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Dec. 2009 SECTION X BOARD LAYOUTS J340 J142 J404 J360 • MAIN UNIT T2LO (TOP VIEW) from the RXPLL-A unit J561 REF IO SCPT to the RXPLL-B to the LOGIC from/to the OSC unit J71 to the SCOPE unit J11 unit J1501 unit J822 RELAY...
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Feb. 2009 SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST ....... . 1 BOARD LAYOUTS .
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Feb. 2009 SECTION 5 PARTS LIST [VR-A BOARD] [VR-C BOARD] ORDER ORDER DESCRIPTION DESCRIPTION LOCATION LOCATION 7210002890 VAR RK161221005J/RV-308 7210003160 VAR RV-317 (RK0972210) 7210002890 VAR RK161221005J/RV-308 7210003160 VAR RV-317 (RK0972210) 7210002890 VAR RK161221005J/RV-308 7030003520 S.RES ERJ3GEYJ 472 V (4.7 k) 28.6/2.7 7210002890 VAR RK161221005J/RV-308...
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Feb. 2009 [SW-A BOARD] [SW-B BOARD] ORDER ORDER DESCRIPTION DESCRIPTION LOCATION LOCATION 7030003400 S.RES ERJ3GEYJ 471 V (470) 8.3/85.5 6510020531 S.CNR 52808-1871 112/20.3 7030003420 S.RES ERJ3GEYJ 681 V (680) 8.3/53.1 7030003400 S.RES ERJ3GEYJ 471 V (470) 8.3/56.1 7030003400 S.RES ERJ3GEYJ 471 V (470) 26.8/42.4 2260002740 S.SW LS8J2M-T...
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Feb. 2009 SECTION X BOARD LAYOUTS T1LO to the MAIN unit J503 R1LO to the RXPLL-A unit J1101 T2LO to the MAIN unit J502 T3LO to the MAIN unit J501 to the MAIN to the MAIN unit J400 unit J401 J561 TO MAIN J502 TO MAIN J400...
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Feb. 2009 S2LO from the RXPLL-B unit J561 S1LO to the RXPLL-B unit J1101 S2LO to the RXPLL-B unit J831 DACK to the MAIN unit J399 TO RXPLL-B J831 TO MAIN J403 J561 J1501 DIFB S2Lo J1701 TO MAIN J404 •...
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Feb 2009 MAIN UNIT (1) BUS LINE1 +15V +15V +15V +15V +15V DSM3MA4 EXCCL3225U +15V DC OUT +3R3V +3R3V +3R3V +3R3V +3R3V +3R3V (MAX 1A) R584 DSM3MA4 S-N5054 S-N5054 R211 10k C210 C221 DSPTHRML -12V 8.89V Q810 100p BLM31PG121SN1 2SC4081 C216 C234 R234...
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Feb 2009 MAIN UNIT (2) BUS LINE1 BUS LINE1 +15V +15V +15V +15V +15V +15V +15V +15V +3R3V +3R3V +3R3V +3R3V +3R3V +3R3V +3R3V +3R3V -12V -12V -12V -12V -12V -12V -12V -12V C561 R566 L517 Q802 14.9V 0.0047 2SB1119 Q803 R576 C574...
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Feb 2009 MAIN UNIT (3) J400 BUS LINE1 +15V +15V +15V +15V L400 HF50ACC322513 +15V +3R3V +3R3V +15V +3R3V -12V -12V -12V L402 HF50ACC322513 -12V -12V +3R3V L401 HF50ACC322513 +3R3V AGCDET_A EP403 AGCOA from/to AGCOUT_A EP404 AGCIA RXPLL-A unit J1701 R400 MDAT R401...
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Feb 2009 DIGISEL UNIT (A) RF OUT RF OUT RF OUT RF OUT RF OUT RF OUT to RXPLL-A unit J1002 Explanatory notes VOLTAGE LINE 0.0047 RX LINE FTR-B4CA012Z +15V +15V C137 120p C128 0.5p C138 100p RL67 RL58 FTR-B4CA012Z FTR-B4CA012Z +15V +15V...
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Feb 2009 DIGISEL UNIT (B) CP502 RF OUT-B RF OUT-B RF OUT-B RF OUT-B RF OUT-B J501 to RXPLL-B RF OUT-B RF OUT-B unit J1002 CP501 Explanatory notes C535 VOLTAGE LINE 0.0047 RL502 RX LINE FTR-B4CA012Z +15V +15V CP504 C637 120p C628 0.5p...
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Feb 2009 OSC UNIT S10M to RXPLL-B unit J10 0.0047 -0.6dBm 2SC4081 0.0047 to RXPLL-A M10M unit J10 0.0047 0.0047 RL11 FTR-B4CA012Z DTC114EU 5.00V 10.21V 2SC4215 CR-772. IC10 12.02V 2SC4081 REF V BA12FP HF50ACC322513 3.3k 5.00V DTC114EU DTC114EU 2SC4081 LS-476 LS-476 RL10 FTR-B4CA012Z...
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Aug. 2008 SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST ....... . 1 BOARD LAYOUTS .
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Aug. 2008 SECTION 5 PARTS LIST [REPLACEMENT UNITS] [VR-C BOARD] ORDER NO. UNIT NAME ORDER DESCRIPTION LOCATION 0325900101 U 7800 BPF 7210003160 VAR RV-317 (RK0972210) 0325900102 U 7800 RXPLL-A 7210003160 VAR RV-317 (RK0972210) 0325900103 U 7800 RXPLL-B 7030003520 S.RES ERJ3GEYJ 472 V (4.7 k) 28.6/2.7 7030003520 S.RES ERJ3GEYJ 472 V (4.7 k) 27.8/8.4...
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Aug. 2008 [SW-A BOARD] [SW-B BOARD] ORDER ORDER DESCRIPTION DESCRIPTION LOCATION LOCATION 7030003400 S.RES ERJ3GEYJ 471 V (470) 8.3/85.5 6510020531 S.CNR 52808-1871 112/20.3 7030003420 S.RES ERJ3GEYJ 681 V (680) 8.3/53.1 7030003400 S.RES ERJ3GEYJ 471 V (470) 8.3/56.1 7030003400 S.RES ERJ3GEYJ 471 V (470) 26.8/42.4 2260002740 S.SW LS8J2M-T...
