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Sylvania STRL315 Service Manual

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SERVICE MANUAL
13" COLOR
LCD
TELEVISION
SRTL313
15" COLOR
LCD
TELEVISION
SRTL315

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Summary of Contents for Sylvania STRL315

  • Page 1 SERVICE MANUAL 13” COLOR TELEVISION SRTL313 15” COLOR TELEVISION SRTL315...

  • 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 de- scribed 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> ANT. Input ------------------- 75ohm Unbal., F type Reference Level------------20Vp-p (CRT Green Cathode) Test Input Signal -----------400Hz 30% modulation Description Condition Unit Nominal Limit 1. Intermediate Freq. Picture 45.75 Sound 41.25 2. Color Killer Sens. CH-2 dBµV CH-10 dBµV CH-55 dBµV 3.
  • Page 4 <VIDEO> Description Condition Unit Nominal Limit 1. Over Scan Horizontal Vertical 2. Color Temperature °K 9200 0.286 ±0.03 0.294 ±0.03 3. Resolution Horizontal line Vertical line <AUDIO> All items are measured across 8Ω load at speaker output terminal with L.P.F. Description Condition Unit...

  • 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 ing is performed that involves B+, horizontal de- earth ground. If a voltage reading in excess of 1.0V flection or high voltage. Correct operation of the X- is obtained, remove and reinsert the AC power radiation protection circuits also must be recon- plug in the opposite polarity and again measure firmed each time they are serviced.
  • Page 7 Precautions during Servicing 3) Align the lengths of the wires to be connected. In- sert the wires fully into the connector. A. Parts identified by the ( # ) symbol are critical for 4) Use the crimping tool to crimp the metal sleeve at safety.
  • Page 8 Safety Check after Servicing Examine the area surrounding the repaired location Chassis or Secondary Conductor for damage or deterioration. Observe that screws, parts and wires have been returned to original posi- tions. Afterwards, perform the following tests and con- Primary Circuit Terminals firm the specified values in order to verify compliance with safety standards.

  • Page 9: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications (2) Remove the flat pack-IC with tweezers while ap- plying the hot air. a. The output pin of the 3 pin Regulator ICs is indicat- (3) Bottom of the flat pack-IC is fixed with glue to the ed as shown.
  • Page 10 With Soldering Iron: soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) (1) Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder (5) Release the flat pack-IC from the CBA using twee- flux which is applied to all pins of the flat pack-IC, zers.
  • Page 11 2. Installation Instructions for Handling Semiconductors (1) Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA Electrostatic breakdown of the semiconductors may so you can install a replacement flat pack-IC more occur due to a potential difference caused by electro- easily.

  • Page 12: Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS [ SRTL315 ] (1): Order of steps in Procedure. When reassembling, follow the steps in reverse order.These numbers 1. Disassembly Flowchart are also used as the Identification (location) No. of parts in Figures. This flowchart indicates the disassembly steps for the (2): Parts to be removed or installed.
  • Page 13 [1] REAR CABINET Fig. 1 [5] SPEAKER L [9] FRONT CABINET [7] PCB HOLDER [2] MAIN CBA [3] IR SENSOR [8] LIQUID CRYSTAL PANEL [4] INVERTER [6] SPEAKER R Fig. 2 L0110DC...
  • Page 14 TV Cable Wiring Diagram To SPEAKER To SPEAKER CN801 CN802 MAIN CBA CN451 CN602 CN191A To LIQUID CRISTAL PANEL IR SENSOR CBA CN191B To INVERTER Fig. 3 L0110DC...
  • Page 15 [ SRTL313 ] (1): Order of steps in Procedure. When reassembling, follow the steps in reverse order.These numbers 1. Disassembly Flowchart are also used as the Identification (location) No. of parts in Figures. This flowchart indicates the disassembly steps for the (2): Parts to be removed or installed.
  • Page 16 [1] REAR CABINET Fig. 4 [5] SPEAKER L [9] FRONT CABINET [7] PCB HOLDER [2] MAIN CBA [3] IR SENSOR [8] LIQUID CRYSTAL PANEL [4] INVERTER [6] SPEAKER R Fig. 5 L0130DC...
  • Page 17 TV Cable Wiring Diagram To SPEAKER To SPEAKER CN801 CN802 MAIN CBA CN451 CN602 CN191A To LIQUID CRISTAL PANEL IR SENSOR CBA CN191B To INVERTER Fig. 6 L0130DC...

