Brand: MITSUBISHI ELECTRIC
Category: TV
Document Type: Manual
Language: EN
Manual for LT-3280D/LT-3780D
Uploaded: Nov. 21, 2025, 7:53 p.m.
Service Manual
Table of Contents
PRODUCT SAFETY NOTICE & SAFETY PRECAUTIONS - Page 5
DISASSEMBLY - Page 7
- Disassembly & Panel Replacement
- LT-3280 Wire Dressing
- LT-3780 Wire Dressing
ELECTRICAL ADJUSTMENTS - Page 25
- Initial Setup
CIRCUIT EXPLANATIONS & BLOCK DIAGRAMS - Page 27
- Circuit Explanations
- Block Diagrams
TROUBLESHOOTING - Page 35
- Power Troubleshooting
- Video Troubleshooting
- Audio Troubleshooting
- Remote Control Troubleshooting
- Front Switch Troubleshooting
REPLACEMENT PARTS - Page 44
- LT-3280 Replacement Parts List
- LT-3780 Replacement Parts List
SCHEMATICS
Troubleshooting and error codes
| TROUBLESHOOTING | Page |
|---|---|
| Power Troubleshooting | 35 |
| Video Troubleshooting | 38 |
| Audio Troubleshooting | 40 |
| Remote Control Troubleshooting | 42 |
| Front Switch Troubleshooting | 43 |