Related Manuals for Panasonic TH-42LFE6W
Summary of Contents for Panasonic TH-42LFE6W
- Page 1 ORDER NO.ITD1308048CE FULL HD LCD Display TH-42LFE6W Model No. LA45 Chassis © Panasonic Corporation 2013 Unauthorized copying and distribution is a violation of law.
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Page 2: Table Of Contents
TH-42LFE6W TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions -----------------------------------------------3 1.1. General Guidelines ----------------------------------------3 1.2. Touch-Current Check--------------------------------------3 2 Warning --------------------------------------------------------------4 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices ----------4 2.2. About lead free solder (PbF) ----------------------------5 3 Service Navigation------------------------------------------------6 3.1. -
Page 3: Safety Precautions
TH-42LFE6W 1 Safety Precautions 1.1. General Guidelines 1. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials. 2. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the wires have been broken or disconnected, do not attempt to repair or re-wire the units. -
Page 4: Warning
TH-42LFE6W 2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi- tive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip”... -
Page 5: About Lead Free Solder (Pbf)
TH-42LFE6W 2.2. About lead free solder (PbF) Note: Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder. The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu). -
Page 6: Service Navigation
TH-42LFE6W 3 Service Navigation 3.1. Service Hint Board Name Function P-Board Power supply Non serviceable. P-Board should be exchanged for service. A-Board Digital core signal processor Non serviceable. A-Board should be exchanged for service. GK-Board Switch Non serviceable. GK-Board should be exchanged for service. -
Page 7: Applicable Signals
TH-42LFE6W 3.2. Applicable signals... -
Page 8: Specifications
TH-42LFE6W 4 Specifications Power Source 220-240 V AC, 50/60Hz Power Consumption Rated Power Consumption 65 W Stand-by condition 0.5 W Power off condition 0.5 W Sound 22 mm × 90 mm × 2 pcs Speakers Audio Output 10 W [5 W + 5 W] (10 % THD) -
Page 9: Service Mode
TH-42LFE6W 5 Service Mode 5.1. CAT (Computer Aided Test) mode How to access the CAT mode. Method A Main unit + remote control operation Press and hold the button on the right side of the unit and press the RECALL button on the remote control 3 times quickly within 2 second, this will place the unit into the CAT mode. - Page 10 TH-42LFE6W 5.1.2. CD mode Select the CD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Mute button on the remote control more than 3 seconds. Memory data change To exit the CD mode, press the R button on the remote control.
- Page 11 TH-42LFE6W 5.1.3. SD mode Select the SD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button on the remote control. To exit the SD mode, press the R button on the remote control.
- Page 12 TH-42LFE6W 5.1.5. NW mode Note : To use the network function, set each "Network Setup" setting and make sure to set the "Control I/F Select" to "LAN". Select the NW mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button on the remote control.
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Page 13: Iic Mode Structure (Following Items Value Is Sample Data)
TH-42LFE6W 5.2. IIC mode structure (following items value is sample data) -
Page 14: Troubleshooting Guide
TH-42LFE6W 6 Troubleshooting Guide 6.1. Self Check 6.1.1. Display Indication 1. Self-check is used to automatically check the bus line controlled circuit of the LCD display. 2. To get into the Self-check mode, press the volume down button on the right side of the unit, at the same time pressing the OFF-TIMER button on the remote control, and the screen will show. - Page 15 TH-42LFE6W 6.1.3. LCD Panel test mode The failure-diagnosis by LCD Panel test mode To find the possible failure point where in LCD Panel or Printed Circuit Board when the abnormal picture is displayed. [How to display the test pattern] (A) Main unit + remote control operation 1.
- Page 16 TH-42LFE6W [Diagnostic flow chart] It displays. Is a test pattern Failure of A-Board displayed normally? It is still abnormal. It is abnormal. Failure of LCD Panel Is a part abnormal (rarely failure of A-Board or FR-Board) even in a test pattern?
