DOWNLOAD Panasonic KX-NS500UC (serv.man2) Service Manual ↓ Size: 12.71 MB | Pages: 127 in PDF or view online for FREE

Model
KX-NS500UC (serv.man2)
Pages
127
Size
12.71 MB
Type
PDF
Document
Service Manual
Brand
Device
PBX / HYBRID IP-PBX
File
kx-ns500uc-sm2.pdf
Date
PREV: Panasonic KX-NS500UC Service Manual / Supplement

Panasonic KX-NS500UC (serv.man2) Service Manual ▷ View online

85
KX-NS500UC
12.7.4.
CPU Board NAND Access
NAND Memory Access
CH
Signal Name
Test Point
CH1
*CS
R211
CH2
*WE
R217
CH3
ALE
R219
CH4
GP_D[7]
IC203-44
*CS
*WE
ALE
I/O[7]
*CS
*WE
ALE
I/O[7]
*CS
*WE
ALE
I/O[7]
*CS
*WE
ALE
I/O[7]
NAND Command
tDS=232ns
tWP=168ns
tALS=228ns
86
KX-NS500UC
CH
Signal Name
Test Point
CH1
*CS
R211
CH2
*RE
R216
CH3
RDY
R231
CH4
GP_D[7]
IC203-44
*CS
*RE
RDY
I/O[7]
*CS
*RE
RDY
I/O[7]
*CS
*RE
RDY
I/O[7]
*CS
*RE
RDY
I/O[7]
*CS
*RE
RDY
I/O[7]
tCS=300ns
tRR=86.8us
tREA=16ns
tRP=155.2ns
900ns
87
KX-NS500UC
12.7.5.
CPU Board SRAM Access
SRAM Access Timing
1. Read Cycle
2. Write Cycle
*CS
IC206-6
GP_A[1]
IC206-5
*OE
IC206-41
GP_D[8]
IC206-29
*CS
IC206-6
GP_A[1]
IC206-5
*WE
IC206-17
GP_D[8]
IC206-29
88
KX-NS500UC
12.7.6.
Power Supply Board
17V
12㻌㻌㻌s
CH3 100 : 1
5.00   V/div
DC     20MHz
10   s
16V
CH3 100 : 1
5.00   V/div
DC     20MHz
12   s
220V
CH3 100 : 1
0.100k V/div
DC     20MHz
10   s
440V
CH3 100 : 1
0.100k V/div
DC     20MHz
3.3   s
40V
CH3 100 : 1
10.0   V/div
DC     20MHz
3 AC100V
3 AC240V
4 AC240V
6
4 AC100V
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