'°7 CN1202 CN1201 CN1301 E] CN401 _--- F1 CN402 Module F] CN403 Junction=A CN62 CN61 CL801 CN801 CN802 r- -_CN1302 Junction=B_.) CN102 CL 1104 To Speaker DTV Module CBA Unit IR Sensor Fig.
Page 17 ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: "CBA" is abbreviation How to set up the service mode: "Circuit Board Assembly." Service mode: Note: Electrical adjustments are required after Use the service remote control unit. replacing circuit components and certain mechanical parts. It is important to perform Turn the power on.
Page 18: S-Brt
The following adjustment normally are not Button Data attempted in the field. Only when replacing the Item (on the service Value LCD Panel then adjust as a preparation. remote control) D2-BRT 2. White Balance Adjustment D2-CNT Purpose: To mix red, green and blue beams correctly D2-CLR-R for pure white.
Page 19 arenotwithinspecification, adjust"DB(C/D1)" o r [VIDE02] "DR(C/D1)". R efer t o "1.Initial S etting." Press [SETUP] button on the service remote [RF/VIDEO1 ]----(APE 20%) control unit and press [3] on the service remote Press [3]button toselect " COB(C/D1 )" forBlue control (selecting "C-BRT" mode). adjustment.
Page 20: How To Initialize The Lcd Television
HOW TO INITIALIZE THE LCD TELEVISION How to initialize the LCD television: Turn the power on. (Use main power on the TV unit.) 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.
Page 21: Block Diagrams
BLOCK DIAGRAMS System Control Block Diagram A7140BLS...
Page 22 IF/Video Block Diagram < A7140BLIF...
Page 23 Audio Block Diagram o< o<I _o L_ < "_ / ......\ ..... \ ÷ < A7140BLA...
Page 24 DTV Module Block Diagram "x ° i A7140BLDTV...
Page 26 Power Supply Block Diagram >_ s<-@ "" >0 b-x:: >, o°_ N_°E A7140BLP...
Page 27 LCD Backlight Block Diagram £3 £3 \__J \__J > A7140BLLB...
Page 28: Schematic Diagrams / Cba's And Test Points
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 for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements;...
Page 29 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS THE FOLLOWING PAGES: 1. CAUTION: CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE A, VFUSE. ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE Me:ME TYPE DE A, V. 2.
Page 30 Main 1/5 Schematic Diagram VOLTAGE CHART CN1201 Voltage L¸ i '{;ON i ]Nul _AiF 2/5 / ,_i _ / o; d4,_TF 3/5 / __ii i7_7_7_ ..7_i : _ !CONT =k_,AiN4/5 / _--"_' i i _ .._ _ ..EVEN ....
Page 31 Main 2/5 Schematic Diagram 7 ¸ k }(ii(i ¸ MAEN CONTINUE (MAIN RBSJ AUDIO(L)-INi AUDIO(R] 0807 AUD:[O(L) B852 AUDIO(R)-OUT _814 RBJ7 IDA52 TC4052BF(EINF] (INPUT SELECT( R838 ID851 AN5832SA_EJV RB27 R885 _OOK _10OK CONTINUE 3/5) (MAIN AUDIO([( INPUT_O(INV) INPUT J(INV] 12C/PARA MODE FOMO MUTE...
Page 32 Main 3/5, Junction-A & Junction-B Schematic Diagram i j (i 9} ! A}( i{Xi ui!L: 4;i 3} &! (CONT!NUE_ F----- _AiN 2/5/ C7_4 iVlA Z N AUDIOIR)AUDIOIL) OuTINI ....................... 4_ ............................. _..........................AUDIOIL) IN i C7_51_i ................................... AUDIOIR)_OU_ ..AUO!O R) i..
Page 33 Main 4/5 Schematic Diagram MATN CN40E BCgOl BEAO CN40E BCg04 BEAD 040B 8SCBJ2o (k_OV REG / Rq!t 20 8 CN403 +c.oi 47/50V D40i B409 +C472 7_8B 0405 D407 3 (SWTTC ING} IR40g 28_/_7b /SSJ3, R413 D,108 MTZdT -- 6402 _8403 P/412 _BOOP JO750V...
