Sony KDL-HX850 / HX853 / HX855 LED TV Service Manual – PDF
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Official Sony KDL-40HX850, KDL-46HX850, and KDL-55HX850 / HX853 / HX855 Service Manual (AZ3F Chassis). Covers full servicing, self-diagnostics, schematic diagrams, LED backlight testing, and board-level troubleshooting for AEP/UK/IT models. Includes safety checks, disassembly steps, parts list, and firmware diagnostic LED flash codes.
Description
Sony KDL-HX850 / HX853 / HX855 LED TV Service Manual Full Diagnostic & Repair Guide – PDF DOWNLOAD
Description
📘 Overview
This factory-issued Sony KDL-HX850 / HX853 / HX855 Service Manual provides complete maintenance and repair information for Sony’s premium AZ3F-chassis LED Smart TV series. It is an essential resource for technicians performing board-level repair, LED driver troubleshooting, power circuit service, or firmware diagnostics.
📑 Table of Contents
1. History & Model Information
• Model list: KDL-40HX850 / HX853 / HX855, KDL-46HX850 / HX853 / HX855, KDL-55HX850 / HX853 / HX855
• Destinations: AEP, UK, IT Versions
• Remote Commander: RM-ED047
• Chassis Type: AZ3F
2. Safety Information & Precautions
• Electrical shock prevention & isolation transformer use
• High-voltage CCFL/LED inverter precautions
• Safe handling of LCD and TENGO panels
• ESD grounding and panel cleaning instructions
3. Disassembly & Replacement Procedures
• Rear cover, stand, and panel removal
• LCD/TENGO panel replacement method (with packaging and repacking instructions)
• Reinforcing plate handling and protective bag procedures
• Cooling fan, inverter, and main board access
4. LCD Panel Handling Warnings
• Safe handling distances (≥200 mm from short side)
• Avoid bending, pressing, or scratching LCD glass
• Repacking instructions for replacement panels
5. Safety Check-Out Procedures
• Post-repair safety checks for solder joints, board wiring, line cords, and metallic leakage
• AC leakage test (0.5 mA max) using Simpson 229 / RCA WT-540A testers
• Ground verification & Earth potential test procedures
6. Self-Diagnosis Function
• Diagnostic LED Flash Code table for troubleshooting
• Memory failure, T-CON, FRC, and HDMI error indicators
• Backlight OVP (Over-Voltage Protection) and Temp Error codes
• Software error or mainboard Wi-Fi module fault indicators
• Service remote key sequence for error retrieval (DISPLAY + 5 + VOLUME- + POWER)
7. Electrical Adjustments & Circuit Description
• Power, Inverter, and Main Board voltage maps
• LED driver voltage regulation and protection circuits
• HDMI EQ, Audio Amp Protection, and Main 12 V/3.3 V supply checks
8. Exploded Views & Parts List
• Complete exploded views of chassis, LCD panel assembly, mainboard, speaker units, and inverter module
• Sony part numbers and replacement notes for safety-related components
🔧 Key Features
Full schematic and circuit diagrams for the AZ3F chassis
Self-diagnostic LED flash guide for rapid troubleshooting
Detailed LCD/TENGO panel replacement and repackaging process
Safety leakage and grounding test procedures for post-repair checks
Exploded parts diagrams with Sony OEM part numbers
📂 File Details
| Detail | Specification |
|---|---|
| Manual Name | Sony KDL-HX850 / HX853 / HX855 Service Manual |
| Models Covered | KDL-40HX850, KDL-46HX850, KDL-55HX850, HX853, HX855 |
| Chassis Type | AZ3F |
| Region | AEP / UK / IT |
| Year | 2012 |
| Manual PDF Quality | Factory-original, high-resolution with clear schematics |
| Total Pages | ~80 pages |
