Read Panasonic KX-NS500 / KX-NS520 Service Manual Supplement online
ORDER NO. KMS1506054SE
Hybrid IP-PBX
Model No.
KX-NS500
KX-NS520 Series
KX-NS520 Series
Power Supply Unit Change
Please file and use this supplement manual together with the service manual.
Model No.
Order No.
KX-NS500SA
KMS1404055CE
KX-NS500RU
KX-NS500UC
KX-NS500AG
KMS1407076CE
KMS1407077CE
KMS1409096CE
Model No.
Order No.
KX-NS520SA
KMS1404056CE
KX-NS520RU
KX-NS520UC
KX-NS520AG
KMS1407078CE
KMS1407079CE
KMS1409097CE
2
TABLE OF CONTENTS
PAGE
PAGE
1 CHANGES -----------------------------------------------------------3
1.1. Subject -------------------------------------------------------3
1.2. Replacement Parts List -----------------------------------3
1.2. Replacement Parts List -----------------------------------3
2 Technical Descriptions------------------------------------------5
2.1. Power Supply Unit -----------------------------------------5
2.1.1. Block Diagram and Circuit Description of
PSU -------------------------------------------------------5
2.2. AC input, Rectification Smoothing Circuit ------------5
2.3. Main Converter ---------------------------------------------6
2.4. DC Switch and DC Output Circuit----------------------7
2.5. Battery voltage input and output------------------------8
2.6. AC Alarm Circuit and DC Alarm Circuit---------------9
2.3. Main Converter ---------------------------------------------6
2.4. DC Switch and DC Output Circuit----------------------7
2.5. Battery voltage input and output------------------------8
2.6. AC Alarm Circuit and DC Alarm Circuit---------------9
3 Troubleshooting Guide---------------------------------------- 10
3.1. Power Supply Unit --------------------------------------- 10
3.1.1. No Voltage is Output at All (1)-------------------- 10
3.1.2. No Voltage is Output at All (2)-------------------- 11
3.1.3. 41V are Not Output --------------------------------- 12
3.1.4. Battery Backup Function Does Not
3.1.2. No Voltage is Output at All (2)-------------------- 11
3.1.3. 41V are Not Output --------------------------------- 12
3.1.4. Battery Backup Function Does Not
Operate / PSU can Not Charge Batteries ----- 13
4 Schematic Diagram--------------------------------------------- 14
4.1. Power Supply Board------------------------------------- 14
4.2. Waveform -------------------------------------------------- 15
4.2. Waveform -------------------------------------------------- 15
4.2.1. Power Supply Board-------------------------------- 15
5 Printed Circuit Board ------------------------------------------ 20
5.1. Power Supply Board------------------------------------- 20
5.1.1. Component View ------------------------------------ 20
5.1.2. Bottom View ------------------------------------------ 21
5.1.2. Bottom View ------------------------------------------ 21
6 Exploded View and Replacement Parts List ----------- 22
6.1. Cabinet and Electrical Parts Location--------------- 22
6.1.1. PSU ----------------------------------------------------- 22
6.2. Replacement Parts List --------------------------------- 24
6.2.1. Power Supply Board parts (PCB3)-------------- 24
3
1 CHANGES
1.1.
Subject
Suffix Location
1.2.
Replacement Parts List
KX-NS500
Suffix
Reason for suffix change
I to J
Change PSU and the related parts. (KX-NS500SA)
F to G
Change PSU and the related parts. (KX-NS500RU/UC, KX-NS520SA)
B to C
Change PSU and the related parts. (KX-NS520RU/UC)
Reason for Change
*The following items (1-8) indicate the reason for change. See the “Notes” column for each part in ORIGINAL AND NEW PARTS COMPARISON
LISTS.
1. Improve performance
*The following items (1-8) indicate the reason for change. See the “Notes” column for each part in ORIGINAL AND NEW PARTS COMPARISON
LISTS.
1. Improve performance
1. Mark*1 has been changed at the same time.
2. Change of material or dimension
3. To meet approved specification
4. Standardization
5. Addition
6. Deletion
7. Correction
8. Other
3. To meet approved specification
4. Standardization
5. Addition
6. Deletion
7. Correction
8. Other
Interchangeability Code (Symbols: B) Following V-Z interchange abilities are indicated on the Notes in the bottom column.
