			February 4, 1977HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-1
	               Blowing RF Fuse in Alignment Generator
+ + + + Information not yet available + + + +
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			February 14, 1977HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-2
		                  Low Power Output		
+ + + + Information not yet available + + + +
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			March 7, 1977HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-3
		  Troubleshooting Low Sensitivity+ + + + Information not yet available + + + +
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			March 16, 1977HW-2036							BulletinNo:2-Meter Transceiver 					HW-2036-4
	  	       Synthesizer Lock Instability
+ + + + Information not yet available + + + +
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			March 16, 1977HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-5
	              Power Drops Off When Installed in Case
+ + + + Information not yet available + + + +
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			May 25, 1977HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-6
	 Units Fails to Lock Until 0-5 kHz Switch is Actuated
+ + + + Information not yet available + + + +
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			May 25, 1977HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-7
			Crystal Check+ + + + Information not yet available + + + +
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			July 8, 1977HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-8
		           Improve IF Response+ + + + Information not yet available + + + +
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			July 11, 1977HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-9
	Synth Goes Out of Lock at Anything Over a Low-Listening 			       Level
+ + + + Information not yet available + + + +
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			July 27, 1977HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-10
		Conducted Spurious Modification+ + + + Information not yet available + + + +
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			September 14, 1977HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-11
	                       L201 Tuning Peak at Bottom of Coil
+ + + + Information not yet available + + + +
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			September 21, 1977HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-12
		               Sync Won't Lock, No TX
+ + + + Information not yet available + + + +
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			November 17, 1977HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-13
	               High Internal Spurious Levels in Receiver
+ + + + Information not yet available + + + +
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			March 14, 1978HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-14
	Reduce Receiver Spurs and Reference Tone in Transmit
The following changes are recommended to reduce receiver spurs and
objectionable levels of 833 Hz reference tone in transmit signal.
You maynot notice a significant reduction in the reference tone level if
it is already low.  The "mod" will reduce the objectionable levels
approximately 10 dB.Parts Required:	1 ea	#8 solder lug [PN 2959-24]
		1 ea 	#6 solder lug [PN 259-1]		1 ea	100 pF capacitor [PN 21-75]
		2-1/2"	Small red stranded wire [PN 344-90]		3/4"	Small sleeving [PN 346-1]
Transmitter Board:- Change C403 from .001 uF to 100 pF [PN 21-75].
- Remove the red wire and one lead of C2 [.001 uF] from point S. Save thetwo 
   ferrite beads from the lead of C2.-  Remove C2 and discard.
-  Solder PCB pins B, L and N to the foil on the TOP side of the
Transmitter board.
-  Splice the 2-1/2" red stranded wire onto the red wire that was removedfrom 
    point S.  Place sleeving over the splice.
-  Connect the red wire to the OUT PCB pin.  Wrap the end of the wirearound the 
    top of the pin and solder.Power Amplifier Board
- Prepare the #8 solder lug [PN 259-24]  (At 9/16" bend the eyelet end of
the solder lug at a 90 deg angle.  Then cut off the end 1/2" from thebend.]
-  Mount the #8 solder lug and the #6 solder lug at point X, as shown.
//The #8     solder lug is shown connected to the chassis with following
sequene: washer,
    #8 lug, #6 lug, nut.  The bent 'foot' of #8 is then soldered to the
chassis.//-  Solder the #8 solder lug to the chassis.
-  Remove the shield lead of the coax cable at point B on the Power
Amplifier     board.  Then solder this shield lead to the #6 solder lug
at point X.NOTE:  When checking receiver spur levels, a 50 ohm impedance must be
connected to the antenna input jack.
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			April 14, 1978HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-15
	               No VCO Lock (Temperature Related) 
QA has looked into this problem and has determined that NPC or NP devices
should NOT be used for Q501, Q503 or Q401.  All other manufacturers of
Part # 417-801's are acceptable replacements.  (NPC or NP devices are
clearly marked; factory parts inventory does not contain NPC devices).
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			May 30, 1978HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-16
		Wrong Diode Installed At VD-502
Diode VD-502, on the VCO circuit board, should be an MV-2110 [PN 56-640].
 This diode is packed in a special bag marked "HW-2036A".  The MV-2107 is
packed with the VCO parts and may have been used at this location.
Also check R302 on the Power Amplifier circuit board.  This resistor
should be a 100 K ohm, 5 % [PN 6-104-12], instead of a 10 %.
