Furuno CN-24 Service Manual page 40

Test Points Names
TP1 SIG
nd
TP2 2
st
TP3 1
TP4 Analogue GND
TP5 IF output
Jumpers Remarks
Jxx1 See chapter 7
Jxx2
POW Board (01P5737)
TP10
TP1
R28
TP2
TP3
Test Points Names
TP1 130 V
TP2 +15 V
TP3 -15 V
TP4 +12 V
TP5 -12 V
TP6 5 V
TP7 0 V
TP8 -
TP9 Vcc
TP10
Adjusters Names
R28 +90 v ADJ
R50 FREQ ADJ
Functions
Signal output of AMP circuit, maximum voltage;11 Vpp and 9 to 10 kHz
Local 464.5 kHz
Local 505.5 kHz for 50 kHz, 488.5 kHz for 33 kHz, 495.5 kHz for 40 kHz
Q1 Q2
Q3
TP4 TP8
TP5 TP7
Fig. 5.6 POW board
Negative line of Ship's Main
Q5 Q6
Q4
R50
TP8 TP9
5-5
CR12
K1
Q7