LG 60PN5000 Service Manual

The LG 60PN5000 is a 60-inch Plasma TV featuring HD resolution, built-in digital/analog tuner, multiple HDMI inputs, USB connectivity, component video inputs, composite AV inputs, Ethernet port, RS-232C control, built-in speakers, remote control, energy saving modes, picture/audio adjustments, and various smart features. Powered by 120V AC, 60Hz. Below are key sections for technical specifications, disassembly procedures, troubleshooting, parts list, wiring diagrams, and service adjustments.

1. Technical Specifications 2. Safety Precautions 3. Disassembly Procedures 4. Main Board Overview 5. Power Supply Board 6. Panel Components 7. Troubleshooting Guide 8. Wiring Diagrams 9. Parts List 10. Firmware Update 11. Service Adjustments

Technical Specifications

Key technical parameters and specifications for the LG 60PN5000 Plasma TV.

SpecificationDetails
Display Type60-inch Plasma Panel
Resolution1366 x 768 HD
TunerATSC/NTSC/QAM Built-in
Inputs3x HDMI, 2x USB, Component, Composite, PC Input
Power Consumption350W (typical), 0.5W (standby)
Power SupplySMPS 120V AC, 60Hz
Operating Temperature41°F to 104°F (5°C to 40°C)
Storage Temperature-4°F to 140°F (-20°C to 60°C)
Dimensions56.7" x 34.6" x 3.5" (with stand)
Weight75.6 lbs (34.3 kg) with stand

Safety Precautions

Critical safety information for service technicians.

  1. Disconnect AC power before servicing - high voltages present.
  2. Use proper grounding wrist strap when handling boards.
  3. Plasma panels contain hazardous materials - handle with care.
  4. Allow sufficient cooling time before handling components.
  5. Use only specified replacement parts.

WARNING! High voltage capacitors can retain dangerous charges even after power is disconnected. Always discharge properly before servicing.

Disassembly Procedures

Step-by-step disassembly instructions for service access.

  1. Remove stand: Lay TV face down on soft surface, remove screws securing stand.
  2. Remove rear cover: Remove all screws from rear cabinet, carefully separate cover.
  3. Access main boards: Remove shield covers to expose main board, power supply, and control boards.
  4. Disconnect cables: Note cable positions before disconnecting ribbon cables and connectors.
  5. Remove panel: Special procedure for plasma panel removal - refer to detailed section.

CAUTION! Plasma panel is fragile and expensive - handle with extreme care during disassembly.

Main Board Overview

Main board components and functions.

Power Supply Board

Power supply specifications and troubleshooting.

Output Voltages: Va: 55V, Vs: 195V, 5VSTBY, 12V, 16V, 3.3V

Key Components: Fuse F101 (6.3A), Bridge Rectifier BD101, Main Capacitor C101 (450V/390uF), PWM Controller IC201

Common Issues: No power, blinking standby LED, no Vs/Va voltages. Check fuse, bridge rectifier, and main capacitors first.

Panel Components

Plasma panel assembly and related components.

  1. Plasma Panel: 60-inch HD plasma display module
  2. Address Drivers: Control individual pixel addressing
  3. Scan Drivers: Manage row scanning sequence
  4. Sustain Boards: Generate sustain pulses for plasma cells
  5. Control Boards: Process video signals for panel driving
  6. Heat Sinks: Critical for thermal management

Tip: Always check thermal paste and heat sink contact when servicing sustain boards.

Troubleshooting Guide

Common symptoms and solutions for the LG 60PN5000.

SymptomPossible CauseCorrective Action
No power, no LEDPower supply failureCheck fuse F101, bridge rectifier BD101, main capacitor C101
Red standby LED, no pictureMain board failureCheck 3.3V/5V standby voltages, replace main board if needed
Picture but no soundAudio section failureCheck audio IC, speakers, audio output stages
Intermittent shutdownOverheating protectionClean vents, check fans, verify thermal sensors
HDMI ports not workingHDMI controller issueUpdate firmware, check HDMI IC, replace main board

Reset Procedure: Hold power button on TV for 10 seconds, unplug for 2 minutes, then restart.

Wiring Diagrams

Complete wiring schematics and connector pinouts.

Main Board Connectors: CN201 (Power), CN202 (Panel), CN203 (Tuner), CN204 (HDMI), CN205 (USB)

Power Board Connectors: P201 (AC Input), P202 (Main Board), P203 (Sustain Boards), P204 (Control Boards)

Panel Interface: LVDS cable connections, sustain board ribbon cables, address driver flex cables

Parts List

Replacement parts and component specifications.

Firmware Update

Firmware update procedures and files.

  1. Download latest firmware from LG service website
  2. Format USB drive to FAT32, extract firmware files to root directory
  3. Insert USB drive into service USB port (usually marked)
  4. Enter service menu: Hold MENU button on TV, press 1-1-1-1
  5. Select firmware update option and follow on-screen instructions
  6. Do not interrupt power during update process

WARNING! Incorrect firmware can permanently damage TV. Use only official LG firmware files.

Service Adjustments

Factory service adjustments and calibrations.

Service Menu Access: Hold MENU button on TV, then press 1-1-1-1 (remote not required)

Key Adjustments: Vs/Va voltages, YUV offsets, white balance, gamma correction, panel aging reset

Calibration Settings: Use professional calibration tools for color, brightness, and contrast adjustments

Reset to Factory: Service Menu > Option > Factory Reset (erases all settings)

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