Table of Contents
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N5221A/22A 4-Port Overall Block Diagram
(Includes Options 400-Standard; 401-Configurable Test
Set; 410-Metrology; 4
17-Attenuators; and 419-Bias Tees
Service Guide: N5222-90001
A51
A17 CPU
HARD DISK
DRIVE
A16
POWER
A15 MIDPLANE
SUPPLY
AC LINE IN
A18
Mixer
(1)
1
(2)
2
(3)
3
(4)
4
GPIB
Brick L.O.
Band
A11
A21
A4/A7
A5/A8
Harmonic
Synthesizer Frequency
MA26.5
Synthesizer
Source
Number
(GHz)
Frequency (GHz)
Frequency (GHz)
Frequency (GHz)
0
-
-
-
-
-
1
-
-
-
-
-
2
1
0.01083 to 0.05383
0.01083 to 0.05383
0.010 to 0.053
0.010 to 0.053
3
1
0.06044 to 0.18244
0.06044 to 0.18244
0.053 to 0.175
0.053 to 0.175
4
1
0.18244 to 0.25744
0.18244 to 0.25744
0.175 to 0.250
0.175 to 0.250
5
1
0.25744 to 0.50744
0.25744 to 0.50744
0.250 to 0.500
0.250 to 0.500
6
1
0.50744 to 1.0074
0.50744 to 1.00744
0.500 to 1.000
0.500 to 1.000
7
1
1.0074 to 2.0074
1.00744 to 2.00744
1.000 to 2.000
1.000 to 2.000
8
1
2.0074 to 3.0074
2.00744 to 3.00744
2.000 to 3.000
2.000 to 3.000
9
1
3.0074 to 3.2074
3.00744 to 3.20744
3.000 to 3.200
3.000 to 3.200
10
1
3.2074 to 4.0074
3.20744 to 4.00744
3.200 to 4.000
3.200 to 4.000
11
1
4.0074 to 5.3394
4.00744 to 5.33944
4.000 to 5.332
4.000 to 5.332
12
1
5.3394 to 6.7594
5.33944 to 6.75944
5.332 to 6.752
5.332 to 6.752
13
1
6.7594 to 8.0074
6.75944 to 8.00744
6.752 to 8.000
6.752 to 8.000
14
1
8.0074 to 10.6714
8.00744 to 10.6714
8.000 to 10.664
8.000 to 10.664
15
1
10.6714 to 13.5174
10.6714 to 13.5174
10.664 to 13.510
10.664 to 13.510
16
1
6.7587 to 7.7037
13.5174 to 15.4074
6.755 to 7.700
13.510 to 15.400
17
1
7.7037 to 8.0037
15.4074 to 16.0074
7.700 to 8.000
15.400 to 16.000
18
1
8.0037 to 10.0037
16.0074 to 20.0074
8.000 to 10.000
16.000 to 20.000
19
1
10.0037 to 10.6677
20.0074 to 21.3354
10.000 to 10.664
20.000 to 21.328
20
1
10.6677 to 12.0037
21.3354 to 24.0074
10.664 to 12.000
21.328 to 24.000
21
1
12.0037 to 13.2537
24.0074 to 26.5074
12.000 to 13.250
24.000 to 26.500
50 OHM
LOAD
W47
0.01 - 26.5 GHz
50 OHM
LOAD
W46
3.2 - 19 GHz
A10 FREQUENCY REFERENCE
10 MHz
W68
J3
10 MHz
REF OUT
10 MHz
HIGH ST AB
OCXO
Test Node
Error Description
Assembly
Frequency Band
DAC
8
Unleveled, Source 1, Out 1
A5
Full Range
9
Unleveled, Source 1, Out 2
A5
Full Range
215
10
Unleveled, Source 1 Synthesizer
A4
Full Range
10 MHz
11
Unleveled, Source 2, Out 1
A8
Full Range
W69
10 MHz
J2
REF IN
12
Unleveled, Source 2, Out 2
A8
Full Range
13
Unleveled, Source 2 Synthesizer
A13
Full Range
14
Unleveled, LO Drive
A21
Full Range
15