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Page 17: No Power
TH-42LFE6W 6.2. No Power First check point There are following 3 states of No Power indication by power LED. 1. No lit. 2. Green is lit then turns red blinking a few seconds later. 3. Only red is lit. 6.3. -
Page 18: Disassembly And Assembly Instructions
TH-42LFE6W 7 Disassembly and Assembly Instructions 7.1. PCB Layout 7.2. Preparation 7.3. About disassembly replacement Please pull soft cloth etc. not to damage a screen and please turn the front of a main part down and lay it down Cautions when replacing each component •... -
Page 19: Back Cover Removal
TH-42LFE6W 7.4. Back Cover removal 7.5. A-Board replacement 1. Remove the screws, and then remove the Back Cover. 1. Disconnect the connectors and remove the screws. Caution when attaching the Back Cover • Please tighten 4 screws fixing Back Cover of the following figure, pressing down the dotted line part (A, B) of a rear panel in the direction of an arrow. -
Page 20: P-Board Replacement
TH-42LFE6W Caution when replacing the A-Board Caution after replacing the A-Board • Gaskets are enclosed in the A-Board for repaire. Please • Since the electronic switch is adopted as a power switch stick the gaskets on the position of the following figure of main unit, how the rise of the power of the initial state when replacing the A-Board. -
Page 21: Gk-Board And Key Button Bracket Replacement
TH-42LFE6W Caution when replacing the P-Board Cautions when removing/attaching the GK-Board • A Heat Rubber is attached between the P-Board and • When removing the GK-Board from the Key Button Barrier P PCB LCD. Bracket, please remove it carefully to five hooks. -
Page 22: K-Board, Led Panel And Led Panel Case Replacement
TH-42LFE6W 7.9. K-Board, LED Panel and LED 7.11. Rear Panel Top/L/R Assy Panel Case replacement replacement 1. Disconnect the connector, and remove the K-Board, LED 1. Remove the Speaker Unit L/R. Panel and LED Panel Case. (Refer to “7.8. Speaker Unit L/R replacement”) 2. -
Page 23: Rear Panel Metal Bot L/R Replacement
TH-42LFE6W Caution when attaching the Rear Panel Top/L/R Assy Caution when attaching the Rear Panel Metal Bot L/R • As shown in the following figure, please insert the part of • Please check that the hooks (positioning) of metals are A correctly. -
Page 24: Rear Panel Metal Top/L/R Replacement
TH-42LFE6W 7.14. Rear Panel Metal Top/L/R 7.15. LCD Panel replacement replacement Caution about the sticking parts of LCD Panel • The sticking parts for LCD Panel are enclosed. 1. Remove the Speaker Unit L/R. When replacing the LCD Panel, please replace the sticking (Refer to “7.8. - Page 25 TH-42LFE6W Caution when replacing the LCD Panel • Please stick the Model Name Sheet on the position of the following figure when replacing the LCD Panel. About the wire arrangement after replacing the LCD Panel • Please refer to the “Wiring Connection Diagram”.
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Page 26: Caution About The Sticking Parts Of Lcd Panel
TH-42LFE6W 7.16. Caution about the sticking parts of LCD Panel • Please remove the Barrier P PCB from the old LCD Panel and stick it on the new LCD Panel for repair. • Please stick the tapes according to the sticking position of the LCD Panel for repair after connecting the LVDS FFC. - Page 27 TH-42LFE6W...
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Page 29: Block Diagram
TH-42LFE6W 8 Block Diagram 8.1. Diagram Notes... -
Page 30: Main Block Diagram
TH-42LFE6W 8.2. Main Block Diagram DIGITAL CORE SIGNAL PROCESSOR SOUND15V MAIN CPU SERIAL AUDIO SIGNAL SPEAKER(R) AUDIO SPEAKER(L) LAN DATA SOS DET CONTROL D3.3V +3.3V LAN TERMINAL D1.2V +1.2V MII DATA R+/- LINE AMP L+/- LINE OUT NETWORK AUDIO LAN3.3V... -
Page 31: Block (1 Of 2) Diagram
TH-42LFE6W 8.3. Block (1 of 2) Diagram JK3505 JK3503 JK4002 JK4004 PC/DVI RS232C_IN AUDIO IN DVI-D IN HDMI IN1 DIGITAL SIGNAL PROCESSOR (SEIRIAL IN) NETWORK IC2701 IC2704 CONTROLER Q2706 RXD_LAN LAN CONTROL JK2701 TXD1 UART TXD_LAN DATA RXD1 LAN TERMINAL... -
Page 32: Block (2 Of 2) Diagram
TH-42LFE6W 8.4. Block (2 of 2) Diagram JK4001 DIGITAL SIGNAL PROCESSOR SOUND15V IC5202 SOUND15V IC5103 VGA_5V X4004 R(+) 19.6608MHz PWR15V +15V IC4702 SPEAKER_R R(-) IC4501 MAIN CPU AUDIO VGA_SCL SP_MUTE L(-) EEPROM VGA_SDA L(+) SERIAL AUDIO SIGNAL SPEAKER_L CLOCK GENARATION... -
Page 33: Wiring Connection Diagram
TH-42LFE6W 9 Wiring Connection Diagram 9.1. Wiring Connection Diagram...