  • Page 18: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS 1. Initial Setting General Note: "CBA" is abbreviation for "Circuit Board Assem- General bly." Enter the Service mode. NOTE: Electrical adjustments are required after replacing Set the each initial data as shown on tabel 1 below. circuit components and certain mechanical parts. It is important to perform these adjustments only after all Table 1: Initial Data repairs and replacements have been completed.
  • Page 19 2. V-Phase Adjustment 4. Sub-Brightness Adjustment Purpose: To match the vertical phase to LCD panel. Purpose: To get proper brightness. Symptom of Misadjustment: If Sub-Brightness is Symptom of Misadjustment: The vertical lines on incorrect, proper brightness cannot be obtained by the display may not be properly displayed.
  • Page 20 The following adjustment normally are not attempted in the field. Only when replacing the LCD Panel then adjust as a preparation. 5. White Balance Adjustment Purpose: To mix red, green and blue beams correctly for pure white. Symptom of Misadjustment: White becomes bluish or reddish.

  • Page 21: Block Diagram

    BLOCK DIAGRAMS System Control Block Diagram MAIN CBA RCV101 IC111 (TV MICON) TU001 (TUNER UNIT) D199 RECEIVER CN191A CN191B POWER RCV-IN REMOTE Q191 POWER-LED P-ON-H DRIVE IR SENSOR CBA IC151 (MEMORY) SDA1 SDA1 SCL1 SCL1 I2C OPEN I2C-OPEN SW101-107 KEY-IN SWITCH CN151A (NO CONNECTION) CN151A is used...
  • Page 22 Video Block Diagram MAIN CBA LCD101 IC700 (INPUT SELECT) IC111 (VIDEO SIGNAL PROCESS) IC333 (LCD DRIVE/LCD RGB SIGNAL PROCESS) (LCD PANEL UNIT) Q741 Q262 Q261 CN451A BUFFER BUFFER DR(0) VIDEO Q272 Q271 WF10 DR(1) SIGNAL BUFFER DR(2) PROCESS Q282 Q281 WF11 DR(3) BUFFER...
  • Page 23 Audio Block Diagram AUDIO SIGNAL MAIN CBA IC851 (INPUT SELECT) IC801 (AUDIO AMP) LINE IN1 JK711 CN801 CLN801 SP801 LINE IN2 AUDIO(L) SP-L 1 SPEAKER TUNER SP-GND 2 L-CH (L-CH) JK721 AUDIO(R) MUTE DC VOL. CTRL JK781 AUDIO(L) (R-CH) JK801 LINE IN1 HEADPHONE LINE IN2...
  • Page 24 Power Supply Block Diagram CAUTION ! Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. NOTE : If Main Fuse (F601) is blown, check to see that all components in the power supply CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, The voltage for parts in hot circuit is measured using...

  • Page 25: Schematic Diagram / 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 compo- nents rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements;...
  • Page 26 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. 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 27 Main 1/4 & IR Sensor Schematic Diagram VIDEO SIGNAL AUDIO SIGNAL MAIN 1/4 Ref No. Position IC111 IC151 IC152 TRANSISTORS Q113 Q121 Q191 Q201 Q261 Q262 Q271 Q272 Q281 Q282 CONNECTORS CN151A CN191A L0110SCM1...
  • Page 28 Main 2/4 Schematic Diagram VIDEO SIGNAL AUDIO SIGNAL MAIN 2/4 Ref No. Position IC700 IC801 IC851 TRANSISTORS Q701 Q731 Q741 Q751 Q752 Q761 Q771 CONNECTORS CN201A CN801 CN802 L0110SCM2...
  • Page 29 Main 3/4 Schematic Diagram VIDEO SIGNAL MAIN 3/4 Ref No. Position IC333 TRANSISTORS Q291 Q581 Q582 Q583 Q584 CONNECTORS CN401A CN451A L0110SCM3...
  • Page 30 Main 4/4 Schematic Diagram CAUTION ! CAUTION: FOR CONTINUED PROTECTION AGAINST RISK Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. OF FIRE, REPLACE ONLY WITH SAME TYPE 8A, 125V FUSE. If Main Fuse (F601) is blown, check to see that all components in the power supply ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE circuit are not defective before you connect the DC plug to the DC power supply.
  • Page 31 Main CBA Top View CAUTION ! CAUTION: FOR CONTINUED PROTECTION AGAINST RISK Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. MAIN CBA OF FIRE, REPLACE ONLY WITH SAME TYPE 8A, 125V FUSE. If Main Fuse (F601) is blown, check to see that all components in the power supply Ref No.
  • Page 32 Main CBA Bottom View CAUTION ! CAUTION: FOR CONTINUED PROTECTION AGAINST RISK Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. OF FIRE, REPLACE ONLY WITH SAME TYPE 8A, 125V FUSE. If Main Fuse (F601) is blown, check to see that all components in the power supply ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE circuit are not defective before you connect the AC plug to the AC power supply.
  • Page 33 IR Sensor CBA Top View IR Sensor CBA Bottom View 7-15 7-16 BL0110G04011-2...