Page 34 Main 5/5 Schematic Diagram CAUTION NOTE: 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 The voltage for parts in hot circuit is measured using replace only with same type 4 A, 125V fuse.
Page 35 Function Schematic Diagram RiiOi IVOL DOWN] IINPUT SELECT] swllo_ sw!t02 swil03 swll04 swi!05 swtt07 TO MAIN CBA) CNi30i KEY-IN-2 KEY-IN-! AL+3,3V(D) SW!I_t nito9 UNLESS OTHER!4ISE SPECIFIEB= SWITCHES ARE SKQSAB, A7140SCF...
Page 36 IR Sensor Schematic Diagram SENSOR KSM-602SR2E-2 (RENOTE SENSOR) TO MAIN CBA) CLtI04 Rl143 CN1302 AL+3.3V(D) _Ct142 '2.2/50V REMOTE A7140SCI R...
Page 37 DTV Module 1/2 Schematic Diagram Fh_{ q k L ;k L 8-10 A7140SCD1...
Page 38 DTV Module 2/2 Schematic Diagram £ 8-11 A7140SCD2...
Page 39 Main CBA Top View CAUTION Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used. Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. protection against fire, Also, in order to have the ability to increase the input If Main Fuse (F601) is blown, check to see that all components...
Page 40 Main CBA Bottom View CAUTION Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used. Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. CAUTION ! : For continued protection against risk of fire, Also, in order to have the ability to increase the input If Main Fuse (F601) is blown,...
Page 41 IR Sensor CBA IR Sensor Function CBA Top View Bottom View Top View BA7120F01021-2 Junction-A CBA Top & Bottom View Function CBA Bottom View BA7120F01021-3 Junction-B CBA Top & Bottom View BA7120F01021-1 BA7120F01021-4 8-14...
Page 42: Waveforms
WAVEFORMS WF1~WF7 Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram,) input: NTSC Color Bar Signal (with lkHz Audio Signal) Pin 71 of tC1202 Pin 56 of IC1202 Pin 76 of tC1202 Pin 66 of tC1202 Pin 57 of IC1202 Pin 14 of IC801 Pin 75 of IC1202 LC5WF...
Page 43: Wiring Diagram
WIRING DIAGRAM 10-1 A7140WI...
Page 44: Ic Pin Function Descriptions
IC PIN FUNCTION DESCRIPTIONS IC1202 (LCD Drive / LCD Signal Signal Name Function Process / TV Micro Controller) XOUT Crystal Oscillation Output (27MHz) Signal Name Function VDD+3.3V +3.3V VDD 40 VSS VDD+3.3V +3.3V VDD 41 VSS KEY-IN-1 Key Input 1 42 VDD+3.3V +3.3V VDD KEY-IN-2...
Page 45 Signal Name Function Signal Name Function 119 VSS S-VIDEO-Y Luminance Signal Input AVDDA +3.3V VDD 120 VSS 121 VSS VDD+3.3V +3.3V VDD 122 LPF Panel Clock PLL Filter 123 RSPI Reference Terminal 124 NU Not Used VDD+3.3V +3.3V VDD 125 CLKL Clock Signal Output VDD+3.3V +3.3V VDD...
Page 46: Exploded Views
EXPLODED VIEWS Cabinet SP802 B14 ... -A10 iJunction-B CBA :: " iIR Sensor CBA:: SP801_-O_ LCD1 ..". See Electrical Parts List for parts with this mark. 12-1 A71 40CEX...
Page 47 Packing Some Ref. Numbers not in sequence. Packing Tape Tape Packing Ta_,.././././ ./" Packing Tape \ Packing Tape 12-2 A7140PEX...
Page 48: 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 49: 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 RES.(1608) 1/10W 0 _1 RRXAZR5Z0000 Before replacing any of these components, read CHIP CERAMIC CAR CH J 330pF/50V CHD1JJ3CH331 carefully the product safety notice in this service CHIP CERAMIC CAR CH J 330pF/50V...
