2
TH-32LRT12U-A * TH-37LRT12U/M/A
8.2.1. Removal of Back Cover---------------------------- 20
8.2.2. Removal of Pedestal Assy ------------------------ 20
8.2.3. Removal of EMI Case and Wall Mount
Holder -------------------------------------------------- 20
8.2.4. Removal of Main PCB, Power PCB, and
RS232 PCB ------------------------------------------- 21
8.2.5. Removal of Power SW PCB and
Operation PCB --------------------------------------- 21
8.2.6. Removal of Speaker (L, R)------------------------ 21
8.2.7. Removal of LCD Panel and Cabinet------------ 22
9 Adjustments and Upgrade
-----------------------------------
23
9.1. White Balance Adjustment (TH-32LRT12U-A) --- 23
9.1.1. Test Condition ---------------------------------------- 23
9.1.2. Low Light Adjustment ------------------------------ 23
9.1.3. High Light Adjustment------------------------------ 23
9.2. White Balance Adjustment (TH-37LRT12U/M/
A) ------------------------------------------------------------- 23
9.2.1. Test Condition ---------------------------------------- 23
9.2.2. Low Light Adjustment ------------------------------ 23
9.2.3. High Light Adjustment------------------------------ 23
9.3. Software Upgrade---------------------------------------- 24
9.3.1. Main micon eeprom upgrade --------------------- 24
9.3.2. Sub micon upgrade --------------------------------- 27
10 Block Diagram
---------------------------------------------------
30
10.1. System Block Diagram---------------------------------- 30
10.2. Power Unit Block Diagram for TH-32LRT12U-
A -------------------------------------------------------------- 31
10.3. Panel Block Diagram for TH-32LRT12U-A -------- 32
10.4. Power Unit Block Diagram for TH-37LRT12U/
M/A----------------------------------------------------------- 33
10.5. Power Unit Block Diagram for TH-37LRT12U/
M/A----------------------------------------------------------- 34
11 Wiring Connection Diagram
---------------------------------
35
11.1. Wiring (1) TH-32LRT12U-A---------------------------- 35
11.2. Wiring (2) TH-32LRT12U-A---------------------------- 36
11.3. Wiring (3) TH-32LRT12U-A---------------------------- 37
11.4. Wiring (4) TH-37LRT12U/M/A ------------------------ 38
12 Schematic Diagram
---------------------------------------------
39
12.1. Schematic Diagram Notes ----------------------------- 39
12.2. Main Board (1 of 15) Schematic Diagram --------- 40
12.3. Main Board (2 of 15) Schematic Diagram --------- 41
12.4. Main Board (3 of 15) Schematic Diagram --------- 42
12.5. Main Board (4 of 15) Schematic Diagram --------- 43
12.6. Main Board (5 of 15) Schematic Diagram --------- 44
12.7. Main Board (6 of 15) Schematic Diagram --------- 45
12.8. Main Board (7 of 15) Schematic Diagram --------- 46
12.9. Main Board (8 of 15) Schematic Diagram --------- 47
12.10. Main Board (9 of 15) Schematic Diagram --------- 48
12.11. Main Board (10 of 15) Schematic Diagram -------- 49
12.12. Main Board (11 of 15) Schematic Diagram -------- 50
12.13. Main Board (12 of 15) Schematic Diagram -------- 51
12.14. Main Board (13 of 15) Schematic Diagram -------- 52
12.15. Main Board (14 of 15) Schematic Diagram -------- 53
12.16. Main Board (15 of 15) Schematic Diagram -------- 54
12.17. Keypad Board Schematic Diagram (TH-
32LRT12U-A) --------------------------------------------- 55
12.18. AV3 Board Schematic Diagram (TH-
32LRT12U-A) --------------------------------------------- 56
12.19. AV3+SW Board Schematic Diagram (TH-
37LRT12U/M/A) ------------------------------------------ 57
12.20. RS232 Board Schematic Diagram ------------------- 58
12.21. IR Board Schematic Diagram ------------------------ 59
12.22. Power Board Schematic Diagram (1/2) (for
TH-32LRT12U-A) ---------------------------------------- 60
12.23. Power Board Schematic Diagram (2/2) (for
TH-32LRT12U-A) ---------------------------------------- 61
12.24. Power Board Schematic Diagram (for TH-
37LRT12U/M/A)------------------------------------------ 62
13 Printed Circuit Board
------------------------------------------
63
13.1. Main PCB (Component Side)------------------------- 63
13.2. Main Board (Foil Side) --------------------------------- 64
13.3. AV3+SW and Keypad Board-------------------------- 65
13.4. AV3, IR, and RS232 Board---------------------------- 66
13.5. Power Board (Top Side) ------------------------------- 67
13.6. Power Board (Bottom Side) --------------------------- 68
14 Exploded View and Replacement Parts List
-----------
69
14.1. Exploded View and Mechanical Replacement
Parts List (TH-32LRT12U-A)-------------------------- 69
14.2. Exploded View and Mechanical Replacement
Parts List (TH-37LRT12U/M/A) ---------------------- 72
14.3. Electrical Replacement Parts List ------------------- 75
14.3.1. Replacement Parts List Notes ------------------- 75
14.3.2. Electrical Replacement Parts List--------------- 76
