Nb Unit - Vertex Standard VX-5500L Service Manual

Circuit Diagram
NB on : 8.7V
NB off : 0V
Parts Layout
Side A
Side B
3.8V
2.8V
8.2V
2.8V
2.1V
2.4V
4.3V
0.6V
MC1350DR2 3SK131 (V12)
(Q6802) (Q6801)
0.6V
3.9V
6.0V
1.1V
0.47V
2SC4116GR (LG) 2SA1586Y (SY)
(Q6803, 6804, (Q6807, 6808)
6805, 6806)

NB Unit

2.6V
8.5V
7.9V
5.1V
8.7V
8.7V
0V
0V
0V
6E-1