Caple C702G Manual de servicio Pagina 61
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9. Convergence Adjustment Signal: No.33(788*1200@75Hz)
Cross Hatch Pattern and frame Pattern
9-1. Settings
1) Receive Signal 33 (Cross Hatch Pattern and frame Pattern).
Adjust the H / V an interval of Cross Hatch Pattern to the following values, and Cross Hatch Pattern
consist of the 15 vertical lines and the 11 horizontal lines is displayed.
H interval: 54 dot
V interval: 112 line
2) It confirms that screen amplitude and screen positions are following values.
Screen amplitude H : 396mm±1.0mm
V : 297mm±1.0mm
Screen position H : | Xleft - Xright | ≦ 1.0mm
V : | Xtop - Xbottom | ≦ 1.0mm
3) Open Menu (S), TAG C, and make sure the data for each Item.
H. CONVER SAW T : 127
H. CONVER PARA T : 128
H. CONVER SAW B : 128
H. CONVER PARA B : 128
V. CONVER SAW T : 127
V. CONVER PARA T : 128
V. CONVER SAW B : 128
V. CONVER PARA B : 128
If not, Select item and then press RESET SW.
4) Open Menu (S), TAG B, and highlight TAG B.
Push and hold
“
RESET
”
SW and push
“
▲
”
SW at the same time.
(4H, 4V data on every COLUMN / ROW will be reset.)
5) Set a Convergence Meter.
REFERENCE COLOR : G
S.P. (STRIPE PITCH) : 0.25±0.02mm
9-2. Static Convergence Adjustment
Auto EMF function must be ON.
When each Convergence item is selected, Auto EMF will be worked and LED will be changed to orange.
While measuring convergence, hide OSM with
“
PROCEED
”
SW.
1) Receive Signal 33 White (Cross Hatch Pattern).
Measure the static convergence at center.
Spec : x , y ≦ 0.05mm
2) Receive Signal 33 Red and Blue (Cross Hatch Pattern).
If misconvergence at center is 0.21mm or greater, adjust 4-pole magnet on CPM to get 0.21mm or less.
If misconvergence at center is 0.20mm or less, adjust Menu (S), TAG B
“
H.S.CONVER
”
,
“
V.S.CONVER
”
to get the spec.
3) Receive Signal 33 White (Cross Hatch Pattern).
Adjust 6-pole magnet on CPM to get spec.
4) Receive Signal 33 Red and Blue again (Cross Hatch Pattern).
Adjust Menu (S), TAG B
“
H.S.CONVER
”
,
“
V.S.CONVER
”
to get the spec.
Adjustment limits
H.S.CONVER: 65 - 191
V.S.CONVER: 82 - 174
- SERVICE MANUAL 1
- PRODUCT SAFETY CAUTION 3
- CONTENTS 4
- SPECIFICATIONS 5
- CONTROLS 6
- SERIAL NUMBER INFORMATION 9
- ASSEMBLY 10
- Mount the EMF PWB 13
- Clamp the connector 13
- Insert a pencil between PLATE 21
- SHIELDING CRT ASSY and CN-CL 21
- CN-LEB as per sketch 21
- Clamp CN-CA, CN-CC 23
- ADJUSTMENT PROCEDURES 30
- Magnetized Pattern Example 32
- MultiSync 33
- OSD MENU (S) 36
- OSD MENU (U) 38
- ADJUSTMENT ITEMS 40
- [A] Pre-Adjustment 41
- [B] Initial Settings 41
- [C] Main Adjustment 41
- Center line 50
- XLeft XRight 52
- 45 +0/-1 55
- Vertical Cycle 59
- [D] Reference 65
- 16 VESA 1280*1024@60H 69
- 21 VESA 1280*1024@75Hz 70
- VESA 1920*1440@75Hz 70
- 25 H.HOLD1 70
- 640*480@140Hz 72
- 1280*1024@70Hz 73
- 1024*768@100Hz 73
- 800*600@120Hz 73
- 640*480@160Hz 73
- 800*600@140Hz 73
- Fig.3-1 SW/HV PWB 76
- Fig.3-2 CONT PWB 76
- Fig.3-3 SW PWB 76
- Fig.3-9 DEF PWB 79
- Fig.3-10 OSC PWB 79
- Program Disk 81
- TROUBLE SHOOTING 89
- 1. NO RASTER 90
- 3. UNSTABLE 96
- 5. ABNORMAL PICTURE 99
- 110
- 8. SELF TEST ERROR 112
- 10. RASTER ROTATION ERROR 113
- 14. MOIRE CANCEL FAILURE 121
- 15. PLUG & PLAY FAILURE 122
- 16. OUT OF Cg-SPECIFICATION 123
- 17. USB CIRCUIT FAILURE 124
- CIRCUIT DESCRIPTION 126
- 1. VIDEO CIRCIT 128
- SUB_BIAS 130
- BLANKING 130
- 2. DEFLECTION CIRCUIT 132
- Q571 H.LINEARITY2 136
- H.LINEARITY1 136
- Horizontal Frequency 136
- H.Out Trans 138
- +B Modulator 138
- PWM Chopper 138
- V SAW Input 141
- 3. HIGH VOLTAGE CIRCUIT 142
- 4. BLANKING CIRCUIT 144
- 5. DYNAMIC FOCUS CIRCUIT 145
- 6. CPU CIRCUIT 147
- BNC/D-SUB 152
- 22pin voltage 166
- BOTTOM LEFT 186
- BOTTOM RIGHT 186
- 11. USB CIRCUIT 187
- 12. AUTO ADJUST CIRCUIT 188
- REPLACEMENT PARTS LIST 189
- MAIN CPU 265
- for Human Potential 266
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