NEC PX-50XM4 series Service Manual page 341

(2)CLASS B
PX-50XR4 Series (CLASS B) Wiring Diagram
PX-50XR4A
PX-50XR4W
PX-50XR4GS
Fix the surplus part of Fan together with TM and TR.
Pass PV,TM,FA and FB.
Pass AU.
Pass AU and PV.
AU PV
TM
Pass AD.
Pass PV,TM,FA and FB.
Pass PM and PN.
AD
AD
Label side
Fix the AD with
Pass SW and AD.
Wound Lug
SW
PW
Pass RS.
RS
(Addition of cores) (Addition of cores)
Pass RS.
(Addition of cores) (Addition of cores)
Pass LD.
LD
(Addition of cores) (Addition of cores) PW
LD
Pass PW.
Fix the surplus part of LD.
PARTS NAME
EDGING SADDLE(EDS-1208U) 29C00461
CLAMPER,WIRE(D11.5)
CLAMP(WS-2W-V0)
CLAMP(MWC-2S)
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.
(Caution) "Turns" in the illustration below denotes the number of cable turns to be wound
(Caution) "Turns" in the illustration below denotes the number of cable turns to be wound
around the ferrite core. (Example) 3 turns
around the ferrite core. (Example) 3 turns
Pass PH and PD.
Pass 2 turns of TM.
TM
Pass PV only.
TR
Pass PV and AU.
Pass TM,TR
and FAN.
x2 Pass PV and AU.
PV
FA
PH PD
FB
PM
PN
PM
PA
Pass PA.
Pass PM and PN only.
x2 Pass PM,PN and AU.
PN AD
Pass PA,AU and SW.
Pass 2 turns of PA only.
RS
Fix the AC with
AC
Wound Lug
Pass RS
and PW.
x3
PA
Pass PA,AU and SW.
AU
Pass PW. Pass AU.
Pass 2 turns
of AU.
Pass AU.
Pass PW.
(Core position change) (Core position change)
PARTS NAME
LUG(L60)
PANTS NO. Q'TY
5 FERRITE CORE ZCAT2032-930
24281251 1 CORE,FERRITE SFT-72SNB
16 FERRITE CORE ESD-R-19
29C01421
29C01401 16 FERRITE CORE ZCAT1518-0730 6S170006
3 turns of a cable wound around.
→
3 turns of a cable wound around.
→
x2
x2
TR
Pass
PH/PD. TS
Pass TS and FAN.
x2
Pass TR and FAN.
x2 Pass TS.
It is made for a SW cable
not to approach AC INLET.
Fix the surplus
Pass GND,AC and SW.
part of SW.
TS
Pass GND and AC.
x5 Pass TS and SW.
Pass the SW through
Pass SW. the groove.
Pass 3 turns of GND.
PANTS NO. Q'TY
29C01471 2
9
6S170005
6S170003 4
1
6S170007
1
7-32
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
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.
Class B Model Class B Model
Addition of cores (3 pcs. in all) Addition of cores (3 pcs. in all)
FERRITE CORE ZCAT2032-930 FERRITE CORE ZCAT2032-930
FERRITE CORE ZCAT1518-0730 1pc. FERRITE CORE ZCAT1518-0730 1pc.
SW
Core position change Core position change
FERRITE CORE ZCAT2032-930 FERRITE CORE ZCAT2032-930
AC INLET
GREEN(GND)
BROWN
BLUE
CONFIDENTIAL
2pcs. 2pcs.
1pc. 1pc.