Symptom: No GAIN, STC, FTC effect.
GAIN can be adjusted.
A/C SEA can be
adjusted.
OK
OK
A/C SEA can be
adjusted.
OK
End
NG
Check voltage at
J101 #15 on SPU
board.
Faulty pcb SPU-9211.
OK
MIN: 0 V
MAX: approx. 4 V
NG
Check voltage at
J101 #15 on SPU
board.
Faulty pcb SPU-9211.
OK
MIN: 0 V
MAX: approx. 4 V
NG
Check voltage at
J101 #14 on SPU
board.
Faulty pcb MAIN-09101.
OK
MIN: 0 V
MAX: approx. 4 V
NG
NG
NG
Faulty Vr1 on KEY-0912 board.
Faulty Vr2 on KEY-0912 board.
Faulty Vr3 on KEY-0912 board.
50
Flow chart 8
Summary of Contents for KR-1338
Page 1: ...KR 1338 1668 KR 1338 1668 SERVICE MANUAL 10 4 TFT COLOR MARINE RADAR...
Page 2: ......
Page 13: ...BLOCK DIAGRAM OF POWER SUPPLY 9...
Page 14: ...BLOCK DIAGRAM OF PROCESSOR PCB MAIN 0910 10...
Page 19: ...BLOCK DIAGRAM OF IF 0711 15...
Page 21: ...BLOCK DIAGRAM OF MODULATOR PCB MOD 0904 17...
Page 25: ...Inside of Display Unit LCD Inside of Display Unit Processor PCB 21...
Page 26: ...Inside of Display Unit Power PCB 22...
Page 56: ...Display Unit Exploded view 52...
Page 58: ...Scanner Unit Exploded View 54...
Page 60: ...56...
Page 61: ...57...
Page 62: ...58 Schematic circuit diagram...
Page 63: ...59...
Page 64: ...60...
Page 65: ...61...
Page 66: ...62...
Page 67: ...63...
Page 68: ...64...
Page 69: ...65...
Page 70: ...66...
Page 71: ......
