© Panasonic Corporation 2010
Unauthorized copying and distribution is a violation
of law.
Order Number MTNC100664CE
B32 Canada: B61
Hospitality LCD HDTV
Model No.
TH-42LRU20
LA11 Chassis
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions
-----------------------------------------------
3
1.1. General Guidelines---------------------------------------- 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. Service Hint ------------------------------------------------- 6
3.2. Applicable signals ----------------------------------------- 6
4 Specifications
-----------------------------------------------------
7
5 Service Mode
------------------------------------------------------
8
5.1. How to enter into Service Mode ----------------------- 8
5.2. SRV-TOOL -------------------------------------------------- 9
5.3. Hotel mode -------------------------------------------------10
5.4. Data Copy by SD Card---------------------------------- 11
6 Troubleshooting Guide
----------------------------------------
14
6.1. Check of the IIC bus lines ------------------------------14
6.2. Power LED Blinking timing chart ---------------------15
6.3. No Power--------------------------------------------------- 15
7 Disassembly and Assembly Instructions
---------------
16
7.1. Removal of Rear Cover -------------------------------- 16
7.2. Removal of Pedestal Assy----------------------------- 16
7.3. Removal of AC Cord ------------------------------------ 16
7.4. Removal of Control Panel Assy ---------------------- 16
7.5. Removal of P-Board------------------------------------- 16
7.6. Removal of TA-Board ----------------------------------- 16
7.7. Removal of Side AV Bracket -------------------------- 17
7.8. Removal of A-Board------------------------------------- 17
7.9. Removal of Speaker Unit (L, R) ---------------------- 17
7.10. Removal of V-Board ------------------------------------- 18
7.11. Removal of LCD Panel and Cabinet Assy --------- 18
8 Measurements and Adjustments
--------------------------
20
8.1. Voltage chart of A-board ------------------------------- 20
8.2. Picture level adjustment (RF) ------------------------- 20
9 Block Diagram
---------------------------------------------------
21
9.1. Main Block Diagram ------------------------------------ 21
Summary of Contents for TH37LRU20 - HOSPITALITY LCD HDTV
Page 19: ...19 TH 42LRU20 9 Remove 1 screw and then remove the V Board Block from the Cabinet Assy ...
Page 24: ...TH 42LRU20 24 ...
Page 25: ...25 TH 42LRU20 10 Wiring Connection Diagram 10 1 Wiring ...
Page 26: ...26 TH 42LRU20 ...
Page 27: ...TH 42LRU20 27 11 Schematic Diagram 11 1 Schematic Diagram Notes ...
Page 50: ...TH 42LRU20 50 ...
Page 60: ...Model No TH 42LRU20 Important Safety Notice ...
Page 61: ...Model No TH 42LRU20 Exploded View ...
