B+K precision 467 User manual

SERVICI
MANUAL
CATHODE
RAY TUBE
RESTORER
/NNALYZER
Ml Modet
467
t\
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ffit
7ffir Maxtec.lnternational
Corp. 6470 WestCortland
SureetChicago,
lllinois
60635

T?reModet 461 CRT Restorer/Analyzer has been
designed to evaluate all Black and White and Color
television pieture tubes with a high degree of accur-
acy by using just onesimple test.
firis tester utilizes solid-state digital multiplexing
circuits which will test the three guns in rapid fire
sequencefor emission, tracking, leakage,focus, iltd
life tests. The tester also provides improved rejuve-
nation circuits which call remove shorts, clean and
balancethe guns, andrestore the emission capabili-
ties of the cathode
for eachgunindependently.
Adapters are provided to directly test all common
TV picture tubes. Refer to the Set-Up Chart for the
correct adapter number andtest voltage to use.
Tests Performed
Restore F\rnctions
Meters
Meter Indications
Emission
RestoringCurrent
Ileater Voltage
Gl Bias Voltage
Power Line Voltage
Emission
Leakage
Tracking (Color Tubes)
Life
Focus Continuity
Short Removal
GunCleaningand
Balancing
CathodeRejuvenation
Three,2-l/2",
D'Arsonval Movement
0-2 ma.
0-2 Scale
0-15Volts
30-100Volts
100-130
Volts
DESCRIPTION
SPECIFICATIONS
REASSEMBLY
Test Voltages
Heater
Gl Bias
G2 Supply
Power Requirements
Fhses(Internal)
Heater Supply
High Voltage Supply
Size
Weight
INSTRUCTIONS
0-7 @
2.0Amps
7
-14@
600Milliamps
Neg.
(-) 30to Nes.
(-)
100
Volts DC
Normal, 0-350Volts
DC
High, 180-530
Volts
DC
117Volts AC, 60Hz,
40 lVatts
3/10 Amp, 3AG
Sto-Blo
3/8 Amp, 3AGSlo-BIo
L3-L/2"
x 10" xs-3/4"
10lbs
DISASSEMBLY
To
Remove
f
rom
Case
1. Remove four screws holding rubber feet from
bottom of case.
2. Removeonescrew andwasher from front of case
(belowlid catch).
3. Lift chassis upward andremove from case.
To
Remove
PrintedCircuitBoardAssembly
1. Removeall knobsfrom front panel.
2. Removeretaining nuts andwashers from the Red
G2andBlue G2controls, andthe Functionswitch.
3. Remove onescrew from right front side of front
panel
cover.
4. Partially remove the front panel cover and
disconnect wires from each meter.
5. Remove neon bulbs Nl thru N8 from lens caps.
Removefront panel cover.
Remove two screws holding line cord andoutput
cable assembly bracket to chassis.
Remove four screws holding printed board to
chassis.
Partially remove printed board from chassis far
enough
to remove cable connectorsA andB from
printed board.
10. Remove printed board assembly from chassis.
6.
1.
8.
9.
1.
2.
Place front panel cover in front of chassis in its
proper position.
Position printed board assembly againstbotlom
of chassis and connect meter leads to their re-
spective meter. Make sure positive (+)lead and
negative(-) are connectedproperly to the meter.
Refer to schematic (Fig. 3) and printed board
layout(Fig. 2) to determine correct lead identifi-
cation.
3. Position front panel cover onto chassis ard re-
place retaining nuts and washers on RedG2 and
Blue G2controls andtighten.

