14
Check VBUS power supply turning on.
• [TPF107]
Check power supply for the SD card.
• [TPF124] +3.3V
Check power supply for OLED.
• [TPF732] +3.3VD
• [TPF760] +15V
Check OLED control signal.
• [IC701] 3pin,6pin
• [IC702] 3pin,6pin
• [IC505] 8pin
Check USB multiplexer.
• [IC105] signal line
Check u-com communication line.
Check part.
• [TR102,TR103] and the surrounding constant.
b
Check external VBUS input.
Check part.
• [IC106] and the surrounding constant.
Check output of the power supply.
• [IC109] and the surrounding constant.
• [IC312] and the surrounding constant.
• [TR701,TR702] and the surrounding constant.
Check part.
• [IC701,IC702] and the surrounding constant.
・[IC505]
Check part.
• [IC105] and the surrounding constant.
Check communication line with the main u-com.
• Dumping resistance.
Replace MAIN UNIT.
Replace MAIN UNIT.
Replace OLED.
1.4. USB DEVICE(PC) does not operate
1.5. SD card is not recognized
1.6. DISPLAY does not display
N.G.
N.G.
N.G.
N.G.
N.G.
N.G.
O.K.
O.K.
O.K.
O.K.
O.K.
O.K.
Summary of Contents for DN-F650R
Page 5: ...5 DIMENSION 325 0 mm 10 0 mm 7 0 mm 483 0 mm 483 0 mm 8 0 mm 52 0 mm ...
Page 20: ...20 Personal notes ...
Page 21: ...21 PLL1707 KEYBOARD TALLY_OUT NJW1159 16 66MHz BLOCK DIAGRAM ...
Page 23: ...23 5 5 5 5 5 5 5 5 5 5 5 5 0 1 1 2 3 5 5 5 5 5 5 2 3 6 6 6 6 2 3 5 7 7 6 ...
Page 45: ...45 38 R5S72631P200FP Terminal Function ...
Page 46: ...46 39 R5S72631P200FP Terminal Function ...
Page 47: ...47 40 R5S72631P200FP Terminal Function ...
Page 48: ...48 41 R5S72631P200FP Terminal Function ...
Page 49: ...49 42 R5S72631P200FP Terminal Function ...
Page 50: ...50 43 R5S72631P200FP Terminal Function ...
Page 51: ...51 44 R5S72631P200FP Terminal Function ...
Page 52: ...52 45 R5S72631P200FP Terminal Function ...
Page 53: ...53 46 R5S72631P200FP Terminal Function ...
Page 54: ...54 47 R5S72631P200FP Terminal Function ...
Page 56: ...56 W9825G6EH 6J MAIN IC502 IC503 49 Q102 Q103 W9825G6EH 6 ...
Page 57: ...57 W9825G6EH 6J Pin Description 50 Q102 Q103 W9825G6EH 6 ...
Page 58: ...58 W9825G6EH 6J Block Diagram Q102 Q103 W9825G6EH 6 ...
Page 59: ...59 AK4683EQ MAIN IC405 56 Q802 AK4683 ...
Page 61: ...61 AK4683EQ Pin Description 58 Q802 AK4683 ...
Page 65: ...65 NJW1159V MAIN IC209 NJW1159V Block Diagram ...
Page 67: ...67 S1R72U01F12E300 MAIN IC104 S1R72U01F12E300 Block Diagram ...
Page 69: ...69 UPD78F9222 DNF650R I O POWER IC306 ...
Page 70: ...70 UPD78F9222 DNF650R Pin Function ...
Page 71: ...71 UPD78F9222 DNF650R Pin Function ...
Page 72: ...72 BU4053BCFV MAIN IC203 ...
Page 73: ...73 2 FL DISPLAY OLED ASSY Z 001 Recommend Circuit AGND ...
Page 88: ...88 Personal notes ...