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Aug. 2008 [JACK BOARD] [TENKEY BOARD] ORDER ORDER DESCRIPTION DESCRIPTION LOCATION LOCATION 6200003950 S.COL HF50ACC 322513-T 33/7.8 1130011510 S.IC BU2099FV-E2 37.5/67.3 6200003950 S.COL HF50ACC 322513-T 23.5/2.7 1130011510 S.IC BU2099FV-E2 33.5/31.8 6200003950 S.COL HF50ACC 322513-T 16.2/2 6180000900 COL LAL 03NA 101K 6180000900 COL LAL 03NA 101K 7030003480 S.RES ERJ3GEYJ 222 V (2.2 k)
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Aug. 2008 [PBT1 BOARD] [DISPLAY BOARD] ORDER ORDER DESCRIPTION DESCRIPTION LOCATION LOCATION 7210003180 VAR RV-319 (RK0972210) 1130009640 S.IC BU4051BCFV-E2 121.9/76.4 7030003520 S.RES ERJ3GEYJ 472 V (4.7 k) 13.5/6.5 1130009640 S.IC BU4051BCFV-E2 110.5/10.9 7030003520 S.RES ERJ3GEYJ 472 V (4.7 k) 13.5/10 1130009640 S.IC BU4051BCFV-E2 76.7/20...
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Aug. 2008 [DISPLAY BOARD] [DISPLAY BOARD] ORDER ORDER DESCRIPTION DESCRIPTION LOCATION LOCATION R254 7030003680 S.RES ERJ3GEYJ 104 V (100 k) 48.4/13.3 R501 7030003640 S.RES ERJ3GEYJ 473 V (47 k) 68.5/16.9 R255 7030003640 S.RES ERJ3GEYJ 473 V (47 k) 12.6/14.1 R502 7030003640 S.RES ERJ3GEYJ 473 V (47 k) 67.2/16.9 R256...
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Aug. 2008 SECTION X BOARD LAYOUTS J340 J404 J360 J142 T2LO from the RXPLL-A unit J561 SCPT to the RXPLL-B to the LOGIC REF IO to the SCOPE unit J11 from/to the OSC unit J71 unit J1501 unit J822 RELAY to the DSP-A board J960 to the DSP-B board J960 EXT-SP...
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Aug. 2008 SW-C BOARD PBT1 BOARD PBT2 BOARD PBT2 BOARD PBT1 BOARD SW-C BOARD 3.30V 3.30V MAIN FILTER 0.00V MAIN DIGISEL 0.00V turn left turn right turn left turn right SUB FILTER 0.802V SUB DIGISEL 0.805V MAIN PBT 1.667V MAIN APF/TPF 1.658V 3.3V 3.3V...
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Aug. 2008 LOGIC UNIT AND MEMORY BOARD LOGIC UNIT (1) VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD1R5 VDD1R5 VDD1R5 VDD1R5 VDD1R5 BUS LINE1 3.17V 1 30 1 30 1 40 1 40 VDD3R3 VDD3R3 VDD3R3 VDD3R3 BUS LINE2 VDD3R3 VDD3R3 VDD3R3...
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Aug. 2008 LOGIC UNIT (2) VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD1R5 VDD1R5 VDD1R5 VDD1R5 VDD1R5 VDD1R5 VDD1R5 BUS LINE1 BUS LINE1 PLL_ENABLEN# PLL_ENABLEN# PLL_ENABLEN# R350 BUS LINE2 AUD_CLK AUD_CLK C250 22p C251 22p IC201 IC202 C252 8p EP203 MT48LC16M16A2TG MT48LC16M16A2TG VDD3R3...
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Aug. 2008 DSP-TX BOARD DSP-TX BOARD D3R3VL D3R3VL D3R3VL AFIN AFIN AFIN AFIN AFIN J921 R304 100 A15V A15V A15V A15V R341 AFIN R903 R804 R874 ANVOX R401 R412 V+ IC301 V+ IC341 4.7k 4.7k 1.2mV NJM5534MD NJM5534MD V+ IC801 IC871 2.27V R344...
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Aug. 2008 SCOPE UNIT SCOPE UNIT (1) MESUREMENT CONDITIONS voltage at RX(no instruction) Explanatory notes frequency: 14.1 MHz DTC114EU mode: J3E(USB) MAIN VOLTAGE LINE ANT(RX): no input 6.46V 0.0V C35 0.01 (TX): no modulation from RXPLL-A SCPA SCPA 0.0V 6.47V SCOPE ATT: 0dB 0.0V 5.68V...
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Aug. 2008 SCOPE UNIT (2) 3.03V L722 L721 3R3V 1.28V R721 R720 MESUREMENT CONDITIONS Explanatory notes voltage at RX(no instruction) frequency: 14.1 MHz mode: J3E(USB) VOLTAGE LINE ANT(RX): no input (TX): no modulation C727 Q720 SCOPE ATT: 0dB 2SC4406 2.88V Digital tester 0.0047 range: input impedance...
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Aug. 2008 DIGISEL UNIT DIGISEL UNIT (A) RF OUT RF OUT RF OUT RF OUT RF OUT RF OUT to RXPLL-A unit J1002 Explanatory notes VOLTAGE LINE 0.0047 RX LINE FTR-B4CA012Z +15V +15V C137 120p C128 0.5p C138 100p RL67 RL58 FTR-B4CA012Z FTR-B4CA012Z...
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Aug. 2008 DIGISEL UNIT (B) CP502 RF OUT-B RF OUT-B RF OUT-B RF OUT-B RF OUT-B J501 RF OUT-B RF OUT-B to RXPLL-B unit J1002 CP501 Explanatory notes C535 VOLTAGE LINE 0.0047 RL502 RX LINE FTR-B4CA012Z +15V +15V CP504 C637 120p C628 0.5p...
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Aug. 2008 OSC UNIT OSC UNIT to RXPLL-B S10M unit J10 0.0047 -0.6dBm 2SC4081 0.0047 M10M to RXPLL-A unit J10 0.0047 0.0047 RL11 FTR-B4CA012Z DTC114EU 5.00V 10.21V 2SC4215 CR-772. IC10 12.02V 2SC4081 REF V BA12FP HF50ACC322513 3.3k 5.00V DTC114EU DTC114EU 2SC4081 LS-476 LS-476...
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Aug. 2008 ANT-SW UNIT FILTER UNIT ANT-SW UNIT Explanatory notes FILTER UNIT VOLTAGE LINE TX LINE ANT1G ANT1G CP51 L804 L803 L802 50MHz from/to CTRL TX/RX-A signal J901 J904 to CTRL CTIN CTIN from PA200W LA-589 LA-590 board J301 LA-253 ANT1 LA-589 board J101...
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Aug. 2008 BPF UNIT BPF UNIT (1) BUS LINE1 J101 to DIGISEL HF OUT-A unit J2 +15V +15V +15V +15V +15V +15V +15V +15V +15V L231 +15V +15V R351 R354 +15V +15V +15V L234 C241 C245 L236 LR-456 LR-456 4.12V HF50A ATT12A ATT12A...