Unleveled, LO Synthesizer
A11
Full Range
16
Unlocked, Source 1 Synthesizer, Integrator Low
A4
Full Range
17
Unlocked, Source 1 Synthesizer, Integrator High
A19 TEST SET MOTHERBOARD
A4
Full Range
BIAS 1 IN
19
Unlocked, Source 2 Synthesizer, Integrator Low
A13
Full Range
20
Unlocked, Source 2 Synthesizer, Integrator High
A13
Full Range
22
Unlocked, LO Synthesizer, Integrator Low
A11
Full Range
23
Unlocked, LO Synthesizer, Integrator High
A11
Full Range
BIAS 3 IN
29
Unleveled, Source 1, P4
A5
13.5 - 26.5 GHz
30
Unleveled, Source 2, P4
A8
13.5 - 26.5 GHz
BIAS 4 IN
BIAS 2 IN
18 Jun 2013
N5222A_blk_4port
)
A3
A2
DISPLAY
USB BD
A12 SIGNAL PROCESSING
ADC MODULE (SPAM)
USB
HUB
DISPLAY
INVERTER
9 MHz
KEYPAD
PROCESSOR
POWER
FLASH
15 MHz
SPEAKER
9 MHz
A1 FRONT PANEL INTERFACE BOARD
15 MHz
PCI BUS
9 MHz
15 MHz
9 MHz
15 MHz
9 MHz
15 MHz
A14
SYSTEM
POWER BUS
MOTHERBOARD
LOCAL DIGITAL BUS
DITHER
PULSE
NOISE
DRIVE
DIRECT CONNECT
10 MHz REF
A19
HIGH DENSITY DATA BUS
TO A4, A5, A8,
A10, A11, A13
TEST SET
MOTHERBOARD
POWER BUS
LOCAL DIGITAL BUS
MIXED POWER AND CONTROL SIGNALS
FROM THE
A23 TEST SET MOTHERBD
SERIAL TEST BUS NODES
Bx = ACTIVE SOURCE BAND
10 MHz REF
EXT TEST SET DRIVE LO OUT
EXT TEST SET DRIVE RF OUT
A11 13.5 GHz LO SYNTHESIZER
A21 LO MULTIPLIER/AMPLIFIER 26.5 (HMA26.5)
B13,
6.75-8.0 GHz
B15,
10.66-13.51 GHz
2-4 GHz
16-17
20-21
B14-15,
18-21
5.33-6.75 GHz
X2
B11-21
B12,15,
8.0-10.66 GHz
MAIN
X2
20-21
22,23
B14,
1
4.0-5.33 GHz
18-19
B11,14,
Frac-N
18-19
ƒ
Logic
B2-21
3.0-4.0 GHz
B9-10
0.011-13.517 GHz
-10 to +10 dBm
50 MHz
W41
REF
B11-13,
2.0-3.0 GHz
16-17
J1207
J5
B8
15
10 MHz
B6-10
ALC
10 MHz REF
W64
1.0-2.0 GHz
J4
B7
2
50 MHz
B5
B2-4
50 MHz REF
W65
0.5-1.0 GHz
2
J5
250 MHz
B6
W66
J6
LOCAL
DDS
0.25-0.5 GHz
DIGITAL
100 MHz
W67
BUS
B5
10
J7
POWER
B2-4
ƒ
BUS
DDS=Direct Digital Synthesizer
NC
J8
200 Hz
21 1
W46
A13 13.5 GHz SOURCE 2 SYNTHESIZER
A8 26.5 GHz SOURCE (SOURCE 2)
B13,
6.75-8.0 GHz
B15,
10.66-13.51 GHz
2-4 GHz
16-17
20-21
B14-15,
18-21
5.33-6.75 GHz
X2
W45
B11-21
B12,15,
8.0-10.66 GHz
20-21
MAIN
X2
19,20
B14,
18-19
B11,14,
4.0-5.33 GHz
Frac-N
18-19
ƒ
Logic
3
B2-21
3.0-4.0 GHz
0.01-13.51 GHz
B9-10
-10 to +10 dBm
DC BIAS 1 TO A38
50 MHz
W2
B11-13,
J541
REF
2.0-3.0 GHz
16-17
J1207
P1
J5
B8
13
B6-10
ALC
1.0-2.0 GHz
B7
DC BIAS 3 TO A39
2
J542
B5
B2-4
0.5-1.0 GHz
250 MHz
B6
LOCAL
DDS
LOCAL
DC BIAS 4 TO A40
DIGITAL
0.25-0.5 GHz
DIGITAL BUS
J543
BUS
B5
B2-4
POWER
POWER
BUS
BUS
DDS=Direct Digital Synthesizer
DC BIAS 2 TO A41
J544
A4 13.5 GHz SOURCE 1 SYNTHESIZER
A5 26.5 GHz SOURCE (SOURCE 1)
