Agilent Technologies 8752C, Service Manual, Page: 495 / 510

diagram of HP 8752C, 4-16
diagram of power supply, 5-24
DIF Control, 10-9
DIF Counter, 10-9
digital control
A10 digital IF, 12-11
A16 rear panel, 12-13
A18 display, 12-12
A19 graphics system processor,
12-12
A19 GSP, 12-12
A1 front panel keyboard, 12-10
A2 front panel processor, 12-11
A9 CPU, 12-11
digital signal processor, 12-12
EEPROM, 12-12
main CPU, 12-11
main RAM, 12-11
theory of operation, 12-9
digital control block diagram, 6-3
digital control check, 4-12
digital control lines observed using
L INTCOP as trigger, 8-10
digital control signals A14-to-A13
check, 7-30
digital control signals check, 7-23
digital control signals generated from
A14, 7-31
digital control troubleshooting
chapter, 6-1
digital data lines observed using L
INTCOP as trigger, 8-10
digital IF, 10-36, 12-29
digital control, 12-11
digital voltmeter, 1-3
directional coupler
removal, 14-18
directivity characteristics
type-N test port (50), 2-6
type-N test port (75), 2-7
directivity (E
D
), 11-11
disable shutdown circuitry, 5-16
DISK
not on, not connected, wrong addrs,
10-56
disk drive check, 4-8
disk drive (external) HP-IB address,
4-7
disk (oppy), 1-3
DISK HARDW ARE PROBLEM, 10-56
DISK MESSA GE LENGTH ERROR,
10-56
DISK READ/WRITE ERROR, 10-57
Disp 2 Ex., 10-14
Disp/cpu com., 10-16
display
digital control, 12-12
power, 12-9
removal, 14-16
display bezel
part numbers, 13-26
display degaussing (demagnetizing),
3-45
display intensity adjustments (test
#49), 3-15
display operation check, 6-7
display power supply on A19, 6-13
display tests, 10-3, 10-16
DISPLA Y TESTS, 10-5
DIV FRA C N, 10-28
Divide-by-N Circuit Check, 7-29
DONE, 10-6
DRAM cell, 10-16
DSP ALU, 10-9
DSP Control, 10-10
DSP Intrpt, 10-9
DSP RAM, 10-9
DSP Wr/Rd, 10-9
dual directional coupler, 12-23
Index-7