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Aug. 2008 NETWORK BOARD BPF UNIT (2) BUS LINE1 NETWORK BOARD 3.25V Explanatory notes RL40 +15V BPOE VS-12MBU VOLTAGE LINE VHDWA R907 VHDWIA BPCKA R141 BPCKA TUIN TUIN from/to CTRL VPR2A R906 VPR2IA BPSTA R142 BPSTA board J251 TX LINE R101 BI0A BPDAT...
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Aug. 2008 DC-DC UNIT FRONT SW ON: 1.92V DC-DC UNIT OFF: 0V LG_PWR LG_PWR LG_PWR LG_PWR -12V -12V -12V LG_PWR +15V LG_PWR +15V +15V +15V +15V C15V C15V to LOGIC +15V C15V C15V C15V unit J820 C15V RL142 AW3023 REG unit +3R3V 15.1V NC 1...
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Jul. 2008 SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST ....... . 1 BOARD LAYOUTS .
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Jul. 2008 SECTION 5 PARTS LIST [REPLACEMENT UNITS] [VR-C BOARD] ORDER NO. UNIT NAME ORDER DESCRIPTION LOCATION 0325900101 U 7800 BPF 7210003160 VAR RV-317 (RK0972210) 0325900102 U 7800 RXPLL-A 7210003160 VAR RV-317 (RK0972210) 0325900103 U 7800 RXPLL-B 7030003520 S.RES ERJ3GEYJ 472 V (4.7 k) 28.6/2.7 7030003520 S.RES ERJ3GEYJ 472 V (4.7 k) 27.8/8.4...
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Jul. 2008 [SW-A BOARD] [SW-B BOARD] ORDER ORDER DESCRIPTION DESCRIPTION LOCATION LOCATION 7030003400 S.RES ERJ3GEYJ 471 V (470) 8.3/85.5 6510020531 S.CNR 52808-1871 112/20.3 7030003420 S.RES ERJ3GEYJ 681 V (680) 8.3/53.1 7030003400 S.RES ERJ3GEYJ 471 V (470) 8.3/56.1 7030003400 S.RES ERJ3GEYJ 471 V (470) 26.8/42.4 2260002740 S.SW LS8J2M-T...
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Aug. 2008 SECTION X BOARD LAYOUTS J340 J142 J404 J360 T2LO from the RXPLL-A unit J561 SCPT to the RXPLL-B to the LOGIC REF IO to the SCOPE unit J11 from/to the OSC unit J71 unit J1501 unit J822 RELAY to the DSP-A board J960 to the DSP-B board J960 EXT-SP...
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Jul. 2008 SW-C BOARD PBT1 BOARD PBT2 BOARD PBT2 BOARD PBT1 BOARD SW-C BOARD 3.30V 3.30V MAIN FILTER 0.00V MAIN DIGISEL 0.00V turn left turn right turn left turn right SUB FILTER 0.802V SUB DIGISEL 0.805V MAIN PBT 1.667V MAIN APF/TPF 1.658V 3.3V 3.3V...
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Jul. 2008 LOGIC UNIT AND MEMORY BOARD LOGIC UNIT (1) VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD3R3 VDD1R5 VDD1R5 VDD1R5 VDD1R5 VDD1R5 BUS LINE1 3.17V 1 30 1 30 1 40 1 40 VDD3R3 VDD3R3 VDD3R3 VDD3R3 BUS LINE2 VDD3R3 VDD3R3 VDD3R3...
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Jul. 2008 DSP-TX BOARD DSP-TX BOARD D3R3VL D3R3VL D3R3VL AFIN AFIN AFIN AFIN AFIN J921 R304 100 A15V A15V A15V A15V R341 AFIN R903 R804 R874 ANVOX R401 R412 V+ IC301 V+ IC341 4.7k 4.7k 1.2mV NJM5534MD NJM5534MD V+ IC801 IC871 2.27V R344...
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Jul. 2008 SCOPE UNIT SCOPE UNIT (1) MESUREMENT CONDITIONS voltage at RX(no instruction) Explanatory notes frequency: 14.1 MHz DTC114EU mode: J3E(USB) MAIN VOLTAGE LINE ANT(RX): no input 6.46V 0.0V C35 0.01 (TX): no modulation from RXPLL-A SCPA SCPA 0.0V 6.47V SCOPE ATT: 0dB 0.0V 5.68V...
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Jul. 2008 SCOPE UNIT (2) 3.03V L722 L721 3R3V 1.28V R721 R720 MESUREMENT CONDITIONS Explanatory notes voltage at RX(no instruction) frequency: 14.1 MHz mode: J3E(USB) VOLTAGE LINE ANT(RX): no input (TX): no modulation C727 Q720 SCOPE ATT: 0dB 2SC4406 2.88V Digital tester 0.0047 range: input impedance...
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Jul. 2008 DIGISEL UNIT DIGISEL UNIT (A) RF OUT RF OUT RF OUT RF OUT RF OUT RF OUT to RXPLL-A unit J1002 Explanatory notes VOLTAGE LINE 0.0047 RX LINE FTR-B4CA012Z +15V +15V C137 120p C128 0.5p C138 100p RL67 RL58 FTR-B4CA012Z FTR-B4CA012Z...
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Jul. 2008 DIGISEL UNIT (B) CP502 RF OUT-B RF OUT-B RF OUT-B RF OUT-B RF OUT-B J501 RF OUT-B RF OUT-B to RXPLL-B unit J1002 CP501 Explanatory notes C535 VOLTAGE LINE 0.0047 RL502 RX LINE FTR-B4CA012Z +15V +15V CP504 C637 120p C628 0.5p...
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Jul. 2008 OSC UNIT OSC UNIT to RXPLL-B S10M unit J10 0.0047 -0.6dBm 2SC4081 0.0047 M10M to RXPLL-A unit J10 0.0047 0.0047 RL11 FTR-B4CA012Z DTC114EU 5.00V 10.21V 2SC4215 CR-772. IC10 12.02V 2SC4081 REF V BA12FP HF50ACC322513 3.3k 5.00V DTC114EU DTC114EU 2SC4081 LS-476 LS-476...
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Jul. 2008 ANT-SW UNIT FILTER UNIT ANT-SW UNIT Explanatory notes FILTER UNIT VOLTAGE LINE TX LINE ANT1G ANT1G CP51 L804 L803 L802 50MHz from/to CTRL TX/RX-A signal J901 J904 to CTRL CTIN CTIN from PA200W LA-589 LA-590 board J301 LA-253 ANT1 LA-589 board J101...
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Jul. 2008 BPF UNIT BPF UNIT (1) BUS LINE1 J101 to DIGISEL HF OUT-A unit J2 +15V +15V +15V +15V +15V +15V +15V +15V +15V L231 +15V +15V R351 R354 +15V +15V +15V L234 C241 C245 L236 LR-456 LR-456 4.12V HF50A ATT12A ATT12A...
