CONTENTS
SAFETY PRECAUTIONS
SEC 1 Operating Instructions
Precautions for use..................................................................................................................... 1-1
Parts and their functions ............................................................................................................. 1-2
Adjusting the Viewfinder.............................................................................................................. 1-2
Mounting the Microphone............................................................................................................ 1-3
SEC 2 Disassembly Procedures
1. Mounting unit removal............................................................................................................. 2-1
2. Microphone holder removal..................................................................................................... 2-1
3. Eye piece unit removal............................................................................................................ 2-1
4. Eye piece rubber removal ....................................................................................................... 2-1
5. Upper case removal................................................................................................................ 2-2
6. Bottom case removal .............................................................................................................. 2-2
7. CRT unit removal ................................................................................................................... 2-2
8. SUB 1 P.C.Board removal....................................................................................................... 2-3
9. SUB 2 P.C.Board removal....................................................................................................... 2-3
10. MAIN P.C.Board removal ..................................................................................................... 2-3
11. Guard bar removal............................................................................................................... 2-3
12. LED P.C.Board removal ....................................................................................................... 2-4
13. Back tally base removal ....................................................................................................... 2-4
SEC 3 electrical adjustment procedures
1-1. measuring equipment and special tools................................................................................. 3-1
1-2. Adjustment preparation ........................................................................................................ 3-1
2. Electrical Adjustment (AJ-VF15)
2-1. Power voltage adjustment..................................................................................................... 3-2
2-2. V Hold adjustment................................................................................................................ 3-2
2-3. H Hold adjustment ............................................................................................................... 3-2
2-4. Focus adjustment................................................................................................................. 3-2
2-5. Screen size adjustment ........................................................................................................ 3-2
2-6. Brightness adjustment .......................................................................................................... 3-3
2-7. High voltage regulator adjustment ......................................................................................... 3-3
2-8. Heater voltage adjustment .................................................................................................... 3-3
2-9. Peaking balance adjustment ................................................................................................. 3-3
3. Electrical Adjustment (AJ-VF20W)
3-1. Power voltage adjustment..................................................................................................... 3-4
3-2. V Hold adjustment................................................................................................................ 3-4
3-3. H Hold adjustment ............................................................................................................... 3-4
3-4. Focus adjustment................................................................................................................. 3-4
3-5. Screen size adjustment 1 (4:3 mode) .................................................................................... 3-4
Screen size adjustment 2 (16:9 mode)................................................................................... 3-4
3-6. Brightness adjustment 1 (4:3 mode) ...................................................................................... 3-5
Brightness adjustment 2 (16:9 mode) .................................................................................... 3-5
3-7. High voltage regulator adjustment ......................................................................................... 3-5
3-8. Heater voltage adjustment .................................................................................................... 3-6
3-9. Peaking balance adjustment ................................................................................................. 3-6
SEC 4 Block diagrams, Schematic diagrams, Circuit board diagrams
EVF BLOCK DIAGRAMS ............................................................................................................ BLK 1
MAIN SCHEMATIC DIAGRAMS .................................................................................................. SCM 1
MAIN SUB 1 SCHEMATIC DIAGRAMS ....................................................................................... SCM 2
MAIN SUB 2 SCHEMATIC DIAGRAMS ....................................................................................... SCM 3
MAIN P.C.BOARD (VEP20780)................................................................................................... PTN 1
MAIN P.C.BOARD (VEP20781) .................................................................................................. PTN 1
MAIN P.C.BOARD (VEP20782)................................................................................................... PTN 2
LED P.C.BOARD (VEP20783)..................................................................................................... PTN 2
SEC 5 Exploded views & replacement parts list
Packing parts assembly .............................................................................................................. PRT 1
Mechanical parts assembly ......................................................................................................... PRT 2
Electrical replacement parts list ................................................................................................... PRT 4