D38
R22
s3,s4,
s5,
sg
4. Replace screw on front right side of chassis.
5. Insert neon bulbs Nl thru NB into their proper
lens cap. Refer to the schematic (F.ig. 3) and
printed board Iayout (Fig. 2) to determine correct
placement of bulbs.
6. Replace connectors A and B onto printed board.
7. Place printed board onto chassis and replace re-
taining nut and washer on Function switch and
tighten.
CALIBRATION
Heater
Voltage
l. Connect
Adapter No.3 to output
cable.
2. Connect an AC voltmeter to pins I and 14 of
adapter.
3. Setvoltmeter to the lO-volt range.
4. Connect AC line cord of tester into 11.7 VAC
outlet and set Function control to the SET-UP
position. .
5. SetHTR Range switchto the 4-? volt position.
t2 sll N7 N2 N6 N3
Fig.l. Rear
View
of
FrontPanel
- PartsLocation.
Replace two screws holding line cord and output
cable to chassis.
Replace four screws holding printed board to
chassis.
Replace all knobs on front panel controls.
Lower chassis into case and replace screw and
washer on front of case and four screws and
rubber feet on bottom of case.
ADJUSTMENTS
6. Adjust HTR control to read exactly 6.3volts on
externalAC voltmeter.
7. Adjust HTR Cal control (R16) on printed board
(seeFig. 2 tor location) so that HTR voltmeter
ontester (nea/gSzW) indicates
exacily 6.3volts.
Tracking
Range
1. Connect AdapterNo. 3 to output
cable.
2. Connect a 100K,l/2 Watt resistor betweenpins
2 and13 of adapter.
3
8.
9.
10.
11.

3. Turn all three G2controls and Tracking control 6. Set Function switch to TEST position.
fully counterclockwise. 7. Adjust neflggW G2 control so that Red/B&W
4. SetG2 switch to NORMAL position meter reads full scale.
5. ConnectAC
cordof tester into ll?VAC outlet and '8. Push tragking button and adjust Min Pulse Ca
set Function switch to SET-UP position until unit control (R23) on printed board (see Fig. 2 fo.
warms up. location)
for minimum reading.
TROUBLESHOOTING
All troubleshootingprocedures such as voltage waveformtestpoints andthe
schematicin Fig. 3for
measiurements,waveform analysis, and adjus.tments correct voltages andwaveforms. Disassembly of the
can be made from the bottom. side of the printed printed board will only be necessary if a componen{
circuit board. SeeFig. 2 for location of voltage and needs
replacing.
TROUBLESHOOT
INGCHART
Symptom Check
Set inoperative. Power light does not come on. 1. Fuse F1.
2. Function switch 51.
Power light comeson. Blue G2
meter doesnot 1. Meter M3.
indicate line voltage. 2. Function
switch51.
3. Rectifier D16.
4. Resistor R20.
Heatercircuit inoperative
onall positions. 1. Fuse F2.
HTR Setcontrol does not function. 2. Functionswitch 51.
3. HTR Range
switch 52.
4. Secondaryvoltages of transformer T2.
5. HTR Cal control R16.
6. Rejuvenateswitches 568, S?B,andS8B.
7. Cableconnector A.
CRT heater lights. Meter does not indicate 1. Meter Ml.
voltage. 2. HTR Calcontrol R16.
3. DiodeD30.
4. Resistors Rl?, R18,andR69.
NoGl control voltage. 1. Meter M2.
2. Gl controlR33.
3. Rectifier D18.
4. Transformer T1.
5. Capacitor C20.
6. Resistors R32andR35.
OneG2control fails to adjust properly. 1. Collectors of Q2, Q3, andQ4with scopefor
typical square wave. A straight line indicates
a badtransistor.
2. G2controls R49,R50,and
R51.
3. Trans_istors
Q5,Q6,Q?.
4. Multiplex generator voltages andwaveforms.
5. ICIA, ICIB, IC2C, ard IC2D.
All G2controls fail to adjustproperly. 1. 12BH?Atube
Vl.
2. Transistor Q1.
3. Rectifiers Dl thru D4.
4. Transformer T1.
5. CapacitorsCll andC12.
6. Resistors R41and R43.
7. Multiplex generator waveforms.
8. ICIA, IC1B, IC2C,andIC2D.