6.75-8.0 GHz
10.66-13.51 GHz
B13,
B15,
2-4 GHz
16-17
20-21
B14-15,
18-21
B12,15,
5.33-6.75 GHz
X2
8.0-10.66 GHz
B11-21
20-21
MAIN
X2
16,17
B14,
B11,14,
4.0-5.33 GHz
18-19
ƒ
Frac-N
18-19
Logic
3
POWER
BUS
3.0-4.0 GHz
B2-21
0.01-13.51 GHz
TO
B9-10
-10 to +10 dBm
W1
A34 THRU A37,
50 MHz
A42 THRU A49
REF
B11-13,
2.0-3.0 GHz
16-17
J1207
P1
J5
B8
LOCAL
10
DIGITAL BUS
B6-10
ALC
1.0-2.0 GHz
B7
2
B5
B2-4
0.5-1.0 GHz
B6
250 MHz
LOCAL
DDS
LOCAL
0.25-0.5 GHz
DIGITAL BUS
DIGITAL
B5
BUS
POWER
POWER
B2-4
BUS
BUS
DDS=Direct Digital Synthesizer
A20 IF MULTIPLEXER
IF = 0.826 MHz for CW Freq < 53 MHz
IF = 7.438 MHz for CW Freq > 53 MHz
Main IF A
10.7 MHz
P1
PulseA
PULSE
GATES
W59
EXT IF IN A
P3
W51
AUX R4
W60
W52
Main IF B
P201
10.7 MHz
Pulse B
PULSE
GATES
W53
W61
P203
EXT IF IN B
R1
P411
AUX R3
W54
R2
W62
P412
Main IF R
10.7 MHz
R3
Pulse R
PULSE
P413
W63
P403
GATES
EXT IF IN R
W47
R4
P414
Main IF C
P601
10.7 MHz
Pulse C
PULSE
GATES
P603
EXT IF IN C
AUX R2
Main IF D
P801
10.7 MHz
Pulse D
PULSE
GATES
EXT IF IN D
P803
W55
AUX R1
W56
PULSE
MODULATION
LOGIC
W57
SOURCE
PULSE
DRIVE OUT
W58
CAP
20.0-26.5 GHz
A22 SPLITTER
2
B19-21
15.4-20.0 GHz
W43
B16-21
26 GHz
0.011 -
W42
X2
26.507 GHz
B17-18
W44
13.5-15.4 GHz
B16
14
511
13 GHz
B2-15
0.011-13.517 GHz
FROM
A19
J402
P4
20-26.5 GHz
B19-21
30
16-20 GHz
B18
B10-21
X2
B10-21
B10-21
13.5-16 GHz
B16-21
B16-17
ALC
Modulator
B2-21
Pulse
11
0.01-26.5 GHz
Modulator
OUT 1
B10-15
P5
B2-9
B10-21
B2-21
4
12
B2-9
B2-21
ALC
0.01-26.5 GHz
OUT 2
Modulator
P3
3.2 GHz
B2-9
B2-9
P2
P6
ALC
Pulse
Modulator
Modulator
J402
P4
20-26.5 GHz
B19-21
29
16-20 GHz
B18
X2
B10-21
B10-21
B10-21
13.5-16 GHz
B16-17
ALC
B16-21
Modulator
8
B2-21
Pulse
0.01-26.5 GHz
Modulator
OUT 1
B10-15
P5
B2-9
B10-21
B2-21
9
4
B2-9
B2-21
ALC
0.01-26.5 GHz
Modulator
OUT 2
P3
3.2 GHz
B2-9
B2-9
P2
P6
ALC
ALC
Pulse
Pulse
Modulator
Modulator
Modulator
Modulator
OPTION 400 OR 410
TO A23 A
TO A23 A
A23 MIXER BRICK (1)
FROM A29
OPTION 400 OR 410
OPTION 401
70.0 MHz
TO A23 A
A
A
I
R
W97
W14
L
FROM A29
70.0 MHz
OPTION 401, 417, OR 419
OPTION 417
R1
R1
I
R
OR 419
L
A33 REF
W48 (401)
SWITCH
W36
RCVR R1 IN
W88
W37 (417,419)
TO A23 A
70.0 MHz
W30
REF 1
R2
R2
I
R
L
SOURCE OUT
W14
W35
W13
FROM A29
70.0 MHz
B
B
I
R
L
OPTION 400 OR 410
TO A24 C
TO A24 C
FROM A30
OPTION 400 OR 410
OPTION 401
W98
TO A24 C
W18
FROM A30
OPTION 401, 417,
OR 419
W49 (401)
RCVR R3 IN
OPTION 417
W38 (417,419)
OR 419
W30
REF 3
W90
TO A24 C
W17
SOURCE OUT
RECEIVER LO DRIVE
W18
FROM A30
OPTION 400 OR 410
TO A24 D
TO A24 D
FROM A31
OPTION 400 OR 410
A24 MIXER BRICK (2)