Parts
Set Production
V Original
New
Early (before change)
Late (after change)
Late (after change)
Original or new parts may be used in early or late production sets.
Use original parts until exhausted, then stock new parts.
Use original parts until exhausted, then stock new parts.
W Original
New
Early (before change)
Late (after change)
Late (after change)
Original parts may be used in early production sets only. New parts may be used in early or
late production sets. Use original parts where possible, then stock new parts.
late production sets. Use original parts where possible, then stock new parts.
X Original
New
Early (before change)
Late (after change)
Late (after change)
New parts only may be used in early or late production sets.
Stock new parts.
Stock new parts.
Y Original
New
Early (before change)
Late (after change)
Late (after change)
Original parts may be used in early production sets only. New parts may be used in late
production sets only. Stock both original and new parts.
production sets only. Stock both original and new parts.
Z Other
Ref. No.
Part No.
Part Name & Description
Pcs
Remarks
Notes
Time of change
(Suffix)
Original (Old)
New
CABINET AND ELECTRICAL PARTS
2
2
PNKM1522Z1
PNZCNS500BX
LOWER CABINET (SA/AG Only)
1
*1
8
Y
J
2
PNKM1522Z1
PNZCNS500RU
LOWER CABINET (RU/UC Only)
1
*1
8
Y
G
7
PNMH1321Z
---
CAPACITOR COVER
1
6
Y
J-G
8
PNHR1973Z
---
SPACER
1
6
Y
J-G
9
PNMH1311Z
---
CONNECT PLATE
1
6
Y
J-G
10
PNHX1787Z
---
PROTECT SHEET
1
6
Y
J-G
11
PNMH1318Y
---
FG PLATE
1
6
Y
J-G
12
PNHR1629Z
---
LOCKING WIRE SADDLE
1
6
Y
J-G
16
PNMC1107Z
---
GASKET
1
6
Y
J-G
17
PNJS101016Z
---
WIRE
1
6
Y
J-G
22
---
PNWSNS700NE
DC SW CABLE ASS’Y
1
*1
5
Y
J-G
23
---
PNJS101019Z
POWER CABLE
1
*1
5
Y
J-G
24
---
J0KG00000098
FILTER
1
*1
5
Y
J-G
25
---
PSHE1177Z
CABLE STRAP
1
*1
5
Y
J-G
POWER SUPPLY BOARD PARTS
PCB3
PCB3
PNLP2290Y
PNLP8531Y
POWER SUPPLY ASS'Y (RTL)
1
*1
8
Y
J-G
4
KX-NS520
Ref. No.
Part No.
Part Name & Description
Pcs
Remarks
Notes
Time of change
(Suffix)
Original (Old)
New
CABINET AND ELECTRICAL PARTS
2
2
PNKM1522X1
PNZCNS520BX
LOWER CABINET (SA/AG Only)
1
*1
8
Y
G
2
PNKM1522X1
PNZCNS520RU
LOWER CABINET (RU/UC Only)
1
*1
8
Y
C
6
PNMH1321Z
---
CAPACITOR COVER
1
6
Y
C-G
7
PNHR1973Z
---
SPACER
1
6
Y
C-G
8
PNMH1311Z
---
CONNECT PLATE
1
6
Y
C-G
9
PNHX1787Z
---
PROTECT SHEET
1
6
Y
C-G
10
PNMH1318Y
---
FG PLATE
1
6
Y
C-G
11
PNHR1629Z
---
LOCKING WIRE SADDLE
1
6
Y
C-G
15
PNMC1107Z
---
GASKET
1
6
Y
C-G
16
PNJS101016Z
---
WIRE
1
6
Y
C-G
22
---
PNWSNS700NE
DC SW CABLE ASS’Y
1
*1
5
Y
C-G
23
---
PNJS101019Z
POWER CABLE
1
*1
5
Y
C-G
24
---
J0KG00000098
FILTER
1
*1
5
Y
C-G
25
---
PSHE1177Z
CABLE STRAP
1
*1
5
Y
C-G
POWER SUPPLY BOARD PARTS
PCB3
PCB3
PNLP2290Y
PNLP8531Y
POWER SUPPLY ASS'Y (RTL)
1
*1
8
Y
C-G
