Furuno FR-1505 MARK-3 Series Service Manual page 14

Board Name
1) Outputs encoded data of EBL, VRM and trackball signals.
MAIN PNL
2) Includes GAIN, STC, FTC, and BRIL volumes.
Board
3) Reads EBL ON/OFF, VRM ON/OFF, FUNC 1/2/3/4, and Range +/- key data.
03P9220
4) Reads PAL/PAR board status.
KEY PNL Board
1) Includes key switches.
03P9227
1) Supplies Tx high voltage to the antenna unit.
TX-HV Board
HV-9017
2) Contains overcurrent protector.
GYRO
1) Converts gyrocompass signal into AD format signal.
CONVERTER
2) Outputs Max. 6 AD format signal (25 ms or 200 ms jumper selection, select 25
Board
64P1106
1) Outputs -12V, +12V, +115V (for CRT), +5V and +32V (for tuning cont.), and
2) Outputs Power Fail (PF) signal to the RP Board.
PTU Board (AC)
3) Contains overcurrent protector for -12V,+12V, and +115V.
03P9228
4) Contains abnormal input voltage detector.
1) Similar to the AC board.
PTU Board (DC) 2) Abnormal voltage detector Low voltage;
03P9223
Color Monitor
Assy.
1) Daylight-bright raoterscan 15-inch high-resolution display.
QA1510
PM Board
03P9255
1) Power supply circuit for the performance monitor.
optional
ms for radar.).
motor drive voltage.
110 VAC : Low voltage, 60 to 80 VAC; high voltage, 133 to 150 VAC
220 VAC : Low voltage, 130 to 180 VAC; high voltage, 266 to 294 VAC
24/32 VDC sets: 19.0 VDC or less High voltage, 41.7 VDC or more
12 VDC sets: 9.0 VDC or less High voltage, 18.0 VDC or more
Function
2-4