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4.4 Replacement parts list
LCD display unit (NWZ-4650) parts list
Name Model name
LCD unit CCN-423 CCN423
Control unit (NCK-175) parts list
Name Model name
Power supply input board CBJ-165 CBJ165
AC power supply unit S8EX-N03012L 5EPSF00033
DC/DC power supply unit CBD-1929 CBD1929
Control circuit board CDJ-2486 CDJ2486
Reset button unit (NCJ-895) parts list
Name Model name
Reset button unit
Membrane switch replacement kit
H-7ZZNA4111 7ZZNA4111
Reset button unit (Waterproof) (NCJ-896) parts list
Name Model name
Reset button unit (Waterproof)
Membrane switch replacement kit
H-7ZZNA4112 7ZZNA4112
4.5 Periodic replacement part
Since the following table’s parts (in this system) have lifetime, the parts are needed periodical
replacement.
Their replacement rough indication periods at normal operation are also shown in the following
table:
Number
Name Type
Durable
備 考
1 LCD unit CCN-423
When the power supply is always
on.
2
Membrane switch
H-7ZZNA4111
50000
hours
When it is pushed once for 3
minutes.
3
(Waterproof)
Membrane switch
H-7ZZNA4112
50000
hours
When it is pushed once for 3
minutes.
Please contact to the vender, the sales department of JRC, a nearby branch office, business
office, or any agents of JRC about Periodic Replacement Part.