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			July 24, 1978HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-17
	           Receiver Spurs On Repeater Frequencies
A number of receier spurs are present in the HW-2036 and HW-2036A.  When
the 10 MHz and 21.55 MHz oscillators are correctly set per the manual,
several of these spurs will occur on standard repeater channels, i.e.,147 MHz.
These spurs may be moved off channel by adjusting the 10 MHz oscillator
high or low by some [change of] f, and compsensating at the center of the
band by readjusting the offset oscillators (receiver and transmit).  The
spurs will move approximately 1500 Hz for every 100 Hz [change of] f, and
in the same direction as [change of] f.  For example, if the 10 MHz
oscillator is set 500 Hz high, the spur at 147 MHz will move up to
147.0075 MHz.  The offset oscillators must be adjusted in the opposite
direction by 0.1 [change of] f for the HW-2036A, or by 0.117 [change of]
f for the HW-2036.  (The offset oscillator does not affect spurfrequencies.)
The price to be paid is a frequency error, which will be maximum at the
band edges.  This maximum error will be 1/5 [change of] f in the
HW-2036A, and 1/10 [change of] f in the HW-2036.  For example, if [change
of] f = 1 kHz, maximum error = 200 Hz in the HW-2036A, 100 Hz in the
HW-2036.  This is less than 0.00015% or 1/10 of the stability
specification, and should be an acceptable trade-off to a customer
bothered by a spur.The procedure is as follows:	1.  Tune to the offending spur.
	2.  With dummy load attached, adjust the 10 MHz oscillator justenough
	      to drop the spur to an acceptable level.
	3.  Set switches to center of band.
	4.  Adjust offsets by following one of the procedures in themanual.
	5.  Check to see that no spurs have moved onto other desiredchannels.
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			July 24, 1978HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-18
			No FM Quieting
If there is no FM quieting, although deviation can be heard at .5 uV and
signal strength meter deflects normally, check:
	IC502, the VCO oscillator chip [PN 443-740].
It may be noisy, causing high noise injection at the first receiver mixerstage.
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			July 24, 1978HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-19
	PLL Will Not Lock; Cannot Adjust TP401 to 2.2 Volts
Some early "A" models were shipped with incorrect VCO coils and incorrect
capacitors for C509 and C513.
If the VCO test voltage at TP401 changes rapidly between .5 and 4.5
volts, check these components,  The correct parts are:
	VCO coil, blue [PN 49-1855]	C509; 22 pF capacitor [PN 20-99]
	C513; 125 pF capacitor [PN 20-177]
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			September 26, 1978HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-20
	        Synthesizer Circuit Board [PN 85-1877-4] Screening
		                       InconsistenciesNote the following screening errors:
Component Location	Correct Value	Value Screened on Board
-----------------------------	-------------------	------------------------------------
R447			820 Ohm		470R445			2200 Ohm	6800C403			100 pF ceramic	.001
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			October 11, 1978HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-21
			Low Power Output
After the unit has been operating for a period of time, L106 and L107 may
not tune properly and there will be low RF voltage at T1, along with low
power output.  The center conducter of J102 on the transmitter circuit
board may be cutting the insulator paper below the circuit board (on the
chassis) thus shorting the RF to ground.
If the lower washers on the board mounting studs are missing, the board
will rest too close to the chassis, which causes the jack to come in
contact with the chassis and insulator paper, eventually shorting to thechassis.
Be sure the lockwashers are properly installed and if need be, the center
lug of J102 may be trimmed slightly to provide additional clearance.
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			November 20, 1978HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-22
	Part # 417-240 FET's Supplied With Shorting Wire On Leads
This unit may have been shiped with a shorting wire around the leads of
the Part # 417-240 device.  The manual does not give instructions to the
customer for the removal of this shorting wire.
When servicing this product, check for the possibility of the shorting
wire still installed on this device.
The manual is being inserted with the proper instructions concerning the
removal of the shorting wire.
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			January 9, 1979HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-23
	  Relative Receive Signal Strength Meter Inoperative But
	               Receiver Sensitivity Meets Specifications
Q204 [PN 417-169] is defective.  Typical meter operation is 2 -5 uV for
full scale deflection.
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			February 16, 1979HW-2036							BulletinNo:2-Meter Transceiver					HW-2036-24
	Pilot Lamp Holder Interferes With Removal And Installation			    Of VCO Cover
The pilot lam