OPTION 401
W99
TO A24 D
W22
70.0 MHz
FROM A31
D
I
R
D
OPTION 401, 417,
L
OR 419
W50 (401)
OPTION 417
W39 (417,419)
RCVR R4 IN
OR 419
70.0 MHz
R4
R4
W30
REF 4
I
R
W92
L
W21
SOURCE OUT
TO A24 D
W22
70.0 MHz
R3
R3
FROM A31
I
R
L
70.0 MHz
OPTION 400 OR 410
C
I
R
C
TO A23 B
TO A23 B
L
FROM A32
OPTION 400 OR 410
OPTION 401
W100
TO A23 B
W26
FROM A32
OPTION 401, 417,
OR 419
OPTION 417
RCVR R2 IN
W40
OR 419
W30
REF 2
W94
SOURCE OUT
TO A23 B
W25
W26
FROM A32
OPTION 400
W101
A25 RECEIVER
OPTION 401,
To Port 1
COUPLER
417, OR 419
W30
W11 - (401)
W12 - (401,417)
RECEIVER LO DRIVE
A34 STEP
To Port 1
A38 BIAS
W30
DC BIAS 1
ATTEN
TEE
W71 - (417,419)
W72 - (417,419)
W73 - (419)
W74 - (419)
W97 (400)
0-50 dB
W13 (401,417,419)
OPTION 410
A64 ATTEN
W109
Direct
Connection
to A25
6 dB
W3
W4
OPTION 400
W102
A26 RECEIVER
OPTION 401,
To Port 3
COUPLER
417, OR 419
W30
W15 - (401)
W16 - (401,417)
To Port 3
A35 STEP
W30
A39 BIAS
DC BIAS 3
ATTEN
TEE
W75 - (417,419)
W76 - (417,419)
W77 - (419)
W78 - (419)
W98 (400)
0-50 dB
W17 (401,417,419)
OPTION 410
A65 ATTEN
W110
Direct
Connection
6 dB
to A26
W5
OPTION 400
W103
A27 RECEIVER
OPTION 401,
To Port 4
COUPLER
417, OR 419
W30
W19 - (401)
W20 - (401,417)
To Port 4
A36 STEP
W30
A40 BIAS
DC BIAS 4
ATTEN
TEE
W79 - (417,419)
W80 - (417,419)
W81 - (419)
W82 - (419)
W7
W8
W99 (400)
0-50 dB
W21 (401,417,419)
OPTION 410
A66 ATTEN
W111
Direct
Connection
6 dB
to A27
OPTION 400
W104
A28 RECEIVER
OPTION 401,
To Port 2
COUPLER
417, OR 419
W30
W23 - (401)
W24 - (401,417)
To Port 2
A37 STEP
W30
A41 BIAS
DC BIAS 2
ATTEN
TEE
W83 - (417,419)
W84 - (417,419)
W85 - (419)
W86 - (419)
W100 (400)
0-50 dB
W27 (401)
W9
W10
W25 (417,419)
OPTION 410
A67 ATTEN
W112
Direct
Connection
to A28
6 dB
W105
RCVR A IN
W31
W30
Port 1
CPLR ARM
A42 STEP
ATTEN
W87
RCVR A IN
W30
Port 1
0-50 dB
CPLR ARM
W106
RCVR C IN
W32
W30
Port 3
CPLR ARM
A43 STEP
ATTEN
RCVR C IN
W89
W30
Port 3
0-50 dB
CPLR ARM
W107
W33
RCVR D IN
W30
Port 4
CPLR ARM
A44 STEP
ATTEN
W91
RCVR D IN
W30
Port 4
0-50 dB
CPLR ARM
W108
RCVR B IN
W34
W30
Port 2
CPLR ARM
A45 STEP
ATTEN
W93
RCVR B IN
W30
Port 2
0-50 dB
CPLR ARM
Port 1
SOURCE OUT
W30
CPLR THRU
A29
TEST PORT
COUPLER
PORT 1
W105 (400)
W14 (401,417,419)
Port 3
SOURCE OUT
W30
CPLR THRU
A30
TEST PORT
COUPLER
PORT 3
W106 (400)
W18 (401,417,419)
Port 4
SOURCE OUT
W30
CPLR THRU
A31
TEST PORT
COUPLER
PORT 4
W107 (400)
W22 (401,417,419)
Port 2
SOURCE OUT
W30
CPLR THRU
A32
TEST PORT
COUPLER
PORT 2
W108 (400)
W26 (401,417,419)
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Troubleshooting
