Service Manual
Page 3
... resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from electrical shocks. Keep wires away from AC source, connect an electrical jumper across the resistor using AC voltmeter with the specified. When the exposed metal has no return path to the chassis the...always be checked and repaired before the receiver is required to the customer, always perform an AC leakage current check on position, connect one lead of a receiver whose chassis is corresponds to the customer. SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in...
... resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from electrical shocks. Keep wires away from AC source, connect an electrical jumper across the resistor using AC voltmeter with the specified. When the exposed metal has no return path to the chassis the...always be checked and repaired before the receiver is required to the customer, always perform an AC leakage current check on position, connect one lead of a receiver whose chassis is corresponds to the customer. SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in...
Service Manual
Page 4
...by volume) Acetone and 90% (by volume) isopropyl alcohol (90%-99% strength) CAUTION: This is applied to any other electrical connection. Use the following soldering technique. CAUTION: Work quickly to solder or unsolder ES devices. 4. SERVICING PRECAUTIONS CAUTION: Before servicing receivers ...covered by static electricity. 1. CAUTION: Do not connect the test fixture ground strap to the chassis or circuit, and observe all solid-state device heat sinks are correctly installed....
...by volume) Acetone and 90% (by volume) isopropyl alcohol (90%-99% strength) CAUTION: This is applied to any other electrical connection. Use the following soldering technique. CAUTION: Work quickly to solder or unsolder ES devices. 4. SERVICING PRECAUTIONS CAUTION: Before servicing receivers ...covered by static electricity. 1. CAUTION: Do not connect the test fixture ground strap to the chassis or circuit, and observe all solid-state device heat sinks are correctly installed....
Service Manual
Page 5
...the end of the remaining copper pattern. 3. Insert new transistor in the circuit board. 2. Diode Removal/Replacement 1. Securely crimp each connection. Solder the connections. The following technique should be used ) from around notch at stake top. 3. Bend a small "U" in one end of ... necessary). 2. Carefully insert the replacement IC in the circuit board. 5. "Small-Signal" Discrete Transistor Removal/Replacement 1. At Other Connections Use the following procedure to the areas). Trace along the path of the out-away copper pattern and let it overlap the previously...
...the end of the remaining copper pattern. 3. Insert new transistor in the circuit board. 2. Diode Removal/Replacement 1. Securely crimp each connection. Solder the connections. The following technique should be used ) from around notch at stake top. 3. Bend a small "U" in one end of ... necessary). 2. Carefully insert the replacement IC in the circuit board. 5. "Small-Signal" Discrete Transistor Removal/Replacement 1. At Other Connections Use the following procedure to the areas). Trace along the path of the out-away copper pattern and let it overlap the previously...
Service Manual
Page 11
... Video Auto Gain/Offset Adjustment 1) Heat Run after 30 minutes execution of auto-gain. 2.2 EDID (The Extended Display Identification Data) setting 1) Connect D-Sub to DVI-I Cable to DVI-I Jack. 2) Input analog signal and check pc video in the screen. 6) After appearing the pc video... INSTRUCTION 1. Adjustment 2.1 PC Auto Gain/Offset adjustment 2.1.1 Adjustment preparation 1) Heat Run after 30 minutes execution of white pattern 2) Pattern generator is connected to the DVI Jack of LCD TV. 3) To use Pattern Generator(801GF, VG819) the resolution is XGA(1024 X 768), this pattern gives ...
... Video Auto Gain/Offset Adjustment 1) Heat Run after 30 minutes execution of auto-gain. 2.2 EDID (The Extended Display Identification Data) setting 1) Connect D-Sub to DVI-I Cable to DVI-I Jack. 2) Input analog signal and check pc video in the screen. 6) After appearing the pc video... INSTRUCTION 1. Adjustment 2.1 PC Auto Gain/Offset adjustment 2.1.1 Adjustment preparation 1) Heat Run after 30 minutes execution of white pattern 2) Pattern generator is connected to the DVI Jack of LCD TV. 3) To use Pattern Generator(801GF, VG819) the resolution is XGA(1024 X 768), this pattern gives ...
Service Manual
Page 14
... 300-3FF 2) Edit Week of Manufacture, Year of Manufacture, Serial Number a) Input User Info Data b) Click "Update" button c) Click " Write" button e) Click Start button. Cable Connection - 14 - f) Click Exit button. S-VIDEO Y COMPONENT DVD IN(480i/576i) PB PR L AUDIO R Video Signal Generator Control Line PARALLEL Not used RS232C C VGS A MONITOR B V-SYNC...
... 300-3FF 2) Edit Week of Manufacture, Year of Manufacture, Serial Number a) Input User Info Data b) Click "Update" button c) Click " Write" button e) Click Start button. Cable Connection - 14 - f) Click Exit button. S-VIDEO Y COMPONENT DVD IN(480i/576i) PB PR L AUDIO R Video Signal Generator Control Line PARALLEL Not used RS232C C VGS A MONITOR B V-SYNC...
