IC-910H Service manual - n7tgb

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UX-910 ADJUSTMENTS (continued) ADJUSTMENT APC (POWER SET) 1 2 3 4 5 ADJUSTMENT CONDITION • Display frequency: 1270.0000 MHz • Mode : CW • Connect an SSG to the check point CP311 and set as : Frequency : 10.8500 MHz • Transmitting • Transmitting • Transmitting • Transmitting • Transmitting *This output level of a standard signal generator (SSG) is indicated as SSG’s open circuit. ADJUSTMENT MEASUREMENT VALUE POINT UNIT LOCATION UNIT ADJUST Rear panel MAIN (UX-910) Rear panel MAIN (UX-910) Connect an RF power meter to [12 ANT]. Connect a digital multimeter or oscilloscope to check point CP15. Connect an RF power meter to [12 ANT]. Connect a digital multimeter or oscilloscope to check point CP401. Connect a digital multimeter or oscilloscope to check point CP15. 13 W 3.0 V 10.5 W 3.1 V 3.0 V MAIN (UX-910) MAIN (UX-910) MAIN (UX-910) Adjust SSG’s level R37 Adjust SSG’s level R67 R61 5 - 20
R67 APC adjustment CP401 APC check point CP15 APC check point R37 APC adjustment R61 APC adjustment CP311 Pre-setting for APC adjustment 5 - 21
Page 1 and 2: SERVICE MANUAL VHF/UHF ALL MODE TRA
Page 3 and 4: TABLE OF CONTENTS SECTION 1 SPECIFI
Page 5 and 6: ■ RECEIVER • Receive system : V
Page 7 and 8: • PA UNIT TX/RX switching relay (
Page 9 and 10: SECTION 3 DISASSEMBLY AND OPTION IN
Page 11 and 12: • UT-102 VOICE SYNTHESIZER UNIT q
Page 13 and 14: SECTION 4 CIRCUIT DESCRIPTION 4-1 R
Page 15 and 16: 4-1-11 NOISE BLANKER CIRCUIT (MAIN
Page 17 and 18: low-pass filter and UHF signal are
Page 19 and 20: SECTION 5 ADJUSTMENT PROCEDURES 4-1
Page 21 and 22: • PLL AND MAIN UNITS R570 30.2 MH
Page 23 and 24: • PA UNIT 144M receiver peak/gain
Page 25 and 26: • PA UNIT 430M peak adjustment fo
Page 27 and 28: • PA UNIT P501 RF peak pre-settin
Page 29 and 30: • MAIN UNIT R202 Drive level adju
Page 31 and 32: SOFTWARE ADJUSTMENT (continued) ADJ
Page 37: CP321 Idling check point CP322 Idli
Page 41 and 42: [DISPLAY BOARD] REF ORDER NO. NO. D
Page 43 and 44: [RIT BOARD] REF ORDER NO. NO. R2 72
Page 45 and 46: [PLL UNIT] REF ORDER NO. NO. DESCRI
Page 47 and 48: [PLL UNIT] REF ORDER NO. NO. DESCRI
Page 49 and 50: [MAIN UNIT] REF NO. ORDER NO. DESCR
Page 53 and 54: [MAIN UNIT] REF ORDER NO. NO. DESCR
Page 57 and 58: [PA UNIT] REF NO. ORDER NO. DESCRIP
Page 59 and 60: [PA UNIT] REF ORDER NO. NO. DESCRIP
Page 65 and 66: [MAIN UNIT] — UX-910 REF NO. ORDE
Page 67 and 68: [MAIN UNIT] — UX-910 REF ORDER NO
Page 69 and 70: [MAIN UNIT] — UX-910 REF ORDER NO
Page 71 and 72: [PA UNIT] REF. NO. ORDER NO. DESCRI
Page 73 and 74: 2SK2855 2SK2973 2SK2975 3SK131 T2 L
Page 75 and 76: SECTION 9 9-1 VR-A BOARD • TOP VI
Page 77 and 78: 1-1-32, Kamiminami, Hirano-ku, Osak

IC-910H Service manual - n7tgb

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