Panasonic KX-NS700 Service Manual Download | Manualshive

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8

2.1.3.

41V are Not Output

Added into the Original Service Manual as section 9.2.3.

(Only 15V is output)

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Summary of Contents for KX-NS700

Page 1: ... 4 DC Switch and DC Output Circuit 4 1 5 AC Alarm Circuit and DC Alarm Circuit 5 2 Troubleshooting Guide 6 2 1 Power Supply Unit 6 2 1 1 No Voltage is Output at All 1 6 2 1 2 No Voltage is Output at All 2 7 2 1 3 41V are Not Output 8 3 Schematic Diagram 9 3 1 Power Supply Board 14 3 2 Waveform 9 4 Printed Circuit Board 15 4 1 Power Supply Board 15 4 1 1 Component View 15 4 1 2 Bottom View 16 5 Exp...

Page 2: ...s are mainly used as an object for the electric supply to a terminal 1 1 1 Block Diagram and Circuit Description of PSU Added into the Original Service Manual as section 4 5 1 1 2 AC input Rectification Smoothing Circuit Added into the Original Service Manual as section 4 6 1 Filter Circuit This circuit consists of the following components and removes the exogenous noise or the noise generated at ...

Page 3: ...ondary side AC alarm signal delivery section through U1 1 3 Main Converter Added into the Original Service Manual as section 4 7 This section describes the main converter circuit which insulates the primary DC voltage and converts the voltage to a Secondary voltage Vout 41V 1 Main Converter Section Primary This main converter consists of the following components Q6 main switch FET T1 isolation tra...

Page 4: ...h turns OFF Consequently the fold back current limiting shuts down 41V output To control this circuit 60V voltage which is generated in 15V Circuit 2 2 41V Output Converter Circuit 41V is devided to two outputs 41V and 41V_OP 41V is fed to the circuit on Base Board CPU Boaerd 41V_OP is fed to the optional card via Base Board 3 15V Output 3 1 15V Output Converter Circuit This circuit generates 15V ...

Page 5: ...s action turns Q23 OFF and then AC alarm sending output becomes OPEN Open collector output Q18 functions as same as Q23 and the output of Q23 is used for DC ALM control 2 DC Alarm Signal Sending Circuit When 41V is output normally shunt regurator U8 in the output voltage detection circuit turns ON and Q26 turns OFF Q21 also turns on and then DC alarm sending output becomes LOW When 41V output beco...

Page 6: ...Supply Unit Added into the Original Service Manual as section 9 2 2 1 1 No Voltage is Output at All 1 Added into the Original Service Manual as section 9 2 1 Main converter output voltage error Between pin1 and pin2 of CN100 DC Switch OFF ...

Page 7: ...7 2 1 2 No Voltage is Output at All 2 Added into the Original Service Manual as section 9 2 2 Output voltage of Main Converter is Normal Between pin1 and pin2 of CN100 DC Switch ON ...

Page 8: ...8 2 1 3 41V are Not Output Added into the Original Service Manual as section 9 2 3 Only 15V is output ...

Page 9: ...aveform 3 1 1 Power Supply Board Added into the Original Service Manual as section 12 5 6 1 2 3 4 5 6 7 8 VOLTAGE 312V VOLTAGE 328V CYCLE 10 00ms VOLTAGE 18 0V CYCLE 10 00ms VOLTAGE 14 6V CYCLE 30 80μs VOLTAGE 5 84V VOLTAGE 2 80V ...

Page 10: ...10 ９ 10 11 12 13 14 15 16 VOLTAGE 0V VOLTAGE 19 0V VOLTAGE 18 8V VOLTAGE 472V CYCLE 32 40μs VOLTAGE 27 2V CYCLE 32 20μs VOLTAGE 48 0V ...

Page 11: ...11 17 18 19 20 21 22 23 24 CYCLE 36 80μs VOLTAGE 42 4V VOLTAGE 42 4V VOLTAGE 42 4V VOLTAGE 57 6V VOLTAGE 15 4V VOLTAGE 42 0V VOLTAGE 42 0V ...

