Pa Board: 05P0868 (Fs-1575) - Furuno FS-1575 Service Manual

5. PA board: 05P0868 (FS-1575)

T5: CHK PA
J3: RF OUT
CONFIDENTIAL (internal use only)
This confidential document is used only by FURUNO authorized persons.
It is strictly prohibited to reproduce the document in whole or in part without prior written permission of FURUNO.
Q2, 3 FET: RD16HHF1
Q4, 5 PA TR: SD1407
R79: PA BIAS ADJ.
(24V Vcc -> 400mA)
Fig. 2.5.9 PA board (05P0868) A-side
Fig. 2.5.10 PA board (05P0868) B-side
2-30
Q1 FET: RD16HHF1
R85:
R82:
Vc meter ADJ.
Ic meter ADJ.
2.5 Board
J2: RF IN
R81:Q2, 3 BIAS ADJ.
R80: Q1 BIAS ADJ.
TP1-2: Q1
BIAS Check (75mV)
TP3-4: Q2, 3
BIAS Check (40mV)