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 L3314SP SPECIFICATIONS < TUNER > ANT. Input ---------------------- 75 ohm Unbal., F typeReference Level --------------- 20 Vp-p (CRT Green Cathode)Test Input Signal -------------- 400 Hz 30% modulation < DEFLECTION > < VIDEO & CHROMA > < AUDIO > All items are measured...
Page 4 - IMPORTANT SAFETY PRECAUTIONS; Safety Precautions for TV Circuit
2-1 TVN_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 f...
Page 6 - Precautions during Servicing
2-3 TVN_ISP 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. Precautions during Servicing A. Par ts identified by the # symbol are critical for safety.Replace onl...
Page 7 - Safety Check after Servicing; Clearance Distance
2-4 TVN_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 complian...
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 L3314DC 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
4-3 L3314DC TV Cable Wiring Diagram ANODE FLYBACK TRANSFORMER T571 AC601AC CORD CN801 CLN801 SP801 CLN802 SP802 CN802 CN691 MAIN CBA DG691 DEGAUSSING COIL TU11TUNER WH301A WH501A CN571 JK1501 WH501B WH301B TO CRT GROUND CN1501 FOCUS SCREEN Fig. D5
Page 15 - ELECTRICAL ADJUSTMENT INSTRUCTIONS; Test Equipment Required
5-1 L3314EA 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 19 - White Balance Adjustment
5-5 L3314EA 12. Cut-off Adjustment Purpose: To adjust the beam current of R, G, B, and screen voltage. Symptom of Misadjustment: White color may be reddish, greenish or bluish. Note: Screen Control FBT --- Main CBA FBT = Fly Back TransformerUse service remote control unit 1. Degauss the CRT and allo...
Page 20 - Purity Adjustment
5-6 L3314EA 6. Press [4] button on the service remote control unit for Red adjustment. Press [5] button on the service remote control unit for Blue adjustment. 7. In each color mode, Press [CH o / p ] buttons to adjust the values of color. 8. Adjusting Red and Blue color so that the temperature beco...
Page 21 - Convergence Adjustment
5-7 L3314EA 3. Fully degauss the unit using an external degaussing coil. 4. Loosen the screw on the Deflection Yoke Clamper and pull the Deflection Yoke back away from the screen. (See Fig. 6) 5. Loosen the Ring Lock and adjust the Purity Magnets so that a red field is obtained at the center of the ...
Page 22 - HOW TO INITIALIZE THE TELEVISION
6-1 L3300INT HOW TO INITIALIZE THE TELEVISION To put the program back at the factory-default, initialize the television as the following procedure. 1. Use the service remote control unit. 2. Turn the power on. (Use main power on the TV unit.) 3. Press [SLEEP] button on the service remote control uni...
Page 23 - BLOCK DIAGRAMS; System Control Block Diagram
7-1 BLOCK DIAGRAMS System Control Block Diagram L3314BLS 58 73 75 63 62 80 56 SCL AFT -IN AG C AFT -IN AG C INPUT0 INPUT1 PR O TECT -2 PR O TECT -1 PR O TECT -3 P-ON-H SD A REMO TE SENSOR KEY SWITCH 74 28 18 40 DG-ON-H +5V -CTRL +5V -CTRL2 +8V -CTRL DG-ON-H +5V -CTRL +5V -CTRL2 +8V -CTRL TO PO WER S...
Page 24 - IF/Video Block Diagram
7-2 L3314BLIF IF/Video Block Diagram 58 16 56 32 30 SCL CF32 AG C SD A S-SW TO CR T/H.V . BLOCK WH301A TO CR T/H.V . BLOCK WH301B BLUE5 GREEN4 RED3 IC31 (IF SIGNAL PR OCESS) CHR OMINANCE PR OCESS CIRCUIT LUMINANCE PR OCESS CIRCUIT CHR OMA COMB /BASEBAND TINT H-SYNC PR OCESS CIRCUIT V -SYNC PR OCESS ...
Page 25 - Audio Block Diagram
7-3 Audio Block Diagram L3314BLA MAIN CB A A U DIO SIGNAL A-MUTE V OLUME TO SYSTEM CONTR OL BLOCK INPUT0 INPUT1 SCL SD A IC771 (INPUT SELECT) SW CTL 13 3 11 15 12 4 2 1 9 10 VCA STEREO FIL TER 75uS DE-EMPH dBX DE-EMPH L+R FIL TER WIDE BAND FIL TER WIDE BAND RMS DET WIDE BAND EXP AND SPECTRAL EXP AND...
