Bell&Howell 013300 User manual

Disclaimer
This scanned document is provided as a courtesy. We make
no representation for its accuracy. It is for use by qualified
personnel only. There are high voltage and mechanical
hazards present in this equipment. Do not attempt repair
unless you are fully aware of the safety precautions to be
taken. Use this information at your own risk.
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SERVICE INSTRUCTIONS
LAMP
SUPPLY
UNITS
50
Hz —
Part
No.
013300
60
Hz
—Part
No.
013
310
PHOTO
PRODUCTs GROUP
BELL s
HOWELL
GENERAL SERVICE DEPT.
7100 McCORMICK
ROAD
CHICAGO, ILLINOIS 60645
PART
NO.
70472-2
REVISED
PRINTED IN
U.S .A.
JANUARY 1971

SERVICE
INSTRUCTIONS
Lamp Supply Unit for Marc
300 Projection Lamp
TABLE OF SPECIFICATIONS
Bell & Howell Part Number:
50 -Hz
Unit
013300
60 -Hz Unit
013310
Overall Dimensions:. .
3.75
in. h by 9.08 in. w by 13.25 in. lg
120
volts AC
±10%
(60 Hz)
Input Voltage:
115
volts
AC
±10%
(50
Hz)
Input Power:
384
watts
Input Current:
9 amperes AC
Load
Current:
7.75
amperes DC ± 5%
Load Voltage:
Pulse
9KV Peak
Back
Up
Run
330 volts
DC
37.5 volts
DC
Thermal Specifications:
(see
Page 7)
Thermal
Protection:
Two automatic
resetting thermal
protectors
interrupt power if the
internal temperature of
the power
supply
exceeds
105 ° C (220°F.)

LAMP SUPPLY
UNITS
FACTORY
SERVICE
ADDRESSES
PRODUCT
ONLY
CHICAGO
General Service Department
2200
Brummel
Place
Evanston, Illinois 60202
Area
Code:
312-673-3300
NEW YORK
General
Service
Department
200
Smith Street
E. Farmingdale,
L.I., New York 11735
Area Code:
516-293-8910
GLENDALE
General
Service
Department
623
Rodier
Drive
Glendale,
California
91201
Area
Code:
213-245-6631
PARTS
ORDERS AND
SERVICE
INFORMATION
General
Service
Department
7100
McCormick
Road
Chicago,
Illinois 60645
Area Code:
312-673-3300
TABLE
OF
CONTENTS
INTRODUCTION
Page
General
2
Principles of
Operation
2
Circuit Description
2
Code Date
Information
3
ELECTRICAL TEST
PROCEDURES
Special
Test
Equipment Required
4
Commercial Test
Equipment
Required
4
Hi
-Potential Test
5
General
Electrical Inspections
5
Test Equipment
Set -Up
5
Inrush
Current
Test
5
Ripple
Current Test
5
D.C.
Output and
A.C. Input
Current Tests
5
Pulse Voltage
and
Relay Cycle
Time Tests
6
Open
Circuit Voltage
Test
6
TROUBLE SHOOTING
Trouble
Shooting
for
Overheating in Lamp
Supply
Unit
7.
Trouble
Shooting
for Faulty
Lamp
Operation
7 - 8
Trouble
Shooting with
Test
Equipment
9-10
Illustrations —
Figures 1
through 8
11 -
24
1

