13
MAIN Unit
HX290 Service Manual
Circuit Diagram
RX: 0 V
TX (Hi): 4.35 V
TX (Low): 1.50 V
RX: 3.28 V
TX: 0 V
RX: 0 V
TX: 1.69 V
RX: 0 V
TX (Hi): 0.83 V
TX (Low): 0.35 V
RX: 0 V
TX (Hi): 1.31 V
TX (Low): 0.56 V
RX: 0 V
TX (Hi): 0.42 V
TX (Low): 0.18 V
RX: 0 V
TX: 2.68 V
RX: 0 V
TX: 2.82 V
RX: 0 V
TX (Hi): 0 V
TX (Low): 3.28 V
RX: 0 V
TX (Hi): 2.19 V
TX (Low): 0.76 V
RX: 2.47 V
TX: 0 V
RX: 3.51 V
TX: 0 V
RX: 1.11 V
TX: 0 V
RX: 4.17 V
TX: 0 V
RX: 2.87 V
RX (WX CH): 0 V
TX: 0 V
RX: 0 V
RX (WX CH): 3.29 V
TX: 0 V
RX: 2.54 V
TX: 0 V
RX: 2.34 V
TX: 0 V
RX: 4.69 V
TX: 0 V
RX: 1.00 V
TX: 0 V
RX: 2.83 V
TX: 0 V
RX: 2.10 V
TX: 0 V
RX (SIGNAL: Non): 0 V
RX (SIGNAL: 40 dBµ): 0.31 V
TX: 0 V
RX: 4.85 V
TX: 0 V
RX (SIGNAL: Non): 0 V
RX (SIGNAL: 40 dBµ): 3.30 V
TX: 0 V
RX: 2.16 V
TX: 2.16 V
RX: 3.18 V
TX: 3.18 V
RX: 7.30 V
TX: 0 V
RX (SIGNAL: Non): 0 V
RX (SIGNAL: 40 dBµ): 2.36 V
TX: 0 V
RX: 7.38 V
TX: 7.34 V
RX: 2.58 V
TX: 2.55 V
RX: 3.51 V
TX: 3.47 V
RX: 2.32 V
TX: 2.32 V
RX: 1.87 V
TX: 1.93 V
RX (SAVE "OFF"): 2.77 V
RX (SAVE "ON"): 0 V
TX: 2.77 V
RX: 1.53 V
TX: 1.53 V
RX: 1.60 V
TX: 3.17 V
RX: 2.47 V
TX: 2.47 V
RX: 3.17 V
TX: 3.17 V
RX: 3.28 V
TX: 3.28 V
PLL UNLOCK: 0 V
RX: 5.00 V
TX: 5.00 V
RX: 3.30 V
TX: 3.30 V
RX: 0 V
TX: 4.86 V
RX: 4.90 V
TX: 0 V
RX: 3.29 V
TX: 0 V
RX: 0 V
TX: 3.29 V
RX: 3.00 V
TX: 3.00 V
RX: 1.47 V
TX: 1.47 V
RX: 1.79 V
TX: 1.79 V
BACKLIGHT "ON": 3.29 V
BACKLIGHT "ON": 1.21 V
BACKLIGHT "ON": 1.09 V
BACKLIGHT "ON": 2.97 V
RX: 3.30 V
TX: 0 V
RX: 3.29 V
TX: 3.29 V
RX: 3.23 V
TX: 3.23 V
RX: 3.11 V
TX: 3.11 V
RX: 1.04 V
TX: 1.04 V
RX: 2.08 V
TX: 2.08 V
RX: 5.00 V
TX: 1.78 V
80 mVrms
80 mVrms
80 mVrms
460 mVrms
45 mVrms
220 mVrms
930 mVrms
Summary of Contents for HX290
Page 1: ...1 HX290 Service Manual SERVICE MANUAL VHF FM Marine Transceiver HX290 EM045N90A ...
Page 4: ...4 HX290 Service Manual Note ...
Page 5: ...5 Block Diagram HX290 Service Manual ...
Page 6: ...6 Note HX290 Service Manual ...
Page 12: ...12 HX290 Service Manual Note ...
Page 14: ...14 MAIN Unit HX290 Service Manual Note ...
Page 24: ...24 HX290 Service Manual Note MAIN Unit ...
Page 28: ...28 HX290 Service Manual Note ...
Page 29: ...HX290 Main Unit Circuit Diagram 1 2 3 5 6 7 4 8 ...
Page 30: ...HX290 Main Unit Circuit Diagram 1 2 3 5 6 7 4 8 ...
Page 31: ...HX290 Main Unit Circuit Diagram 1 2 3 5 6 7 4 8 ...
Page 32: ...HX290 Main Unit Circuit Diagram 1 2 3 5 6 7 4 8 ...
Page 33: ...HX290 Main Unit Circuit Diagram 1 2 3 5 6 7 4 8 ...
Page 34: ...HX290 Main Unit Circuit Diagram 1 2 3 5 6 7 4 8 ...
Page 35: ...HX290 Main Unit Circuit Diagram 1 2 3 5 6 7 4 8 ...
Page 36: ...HX290 Main Unit Circuit Diagram 1 2 3 5 6 7 4 8 ...
Page 37: ...HX290 Main Unit Side A Parts Layout 1 2 ...
Page 38: ...HX290 Main Unit Side A Parts Layout 1 2 ...
Page 39: ...HX290 Main Unit Side B Parts Layout 1 2 ...
Page 40: ...HX290 Main Unit Side B Parts Layout 1 2 ...
Page 41: ...29 HX290 Service Manual Note ...