Pa-If Board - Furuno FS-1575 Service Manual

7.2.7 PA-IF Board

05P0864: FS-2575 and FS-5075
05P0864A: FS-1575
The PA-IF board has the same circuit configuration as that of the 05P0864 and
05P0864A type, but 05P0864A is configured by deleting unnecessary parts from it.
These circuits are interface circuits between the T-CPU board and the transmission
blocks on the heatsinks of the PA, DRV, and COMB boards. The PA-IF board is used to
input check signals from the fan switch control circuit, VS detection circuit, and
transmission protection control circuit as well as from the PA, TX-FIL, and DRV boards
to the T-CPU board through three ADCs.
J1
TX FIL COMB
ALC
15V
TX FIL HW VER
ALC
CHK IN VR
IN0 TX FIL: TX FIL HW VER
IN1 PA1 : PA1 HW VER
IN2 PA2 : PA2 HW VER
IN3 DRV : DRV HW VER
IN4 : N.C
IN5 TX FIL : ALC
IN6 TX FIL : CHK IN VR
IN7 COMB : UN BAL
IN0 - 7
U7
ADC128S022CIMT
PAIF ADC DATA
PAIF ADC CLK
PAIF ADC CMD
Fig. 7.2.15 PA-IF Board (05P0864) Block Diagram
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.
J2 J3
PA1 PA2
5V
PA ON
UN BAL
VR PA1
(U2)
(U2)
IC1
TEMP PA1
CHK PA1
VC1
IC1
VR PA1
UN BAL
PA1 HW VER
IN0 PA1 : TEMP PA1
IN1 PA1 : CHK PA1
IN2 PA1 : VC1
IN3 PA1 : IC1
IN4 PA1 : VR PA1
IN5 : N.C
IN6 : VS
IN7 : N.C
VS
IN0 - 7
U4
ADC128S022CIMT
ALC
Not mount
0
R67
MOT
7-33
7.2 Transmission Circuit
J4
DRV
PROTECT
5V
VR PA 1, 2
IC1, 2
DA ON
UN BAL
U2
CR11-15
VR PA2
(U2)
IC2
TEMP PA2
CHK PA2
VC2 TEMP DA
IC2 CHK DA
VR PA2 VR DA
PA2 HW VER DRV HW VER
IN0 PA2 : TEMP PA2
IN1 PA2 : CHK PA2
IN2 PA2 : VC2
IN3 PA2 : IC2
IN4 PA2 : VR PA2
IN5 DRV : TEMP DA
IN6 DRV : CHK DA
IN7 DRV : VR DA
U1
3.3V
IN0 - 7 3.3V
U3
AVR
ADC128S022CIMT
Q6, CR18
VS
5V
AVR
5V
VS2
U6
U5 U5
Vs ADJ.
R3
PA-IF
FS-2575, 5075: 05P0864
J12
J5 J6
DRV
15V
5V
5V 15V
15V
PWR
5V
J7
PWR ON
OVEN 12V
BK 24V P-SW
FAN 24V
J8
FAN
FAN MOTOR
Q1
J9
FAN MOTOR
FAN
J10
SW
TEMP SW
J11