SERVICE
INSTRUCTIONS
INTRODUCTION
GENERAL.
This Service Manual
provides testing and
repair
instructions
for Lamp Supply Units used
with Bell &
Howell Design
566A and 566X
Projectors. The lamp
supply
unit, available as a 50 -Hz
unit (Bell & Howell
Part No.
013300) or a 60 -Hz unit
(Bell & Howell Part
No. 013310)
is part of a system
designed to operate
one Marc 300
projection lamp.
Although the specific
considerations contained
herein
relate only to the
lamp supply unit,
total sys-
tem information
must be considered.
The information
contained herein is
proprietary and can only be used
with the
express permission of the Bell & Howell
Company.
All
illustrations referenced in the instructions
are
located at the
rear of the manual. Replacement parts
for both
units are identified on the pictorial
diagrams,
Figures 7 and 8.
WARNING
WHEN THE LAMP SUPPLY
UNIT IS ENER-
GIZED, THE
9000 -VOLT STARTING
PULSE
IS PRESENT. EXTREME CAUTION MUST BE
EXERCISED WHEN OPERATING THE POWER
SUPPLY WHILE NOT
CONNECTED TO A
PROJECTOR OR WHILE THE
POWER SUP-
PLY COVER IS
REMOVED, IN ORDER TO
PREVENT SEVERE
ELECTRICAL SHOCK.
PRINCIPLES OF
OPERATION.
The following description of circuit operation ap-
plies
both
to the 50
-Hz Lamp
Supply Unit (Part
No.
013300)
and the 60 -Hz
Lamp Supply Unit (Part No.
013310). Both
units (referred to as LSU in the de-
scription) are designed to operate
one Marc 300 pro-
jection lamp at 228.75
watts, 120 volts, for 60 Hz op-
eration and 288. 75 watts, 115 volts, for 50 Hz oper-
ation. Total system
power, for the LSUandprojection
equipment, is fed through the LSU and then to the pro-
jection equipment. A power switch located in the pro-
jection equipment controls the application of power
to the LSU. Electrical circuitry of the LSU is shown
in the
schematic wiring
diagram, Figure 6.
CIRCUIT DESCRIPTION.
The power
delivered to the lamp is limited by two
a -c reactors in parallel in the input to the LSU. Two
reactors
are
required to handle the high
input current.
In series with
each reactor is a
thermal protector
TP1
sensing ambient temperature and the temperature
of
resistor Rl. If the temperature
exceeds 105°C, the
controllers will remove power
to the unit. As both
thermal protectors will not
open at exactly the same
temperature, power will be removed in a sequence of
first opening one reactor and then the second reactor.
With only
one reactor in the circuit, input current and
lamp current will be
about one-half of nominal.
Following the
a -c reactors is a rectifier bridge
circuit consisting of four 400
-volt, 10 -ampere recti-
fiers
Dl. In parallel
with each rectifier is a 0.01-mfd,
1000
-volt capacitor C5 for transient protection of the
rectifiers. The d
-c voltage is doubled by means of a
voltage doubler circuit formed
by the rectifiers and
the
10-mfd, 400 -volt capacitors C2.
Also included in
the doubler circuit is a boost transformer T2 to in-
crease
the d -c voltage about 8 volts to the d -c circuit
which is required
for lamp
starting.
The
next part of the circuit is a
relay timing cir-
cuit consisting of the relay
Kl, resistor R4, diode D2,
and
capacitor C4. Before
the lamp has been
started,
the d -c voltage
from
red/white to
white/green is a-
bout
330 volts. The
relay coil voltage
required to pick
up the relay
is 110 volts d -c;
thus, capacitor C4 will
charge to the required voltage
to energize the relay
coil. The time
required to reach
this value
is deter-
mined by
R4 and C4. When
the relay has
been
ener-
gized, the white/blue
lead is connected to white/green,
thus removing the voltage charging C4.
Capacitor C4
cannot discharge through this part of the circuit
as
diode D2
is now reverse biased, causing capacitor C4
to discharge only through the relay coil. When capa-
citor C4 has discharged to the point of drop -out of the
relay, the entire cycle will be repeated as long as the
d -c voltage available is greater than the voltage re-
quired
to energize the relay. The time constants of
this circuit result is about a one -second on -time and
a one -second
off
-time during cycling. When the lamp
is running at 7.75 amperes d -c, the a -c
reactors will
cause the d -c voltage to be about 37.5 volts d -c, thus
not allowing the relay timing circuit to operate.
Included in the
LSU is a filter network to
reduce
the 120 -Hz ripple
current in the lamp. The filter con-
sists of
capacitor
Cl and
the pulse transformer
T3
which serves as a d
-c choke during
running
of
the
lamp.
Capacitor
Cl also supplies
starting
current
for
the
lamp which is
about 18 amperes peak.
This cur-
rent is limited
by
resistor R1 which is
switched
into
the circuit
by relay K1
during
starting of
the
lamp.
Note that resistor R1 should
be
removed
from
the
2

LAMP SUPPLY UNITS
circuit if the
lamp starts, as the relay
will return to
the non
-energized condition. If
resistor R1 is not re-
moved, it will overheat and
cause the power to be re-
moved
by means of
the thermal protector
TP1.
Approximately 8KV peak is required to initially
ionize the lamp. This is generated in the
LSU with the
pulse transformer T3,
capacitor C3 and resistor R3.
With the relay in the non -energized position, capaci-
tor C3 will charge to the d -c voltage
available through
the C3, R3 path. When the relay is picked up, capa-
citor C3 is
placed across aportion of the pulse
trans-
former which generates the
high pulse voltage for
starting the lamp.
CODE DATE
INFORMATION
Year January
February March
April May June
July August
September October
November
December
1965
AA BA CA DA EA FA
GA HA JA
KA
LA
MA
1966
AB BB CB DB
EB FB GB
HB
JB
KB
LB
MB
1967 AC BC CC
DC EC
FC GC
HC JC
KC
LC
MC
1968
AD BD CD
DD ED FD
GD HD JD
KD LD
MD
3

