[R-390] R390 Inspection _List_Part_1

[Roger Ruszkowski]

Jerry,
 
You are looking for this stuff.

Roger Ruszkowski


This paper is still not complete.
 
Nothing in this work is original to Roger Ruszkowski. Iacknowledge that I copied and pasted every bit of it from others. Contributorsinclude at least the following Fellows. The contributions are not limited tothe following Fellows. Additional names may be added at any time.Acknowledgements appear in no special order. :R-390 at mailman.qth.net
 
David Melody became a SK May 2 2010. in Tucson Arizona
 
David Melody, Tisha Hayes, Barry Hauser, Tom Marcotte,Walter Wilson, W. Li, Nolan Lee, Pete Wokoun KH6GRT, David Wise, Al Tirevold,John Harvie, John Patterson KB4SLV, Joe Foley, Dan “Hank” Arney KN6DI, WalterWilson, John Bunting, W4NET, Jim Miller, N4BE, , Al Solway, Dan Malone KAØCWD,Dr. Gerald Johnson, Chuck Rippel, Glenn Little, Bruce Maclellan, Norman Ryan,Dallas Lankford, Scott Seickel, Perry Sandeen, DW Holtman, Gary Gitzen, TomNorris, James A. (Andy) Moorer, Scott Seickel, Matt Parkinson, Don Heywood, Cecil Acuff, Pete Williams, Russ WA3FRP,Barry - N4BUQ, Roger L. Ruszkowski AI4NI
 
We want something that will sit there and run for monthafter month and need nothing but tubes and dial lamps. Nolan. 5/99.
 
DB    Watts      Volts Ohms  Amps
00  00.0010  00.7746 600  00.0013
01  00.0013  00.8691 600  00.0014
02  00.0016  00.9752 600  00.0016
03  00.0020  01.0941 600  00.0018
04  00.0025  01.2277 600  00.0020
05  00.0032  01.3774 600  00.0023
06  00.0040  01.5455 600  00.0026
07  00.0050  01.7341 600  00.0029
08  00.0063  01.9457 600  00.0032
09  00.0079  02.1831 600  00.0036
10  00.0100  02.4495 600  00.0041
11  00.0126  02.7484 600  00.0046
12  00.0158  03.0837 600  00.0051
13  00.0200  03.4600 600  00.0058
14  00.0251  03.8822 600  00.0065
15  00.0316  04.3559 600  00.0073
16  00.0398  04.8874 600  00.0081
17  00.0501  05.4837 600  00.0091
18  00.0631  06.1528 600  00.0103
19  00.0794  06.9036 600  00.0115
20  00.1000  07.7460 600  00.0129
21  00.1259  08.6911 600  00.0145
22  00.1585  09.7516 600  00.0163
23  00.1995  10.9415 600  00.0182
24  00.2512  12.2765 600  00.0205
25  00.3162  13.7745 600  00.0230
26  00.3981  15.4552 600  00.0258
27  00.5012  17.3411 600  00.0289
28  00.6310  19.4570 600  00.0324
29  00.7943  21.8311 600  00.0364
30  01.0000  24.4949 600  00.0408
31  01.2589  27.4837 600  00.0458
 
 
A. Current State
B. Modifications Installed
C. Cosmetic Clean Up
D. Hard Core RF Module Cleaning
E. Cosmetic RF Module Cleaning
F. Rebuild Inspection / Visual Inspection
G. Reassemble The Receiver
H. Mechanical Alignment
I. Knobology Dynamic Testing Monthly Test
J Adjust the IF gain R519
K. Alternate Procedure To Set The IF Gain Control
L IF Module Alignment
M. To Stager Or Not To Stager
N. To Stager Tune IF
O. To Straight Tune IF
P. Adjust Z503 AGC
Q IF And Audio Module Tube Optimizing
R. Adjust T208, C520, L503, and Zero BFO
S 2nd Crystal Oscillator Alignment
T 1st Crystal Oscillator Alignment
U VFO Band Spread Test
V VFO Band Spread Adjustment
W. RF Alignment
X RF Deck Tube Optimization
Y. Receiver Sensitivity Test
Z. Signal To Noise Test
 
A. Current State
___ 01 Top cover should not be installed if rack mounted
___ 02 Bottom cover should not be installed if rack mounted
___ 03 RF deck cover should be installed
___ 04 Factory holes in left side to allow adjustment ofmechanical filters
___ 05 A Check the VFO position you may not want to loosensome screws
___ 05 B Collins / Motorola VFO
___ 05 C Cosmos VFO
___ 06 IF output connector on back panel is present
___ 07 IF output cable is present
___ 08 All the knobs are present
___ 09 Any obvious broken parts
___ 10 Any missing parts
___ 11 Any leaking parts
___ 12 Any wire harness damage
 
