NEC PX-50XM4, Service Manual

Page: 341 / 535

PX-50XR4A
PX-50XR4W
PX-50XR4GS
AU PV
TM
FA
FB
PM
PN
PW
SW
RS
PW
LD
PM
PN
PA
PV
PA
AU
AC
TM
TR
TR
TS
TS
PH PD
SW
LD
AD
AD
AD
RS
CCD board of PX-50XR4A : Try to push the bush rivet CCD board of PX-50XR4A : Try to push the bush rivet
and the connector to check for the freedom from floating.
and the connector to check for the freedom from floating.
PARTS NAME PANTS NO. Q'TY
PARTS NAME PANTS NO. Q'TY
EDGING SADDLE(EDS-1208U) 29C00461
5
LUG(L60) 29C01471
2
CLAMPER,WIRE(D11.5)
24281251
1
FERRITE CORE ZCAT2032-930 6S170005
9
CLAMP(WS-2W-V0)
29C01421
16
CORE,FERRITE SFT-72SNB 6S170003
4
CLAMP(MWC-2S)
29C01401
16
FERRITE CORE ESD-R-19 6S170007
1
FERRITE CORE ZCAT1518-0730 6S170006
1
AC INLET
GREEN(GND)
BROWN
BLUE
Class B Model Class B Model
Remove the SW connector from the
Remove the SW connector from the
clamper block that is located at the clamper block that is located at the
upper level in the parentheses. upper level in the parentheses.
Mount the core. Mount the core.
Class B Model Class B Model
Addition of cores (3 pcs. in all)
Addition of cores (3 pcs. in all)
FERRITE CORE ZCAT2032-930 2pcs. FERRITE CORE ZCAT2032-930 2pcs.
FERRITE CORE ZCAT1518-0730 1pc. FERRITE CORE ZCAT1518-0730 1pc.
Core position change Core position change
FERRITE CORE ZCAT2032-930 1pc. FERRITE CORE ZCAT2032-930 1pc.
Class B Model Class B Model
The white accessory core (ESD-R-19)
The white accessory core (ESD-R-19)
and the black core (SFT-72SN-O23K) and the black core (SFT-72SN-O23K)
located on the AC connector shall be located on the AC connector shall be
separated from each other with the separated from each other with the
boundary of Clamper (3). boundary of Clamper (3).
The white accessory core (ESD-R-19) The white accessory core (ESD-R-19)
shall be separated from the AC power shall be separated from the AC power
supply beyond the clamper. supply beyond the clamper.
(Core position change) (Core position change)
Pass PW.
Pass RS.
Pass PW.
Pass RS
and PW.
x3
Pass PA,AU and SW.
Pass PW.
Pass AU.
Pass PA.
Pass AU.
Pass SW.
Pass 2 turns
of AU.
Pass 2 turns of PA only.
Pass 3 turns of GND.
Pass GND and AC.
x2 Pass TS.
x2
Pass TR and FAN.
Pass GND,AC and SW.
x5 Pass TS and SW.
Fix the AC with
Wound Lug
Pass the SW through
the groove.
Fix the surplus
part of SW.
It is made for a SW cable
not to approach AC INLET.
Pass TS and FAN.
x2 Pass PM,PN and AU.
Pass PM and PN only.
Pass PA,AU and SW.
x2 Pass PV and AU.
x2
Pass
PH/PD.
x2
Pass PH and PD.
Pass TM,TR
and FAN.
Pass 2 turns of TM.
Pass PV and AU.
Pass PV only.
Fix the surplus part of Fan together with TM and TR.
Pass PV,TM,FA and FB.
Pass AU.
Pass AU and PV.
Pass PV,TM,FA and FB.
Label side
Pass PM and PN.
Pass AD.
Pass SW and AD.
Fix the AD with
Wound Lug
Fix the surplus part of LD.
(Addition of cores) (Addition of cores)
Pass RS.
(Addition of cores) (Addition of cores)
Pass LD.
(Addition of cores) (Addition of cores)
(2)CLASS B
(Caution)
“Turns” in the illustration below denotes the number of cable turns to be wound
around the ferrite core.
(Example)
3 turns
→
3 turns of a cable wound around.
(Caution)
“Turns” in the illustration below denotes the number of cable turns to be wound
around the ferrite core.
(Example)
3 turns
→
3 turns of a cable wound around.
PX-50XR4 Series (CLASS B) Wiring Diagram
CONFIDENTIAL
7-32