Agilent Technologies 8510XF Service Quick Reference Manual page 69

HOW TO READ THIS BLOCK DIAGRAM:
THIS DIAGRAM SHOWS A TYPICAL 851OXF SYSTEM
CONFIGURATION. NOTE THAT THE CIRCUIT BOARDS AND
ASSEMBLIES HAVE NUMBERS PRECEDED BY THE LETTER
'A', THAT NUMBER IDENTIFIES THE ASSEMBLY. THE OTHER
NUMBERS REFER TO THE LIST ON SHEET 2.
USE THIS BLOCK DIAGRAM AS A QUICK REFERENCE GUIDE
TO SYSTEM FAILURES AS WELL AS A GUIDE TO LED
LOCATION AND MEANING. TEST SET ADDRESS AND
CONFIGURATION SWITCH SETTINGS ARE ALSO SHOWN.
NUMBERS 1 – 14
THESE NUMBERS IDENTIFY THE SELF TEST THAT
EXERCISES THE PARTICULAR ASSEMBLY, MOSTLY ON THE
85101 DISPLAY/PROCESSOR. FOR MORE INFORMATION,
REFER TO 'SELF' TEST FAILURES IN THE ON – SITE SERVICE
MANUAL.
NUMBERS 15 – 36
THESE NUMBERS IDENTIFY THE BUILT – IN RUNNING
ERROR MESSAGE THAT WILL APPEAR ON THE 8510I CRT IF
A SYSTEM FAILURE IS DETECTED. MOSTLY ON THE 85102
IF/DETECTOR, TEST SET, AND SOURCE. THE NUMBERS
IDENTIFY THE ASSEMBLIES WHERE THE ERROR IS
DETECTED OR GENERATED. FOR MORE INFORMATION,
REFER TO 'RUNNING ERROR MESSAGES' IN THE ON – SITE
SERVICE MANUAL.
NUMBERS 37 – 41
THESE NUMBERS IDENTIFY RUNNING ERROR MESSAGES
ASSOCIATED WITH 8360 – SERIES SOURCES ONLY AND
APPEAR ON THE 85101 CRT.
NUMBERS 42 – 45
THESE ARE EXTRA TROUBLESHOOTING
TEST SET DEFAULT SETTINGS: Option 006.
THE DEFAULT STATE OF THE 8517A/B TEST SETS (TURN
POWER OFF, PULL A4 GPIB BOARD AND TURN POWER
BACK ON) IS TO HAVE ALL SAMPLERS ENABLED, A14'S VTO
BIASED ON, PORT 1 AND 2 ATTENUATORS AT 0dB, AND THE
SWITCH SPLITTER APPLYING RF POWER TO PORT 1.
UNIQUE TOOLS
TORX DRIVER T-10 8710-1623 (For Chassis)
TORX DRIVER T-15 8710-1622 (For Chassis)
ALLEN WRENCH # 6 = 1/16 IN. 5020-0289 (For RPG Knob)
85101C
(Address 16)
IF/Display
Interconnect
85102B
Option 006
Coupled RF Output
MM Wave RF Input
Controller
LO Input
(Address 23)
{
ALC Output
83651B
Source
RF Source
Language SW RF Output
(Address 19)
set to 111
Language 111
to allow EXTALC In
programs
83621B
to select
LO Source RF Output
language.
(Address 18)
Language 111
rr52c
Self Test Indicators for Millimeter Wave Controller GPIB Board
If the ACTIVE LED on the Front Panel does not light within two seconds
of turn on, or lights immediately, the test has not passed it's Self Test.
You can determine what part of the Self Test failed by determining which
GPIB LEDs on the A12 Assembly are lit. The Table below shows the
possible Self Test failures.
Elapsed Time
A12 GPIB LEDs
Self Test
After Turn-On
Indication
LSN (in seconds)
TLK SRQ REM
PWON ON ON ON ON 0 to 0.5
Fail ROM Test OFF ON ON ON ON Briefly
Pass ROM Test OFF OFF ON ON 0.52 to 2.0
Fail RAM Test OFF OFF OFF ON
Pass RAM Test OFF OFF OFF OFF After 2 sec.