  • Page 34: Waveforms

    WAVEFORMS WAVEFORM NOTES INPUT: NTSC COLOR BAR SIGNAL (WITH 1kHz AUDIO SIGNAL) BRIGHTNESS, COLOR AND TINT CONTROLS: CENTER POSITION CONTRAST CONTROL: APPROX 70% VOLTAGES SHOWN ARE RANGE OF OSCILLOSCOPE SETTING. UPPER Q261 emitter R707 Pin 39 of CN451A Pin 35 of CN451A LOWER R116 CVBS...

  • Page 35: Wiring Diagram

    WIRING DIAGRAM S-VIDEO VIDEO-Y VIDEO-Cb VIDEO-Cr VIDEO AUDIO(L) AUDIO(R) AUDIO(L) AUDIO(R) OUT IN LCD01 (LCD PANEL) CN451A P-ON+5V CN191A CN191B P-ON+5V IR SENSOR CBA DR(0) REMOTE (BL0110G04011-2) DR(1) POWER-LED DR(2) BACKUP+5V DR(3) DR(4) DR(5) DR(6) DR(7) DG(0) DG(1) CN151A (NO CONNECTION) DG(2) 1 NU DG(3)

  • Page 36: Ic Pin Function

    IC PIN FUNCTIONS IC111(TV Micro Computer) Signal Name Function Signal Name Function CROMA-APC- Crominance APC Filter FILTER 35 X’TAL 14.31818MHz Crystal FILT FILT 36 NU Not Used 37 AFC-FILT Horizontal AFC Filter P-ON-H Output for P-ON-H 38 NU Not Used S-SW S-VHS Input Detection 39 HVCO-F/B...
  • Page 37 Signal Name Function Signal Name Function White Balance Adjustment 16 AVSSA ADC Analogue GND 65 I2C-OPEN Judgement 17 VIN2A ADC Analogue Input 2 66 VOLUME Volume PWM Output 18 VRTA ADC VRT Terminal 67 PMM1 PMM1 19 VIN3A ADC Analogue Input 3 68 B/L-ADJUST Back Light Adjustment 20 VRMA...
  • Page 38 Signal Name Function Signal Name Function Setting Micro controller Serial 83 NU Not Used 48 SSEL Mode (IIC=1, 4 Line Serial=0) 84 NU Not Used E2PROM/CHROMA IC Tuner 85 NU Not Used 49 SDA Communication Data 86 NU Not Used Micro controller Control 50 ACK 87 VDD1B...
  • Page 39 Signal Name Function Signal Name Function 122 H-SYNC H-SYNC Input 159 NU Not Used 123 V-SYNC V-SYNC Input 160 NU Not Used 124 RST System Reset 161 NU Not Used 125 OSD-R External OSD Data Input (R) 162 NU Not Used 126 OSD-R External OSD Data Input (R) 163 NU...
  • Page 40 EXPLODED VIEWS Cabinet [ SRTL315 ] SP801 CLN801 LCD01 MAIN CBA IR Sensor CBA INV01 SP802 CLN802 See Electrical Parts List for parts with this mark. 11-1 11-2 L0110CEX...
  • Page 41 [ SRTL313 ] SP801 CLN801 LCD01 MAIN CBA IR Sensor CBA SP802 INV01 CLN802 See Electrical Parts List for parts with this mark. 11-3 11-4 L0130CEX...
  • Page 42 Packing [ SRTL315 ] Some Ref. Numbers are not in sequence. TAPE TAPE PACKING TAPE PACKING TAPE 11-5 L0110PEX...
  • Page 43 [ SRTL313 ] Some Ref. Numbers are not in sequence. TAPE TAPE PACKING TAPE PACKING TAPE 11-6 L0130PEX...

