Caple C702G Manuel de service Page 89
- Page / 286
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
7-1
TROUBLE SHOOTING
TABLE OF CONTENTS
Page
1. NO RASTER
………………………………………………………………………………………………………… 7-2
2. ABNORMAL VIDEO ON CRT SCREEN (too dark or too bright)
………………………………………….. 7-4
3. UNSTABLE PICTURE
…………………………………………………………………………………………….. 7-8
3-1.Horizontal……………………………………………………………………………………………………….. 7-8
3-2.Vertical ………………………………………………………………………………………………………….. 7-9
4. ON SCREEN MANAGER (OSM) FAILURE
…………………………………………………………………….. 7-10
5. ABNORMAL PICTURE
……………………………………………………………………………………………. 7-11
5-1.Horizontal Size………………………………………………………………………………………………….. 7-11
5-2.Vertical Size…………………………………………………………………………………………………….. 7-13
5-3.Horizontal Position……………………………………………………………………………………………... 7-13
5-4.Vertical Position………………………………………………………………………………………………… 7-14
5-5.Poor Linearity…………………………………………………………………………………………………… 7-14
5-5-1.Horizontal………………………………………………………………………………………………….. 7-14
5-5-2.Vertical……………………………………………………………………………………………………... 7-14
5-6.Distortion Correction Circuit…………………………………………………………………………………... 7-15
5-7.Poor Focus……………………………………………………………………………………………………... 7-16
5-8.Impurity On CRT Screen…………………………………………………………………………………….... 7-17
6. H OSC / DEF / HV CIRCUIT FAILURE
………………………………………………………………………...... 7-20
7. V OSC / DEF CIRCUIT FAILURE
………………………………………………………………………………... 7-23
8. SELF TEST ERROR
……………………………………………………………………………………………….. 7-24
9. RASTER CENTERING CIRCUIT FAILURE
…………………………………………………………………….. 7-25
10. RASTER ROTATION ERROR
…………………………………………………………………………………... 7-25
11. POWER MANAGEMENT SYSTEM (PMS) FAILURE
………………………………………………………... 7-26
11-1. PMS FAILURE 1(When a monitor receives Horizontal and Vertical Sync.)…………………………… 7-26
11-2. PMS FAILURE 2(When a monitor receives no Horizontal Sync)………………………………………. 7-27
11-3. PMS FAILURE 3(When a monitor receives no Vertical Sync) …………………………………………. 7-27
11-4. PMS FAILURE 4(When monitor receives neither Horizontal nor Vertical Sync)……………………… 7-27
12. DIGITAL CONTROL CIRCUIT FAILURE
……………………………………………………………………… 7-28
12-1. Digital control error…………………………………………………………………………………………... 7-28
12-2. User control error…………………………………………………………………………………………….. 7-29
12-3. DAC output error……………………………………………………………………………………………… 7-29
13. SWITCHING REGULATOR CIRCUIT FAILURE
……………………………………………………………… 7-30
14. MOIRE CANCEL FAILURE
....................................................................................................................... 7-33
15. PLUG & PLAY FAILURE
………………………………………………………………………………………… 7-34
15-1. DDC 1 failure…………………………………………………………………………………………………. 7-34
15-2. DDC 2B failure……………………………………………………………………………………………….. 7-34
16. OUT OF Cg-SPECIFICATION
................................................................................................................... 7-35
17. USB CIRCUIT FAILURE
............................................................................................................................7-36
18. AUTO ADJUST CIRCUIT FAILURE
……………………………………………………………………………. 7-37
- 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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