Two seconds after turn-on all four GPIB LEDs should go OFF, and the
Front Panel ACTIVE LED should light simultaneously. After going out
briefly, the two GPIB LEDs will light according to the state of the Test
Set. If you are using multiple Test Sets, the first Test Set in line will be
the active Test Set until another is chosen.
If Self Test Fails to Run
If the portion of memory which contains the Self Test programming is faulty,
the Self Test will not run properly. The following conditions indicate that the
Self Test ROMs are faulty:
All LEDs flash briefly and go OFF
All LEDs flash briefly and stay ON
ACTIVE LED goes ON before GPIB LEDs go OUT
ACTIVE LED does not go ON at all (check LED operation before proceeding)
TORQUE WRENCHES
8 in-lbs 20 mm 8710-1764
8 in-lbs 5/16 in 8710-1765
4 in-lbs 6 mm 8710-2079
8510XF
(Rear View)
40103A Rack
Filler Panel
40104A Rack
Filler Panel
10 MHz In
8510C Interconnect
Test Set Interconnect
Trigger In
Test Set IF Interconnect
System Bus
GPIB
10 MHz Ref Input
10 MHz Ref Output
System Bus
GPIB
Trigger Output
GPIB
System Bus
10 MHz Ref Output
40102A Rack
Filler Panel
46298M
Drawer Unit
When changing
A16:
Save EE PROM
from old A16
leveling DAC
83621A/B
board to retain
LO Source calibration
45 MHz to 20 GHz constants.
GPIB System Bus
10 MHz REF
Millimeter
Wave
83651A/B
Controller
RF Source
45 MHz to 50 GHz
Trigger IN
GPIB System Bus
10 MHz REF
Option 005
Regulator Board
9 Power Supply
LEDs for ALL
Power Supplies
IF, 75-110 GHz
Band
+5V LED Front
Panel
Power Switch
IF, 50-75 GHz
Band
IF, 2-50 GHz
Band
LO
1r
IF, 45 MHz-2 GHz
IF L RF
Band
I
R
Option 005
GPIB Board
4 LEDs
IF, 75-110 GHz
Band
IF, 50-75 GHz
Band
IF, 2-50 GHz
Band
LO
1t
IF L RF
IF, 45 MHz-2 GHz
I
R
Band
Option 005
45 MHz to
2 GHz
GPIB System Bus
Test Head ( 1 of 2 )
PREAMP
SLOPE AMP
PREAMP
8-18 dB
50 MHz-
110 MHz
45 MHz-
50 GHz
LO
IF
L
I R
LO
IF L
I
R
LO
2r
IF L RF
Splitter
I
R r
2-50 GHz
<2 GHz
LO
4t
IF
L
I R
LO
IF L
I
R
LO
2t
IF L RF
Splitter
I
R
t
2-50 GHz
<2 GHz
Microwave Subassembly Millimeter Wave Subassembly
Bias Boards and Power +/- 7 Volt ON LED Front Panel
Supply LEDs for all Power Supplies
9
8510XF System Level Troubleshooting Block Diagram (CRT/LCD) (Sheet 1 of 2)
75-110 GHz
X3
50-75 GHz Combiner
X2
Splitter
r
<50 GHz
SLOPE AMP
4r
RF
75-110 GHz
3r
RF
Combiner
Splitter
r
50-75 GHz
RF
(Incident)
reference a1, a2
<50 GHz
DS7 and DS9 LEDs (Yellow)
45 MHz to 50 GHz Both ON DS7 and DS9
50 GHz to 75 GHz DS7 OFF DS9 ON
75 GHz to 110 GHz DS9 OFF DS7 ON
RF
75-110 GHz
RF
(Reflected or
3t Transmitted)
test b1, b2
RF Combiner
Splitter
50-75 GHz t
<50 GHz
Connector - Test Port
*
1mm M/F
(part number
Test Port *
85104 - 60061)
( 1 of 2)
To Sheet 2