Page 28 - SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS; Standard Notes; Tolerance of Capacitors are noted with the following:; CBA Symbols
8-1 L15N_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 29 - Voltage indications on the schematics are as shown below:; How to read converged lines
8-2 L15N_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 30 - Main 1/4 Schematic Diagram
Page 31 - Main 2/4 Schematic Diagram
Page 32 - Main 3/4 Schematic Diagram
8-5 Main 3/4 Schematic Diagram L3314SCM3 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 34 - Main CBA Top View
8-7 FOCUS-VR(UPPER SIDE) SCREEN-VR(LOWER SIDE) VR661 +B ADJ +B TP601 TP300 G N D BL3700F01013-1 Main CBA Top View Because a hot chassis ground is present in the powersupply circuit, an isolation transformer must be used.Also, in order to have the ability to increase the inputslowly,when troubleshoot...
Page 35 - Main CBA Bottom View
8-8 Q571Base WF8 PIN 4OF CN571 WF12 WF9 PIN 1OF CN571 PIN 3OF WH501A WF10 PIN 7OF IC551 WF11 Q572Collector WF7 WF1 PIN 26OF IC111 WF2 PIN 14OF IC111 PIN 5OF TU11 WF16 WF6 PIN 3OF IC801 Main CBA Bottom View BL3700F01013-1 Because a hot chassis ground is present in the powersupply circuit, an isolatio...
Page 37 - WAVEFORMS
WAVEFORMS L15WF 9-1 1DIV: 0.5V 20 µ s IC 111 Pin 26 WF1 GND 1DIV: 0.5V 20 µ s IC 111 Pin 14 WF2 1DIV: 2V 20 µ s Q1511 Base WF3 GND 1DIV: 2V 20 µ s Q 1521 Base WF4 GND Input: NTSC Color Bar Signal (with 1kHz Audio Signal) INITIAL POSITION: Unplug unit from AC outlet for at least 5 minutes. reconnect ...
Page 39 - WIRING DIAGRAM
WIRING DIAGRAM L3314WI 10-1 CRT CBA FOCUS SCREEN GND D.Y. DY551 HD VD MAIN CBA WH301A CN1501 1 2 CN691 CLN501 CLN301 AC601 1 2 3 4 5 1 2 3 4 5 CN571 5 4 3 2 1 WH301B GND RED GREEN BLUE V501 CRT ANODE L-CH R-CH 1 SP-L 2 SP801SPEAKER CN801 1 SP-R 2 SP802SPEAKER CN802 T571FBT TU11 TUNER UNIT WH501A WH5...
Page 40 - IC PIN FUNCTION DESCRIPTIONS
11-1 L3300PIN IC PIN FUNCTION DESCRIPTIONS IC111 (TV Micro Controller) Pin No. Signal Name Function 1 CNVSS GND 2 NU Not Used 3 NU Not Used 4 NU Not Used 5 GND GND 6 VCC ALL +5V 7 NU (GND) 8 FILT Filter 9 HLF Horizontal Filter 10 VHOLD Ver tical Hold 11 CVIN Composite Video Signal Input 12 RESET Res...
Page 42 - EXPLODED VIEWS; Cabinet
12-1 L3314CEX EXPLODED VIEWS Cabinet A-3 A-1 B-5 B-5 B-2 B-2 L-8 L-8 L-8 L-9 L-10 L-8 L-8 L-8 L-8 B-5 B-5 B-2 B-2 B-11 B-11 B-1 SP801 SP802 L-13 L-13 A-4 A-2 L1 L1 B2 Scotch Tape #880 Scotch Tape #880 V501 CLN551 DG691 DY551 CRT CBA MAIN CBA AC601 B-3 B-6 B-6 PB6 PB6 PB4 V501-2 V501-1 DY551 Details ...
Page 43 - Packing
12-2 L3314PEX Packing S-5 S-1 Tape X-5 X-2 X-1 FR ONT X-3 S-2 S-3 S-6 S-4 Packing tape
Page 44 - MECHANICAL PARTS LIST
20060322 13-1 L3314CA 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 45 - ELECTRICAL PARTS LIST; MMA CBA; MAIN CBA
20060322 14-1 L3314EL 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...