  • Page 44: Mechanical Parts List

    MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Mark Description Part No. # have special characteristics important to safety. P-TIGHT SCREW 4X14 PAN + or Before replacing any of these components, read care- P-TIGHT SCREW 4X14 PAN + fully the product safety notice in this service manual.

  • Page 45: Electrical Parts List

    ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. C131 CHIP CERAMIC CAP. CH J 220pF/50V Before replacing any of these components, read care- C132 CHIP CERAMIC CAP. CH J 220pF/50V fully the product safety notice in this service manual.
  • Page 46 Ref. No. Description Part No. Ref. No. Description Part No. C291 CHIP CERAMIC CAP. B K 0.01µF/50V C451 ELECTROLYTIC CAP. 47µF/10V M H7 C292 CHIP ELECTROLYTIC CAP. 10µF/50V or C452 CHIP CERAMIC CAP. F Z 0.1µF/25V CHIP ELECTROLYTIC CAP. 10µF/50V WX C455 ELECTROLYTIC CAP.
  • Page 47 Ref. No. Description Part No. Ref. No. Description Part No. C651 CHIP CERAMIC CAP. B K 0.01µF/50V C781 CHIP CERAMIC CAP. B K 5600pF/50V C652 ELECTROLYTIC CAP. 220µF/10V M H7 C782 CHIP CERAMIC CAP. B K 0.01µF/50V C653 CHIP CERAMIC CAP. F Z 0.1µF/50V C783 ELECTROLYTIC CAP.
  • Page 48 Ref. No. Description Part No. Ref. No. Description Part No. D622 ZENER DIODE MTZJT-775.6B or D695 SWITCHING DIODE 1SS133(T-77) or ZENER DIODE DZ-5.6BSBT265 SWITCHING DIODE 1N4148 D623 SWITCHING DIODE 1SS133(T-77) or D696 SWITCHING DIODE 1SS133(T-77) or SWITCHING DIODE 1N4148 SWITCHING DIODE 1N4148 D624 SWITCHING DIODE 1SS133(T-77) or D751...
  • Page 49 Ref. No. Description Part No. Ref. No. Description Part No. L559 INDUCTOR 2.2µH-K-5FT or TRANSISTOR KTC3198(GR) or INDUCTOR 2.2µH-K-5FT TRANSISTOR 2SC1815-GR(TPE2) L560 INDUCTOR 10µH-K-5FT or Q611 TRANSISTOR 2SC2785(F) or INDUCTOR 10µH-K-5FT TRANSISTOR 2SC2785(H) or CHIP RES.(1608) 1/10W 0 Ω L561 TRANSISTOR 2SC2785(J) or L601 POWER INDUCTER RCR1616-101K...
  • Page 50 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES.(1608) 1/10W J 10k Ω Q701 TRANSISTOR 2SC4081 T106 Q R148 CHIP RES.(1608) 1/10W J 22k Ω Q731 TRANSISTOR 2SC4081 T106 Q R149 CHIP RES.(1608) 1/10W J 6.8k Ω Q741 TRANSISTOR 2SC4081 T106 Q R150...
  • Page 51 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES. 1/16W G 180 Ω or CHIP RES.(1608) 1/10W J 39 Ω R284 R478 CHIP RES. 1/10W F 180 Ω or CHIP RES.(1608) 1/10W J 3.3k Ω R491 CHIP RES.(1608) 1/10W F 180 Ω CHIP RES.(1608) 1/10W J 6.8k Ω...
  • Page 52 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES.(1608) 1/10W F 1.5k Ω CHIP RES.(1608) 1/10W J 10k Ω R729 CHIP RES.(1608) 1/10W J 100 Ω CHIP RES.(1608) 1/10W J 75 Ω R651 R731 CHIP RES.(1608) 1/10W J 5.6k Ω CHIP RES.(1608) 1/10W J 100 Ω...
  • Page 53 Ref. No. Description Part No. Ref. No. Description Part No. METAL OXIDE FILM RES. 2W J 4.7 Ω or CHIP RES.(1608) 1/10W 0 Ω R821 CF333 METAL OXIDE FILM RES. 2W J 4.7 Ω CHIP RES.(1608) 1/10W 0 Ω CF551 CHIP RES.(1608) 1/10W J 10k Ω...
  • Page 54 Printed in Japan 2003-07-22 HO...

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