B. Modifications Installed
___ 01 Diode load hole in the front panel (not desired)
___ 02 Adjustment hole in the top dust cover for the meteradjustment.
___ 03 Micro dial on BFO
___ 04 Jumper from break-in on terminal board to ground
___ 05 A IF deck has no adjustments for mechanical filters
___ 05 B IF deck has trimmers only on top for mechanicalfilters
___ 05 C Chassis has no holes for under deck trimmer caps
___ 05 D Chassis has four added holes for under deck trimmercaps
___ 05 E Chassis has four manufactured holes for under decktrimmer caps
___ 06 A Ballast tube is original 3TF7
___ 06 B Ballast tube is 12 volt filament tube (12BY7 12.6 V.3 A)
___ 06 C Ballast tube is diode
___ 06 D Ballast tube is resistor
___ 06 E Ballast tube is removed with 12BA6 in BFO and VFO 
___ 06 F Ballast tube is removed with 6.3 volt filaments forBFO and VFO
___ 07 A Solid state 26Z5’s sockets unwired
___ 07 B Solid state 26Z5’s sockets crimped over
___ 07 C Solid state 26Z5’s diodes on top of sockets
___ 07 D Solid state 26Z5’s no clue provided
___ 08 Spook cover on dial bezel
___ 09 Colored dial lights (red or blue)
___ 10 LED dial lamps
___ 11 EIA tube shields
___ 12 The selenium rectifier is replaced with bridgerectifier
___ 13 Replaced power filter caps
___ 14 Replaced AGC time constant caps
___ 15 Langford AGC diode modifications
___ 16 Other SSB modifications
___ 17 A Line filter is still original
___ 17 B Line filter is GFI friendly
___ 17 C Line filter is missing
___ 18 R390A has a quality capacitor for C553
___ 19 R390A black or brown beauties have been replaced inIF and RF
___ 20 A R390A power supply filter caps original style
___ 20 B R390A power supply filter caps re-stuffed cans
___ 20 C R390A power supply filter caps re-stuffed otherpackage
___ 20 D R390A power supply filter caps under deck
___ 21 A R390 power supply filter caps original style
___ 21 B R390 power supply filter caps re-stuffed cans
___ 21 C R390 power supply filter caps re-stuffed otherpackage
___ 21 D R390 power supply filter caps replaced other
___ 22 A R390 Audio 1UF B+ filter caps original style
___ 22 B R390 Audio 1UF B+ filter caps re-stuffed
___ 22 C R390 Audio 1UF B+ filter caps replaced under deck
___ 23 Paper caps removed from Audio module.
___ 24 R390A C604 0.01 300 WVDC 20% paper replaced with .022400 V
___ 25 R390A C605 0.01 300 WVDC 20% paper replaced with .022400 V
___ 26 R390A C609 8uf 30 WVDC Tantalum Electrolytic replaced
___ 27 R390A 6626 MIL spec replacing the 0A2 commercial tube
___ 28 R390A R504 should have a value of 500 ohms.
___ 29 A Line meter is original type
___ 29 B Line meter is correct resistance but re faced
___ 29 C Line meter is modified circuit and meter
___ 29 D Line meter does not have correct face
___ 30 A Carrier meter is original type
___ 30 B Carrier meter is correct resistance but re faced
___ 30 C Carrier meter is modified circuit and meter
___ 30 D Carrier meter does not have correct face
 
C. Cosmetic Clean Up
___ 01 Remove all of the knobs and lightly lube the setscrews
___ 02 Pull all of the modules out of receiver
___ 03 Drop the front panel
___ 04 Rip it's gizzard out and scatter and toss the partsaround
___ 05 Try but manage to not loose any of the parts
___ 06 Do not have any extra parts left over when finished
___ 07 Pull all the tube shields
___ 08 Pull all the tubes
___ 09 Remove the RF slug racks and springs
___ 10 Wipe each of the RF cores out with a damp Q-tips
___ 11 Wipe the slugs off, and eye ball them
___ 12 R390A All of the RF slugs are all the same
___ 13 R390A All of the Variable six IF slugs are the same
___ 14 R390 RF slugs type a
___ 15 R390 RF slugs type b
___ 16 R390 First IF slugs
___ 17 R390 Second IF slugs
___ 18 Remove the RF coil can assemblies
___ 19 Straighten the IF and RF can assemblies as needed
___ 20 Verify that the index washers were installed in thetwo big knobs
___ 21 Give the chassis a bath with soap and water let dry
___ 22 Wash the front panel with soap and water let dry
___ 23 Wash the modules with soap and water let dry
___ 24 Do not take apart the 6 camshafts and the antennatrimmer can.
___ 25 Do not oil the antenna trimmer insulating fiberwashers
___ 26 Do not saturate / soak / submerge the slugs
___ 27 Clean the slug rack rollers by working penetratingoil into rollers
___ 28 Keep lubing and wiping them until only clean oilcomes out
___ 29 Deoxit the tube sockets and coil sockets
___ 30 Deoxit the RF band switch
___ 31 Give rest of RF deck a bath (hard core or cosmetic)