Sony KLV-26V300A, KLV-32V300A, KLV-40V300A, KLV-46V300A
Service Manual and Circuit Diagram
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Sony KLV-26V300A, KLV-32V300A, KLV-40V300A, KLV-46V300A <br>Service Manual and Circuit Diagram  <br> <font color=red>New!</font>
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This Sony KLV-26V300A KLV-32V300A KLV-40V300A KLV-46V300A Service Manual and Circuit Diagram
. This service information is designed for experienced repair technicians only and not designed for use by the general public.


TABLE OF CONTENTS

1. DISASSEMBLY

1-1. Rear Cover Removal .................................................... 7
1-2. Vesa Bracket Assembly Removal ................................ 9
1-3. H1 Board Removal .................................................... 11
1-4. U1 Board Removal .................................................... 11
1-5. G1H Board Removal ................................................. 12
1-6. G3 and D1 Boards Removal ...................................... 13
1-7. DTT Shield, UT and BG1 Boards Removal ............. 14
1-8. D2 Board Removal .................................................... 15
1-9. Inlet, AC (with noise filter) Removal ........................ 15
1-10. Speaker, H3 and H4 Boards Removal ....................... 17
1-11. LCD Panel Removal .................................................. 18

2. WIRE DRESSING

2-1. (KLV-26V300A) ...................................................... 20
2-2. (KLV-32V300A) ...................................................... 22
2-3. (KLV-40V300A) ...................................................... 25
2-4. (KLV-46V300A) ...................................................... 29

3. SERVICE ADJUSTMENTS

3-1. How to enter Service Mode ....................................... 34
3-2. Signal Level Adjustment ........................................... 34
3-3. Gamma Adjustment ................................................... 36
3-4. White Balance Adjustment ........................................ 37
3-5. Panel Replacement ..................................................... 38
3-6. Board Replacement .................................................... 38

4. DIAGRAMS

4-1. Block Diagram ........................................................... 39
4-1-1. BG1 (1/3) Block Diagram .............................. 39
4-1-2. BG1 (2/3), H1, H3, H4 and UT Diagrams ..... 40
4-1-3. BG1 (3/3) and U1 Diagrams ........................... 42
4-2. Circuit Boards Location ............................................ 44
4-3. Schematic Diagram Information ............................... 44
4-3-1. BG1 Board — (001) ....................................... 45
4-3-2. BG1 Board — (002) ....................................... 46
4-3-3. BG1 Board — (003) ....................................... 48
4-3-4. BG1 Board — (004) ....................................... 50
4-3-5. BG1 Board — (005) ....................................... 52
4-3-6. BG1 Board — (006) ....................................... 54
4-3-7. BG1 Board — (007) ....................................... 56
4-3-8. BG1 Board — (008) ....................................... 58
4-3-9. BG1 Board — (009) ....................................... 60
4-3-10. G1H, G3, D1 & D2 Boards Schematic Diagram .................................................... 62
4-3-11. H1 Board Schematic Diagram ...................... 63
4-3-12. H3 Board Schematic Diagram ...................... 64
4-3-13. H4 Board Schematic Diagram ...................... 66
4-3-14. U1 Board Schematic Diagram ...................... 67
4-3-15. UT Board Schematic Diagram ..................... 69
4-4. Voltage Measurement and Waveforms ...................... 71
4-5. Printed Wiring Boards ............................................... 73
4-6. Semiconductors .......................................................... 81

5. EXPLODED VIEWS

5-1. Rear Cabinet and Stand Assy .................................... 83
5-2. Frame and Cover ........................................................ 85
5-3. Chassis-1 .................................................................... 87
5-4. Chassis-2 .................................................................... 88
5-5. H3, H4 Boards and Speaker ...................................... 90
5-6. Bezel Assy and LCD Panel ........................................ 91
5-7. Accessories and Packing Materials ........................... 92

6. ELECTRICAL PARTS LIST .............................................. 95

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Zip archive: 12 250 kB

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We are in business since 2002 and do our best to give our customers perfect service!

  Joanne Phanco 2024-10-23 16:30:21  
  Still using an old Epson ET-2550, got a warning that there was a problem with one of the ink pads then within a few days got an error code E-11 which stopped the printer working completely (ink waste collector full and needed a counter reset). Searched for issue and Bootstrappin' on Youtube talked through a fix using WIC Utility. The hardest part of the whole process for me was getting the ink waste collector off the printer and washing out the pads. The WIC Utility was really easy to install and use and has fixed the problem straight away. Wouldn't hesitate to recommend.
  goran kocevski 2009-02-28 15:23:56  
  It is easy and good manual. thank you!
  Nali Nole 2019-03-29 14:20:12  
  Hello, excellent application. I dont have to buy a new printer:) Thank you very much
  Neil Skidmore 2015-11-23 00:28:01  
  Ace. I downloaded the programme which told me that one waste ink was at 65 % and the other was at 100% This told me that the programme was communicating with the printer (Another utility I tried would not even talk to the printer.) This gave me confidence to buy the key to activate the reset. It worked in seconds and my now perfectly functioning A3+ printer is no longer a pile of scrap. If only Epson UK were this good!!!
  John Fisher 2010-10-12 12:16:35  
  Thanks soooooo much !!!!! thought my printer was dead until i downloaded the reset utility and got my key. Process over and printer working in minutes. Saved the cost of a new printer. will recommend to anyone and use again if needed, as the service was 5 star plus.
  Wesley Pritchard 2004-02-07 21:55:21  
  The only way to really adjust you printer is by using this program. The owner the printer could not adjust the print using the regular adjustmest utility incleuded in the printer drivers. But this program did the trick. The printer is perfectly adjusted and the owner is very happy with the printer now.
  maria koszko 2005-05-17 07:39:10  
  i just wnna thank u for ur gret websit becoz its so easy and shortly . by other wise i need u to info me about service manual if it has trouble codes and diagnostic and troubleshooting procedures ?......thanx
  Linda S Perkins 2018-02-15 12:00:09  
  Wow, what a program, it just reset my Epson WF 7525 with inkpad problem. Thank you! Max
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Service Manual and Circuit Diagram
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