Page 12: ...12 25 26 27 28 29 30 31 32 VOLTAGE 25 6V VOLTAGE 2 64V VOLTAGE 62 4V VOLTAGE 64 0V CYCLE 6 500μs VOLTAGE 42 8V VOLTAGE 39 2V CYCLE 6 500μs ...

Page 13: ...13 33 34 VOLTAGE 1 66V VOLTAGE 0V ...

Page 14: ...51K 0 VOUT R29 160K 0 R38 160K 0 D9 RL207 D10 RL207 R42 160K 0 R49 39K 0 Q12 PMBT3904 Z7 6 8V R51 100K 0 R44 820K 0 R41 10K 0 R37 56K 0 R28 22K 0 Q8 MMBT3906 R45 56K 0 Q13 PMBT3904 R50 22K 0 VCC L N C15 100nF 0 C20 100nF 0 Q26 PMBT3904 CY5 471 250V L4 SHG1908A 103 L1 L2 C28 25V100uF Q17 MMBT3906 U8 TL431 0 5 R91 10K 0 15V R92 47K 0 R93 10K 0 R94 47K 0 R95 0R 0 R96 3 9K 0 FT1 Vin 1 Vout 2 GND 3 FB ...

Page 15: ...15 4 Printed Circuit Board 4 1 Power Supply Board Added into the Original Service Manual as section 13 4 4 1 1 Component View Added into the Original Service Manual as section 13 4 1 ...

Page 16: ...16 4 1 2 Bottom View Added into the Original Service Manual as section 13 4 2 ...

Page 17: ...loded View and Replacement Parts List 5 1 Cabinet and Electrical Parts Location 5 1 1 Power Supply Unit Added into the Original Service Manual as section 15 2 1 E1 PCB3 E3 E2 E3 E2 E2 E4 E5 E5 B B B B B B C A A ...

Page 18: ...1 0 J29 12BB0000JTX1 0 J30 12BB0000JTX1 0 R5 12CC0221JTX1 220 R7 12CC0221JTX1 220 R8 12CC0105JTX1 1 R10 12CC0221JTX1 220 R11 12BB0331JTX1 330 R14 12CC0221JTX1 220 R15 12CC0105JTX1 1 R16 12CC0105JTX1 1 R17 11FG0823JBS2 82k R24 12CC0519JTX1 5 1 R28 12BB0223JTX1 22k R29 12BB0164JTX1 160k R32 12CC0272JTX1 2 7k R33 12CC0220JTX1 22 R34 12CC0101JTX1 100 R37 12BB0563JTX1 56k R38 12BB0164JTX1 160k R40 12BB...

Page 19: ...332R0F 3300 C37 15NDY101R005 100 C38 18BD0474KIA1 0 47 C39 18BD0105KIA1 1 C43 18BB0104KIA1 0 1 C44 18BB0104KIA1 0 1 C45 18BB0103KIA1 0 01 Safety Ref No Part No Part Name Description Remarks CY1 16AQN222MUDN 2200 CY2 16AQN222MUDN 2200 CY3 16AQN222MUDN 2200 CY4 16APN471KFDJ 470 CY5 16APN471KFDJ 470 CX1 17ATK224KUG 0 22 CX2 17ATK474KUG1 0 47 J4 16AQN222MUDN 2200 TRANSISTORS Q8 07MM39060BX1 TRANSISTOR...

Page 20: ...817CFD PHOTOCO UPLE E1 35GE02131XH AC INLET E2 41Z03080102 Screw E3 41Z03060102 Screw E4 41F30060102 Screw E5 41P30060102 Screw 364001000U0 TUBE For FT1 364413000UT TUBE For FT1 VR1 364006000U0 TUBE For R17 36441500U0 TUBE For RT1 364008000U0 TUBE For R137 A XTW3 8LFJK7 Screw B XYN3 F8FJ Screw C PJNAC0021Z Screw Safety Ref No Part No Part Name Description Remarks ...

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