Service Manual
Page 3
...exposed metallic part. When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from AC source, connect an electrical jumper across the resistor using AC voltmeter with a 0.15uF capacitor between 1MΩ and 5.2MΩ. Reverse plug the AC cord...to the chassis, the measured resistance should be between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Connect 1.5K/10watt resistor in the on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be checked and repaired ...
...exposed metallic part. When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from AC source, connect an electrical jumper across the resistor using AC voltmeter with a 0.15uF capacitor between 1MΩ and 5.2MΩ. Reverse plug the AC cord...to the chassis, the measured resistance should be between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Connect 1.5K/10watt resistor in the on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be checked and repaired ...
Service Manual
Page 4
...-bristle brush. -4- General Servicing Precautions 1. Removing or reinstalling any component, circuit board module or any other electrical connection. c. Always connect the test receiver ground lead to 600 F) b. Such components commonly are integrated circuits and some field-effect transistors and... ES devices. 5. c. a. Closely inspect the solder area and remove any of the safety precautions on cleaners. 5. Connecting a test substitute in parallel with an electrolytic capacitor in this service manual, clean electrical contacts only by applying the following...
...-bristle brush. -4- General Servicing Precautions 1. Removing or reinstalling any component, circuit board module or any other electrical connection. c. Always connect the test receiver ground lead to 600 F) b. Such components commonly are integrated circuits and some field-effect transistors and... ES devices. 5. c. a. Closely inspect the solder area and remove any of the safety precautions on cleaners. 5. Connecting a test substitute in parallel with an electrolytic capacitor in this service manual, clean electrical contacts only by applying the following...
Service Manual
Page 5
...pattern break and locate the nearest component that is not necessary to reapply acrylic coating to metal contact then solder each of each connection. Remove the defective copper pattern with solder braid) before removing the IC. Removal 1. Replacement 1. Bend into a "U" shape ...around the transistor leads. 2. Bend into a "U" shape the replacement transistor leads. 4. Power Output, Transistor Device Removal/Replacement 1. Solder each connection and solder it . 3. Replace heat sink. Remove defective diode by gently prying up on the other than IC Pins. Securely crimp each ...
...pattern break and locate the nearest component that is not necessary to reapply acrylic coating to metal contact then solder each of each connection. Remove the defective copper pattern with solder braid) before removing the IC. Removal 1. Replacement 1. Bend into a "U" shape ...around the transistor leads. 2. Bend into a "U" shape the replacement transistor leads. 4. Power Output, Transistor Device Removal/Replacement 1. Solder each connection and solder it . 3. Replace heat sink. Remove defective diode by gently prying up on the other than IC Pins. Securely crimp each ...
Service Manual
Page 11
... to all of the ML-051B chassis (TORNADO) manufactured at the same time. - However, the use an isolation transformer. Model Name(Hex) : Model Name RZ-37LZ55 RT-37LZ55 RM-37LZ55 Model Name(HEX) 525A2D33374C5A3535 52542D33374C5A3535 524D2D33374C5A3535 e. Use the proper signal cable for 30 minutes at 25±5°C temperature and...must be kept between 100~220V, 50/60Hz. 2.5 Before adjustment, execute Heat-Run for EDID Download Analog EDID: Pin3 exists Caution: - Never connect HDMI & DVI-D & DVI-A Cable at LG TV Plant 00 10 20 30 40 50 60 70 00 02 09 00 00 8E 00 2C 00 01 03 07 01...
... to all of the ML-051B chassis (TORNADO) manufactured at the same time. - However, the use an isolation transformer. Model Name(Hex) : Model Name RZ-37LZ55 RT-37LZ55 RM-37LZ55 Model Name(HEX) 525A2D33374C5A3535 52542D33374C5A3535 524D2D33374C5A3535 e. Use the proper signal cable for 30 minutes at 25±5°C temperature and...must be kept between 100~220V, 50/60Hz. 2.5 Before adjustment, execute Heat-Run for EDID Download Analog EDID: Pin3 exists Caution: - Never connect HDMI & DVI-D & DVI-A Cable at LG TV Plant 00 10 20 30 40 50 60 70 00 02 09 00 00 8E 00 2C 00 01 03 07 01...
Service Manual
Page 17
No CHECK IC302 OR CHANGE Yes DOES IC301 OPERATE? No CHECK IC301 OR CHANGE Yes DOES IC300 OPERATE? No CHECK X300 OR CHANGE Yes DOES IC400 OPERATE? No CHECK X400 OR CHANGE Yes REPLACE JACK BOARD - 17 - NO SOUND IS THE SPK CABLE CONNECTED WELL? No INSERT CABLES WELL Yes DOES IC302 OPERATE?
No CHECK IC302 OR CHANGE Yes DOES IC301 OPERATE? No CHECK IC301 OR CHANGE Yes DOES IC300 OPERATE? No CHECK X300 OR CHANGE Yes DOES IC400 OPERATE? No CHECK X400 OR CHANGE Yes REPLACE JACK BOARD - 17 - NO SOUND IS THE SPK CABLE CONNECTED WELL? No INSERT CABLES WELL Yes DOES IC302 OPERATE?