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KX-NT511PRUW, KX-NT511PRUB (serv.man2) - Panasonic PBX Service Manual Supplement (repair manual). Page 16

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16
KX-NT511PRUW/KX-NT511PRUB
1.3.3.  LED Does Not Light
Changed from the Original Service Manual Section 9.6.
Check the soldering.
Resolder or replace parts as needed.
Does SP-PHONE_LED light?
Related parts: IC302,L401,LED406,Q105,
                       R171,R155
No
Yes
Related parts: IC302,LED407,Q105,R172,R156
No
Yes
Does RINGER LED(RED) light?
No
Yes
Does MUTE LED (RED) light?
Does FF1 LED (Function) light?
Related parts: IC302,L401,LED405,Q104,R170,
                       R154
No
Yes
Related parts: IC302,L401,LED401,Q101,R163,
                       R164,R147,R148
END
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