HP 8340b - Page 221

Table
E-l.
Motherboard
Wiring
List
Mnemonic
HADCEN
HCEN
HENDKICK
HFILYO
HINT
HIPMOD DRV
HLBW
HLBO
HLB1
HLB2
HLEY
HLE2
HMRKR
HMTR
HNUP
HOVC
HPLSEN
HPUP
HRFON
HSP
HSTD
HULH
HULM
HULR
HULY
HUL1
HUL2
Description
A.D
C CONVERT
ENABLE
YO
DELAY COMPENSATION ENABLE
YO AND
YTM
KICK PULSE COMPLETE
FILTER YO ENABLE
INTERNAL/EXTERNAL
LEVELING
CONTROL
HIGH
BAND
PULSE MODULATOR DRIVE
ALC
LOOP
BAND
WIDTH
CONTROL
ENCODED BAND INFO BIT 0
ENCODED
BAND
INFO BIT 1
ENCODED BAND INFO BIT 2
LOCK
ENABLE FOR YO
LOOP
LOCK ENABLE TO PLL2
MARKER
ASSERTED
EXTERNAL METER LEVELING CONTROL
NEGATIVE POWER SUPPLIED UP SIGNAL
INTERNAL
10
MHZ STANDARD TEMP
ERROR
PULSE MODULATION ENABLED
POSITIVE POWER SUPPLIES UP SIGNAL
RF
OUTPUT
POWER
ON
SWEEP IN PROGRESS
INTERNAL 10 MHZ STANDARD ENABLE
3.7
GHZ OSCILLATOR UNLOCKED
M/N OSCILLATOR
UNLOCKED
REFERENCE
OSCILLATOR UNLOCKED
YO
2-7
GHZ OSCILLATOR
UNLOCKED
PLL1 OSCILLATOR UNLOCKED
PLL2
OSCILLATOR
UNLOCKED
Type
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
ANALOG
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
ANALDG
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
DIGITAL
Levels
TTL (HIGH TRUE)
TTL
(HIGH
TRUE)
TTL
(HIGH TRUE)
TTL
(HIGH TRUE)
TTL
(HIGH
TRUE)
PIN DIODE
CURRENT
TTL
(HIGH TRUE)
TTL
(HIGH TRUE)
TTL
(HIGH
TRUE)
TTL
(HIGH TRUE)
TTL
(HIGH TRUE)
TTL (HIGH TRUE)
TTL (HIGH TRUE)
TTL
(HIGH
TRUE)
TTL
(HIGH
TRUE)
+3V
-
OVEN
WARM
TTL L(HIGH TRUE)
TTL (HIGH TRUE)
TTL
(HIGH TRUE)
TTL
(HIGH TRUE)
TTL
(HIGH
TRUE)
TTL (HIGH
TRUE)
TTL (HIGH
TRUE)
TTL
(HIGH TRUE)
TTL (HIGH TRUE)
TTL
(HIGH
TRUE)
TTL
(HIGH TRUE)
E-10
Motherboard
Wiring
List
Change
5
HP
8340B/41B