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Jul. 2008 NETWORK BOARD BPF UNIT (2) BUS LINE1 NETWORK BOARD 3.25V Explanatory notes RL40 +15V BPOE VS-12MBU VOLTAGE LINE VHDWA R907 VHDWIA BPCKA R141 BPCKA TUIN TUIN from/to CTRL VPR2A R906 VPR2IA BPSTA R142 BPSTA board J251 TX LINE R101 BI0A BPDAT...
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Jul. 2008 DC-DC UNIT FRONT SW ON: 1.92V DC-DC UNIT OFF: 0V LG_PWR LG_PWR LG_PWR LG_PWR -12V -12V -12V LG_PWR +15V LG_PWR +15V +15V +15V +15V C15V C15V to LOGIC +15V C15V C15V C15V unit J820 C15V RL142 AW3023 REG unit +3R3V 15.1V NC 1...
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SERVICE MANUAL THE TRANSCEIVER i7800 S-14015HZ-C1-2 Mar. 2006...
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8. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver. Icom, Icom Inc. and are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries.
Pre-amp1 is ON * Pre-amp2 is ON • Frequency stability : Less than ±0.05 ppm • Squelch sensitivity : (Pre-amp OFF) (IC-7800’s condition: After 5 min. since SSB/CW/RTTY/PSK31 Less than 5.6 µV turns power ON on the rear panel) Less than 1.0 µV •...
SECTION 2 INSIDE VIEWS 2-1 UPPER SIDE PA200W board REG unit BPF unit FILTER unit ANT-SW unit CTRL board Rear panel TUNER unit Front panel LOGIC unit FRONT unit OSC unit DIGISEL unit DC-DC unit 2-2 LOWER SIDE SCOPE unit MAIN unit RXPLL-B unit Rear panel...
2-3 TOP VIEW PA UNIT ANT-SW UNIT FILTER UNIT TUNER UNIT BPF UNIT DIGISEL UNIT OSC UNIT DC-DC UNIT LOGIC UNIT FRONT UNIT 2-4 BOTTOM VIEW DSP-A BOARD DSP-A BOARD DSP-B BOARD DSP-B BOARD SCOPE UNIT SCOPE UNIT MAIN UNIT MAIN UNIT MAIN UNIT DSP-TX BOARD...
2-5 MAIN UNIT AF power amplifier AF power amplifier (IC140: LA4485) (IC140: LA4485) SQL gate SQL gate (Q100,Q101: 2SJ144) (Q100, Q101: 2SJ144) (IC105,IC180: NJM2172V) (IC105, IC180: NJM2172V) AF selection circuit AF selection circuit (IC100,IC101: TC4W53F) (IC100, IC101: TC4W53F) ACC AF output circuit ACC AF output circuit Head phone amplifier Head phone amplifier...
RF bandpass filters pass only the desired band signals and (BPF, RXPLL-A, AND RXPLL-B UNITS) suppress any undesired band signals. The RF circuit has 11 The IC-7800 has 2 gain levels of pre-amplifier circuits which bandpass filters and 1 low-pass filter. is composed of the pre-amplifier1 and pre-amplifier2. The circuit is controlled by [P.AMP] switch.
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(L1058, L1060, L1062, L1063, C1061, C1062, C1064, 64.455 MHz (main) or 64.555 MHz (sub) 1st IF signal. The C1066, C1070, C1074, R1054), and is then applied to the IC-7800 has four 1st mixer circuits for the dualwatch func- 1st IF circuit. tion.
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3-1-5 1ST IF CIRCUIT The 2nd IF signal from the other 2nd mixer circuit (IC1502, pin 5) is amplified at the buffer amplifier (Q1502), and is then (RXPLL-A AND RXPLL-B UNITS) applied to the 2nd IF amplifier (IC1504, pin 3). The signal is The 1st IF circuit filters and amplifies the 1st IF signal.
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3-1-7 DSP RECEIVER CIRCUIT The converted analog AF signals pass through the low-pass filter (IC601, pins 3, 6, IC651, pins 3, 6), and are then (DSP-A AND DSP-B BOARDS) applied to the buffer amplifier (IC701, pins 2, 3) to convert The DSP (Digital Signal Processor) circuit enables digital IF into unbalancing signals.
3-1-9 AGC CIRCUIT The amplified signals are applied to the RXPLL-B unit via the J1701, pin 9 as “DAGC” line after being passed through (RXPLL-A AND RXPLL-B UNITS AND DSP-A AND the J400, pin 8 on MAIN unit as “AGC1B” line. The applied DSP-B BOARDS) signals are amplified at the AGC amplifier (RXPLL_B unit;...
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The converted analog IF signal passes through the low-pass The filtered signal is applied to the YGR amplifier (Q801), filter (IC601, pins 3, 6, IC651, pins 3, 6), and is then applied and passes through the 3 dB attenuator (R805–R807). The to the IF amplifier (IC701, pins 2, 3) to convert to unbalanc- signal is applied to the power amplifier circuit via the J801.
(CTRL BOARD, LOGIC AND MAIN UNITS) The ALC (Automatic Level Control) circuit controls the gain of IF amplifiers in order for the IC-7800 to output a constant 3-2-13 TEMPERATURE PROTECTION CIRCUIT RF power set by [RF PWR] control even when the supplied (PA200W BOARD) voltage shifts, etc.
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• IN CASE OF USING REFERENCE SIGNAL TO EXTER- The oscillated signal is amplified at the buffer amplifier (Q301), and passes through the high-pass (L331, The oscillated signal is amplified at the buffer amplifier C331–C333) and low-pass (D341, L332, C334–C337) fil- (Q21), and is then applied to the amplifier (Q42).
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(2) RX 2ND LO CIRCUIT The amplified signal from Q151 is applied to the PLL IC’s The signal from the hybrid divider passes through the atten- 1/21 divider section (IC201, pin 8), and is then applied to the uator (R802, R803), and is then applied to the amplifier PLL section.
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• DSP SYSTEM CLOCK CIRCUIT C686–C688) filters to suppress unwanted signals. The fil- tered signal is amplified at the buffer amplifier (Q680), and The 40 MHz reference signal is applied to the amplifier passes through the attenuator (R690–R692). The signal is (IC652) via the “40M”...
• SCOPE UNIT SYSTEM CLOCK CIRCUIT 3-4-3 MOTOR CONTROL CIRCUIT The 40 MHz reference signal is amplified at the buffer ampli- (CTRL BOARD AND TUNER UNIT) fier (Q601) via the “40M” line, and then passes through the The control circuit of the internal antenna tuner consists of low-pass filter (L602, L603, C609–C613).
