Main Board (02P6269) - Furuno FCV-1200L Service Manual

4.4 MAIN Board (02P6269)

TP16
TP15
TP13
TP14
TP19
TP20
TP21
R126
R125
R127
Test Point
TP Name
TP1 ROMCS
TP2 EKP0 H1
TP3
TP4 TX0 H
TP5 TX1 H
TP6 KP0 H
TP7 DDS2 SCLK
TP8 22.5792MHz
TP9 DDS2 SDATA
TP10 KP2
TP11 KPOM
TP12 LOCAL1 H
TP13 LOCAL 2
TP14 GND
TP15 76.3KHz
TP1
TP11
TP22
TP28
TP24
Figure 4.7 MAIN board (02P6269)
ROM select signal
KP output (H) to EXIF unit
Transmission signal to transmission amplifier (H)
Ditto
KP output (H)
Synchronous clock for data input to DDS (H)
Reference clock for DDS (H)
Frequency data for DDS (H)
Switching signal for DDS (H); High : transmission carrier signal, Low; LOCAL 1
KP output (H) from Gate Array
Local carrier signal (H) for mixer 1 of receiver circuit
Local carrier signal for mixer 2 of receiver circuit (235.2 kHz)
0 V
Clocks
TP3
TP26
TP25
TP27
TP30
Functions
23
TP2
CR2
TP5
TP4
TP6
CR3
TP12
TP8
TP10
TP9
TP7
TP18
TP17
CR11
TP23
CR12
TP29
CR15
TP31
TP35
CR16
TP34
TP33
TP32