Page 50 Ref, No. Description Part No. Ref. No. Description Part No. C753 CHIP CERAMIC CAR B K 1500pF/50V CHD1JK30B152 C1205 CHIP CERAMIC CAR(1608) F Z 0.1p F/25V CHD1EZ30F104 C754 CHIP CERAMIC CAR B K 1500pF/50V CHD1JK30B152 C1206 ELECTROLYTIC CAR 100# F/16V M CE1CMASDL101 C766 CHIP CERAMIC CAR(1608) F Z 0.1# F/25V...
Page 51 Ref. No. Description Part No. Ref, No, Description Part No, D470 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 C1705 CH P CERAM C CAR FZ lpF/10V CHD1AZ30F105 CONNECTORS D471 SWITCHING DIODE 1SS133(T-77) QDTZOO1SS133 CN4Ol BACK LIGHT CONNECTOR 1717369-1 JB17DO2APOO1 D472 SWITCHING DIODE 1SS133(T-77) QDTZOO1SS133 CN4O2 BACK LIGHT CONNECTOR 1717369-1...
Page 52 Ref, No. Description Part No. Ref. No. Description Part No. D1001 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 Q707 TRANSISTOR 2SC2785(F) QQSF02SC2785 D1002 IC SHUNT REGULATOR KIA431-AT/P NSZBAOTJY036 Q708 TRANSISTOR 2SC2785(F) QQSF02SC2785 D1003 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133 Q709 TRANSISTOR 2SC2785(F) QQSF02SC2785 D1004 ZENER DIODE MTZJT-7724B QDTB00MTZJ24 Q802 TRANSISTOR 2SC2785(F)
Page 53 Ref, No. Description Part No. Ref, No. Description Part No. R413 CHIP RES. 1/10W J 33k _,t RRXAJR5Z0333 R609 CARBON RES. 1/4W J 390k _,t RCX4JATZ0394 R414 CARSON RES. 1/4W J 680 _ RCX4JATZ0681 R610 CARBON RES. 1/4W J 150 _ RCX4JATZ0151 R415 CARSON RES.
Page 54 Ref, No. Description Part No. Ref. No. Description Part No. R844 CHIP RES. 1/10W J 2.2k _ RRXAJR5Z0222 R971 CARBON RES. 1/4W J lk _,t RCX4JATZ0102 R851 CHIP RES. 1/10W J 100 _ RRXAJR5Z0101 R974 PCB JUMPER D0.6-P5.0 JW5.0T R852 CHIP RES.
Page 55 Ref, No, Description Part No, Ref, No. Description Part No. R1233 CHIP RES. 1/10W J 56 _ RRXAJR5Z0560 R1364 CHIP RES. 1/10W J lk_ RRXAJR5Z0102 R1234 CHIP RES. l/lOW J 56 _ RRXAJR5ZO560 R1710 CHIP RES. l/lOW J 1Ok_,t RRXAJRSZOlO3 R1235 CHIP RES.
Page 56 Ref, No. Description Part No. Rl101 CARBON RES. 1/4WJ 10k_ RCX4JATZ0103 Rl102 CARBON RES. 1/4WJ 100_ RCX4JATZ0101 Rl103 CARBON RES. 1/4WJ 1.5k _,t RCX4JATZ0152 Rl104 CARBON RES. 1/4WJ 1.5k _,t RCX4JATZ0152 Rl105 CARBON RES. 1/4W J 2.2k _,t RCX4JATZ0222 Rl106 CARBON RES.
Page 57 © 2007Funai E lectric Co.,Ltd. Allrightsreserved. Nopartofthismanual maybereproduced, copied, t ransmitted, disseminated, transcribed, downloaded or storedinanystorage medium, inanyformorforanypurpose without t heexpress p riorwritten consent of Funai. F urthermore, anyunauthorized commercial distribution o fthismanual or anyrevision hereto is strictly prohibited. Information i nthisdocument issubject t ochange without n otice. F unai r eserves t herighttochange thecontent herein without t heobligation t o notify anyperson or organization ofsuchchanges.

Sylvania LC200SL8 Service Manual

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