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3-5 SCOPE CIRCUITS 3-5-3 SWEEP LO CIRCUIT (SCOPE UNIT) The 40 MHz signal is applied to the J3 from the RXPLL-B 3-5-1 SCOPE RECEIVER CIRCUIT (SCOPE UNIT) unit. The signal is used for reference system clock of each A portion of the 64.455 MHz 1st IF signal from the 1st mixer circuits.
(3) DDS LO CIRCUIT The 40 MHz reference system clock is amplified at the amplifiers (Q701, IC602, IC603), and is then applied to the DSP IC (IC601). The applied signal is quintupled in the IC, then uses 200 MHz DSP system clock signal. The 200 MHz clock signal is divided 1/400, and then uses as the 500 kHz sampling frequency of the A/D converter (IC501).
3-7 PORT ALLOCATIONS Port 3-7-1 MAIN CPU2 PORT ALLOCATIONS Description number name (LOGIC UNIT; IC604) DSPCK Outputs clock signal to the DSP IC. Port Description DSPR Outputs data signal to the DSP IC. number name Outputs start signal to the internal 5–9 H8_A0–A4 ISTA...
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Port Description number name Input port for the driving current detect FANI signal at the cooling fan. Input port for the external keypad on EPAD the rear panel. Input port for the data signal from the DX1A DSP IC on the DSP-A board. Input port for the data signal from the DX1B DSP IC on the DSP-B board.
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3-7-2 FRONT CPU (DISPLAY BOARD; IC6) Port Port Description Description number name number name CNTV Outputs LCD contrast control signal. Input port for [F-5]. Outputs LCD brightness control sig- Input port for [F-6]. BRIV nal. Input port for [F-7]. Outputs data signal to the SERI PARA SSBK Input port for [SSB.
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3-7-3 CPDL CPU (LOGIC UNIT; IC605) Port Port Description Description number name number name Outputs strobe signal to the band con- Outputs unlock signal to the DSP-A CSTB troller (CTRL board; IC51; pin 1). board. DULSA High : Unlock. Outputs strobe signals to the relay controllers (CTRL board;...
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3-7-4 MAIN CPU1 (LOGIC UNIT; IC103 ) Port Port Description Description number name number name Input port for the mode signal. 198, RESET, Input ports for the reset signal. TRST Input port for the clock signal. MRESET Input port for the manual reset signal. Input port for the data signal.
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3-7-7 RELAY CONTROLLER (ANT-SW UNIT; IC11) 3-7-8 RELAY CONTROLLER (BPF UNIT; IC101) Port Port Description Description number name number name Outputs the antenna ([ANT 1]) select Outputs the RX-A circuit bandpass fil- ANT1A signal for main band. ter (0.03–1.6 MHz) select signal. Outputs the antenna ([ANT 1]) select Outputs the RX-A circuit bandpass fil- ANT1B...
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3-7-9 RELAY CONTROLLER (BPF UNIT; IC102) 3-7-10 RELAY CONTROLLER (BPF UNIT; IC401) Port Port Description Description number name number name Outputs the RX-A circuit bandpass fil- Outputs the RX-B circuit bandpass fil- ter group select signal. ter (0.03–1.6 MHz) select signal. HF50A Low : While receiving on 30–60 MHz.
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3-7-11 RELAY CONTROLLER (BPF UNIT; IC402) 3-7-14 CONTROLLER IC (DIGISEL-B UNIT; IC504) Port Port Description Description number name number name Outputs the RX-B circuit bandpass fil- X1B, Output the network serial reactance ter group select signal. control signals. HF50B Low : While receiving on 30–60 MHz. Output the network I/O capacitance 8–11 S1B–S4B...
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3-7-18 RELAY CONTROLLER (RXPLL-B UNIT; IC1701) 3-7-20 BUFFER IC (MAIN UNIT; IC291) Port Port Description Description number name number name Outputs the HF band’s pre-amplifier 2 Outputs the transmit signal switching control signal for the RX-B circuit. signal. HFOFB TRVSM High : The pre-amplifiers are OFF.
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3-7-22 BUFFER IC (MAIN UNIT; IC251) 3-7-24 SERIAL/PARAMETER IC (RXPLL-A UNIT; IC1) Port Description number name Port Description number name Outputs the bandpass filter (B7) selecting signal during transmit. Outputs the strobe signals to the 1st TXB7 High : While transmitting PST2A LO PLL IC on the RXPLL-A unit.
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3-7-27 DDS IC (RXPLL-B UNIT; IC101) 3-7-29 D/A CONVERTER IC (MAIN UNIT; IC331) Port Port Description Description number name number name Outputs the 1st LO muting signal to Outputs the AF gain control signal for AFGVS1 the RXPLL-B unit. sub band (primary control). MUTB High : While muting.
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3-7-31 CPLD IC (LOGIC UNIT; IC52) 3-7-33 EXPANDER IC (TENKEY BOARD; IC2) Port Port Description Description number name number name 60, 61 Outputs [PBT CLEAR] LED for main 63–68, IMS0–IMS8 Output the matrix/strobe signals. band control signal. MPCD Low : While using the PBT function in main band.
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3-7-34 SERIAL/PARAMETER IC 3-7-35 EXPANDER IC (DISPLAY BOARD; IC1) (DISPLAY BOARD; IC7) Port Description number name Port Description number name Input port for [AGC] control signal for MAGL main band. Outputs [TUNER] LED control signal. TN1D Low : While tuning. Input port for [AGC] control signal for SAGL sub band.
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3-7-38 EXPANDER IC (DISPLAY BOARD; IC4) Port Description number name Input port for [CLEAR], [DUAL WATCH] and [SPLIT]. Input port for both main and sub bands [APF/TPF]. Input port for both main and sub bands [FILTER] and [PBT CLEAR]. Input port for both main and sub bands [NOTCH], [RIT] and [∆TX].
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3-8 IF AND LO FREQUENCIES LIST 3-8-1 MAIN AND SUB 1ST LO FREQUENCIES LIST (FOR RECEIVING) MODE MAIN 1ST LO FREQUENCY (MHz) SUB 1ST LO FREQUENCY (MHz) 64.4865–124.4565 64.5865–124.5565 64.4835–124.4535 64.5835–124.5535 64.4850–124.4550 64.5850–124.5550 RTTY 64.48483–124.45483 64.58483–124.55483 PSK31 64.4850–124.4550 64.5850–124.5550 64.4850–124.4550 64.5850–124.5550 64.4850–124.4550 64.5850–124.5550...
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3-8-5 1ST IF FREQUENCIES LIST (FOR TRANSMITTING) MODE 1ST IF FREQUENCY (MHz) 64.45650 64.45350 64.45500 RTTY 64.45483 PSK31 64.45500 64.45500 64.45500 3-8-6 1ST LO FREQUENCIES LIST (FOR TRANSMITTING) BAND (MHz) LO FREQUENCY (MHz) BAND (MHz) LO FREQUENCY (MHz) 66.2580–66.2800 66.2580–66.2800 66.3625–66.3675 66.3625–66.3675 67.9550–68.0300...
