File name dr135_235_435ser.pdfDR-135 / DR-235 / DR-435
Service Manual
CONTENTS
SPECIFICATIONS
GENERAL ... 2 TRANSMITTER ... 2 RECEIVER ... 2 Mechanical Parts ... 43 Packing Parts ... 43 ACCESSORIES ... 43 ACCESSORIES(SCREW SET) ... 43 TNC(EJ41U) ... 44 TNC (EJ41U) Packing Parts ... 45
CIRCUIT DESCRIPTION DR-135
1) Receiver System (DR-135) ... 3, 4 2) Transmitter System (DR-135) ... 4, 5 3) PLL Synthesizer Circuit (DR-135) ... 5, 6 4) Receiver System (DR-235) ... 6, 7 5) Transmitter System (DR-235) ... 7, 8 6) PLL Synthesizer Circuit (DR-235) ... 8, 9 7) Receiver System (DR-435) ... 9, 10 8) Transmitter System (DR-435) ... 10 9) PLL Synthesizer Circuit (DR-435) ... 11 10) CPU and Peripheral Circuits(DR-135 DR-235 DR-435) ... 11,12 11) Power Supply Circuit ... 13 12) M3826M8269GP (XA0818) ... 14~16
DR-135 ADJUSTMENT
1) Adjustment Spot ... 46 2) VCO and RX Adjustment Specification ... 47 3) Tx Adjustment Specification ... 47 4) Rx Test Specification ... 48 5) Tx Test Specification ... 49
DR-235 ADJUSTMENT
1) Adjustment Spot ... 50 2) VCO and RX Adjustment Specification ... 51 3) Tx Adjustment Specification ... 51 4) Rx Test Specification ... 52 5) Tx Test Specification ... |