Icom IC-9700 Service Manual Addendum page 60

(Amended page)
June 2019
• MAIN UNIT (8/13)
VFORLP
VFORLP
UFORLP
UFORLP
12FORLP
12FORLP C2504
MAIN UNIT VREFLP
VREFLP
(4/13)
UREFLP
UREFLP 0.22 R2505
12REFLP
12REFLP
IDLP
IDLP
AMS
AMS
NASBS
NASBS
MAIN UNIT ICCV
ICCV
(9/13) POCV
POCV
EALC
EALC
Q2501
RUM002N02
MAIN UNIT
DIDL
DIDL
(8/13)
4.6 V* 1
R2516
VFORLP
POCV R2517
AMS
When the AM mode is selected: 2.8 V
1
4.6 V*
Other than the above: 0 V
C2524
0.22 R2525
18k
Q2521
RUM002N02
4.7 V* 2
UFORLP R2536
POCV R2537
AMS
4.7 V* 2
C2544
0.22 R2545
18K
Q2541
RUM002N02
4.2 V* 3
R2556
12FORLP
R2557
POCV
AMS
4.2 V* 3
C2503 R2502
10P 2.2M
VHF_FOR-ALC (Fast)
R2503
2
R2501 D2501
1
470k
3
470 L1SS400
IC2501
18K
1
NJM13403V 7.0 V*
VHF_FOR-ALC (Slow)
R2514 R2511
R2513 D2511
2.2M 0 2.2k
L1SS400
6 1.0 V* 1
7
100k
5
2.2k
IC2501
NJM13403V
R2519
Q2511
KTC2875
2.7k
Q2512
LDTA114YE
C2523 R2522
8P 2.2M
UHF_FOR-ALC (Fast)
R2523
13 IC2501
R2521 D2521
14
470k
12
470 L1SS400
NJM13403V
7.0 V* 2
UHF_FOR-ALC (Slow)
R2533 R2534 R2531 D2531
2.2M 0 2.2k L1SS400
9 1.1 V* 2
8
100k
10
2.2k IC2501
NJM13403V
R2539
Q2531
KTC2875
2.7k
Q2532
LDTA114YE
C2543 R2542
6P 2.2M
1.2G_FOR-ALC (Fast)
R2543
2
R2541 D2541
1
470K
3
680 L1SS400
IC2541
6.9 V* 3
NJM13403V
1.2G_FOR-ALC (Slow)
R2553 R2554 R2551 D2551
2.2M 0 3.3k L1SS400
6 1.2 V* 3
7
100K
5
2.2k
IC2541
NJM13403V
R2559
Q2551
KTC2875
2.7k
Q2552
LDTA114YE
The underlined parts have been updated from the addendum of the previous version, or from the original page.
The waveform and voltage indications have been added on the original page.
Q2561
LDTC143ZE
R2562
NASBS
3.3M
When the SSB or AM mode is selected: 0 V
Other than the above: 3.1 V
C2566
0.47
R2567
8V
3.3k
R2569 D2567
Q2567 22k
L1SS400
NASBS
LDTC143ZE
When the SSB or AM mode is selected: 2.1 V
Other than the above: 2.0 V
R2572
ID-APC
270k
R2573
IDLP 9
D2571
R2571
8
10k
ICCV 10
470 L1SS400
IC2541
7.0 V
NJM13403V
D2582
VREFLP
L1SS400
D2583 R2582
UREFLP
L1SS400 560k
SWR-APC
D2584
12REFLP R2583 13
R2581 D2581
100k 14
R2587
L1SS400
R2585 12
D2585 100 L1SS400
8V 47k
IC2541
5.6 V
NTCG16
L1SS400 NJM13403V
EXT-ALC
R2593 R2592
8V Q2591
L2SA1576AR
10k 220k
D2593 D2591
EALC
LRB751S DZ2J033M0L
R2623 R2624
R2628
100k 33k
D2621 0
VFORLP 6
R2626
7
L1SS400 R2621
5
D2622 100
UFORLP
10k
IC2621
L1SS400 NJM2904CRB1
D2623
When RX regardless of the band
12FORLP
L1SS400 D2625
L1SS400
R2633 R2634
R2638
0.5 V* 1 0.4 V* 2
47k 100k
D2631 0
VREFLP 2
R2636
1
L1SS400 R2631
3
D2632 100
UREFLP
IC2621
10k
NJM2904CRB1
L1SS400
D2633 R2637
When RX regardless of the band
12REFLP
L1SS400 0
0.4 V* 3
R2652 R2656 R2660
IDLP
100k 100k 100k
R2653
2 R2657 6
DIDL
1 7
100k
100k
R2654
3 R2658 5
100k
100k
IC2651
IC2651
NJM2904CRB1
NJM2904CRB1
When RX regardless of the band
3R3V
HV
10-8a
2
R2603
1
3
100 Q2601
L2SC4081 R2608
IC2601
NJM13403V
10
R2606
270k
6
R2607
7
5
22k
IC2601
C2602
NJM13403V
0.1
C2611
0.001
R2612
3.3M
9
R2613
R2611
1.5M 8 ALCL
R2615
8V R2614 10
100
IC2601
1.8M
68k
NJM13403V
R2617
18k
13
14
12
IC2601
NJM13403V
When RX regardless of the band 2.2 V
The VHF band TX* 1 1.3 V
2
The 430 MHz band TX* 1.4 V
The 1.2 GHz band TX* 3 1.5 V
4
V+
IC2501
GND NJM13403V
11
4
V+ IC2541
GND NJM13403V
11
FORL
4
0 V
V+ IC2601
GND NJM13403V
The VHF band TX* 1 3.1 V
11
The 430 MHz band TX* 2 3.1 V
The 1.2 GHz band TX* 3 2.3 V
REFL
8
0 V
V+ IC2621
GND NJM2904CRB1
The VHF band TX* 1 0.4 V
4
The 430 MHz band TX* 2 0.3 V
The 1.2 GHz band TX* 3 0.3 V
IDL
8
0.2 V
V+ IC2651
GND
The VHF band TX* 1 2.5 V NJM2904CRB1
4
2
The 430 MHz band TX* 2.2 V
The 1.2 GHz band TX* 3 0.7 V
When TX on 145.02 MHz RTTY [Po=100% (100 W)/ANT=50 Ω termination].
* 1
VDL
When TX on 435.02 MHz RTTY [Po=100% (75 W)/ANT=50 Ω termination].
* 2
2.4 V
When TX on 1280.02 MHz RTTY [Po=100% (10 W)/ANT=50 Ω termination].
* 3
* Refer to the PARTS LIST for the value and name of components.
3R3V
MAIN UNIT
HV
(5/13)
8V
ALC ALC MAIN UNIT
ALC
(10/13)
ALCL
ALCL
FORL
FORL
MAIN UNIT
REFL
REFL
(4/13)
IDL
IDL
VDL
VDL
When RX regardless of the band 5.1 V
1
The VHF band TX* 2.5 V
The 430 MHz band TX* 2 2.6 V
The 1.2 GHz band TX* 3 2.9 V
When RX regardless of the band 0.2 V
The VHF band TX* 1 2.3 V
The 430 MHz band TX* 2 2.3 V
The 1.2 GHz band TX* 3 2.0 V
Explanatory notes
Voltage Line (HV)
Voltage Line (8V)