SECTION 4 ADJUSTMENT PROCEDURES 4-1 PREPARATION BEFORE SERVICING ‘ ‘ REQUIRED TEST EQUIPMENT EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE Voltage : 85–265 V Frequency range : 300–3000 Hz AC outlet Audio generator Measuring range : 1–500 mV Measuring range : 250–300 W Frequency range : 1.8–100 MHz...
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4-2 OSC UNIT ADJUSTMENTS ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE UNIT LOCATION UNIT ADJUST • Set the OSC unit to the external ref- Connect an RF volt- Maximum voltage Adjust REFERENCE OUTPUT erence mode on the set mode. meter to J72. repeatedly •...
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• OSC UNIT TOP VIEW • LOCATION Front panel OSC unit (upper side) -Reference output check point -REF IN output check point -REF OUT output check point -REF IN output check point -REF OUT output check point REF OUT output check point Reference output adjustment 4 - 3...
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4-3 RXPLL-A UNIT ADJUSTMENTS ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE UNIT LOCATION UNIT ADJUST • MAIN display frequency Connect an RF volt- Maximum voltage Adjust 40M OUTPUT : 0.030 MHz PLL-A meter CP701 PLL-A repeatedly • Mode : USB (40 MHz).
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• LOCATION • RXPLL-A UNIT TOP VIEW Front panel RXPLL-A unit (lower side) L702 40 M output adjustment L703 CP701 40 M output check point C272 HPL lock voltage C262 check point C252 HPL lock voltage C154 C242 adjustment LPL lock voltage adjustment C232 C222 LPL lock voltage check point...
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(3.0 dBm ±3.0 dB) PLL-A repeatedly • Mode : USB (T2LO). L565, • Receiving L566 Pre-set the IC-7800 as the following Connect a DC volt- 4.5 V ±0.1 V R1101 SENSITIVITY condition. PLL-A meter to CP1102. PLL-A • MAIN display frequency Connect a DC volt- 4.5 V ±0.1 V...
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• RXPLL-A UNIT TOP VIEW • LOCATION Front panel RXPLL-A unit (lower side) 2LO lock voltage check point C546 2LO lock voltage adjustment J561 T2LO output check point L566 T2LO output adjustment L565 L801 R2LO lock voltage L834 adjustment J831 R2LO lock voltage check point L1408 RX sensitivity...
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RXPLL-A UNIT ADJUSTMENTS–Continued ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE UNIT LOCATION UNIT ADJUST IMAGE • MAIN display frequency Rear Connect an AC milli- Minimum audio level Adjust RESPONSE : 14.150 MHz panel volt meter to [EXT SP] PLL-A repeatedly jack with 8 Ω...
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• LOCATION • RXPLL-A UNIT TOP VIEW Front panel RXPLL-A unit (lower side) C1656 Image response R1516 adjustment L1222 RX sensitivity adjustment (50MHz) C1265 IF through adjustment 4 - 9...
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4-4 RXPLL-B UNIT ADJUSTMENTS ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE UNIT LOCATION UNIT ADJUST 40M OUTPUT • Dualwatch : ON Connect an RF volt- Maximum voltage Adjust • SUB display frequency PLL-B meter CP701 PLL-B repeatedly : 60.000 MHz (40 MHz).
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• LOCATION • RXPLL-B UNIT TOP VIEW RXPLL-B unit (lower side) Front panel L702 40 M output adjustment L703 CP701 40 M output check point C272 HPL lock voltage C262 check point C252 HPL lock voltage C154 C242 adjustment LPL lock voltage adjustment C232 C222 LPL lock voltage check point...
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J561 (2LO). (–9.0 dBm ±3.0 dB) PLL-B repeatedly • Mode : USB L565, • Receiving L566 Pre-set the IC-7800 as the following Connect a DC volt- 4.5 V ±0.1 V R1101 SENSITIVITY condition. PLL-B meter to CP1102. PLL-B (HF) •...
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• LOCATION • RXPLL-B UNIT TOP VIEW RXPLL-B unit (lower side) Front panel 2Lo lock voltage check point C546 2LO lock voltage adjustment J561 2LO output check point L566 2LO output adjustment L565 C1656 Image response R1516 adjustment L1408 RX sensitivity L1058 adjustment (HF) R1101...
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RXPLL-B UNIT ADJUSTMENTS–Continued ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE UNIT LOCATION UNIT ADJUST • SUB display frequency Rear Connect an AC milli- Maximum audio level L1222 SENSITIVITY : 50.020 MHz panel volt meter to [EXT SP] PLL-B jack with 8 Ω load. (50 MHz) •...
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• LOCATION • RXPLL-B UNIT TOP VIEW RXPLL-B unit (lower side) Front panel L1222 RX sensitivity adjustment (50MHz) C1265 IF through adjustment (50MHz) 4 - 15...
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4-5 PA200W BOARD ADJUSTMENTS ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE UNIT LOCATION UNIT ADJUST IDLING • Preset R301, R407 and R410 on PA200W Connect a DC amme- 1.0 A higher from the PA200W R301 CURRENT the PA200W unit to max. CCW.* ter between W1 and previous value of the •...
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• LOCATION • PA200W BOARD TOP VIEW PA200W board (upper side) Front panel Idling current R407 R425 adjustment (final) EP501 Idling current check point R426 R410 R301 Idling current Idling current adjustment (final) adjustment (driver) DC ammeter 4 - 17...
4-6 TUNER ADJUSTMENT ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE UNIT LOCATION UNIT ADJUST 1 • Main display frequency CTRL Connect a DC volt- Minimum voltage CTRL C104 DETECTOR : 24.950 MHz meter or oscilloscope • Mode : FM to CP101 (REF). •...
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• LOCATION • CTRL BOARD TOP VIEW CTRL board (upper side) Front panel CP101 SWR detector check point C104 SWR detector adjustment 4 - 19...
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4-7 MAIN UNIT ADJUSTMENTS ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE UNIT LOCATION UNIT ADJUST MAXIMUM • Turn the power OFF MAIN Connect a digital mul- 0.5 V ±0.2 V MAIN OUTPUT • Perform the all reset operation; timeter or oscilloscope push and hold [F-INP] and [MW], to CP82.
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• PA200W BOARD TOP VIEW • LOCATION DC ammeter PA200W board (upper side) MAIN unit (lower side) EP501 Id-APC check point Front panel • MAIN UNIT TOP VIEW L505 Maximum output power adjustment R538 Tx total gain adjustment L512 Maximum output power adjustment C576 Maximum output power adjustment Default adjustment...