CONN.A
R22
s3,s4,
55,
sg
4. Replace screw on front right side of chassis.
5. Insert neon bulbs Nl thru NB into their proper
lens cap. Refer to tlre schematic (F.ig. 3) and
printed board layout (Fig. 2) to determine comect
placement of bulbs.
6. Replace connectors A and B onto printed board.
7. Place printed board onto chassis and replace re-
taining nut and washer on Function switch and
tighten.
CALIBRATION
Heater
Voltage
1. Connect
Adapter No.3 to outputcable.
2. Connect an AC voltmeter to pins 1 and 14 of
adapter.
3. Setvoltmeter to the l0-volt range.
4. Connect AC line cord of tester into ll7 VAC
outlet and set Function control to the SET-( P
position. .
5. SetHTR Rangeswttchto the 4-7 volt position.
N2 N6 N3
Panel
- PartsLocation.
Replace two screws holding line cord and output
cable to chassis.
Replace four scre$rs holding printed board to
chassis.
Replace all knobs on front panel controls.
Lower chassis into case and replace screw and
washer on front of case and four screws and
rubber feet on bottom of case.
ADJUSTMENTS
6. Adjust HTR control to read exactly 6.3 volts on
externalAC voltmeter.
7. Adjust HTR Cal control (R16) on printed board
(seeFig. 2 f.or location) so that HTR voltmeter
ontester (Red/B&W) indicates
exacily 6.3volts.
Tracking
Range
1. Connect Adapter No. 3 to output cable.
2. Connect a 100K, t/Z Watt resistor between pins
2 arfi 13 of adapter.
3
12 sll N7
Fig.1. Rear
View
of
Front
8.
9.
10.
11.

3. Turn all three G2 controls and Tracking control 6. Set Function switch to TEST position.
fully counter clockrvise. 7. Adjust ned,/e8rW G2 control so that Red/B&W
4. Set G2 switch to NORJvIAL position. : meter reads full scale.
5. ConnectAC cordof tester into ll?VAC outlet and , 8. Push traqking button and adjust Min Pulse Ca
set Function switch to SET-UP position until unit control (R23) on printed board (see Fig. 2 f.o
wtrrms up.
TROUBLESHOOTING
All troubleshootingprocedures such as voltage waveformtestpoints andtheschematic
.inFig. 3for
measurements, waveform analysis, and adjustments correct voltages andwaveforms. Disassembly of thr
can be made from the bottom side of the printed printed board will only be necessary if a componenl
circuit board. SeeFig. 2 for location of voltage and needs
replacing.
TROUBLESHOOTING
CHART
Symptom Check
Set inoperative. Power light does not come on. 1. Fuse F1.
2. Function switch Sl.
Power light comeson. Blue G2
meter doesnot 1. Meter M3.
indicate line voltage. 2. Functionswitch 51.
3. RectifierD16.
4. Resistor R20.
Ileater circuit inoperativeon all positions. 1. Fuse F2.
IITR Set control does not function. 2. Function switch Sl.
I ffi:":ili'":il[*'ji transrormer12. \-'"
5. HTR Cal control R16.
6. Rejuvenate
switches56B, S?B,and S8B.
7. Cable
connector
A.
CRT heater lights. Meter does not indtcate 1. Meter Ml.
voltage. 2. HTR Calcontrol R16.
3. DiodeD30.
4. Resistors R17,Rl8, andR69.
NoGl control voltage. 1. Meter M2.
2. Gl control R33.
3. Rectifier D18.
4. Transformer T1.
5. CapacitorC20.
6. Resistors R32andR35.
OneG2control fails to adjust properly. 1. Collectors of Q2, Q3, andQ4with scopefor
typical square wave. A straight line indicates
a badtransistor.
2. G2controls R49,R50,and
R51.
3. Trans-istors Q5, Q6,Q?.
4. Multiplex generator voltages andwaveforms.
5. ICIA, ICIB, IC?C,and
IC2D.
1. 12BH?Atube
Vl.
2. Transistor Q1.
3. Rectifiers Dl thru D4.
4. Transformer T1.
5. CapacitorsCll andCl2.
6. Resistors R41andR43.
7. Multiplex generator waveforms.
8. IC1A, ICIB, ICZC, andIC2D.
All G2controls fail to adjustproperly.

