504
Chapter 11, Block Diagrams
Assembly Details
N:\mkt\MANUALS\HP8924C\ALR\blkdia.fb
+12V: J73-2
DEMOD_LO_S
MUX #1
MUX #2
J73-6
SA_ADJ_S
IF_IN_S
+8V_S
+9V_S
LO_SENSE
DSP_IF_S
Q_DEMOD_S
Q_LEAD_I(H)
VtLO
DEMOD_Vt_S
+5_REF_S
Vb_S
TEMP_S
IQ_GAIN_S
4
Serial
Control
Interface
3
To/from Host Controller
J73
DEMOD_OOL
SA Gain Adjust
SA_ADJ_S
IQ Gain Adjust
LO_OOL
J74-17
To Spectrum Analyzer
Splitter
J74-13
IF_IN_S
Div
by N
Phase
Detect.
1 MHz
10 MHz Ref
J72-19
OOL LED
Vt_LO
RF
LO
IF
LO_SENSE
117.9864 MHz
Vb_S
5MHz LPF
23.6 dB Gain
DSP_IF_S
J72-1
3.686 MHz to
3 dB
Receive DSP (A12)
J72-3
3.686 MHz to
3 dB
Optional DSP (A11)
Dual
DAC
IQ_GAIN
IQ_GAIN_S
LO/IF Gain
J72-13
J72-14
ADC
ADC
I_OUT
Q_OUT
IQ
Demodulator
Demod LO
Demod_LO_S
Latched
Buffers
C1
D
4
4
Q_LEAD_I(H)
Q_DEMOD_S
I_DEMOD3
Q_DEMOD3
Q_DEMOD2
Q_DEMOD1
Q_DEMOD0
I_DEMOD2
I_DEMOD1
I_DEMOD0
10
9
12
6
5
8
7
11
J72
Demodulated
I and Q data
CLK
BX Chip Clk
J72-15
Gate Array
Synthesizer
Ref
Control
Phase
Detector
Integrator
UP
Down
OOL LED
DEMOD_Vt_S
Power Supplies and Ground:
J72-2,4,16,17,18,20
J74-1-12, 14-16, 18-20
+5V: J73-4
-12V: J73-3
-5V: J73-7
A3
1 LO/IF DEM
O
D
+9V: J73-1
+9V_S
Voltage
Regulator
+8v
+8V_S
10V Reference
+5V Regulator
+5V - Used throughout
the assembly.
+5_REF_S
Diagnostics Multiplexers
(A3
1-B
D.F
B)
114.3 MHz
IF
IF LO
Demod LO
14.7456 MHz
Div
10
LO/IF_DIAG
5
8
9
Receiver
Summary of Contents for 8924E
Page 52: ...Contents 52 N mkt MANUALS HP8924C ALR 8924CE TOC A Error Messages ...
Page 53: ...Contents 53 N mkt MANUALS HP8924C ALR 8924CE TOC Index 633 ...
Page 54: ...Contents 54 N mkt MANUALS HP8924C ALR 8924CE TOC ...
Page 137: ...137 N mkt MANUALS HP8924C ALR per_adj fb 4 Periodic Adjustments ...
Page 449: ...449 N mkt MANUALS HP8924C ALR service fb 10 Service Screen ...
Page 455: ...455 N mkt MANUALS HP8924C ALR blkdia fb 11 Block Diagrams ...
Page 522: ...522 Chapter 11 Block Diagrams Assembly Details N mkt MANUALS HP8924C ALR blkdia fb ...
Page 613: ...613 N mkt MANUALS HP8924C ALR errmssg fb A Error Messages ...