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MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDITION VALUE UNIT LOCATION UNIT ADJUST 2.5 V Pre-set the IC-7800 as the following SCOPE Connect a digital volt- SCOPE C824 S3 LO LOCK VOLTAGE condition. meter to CP801. • MAIN display frequency : 14.200 MHz •...
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• LOCATION • SCOPE UNIT TOP VIEW SCOPE unit (lower side) Front panel R416 Scope gain adjustment C824 S3 LO voltage adjustment CP801 S3 LO voltage check point Scope attenuator adjustment Scope adjustment L201 L202 L203 4 - 23...
4-9 SOFTWARE ADJUSTMENTS ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION ENTERING • Enter the adjustment mode: Push [F-2 (REF)], [F-3 (TX)] or [F-4 (RX)] to ADJUST MODE q Turn power OFF. ADJUSTMENT select each adjustment mode. MODE w Terminate [REMOTE] jack with Once entering adjustment mode, use [F-1 (L)] a 2-conductor 3.5(d) mm mini- to return items, [F-2 (M)] to skip items, or [F-3...
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SOFTWARE ADJUSTMENTS–Continued ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION DRIVE LEVEL • Connect an audio generator to Push [F-7 (SET)] to set the DRIVE level and DRIVE [MIC] connector and set as; selects the next adjustment item. Frequency : 1.5 kHz Vd48V Vd METER Push [F-7 (SET)] to set the Vd meter indication Level...
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NOTE: Adjustment the reference frequency at least 5 minutes has been past from the IC-7800’s main power (on the rear panel) is turned After adjustment exiting from the adjustment mode when the transceiver is power OFF.
SECTION 5 PARTS LIST [REPLACEMENT UNITS] [VR-A BOARD] ORDER ORDER NO. UNIT NAME DESCRIPTION LOCATION 0325900101 U 7800 BPF 6510021720 S.CNR 30FLT-SM1-TB 57.6/41.1 0325900102 U 7800 RXPLL-A 6510018921 S.CNR B8B-PH-SM4-TB (LF) (SN) 20/4.5 0325900103 U 7800 RXPLL-B 6510019971 S.CNR 52808-1071 9.5/33.1 0325900104 U 7800 FILTER...
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[REG UNIT] [ACCESSORIES] REF. ORDER REF. ORDER DESCRIPTION QTY. DESCRIPTION QTY. 6910016050 REG unit FP2212B [USA] 0800007460 CF card SDCFB-64-101 6910016060 REG unit FP2212C [OTHER] 5210000041 Fuse FGB 2A [BPF UNIT] 8900005250 AC power cable OPC-510 [USA], [KOR] 8900005220 AC power cable OPC-513 [AUS] REF.
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• WIRE CONNECTION INFORMATION WIRE No. CONNECTION1 CONNECTION2 *WIRE No. CONNECTION1 CONNECTION2 REF. No DISPLAY BOARD J203 LOGIC UNIT J805 LOGIC UNIT J826 MAIN UNIT J901 DISPLAY BOARD J3 SW-A BOARD J3 LOGIC UNIT J810 MAIN UNIT J451 W51~65 DISPLAY BOARD J6 VR-A BOARD J1 LOGIC UNIT J815 RXPLL-B UNIT J2...
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• FRONT AND BOTTOM SIDE MP12 (C) MP6 (C) LOGIC UNIT MP125 (C) MP135 (C) MP42 (DC) MEMORY UNIT MP902 (S) MP123 (C) J902 (S) MP3 (ME) MAIN UNIT MP901 (S) J902 (S) MP3 (S) J904 (S) MP1 (C) MP62 (DC) MP122 (DC) J903 (S) MP1 (ME)
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8-2 SW-A BOARD 8-4 SW-C BOARD • TOP VIEW • TOP VIEW MAIN FILTER FILTER VOX/BK-IN MAIN POWER PBT CLEAR PBT CLEAR TRANSMIT MAIN DIGI-SEL DIGI-SEL MONI MAIN TUNER APF/TPF APF/TPF MAIN AGCVR AGCVR NOTCH NOTCH MAIN TIMER ∆TX CLEAR DUAL SPLIT WATCH...
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• BOTTOM VIEW (SW-C BOARD) • BOTTOM VIEW (SW-A BOARD) 3R3V 3R3V SP1A SP1B MIGL KYSL SP2A PWRL DELL SP2B MAGL SAGL MSQL SSQL SNCL SAPL 3R3V PITL MSQL 3R3V MAGL PWRL to the VR-B board J1 to the VR-C board J1 to the PBT2 board J1 MIGL SSQL...
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8-5 VR-A BOARD 8-6 VR-B BOARD 8-7 VR-C BOARD • TOP VIEW • TOP VIEW • TOP VIEW KEY SPEED MAIN MIC/ AGC/SQL /DELAY AGC/SQL RF PWR MAIN NB/NR SUB NB/NR MAIN AF/RF SUB AF/RF Horizontal Horizontal Horizontal to the SW-A to the SW-A board J2 board J1...
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• BOTTOM VIEW (VR-C BOARD) • BOTTOM VIEW (VR-B BOARD) • BOTTOM VIEW (VR-A BOARD) MSND SQLS PHNI DSHK DOTK MUDL SAFL SRFL MAFL MRFL SNRL SNBL MNRL MNBL 3R3V to the DISPLAY board J6 PHOM PHOS DASH to the JACK board J1 MICE MSND SQLS...
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• BOTTOM VIEW (PBT1 BOARD) • BOTTOM VIEW (TENKEY BOARD) LDPS MTXD MRXD MLCD SPLD STXD SRXD SLCD to the LED board J1 3R3V MPWK MP1A MPRK MP1B XFCK MP2A MINK MP2B EQRK SUBK CHGK MNCL LDAT MAPL 3R3V LST1 to the PBT1 board J1 LDPS to the DISPLAY board J1...
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8-16 LOGIC UNIT +3R3V +3R3V CE01 +3R3V • TOP VIEW CE00 CE11 CE02 CE10 CE21 CE12 +3R3V +3R3V CE20 CE31 +3R3V CE22 CE30 VPEN CE32 J809 J808 J812 J824 J823 J820 J821 J805 BYTE# to the BPF unit J1 to the DISPLAY board J203 to the MAIN unit J900 to the MAIN unit J940 to the CHASSIS...
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8-18 MAIN UNIT J340 J404 J360 J142 • TOP VIEW T2LO from the RXPLL-A unit J561 REF IO SCPT from/to the OSC unit J71 to the SCOPE unit J11 to the RXPLL-B to the LOGIC unit J1501 unit J822 RELAY S/P DIF S/P DIF EXT-SP...