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TROUBLESHOOTING
CHART(cont
U.
)
Symptom Check
No indication of leakage. 1. 1?0
volt power supplyvoltages.
2. Transistors Q5, Q6, andQ?.
3. Neonlamps N5, N6, andN?.
4. Multiplex generator waveforms.
5. IC1A,ICIB, rCzC,ICzD.
Onemeter moves upscalewhenother two G2 1. Transistors Q5, Q6,or Q? (the oneswitching
controls are turned up. Itrnction switch in that meter).
CUT-OFF position.
One meter reads noticeably higher than other 1. Transistors Q5, Q6, or Q? (the one switehing
two. Function switch in CUT-OFF position. that meter).
Onemeter falls noticeably lower than other two 1. Transistors Q5, Q6,or Q? (the oneswitching
in Tracking test. that meter).
Tracking control works, but in reverse di- 1. Transistor Q10.
rection and/or notwith full range. 2. TraekingRange
adjustment
(R23).
Tracking circuit inoperative. 1. Transistor eB, eg, or e10.
2. Voltagesandcomponentsin clock circuit.
3. IC2AandIC2B.
4. Tracking control R22.
5. Min Pulse Calcontrol R23.
Restore F\rnctionsinoperative. 1. 2?0volt power supply voltages
2. Ballast tubes 11
and X2.
3. Rectifiers D5,D6, and
D?.
4. Rejuvenate
switches 56A, S?A, ard S8A.
5. RemoveShort switch S4Aand
S4B.

PARTS LIST
NOTE:
Standardvalueresistors and
capacitors
are notlisted. Mini- remittance
acconrpanies
order, Advance remittancemust
mum charge
$5.00
per invoice. Orderswill beshipped
C O.D. cover postage or express charges. Specifyserial number
unless
previous
open
account
arriulgenrents
havebeen
urarleor whenordering
replacement
parts.
Ref.
I Part
No. I No. I Description
IC CIRCUITS
ICI | 30?-010-9-001 | 7413.
Dual J-K Ftip-Flop
lCz | 307-015-9-001 I ?400, Quad Two Input NAND Gate
Ref.
I Part
No. I No. I Description
TRANSISTOR.S
Qr
thru | 176-033-9-001 | 2N5550,NPN.Silicon
33,*,1 I
elo I rzo-osz-g-oor I pxroas,
NpN,silicon
CONTROI.S AND RESISTORS(Cont'd.
)
R23 | OOa-OZ1-S-OO1 | 250K, i30$, Trimpot. Min. Pulse Cat.
R33 | ooa-trs-s-oot I iox, ,10%,l/2 watt.
set
Gl control
R39 | oo0-toz-s-azs I a.zn,
trc%.
yz watt,
wirewound
R43 | 003-010-6-303 I 30K.
10
Watt,Wirewound
Glass
R.lg | 008-135-9-001 I 50K. xl}%. l/2 Watt. RedG2 Control
R50 | ooe-tls-s-oot I sox. tl1%, l/2 watt,
creenG2Contrcrt
R51 | OOA-trS-S-OOt I SOX,
tlQ%, l/2 Watt. Blue G2 Control
R6? | 009-029-9-001 | 3a, tLo%, 12Watt, wirewound. HTR
Adj. Control
DIODES AI.{D RECTIFIERS
D1
thru
D19
D20
thru
D29
D30
D31
D32
D33
D34
D35
D36
D37
151-018-9-001 | Rectifier, 600 PfV, 1 Amp
151-038-9-00f I lN4l48, Diode, Silicon
150-008-9-001
52-056-9-001
52
-014-9-001
52
-030-9-00r
52
-058-9-001
52
-058-9-001
152
-056-9-001
152
-056-9-001
lN6?A, Diode Germanium
Zener, 56V, t 10%, 1 Watt
Zenet, 24Y, +5%. 1 Watt
Zener, 5,lV, t5%, 1 Watt
Zener, 51V, +10$, 1 Watt
Zener, 91V, r10%, 1 Watt
Zener, 56V, * 10fr, 1 Watt
Zener, 56V, *10%, I Watt
SWITCHES
S1
s2
53,4
5,9
s6
s?
s8
s10
s11
083-165-9-001 | 5-Positron Rotary, Function
083-091-9-001 | 6-Position Rotary, Htr Range
088-020-9-001 | 4-Station Pushbutton Ass'y., Tracking,
Life, Focus, Remove $rorts
088-021-9-001 | DPDT Momentary. Red-B&W Rej.
088-021-9-001 | DPDT lVlomentary, Green Rej.
088-021-9-001 | DPDT Momentary. Blue Rej.
084-C01-9-001 | SPDT Slide, G2 High-Normal
084-001-9-003 | DPDT Slide, Rejuvenate,
Clean-Balance
CAPACITORS
c1
c2
c3
cl1
cL2
cl3
cl4
c19
c20
022-r09-9-00
022-r.09-9-00
022-109-9-00
02
1
-056-9-00
02r
-056-9-00
022-084-9-00
022-084-9-00
021-040-9-001
021
-04C-9-001
220 mfd, 100V, Electrolytic
220 mfd, 100V, Electrolytic
220 mfd, 100V, Electrolytic
50 mfd, 450V, Electrolytic
50 mfd, 450V. Electrolytic
1000
mfd, 16V, Electrolytic
1000mfd, 16V, Electrolytic
10 mfd, 250V, Electrolytic
l0 mfd, 250V, Electrolytic
MTSCE
LT"ANEOUS
F1
F2
I1
12
NI
thru
N8
T1
T2
M1
l,ll2
M3
vl
190-004
-9-001
190-251-3-308
400-034
-9-001
400-034
-9-001
Flse. 3,2
10A, 250V, 3AG Slo-Blo
Fuse, 3/8A, 250v. 3AG Slo-Blo
Bulb, 230V. 10Watt
Bulb, 230V. 10 Watt
Bulb. Neon.NE-2
Transformer, Power
Transforner, Filameut
Meter, Heater Volts
Meter, Gl Volts
Meter, Line Volts
12BH7A. Tube
Line Cord
Case Assembly
Knob. Function
Knob. Small (6 Used)
Knob. Heater Range
Knob, Pushbutton
Lens Cap, Red (2 Used)
Lens Cap, Clear (7 Used)
Rubber Foot
Soc
ket, L:rrnp
Vinyl Divider Flap
Hinge Wire, Flap
Adapter Storage Assembly
Output Cable Assenrbllr
401
-016-9
-001
065-098-9
-001
062
-004-9-001
320-059-9
-001
320-060-9
-001
320-058
-9-00r
236
-
120-2
-08?
420-001-9-009
523-10?-9
-001
?51
-005-9-008
751-r12-9-00r
751-115-9-001
384
-016
-9-006
?50
-003
-9-00
1
750-003
-9
-002
381-002-9-001
?52
-00?-9
-001
?58
-02
I
-9-001
?63-027
-9-001
523-
103-9
-001
CONTROI.S AND RESISTOR.S
Rz | 002-104-s-249 | z.aa,*.$%,114watt, carbon
RB | 002-104-8-249 | 2.4a, x5%,L/4Watt,
Carbon
ru | 002-104-8-249 | Z.tO, $ft, t/4 Watt,
Carbon
-104-8-249 | z.+o,+L%,l/2 watt,carbon
Rlo | 002-104
Rrl I ooz-otr-s-oor I rton,;r%,L/zwan,
carbon
Rlz I ooz-otz-s-oot I lt0st,*L%, L/2watt,
carbon
Rr6 | ooe-ose-s-oor I rox,
*20$,Trimpot,
HTR
cal.
R19 | 002-032-9-001 | 499K,tt}%, L/2 watr, Carbon
Film
R20 | 002-031-9-001 I 340K, tl0%, L/2 Watt, Carbon Film
R22 | 008-135-9-001 | 50K. tl0%, l/2 Watt, Tracking Control
I

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