8-21 SCOPE UNIT Vertical • TOP VIEW J909 RGND GREEN GGND to the LOGIC BLUE unit J803 BGND SGND VSYNC J907 to the LOGIC unit J802 J908 to the LOGIC unit J804 J910 MRXD2# MTXD2 to the LOGIC unit J825 CISEL MRXD1# MTXD1...
8-22 RXPLL-A UNIT T2LO T1LO to the MAIN unit J502 to the MAIN unit J503 • TOP VIEW T3LO R1LO to the RXPLL-A unit J1101 to the MAIN unit J501 to the MAIN to the MAIN unit J400 unit J401 J1501 J1701 MP1653...
8-23 RXPLL-B UNIT S2LO S2LO to the RXPLL-B unit J831 from the RXPLL-B unit J561 • TOP VIEW DACK S1LO to the RXPLL-B unit J1101 to the MAIN unit J399 to the MAIN to the MAIN unit J403 unit J404 J1501 J1701 MP1653...
8-25 OSC UNIT • TOP VIEW M10M to the RXPLL-A unit J10 S10M to the RXPLL-B unit J10 to the LOGIC unit J814 REF IO from the MAIN unit J491 Horizontal 8 - 27...
8-26 ANT-SW UNIT • TOP VIEW RX-ONLY RX-B to the BPF unit J108 to the BPF unit J506 Horizontal TX/RX-A from/to the CTRL board J301 to the FILTER unit J903 8 - 29...
8-28 NETWORK BOARD • TOP VIEW TUIN from/to the CTRL board J251 Horizontal TUOT from/to the CTRL board J252 to the TUNER unit MF3 to the CTRL board J51 8 - 33...
8-29 CTRL BOARD to the NETWORK board J1 to the LOGIC unit J811 • TOP VIEW T15V T15V to the TUNER unit MF1/MF2 to the FILTER unit J905 TX/RX-A from/to the ANT-SW unti J1 TUOT from/to the NETWORK board J3 TUIN from/to the NETWORK board J2 to the FILTER unit J902...
8-30 BPF UNIT • TOP VIEW RX-ONLY from the CTRL board J351 HF OUT-A 6m OUT-A RX-ANT to the DIGISEL unit J2 to the RXPLL-A unit J1201 from the ANT-SW unit J3 RXANT RXANT OUTA X-VERTER RXANT RXANT OUTB Horizontal HF OUT-B 6m OUT-B RX-B...
8-31 PA200W BOARD • TOP VIEW from the MAIN unit J801 to the FILTER unit J901 Horizontal gray PAT8 from the REG unit black THML to the DC-DC to the MAIN unit J5 unit J430 8 - 39...
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• BOTTOM VIEW (PA200W BOARD) PA unit : MP20 PA unit : MP12 PA unit : MP20 Horizontal 8 - 40...
8-32 DC-DC UNIT to the LOGIC unit J820 to the LOGIC unit J821 to the MAIN unit J450 • TOP VIEW to the PA200W board J5 C15V C15V LG_PWR to the REG unit Horizontal 8 - 41...
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FRONT UNIT DISPLAY UNIT LOGIC UNIT IC201/Q203/204 Q201/202 IC204/IC206 IC202/Q209/Q210 TC7SSET08/2SC4081/2SB1201 2SC3647 EDTCB23QAF ADV7123/SN74ACT04 TC7SET08/2SB1201/2SC4081 BRIGHT DC/AC Video INVERT CTRL CTRL MONITOR IC401 CF_BOARD PCI1410APGE IC404 RTL8139C Card CF_CARD BusC EtherC IC403 MAIN DIAL BR93LC46 IC610 FRONT CPU MAIN CPU2 MAIN CPU1 EEPROM HN58X2464...
11-12 SW-C BOARD 11-13 PBT1 BOARD 11-14 PBT2 BOARD PBT2 BOARD PBT1 BOARD 3.30V 3.30V SW-C BOARD MAIN FILTER 0.00V MAIN DIGISEL 0.00V turn left turn right turn left turn right SUB FILTER 0.802V SUB DIGISEL 0.805V 3.3V 3.3V MAIN PBT 1.667V MAIN APF/TPF 1.658V...
11-20 SCOPE UNIT SCOPE UNIT (1) MESUREMENT CONDITIONS Explanatory notes voltage at RX(no instruction) frequency: 14.1 MHz mode: J3E(USB) DTC114EU MAIN VOLTAGE LINE ANT(RX): no input 6.46V 0.0V C35 0.01 (TX): no modulation SCPA SCPA 0.0V 6.47V from RXPLL-A SCOPE ATT: 0dB 0.0V 5.68V unit J1301...
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SCOPE UNIT (2) 3.03V L722 L721 3R3V 10µ 10µ 1.28V R721 R720 MESUREMENT CONDITIONS Explanatory notes voltage at RX(no instruction) frequency: 14.1 MHz mode: J3E(USB) VOLTAGE LINE ANT(RX): no input (TX): no modulation C727 Q720 SCOPE ATT: 0dB Digital tester 0.0047 2SC4406 2.88V...
11-22 DIGISEL UNIT DIGISEL UNIT (A) RF OUT RF OUT RF OUT RF OUT RF OUT RF OUT to RXPLL-A unit J1002 Explanatory notes VOLTAGE LINE 0.0047 RX LINE FTR-B4CA012Z +15V +15V C137 120p C128 0.5p C138 100p RL67 RL58 FTR-B4CA012Z FTR-B4CA012Z +15V...
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DIGISEL UNIT (B) CP502 RF OUT-B RF OUT-B RF OUT-B RF OUT-B RF OUT-B J501 to RXPLL-B RF OUT-B RF OUT-B unit J1002 CP501 Explanatory notes C535 VOLTAGE LINE 0.0047 RL502 RX LINE FTR-B4CA012Z +15V +15V CP504 C637 120p C628 0.5p C638 100p...
11-23 OSC UNIT OSC UNIT to RXPLL-B S10M unit J10 0.0047 -0.6dBm high frequency voltage tester 50Ω terminal 2SC4081 0.0047 to RXPLL-A M10M unit J10 0.0047 0.0047 RL11 FTR-B4CA012Z DTC114EU 5.00V 10.21V 0.68µ 0.82µ 2SC4215 CR-772. IC10 12.02V 2SC4081 REF V BA12FP HF50ACC322513 3.3k...
11-24 ANT-SW UNIT 11-25 FILTER UNIT ANT-SW UNIT Explanatory notes FILTER UNIT VOLTAGE LINE TX LINE ANT1G ANT1G CP51 L804 L803 L802 50MHz from/to CTRL TX/RX-A signal J901 J904 to CTRL from PA200W ANT1 CTIN CTIN board J301 LA-589 LA-589 LA-590 LA-253 board J401...
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