SERVICE
INSTRUCTIONS
ELECT_RICAL TEST PROCEDURES
SPECIAL TEST
EQUIPMENT REQUIRED.
Accurate
testing of the Lamp Supply
Unit requires
the following
special
test
equipment,
as well
as the
commercially available test
equipment listed in Table
II. Complete specifications for the
special test equip-
ment are
illustrated and listed in Figures 1, 2 and 3
of these
instructions.
These units
are not
available
from
Bell & Howell
and must be
assembled
according
to
the
specifications
illustrated.
TABLE I. SPECIAL TEST EQUIPMENT
Description
Fig.
Ref. B & H Part No.
Open
Circuit Starting 1 S -013000-1-F3
Voltage Tester
Pulse
Voltage Test
Box
for LSU
2
S
-013000-1-F1
Inrush, Ripple and D -C
Current Load Box
3 S -013000-1-F4
COMMERCIAL
TEST EQUIPMENT
REQUIRED.
Table
II
lists the
commercially available test equip-
ment required for
performance of test
procedures
outlined in these
instructions.
TABLE II .
COMMERCIAL TEST EQUIPMENT
Test
Equipment
Recommended Model
(Or Equivalent)
Oscilloscope
Tektronix Model 535A
Plug -In Unit
Tektronix
Model 53/54CA
10:1
Attennuator Probe
Tektronix Model P6006
Variac (Monitored)
General
Radio
Type
W20MT3A (50/60
Hz)
Hi -Pot
Tester
Associated
Research
Model
411
Thermocouple Meter Simpson Model 388-3L
DC Voltmeter
Simpson Model 1327
(0-500 VDC)
DC Ammeter
Simpson Model 1327
(0-10
ADC)
TABLE III. TEST LIMITS
Parameter
Input Voltage
(See *Note)
Limit
Testing
Conditions Maximum
Minimum
Starting:
Open Circuit
105
120
-
350 V
290 V
- See Fig. 1
Pulse Voltage
105
120
—
12.0 KV
Total (1200V
across 1 K -ohm)
6.6 KV Total (660V
across 1 K -ohm)
—
See
Fig. 2
Load Inrush Current 120 36 amps (182V Peak
across 5.1 ohm)
20
amps (102V Peak
across 5.1 ohm)
See Fig. 3
Relay Cycle Time 120 44
Cycles
12 Cycles See
Fig. 2
30
Seconds
30
Seconds
Running:
Output Current 120 7.9
D.C.
7.4
D.C.
See
Fig. 3
Ripple Current 120
2.4 A.P P (12.2V P -P
across 5.1 ohm)
—
See
Fig. 3
Input
Current 120
9.0 A.
AC
—
See
Fig. 3
*NOTE: Use 50 -Hz input voltage for 50 -Hz LSU (Part No. 013300).
Use 60 -Hz input voltage for 60 -Hz LSU (Part No. 013310).
4

LAMP
SUPPLY UNITS
WARNING
WHEN
THE LAMP
SUPPLY
UNIT IS
ENER-
GIZED, THE
9000 -VOLT
STARTING
PULSE
IS
PRESENT.
EXTREME
CAUTION
MUST BE
EXERCISED WHEN
OPERATING THE
POWER
SUPPLY WHILE
NOT
CONNECTED TO A
PROJECTOR
OR WHILE THE
POWER SUP-
PLY
COVER IS
REMOVED, IN
ORDER TO
PREVENT
SEVERE ELECTRICAL
SHOCK.
HI
-POTENTIAL TEST.
The Lamp
Supply Unit
shall withstand 900
volts
A.C. for
one (1) minute or
1080 volts A.C.
for one (1)
second
when this
potential is applied
(from zero) be-
tween all current
-carrying parts of the
primary of the
Lamp Supply Unit and
all dead metal
parts.
GENERAL ELECTRICAL INSPECTIONS.
(1)
Check both fuses for
proper
ampere
ratings
(15A,
250V) and make
certain that fuses
can be re-
moved
and installed
without
difficulty.
(2)
Use the low
resistance
range of a volt
-ohm-
meter and
check for continuity
between the ground
pin
of the A.C.
receptacle and the
metal chassis of
the
Lamp
Supply Unit.
Resistance should
be near zero
ohms. (NOTE: When
the supply unit is
removed from
its case, connect
a juniper cable
between the
bottom
chassis and the
front receptacle
panel.)
(3)
The oscilloscope
mustbe
isolated from ground
by plugging
the scope into
an A.C.
adapter plug (3 -
prong
female to 2 -prong
male); then plugging
the ad-
apter into
the A.C. outlet.
(NOTE: If the
chassis of
the
oscilloscope is
grounded, one side of
the Lamp
Supply Unit
output terminals
will be grounded
and the
supply unit
output terminals must
be floating.)
WARNING
THE
OSCILLOSCOPE ISNOT
GROUNDED. DO
NOT
TOUCH BE TWEEN
OSCILLOSCOPE AND
OTHER
EQUIPMENT AS SERIOUS
SHOCK
HAZARD
EXISTS.
TEST EQUIPMENT SET-UP.
(1)
Plug variac into
A.C. outlet.
(2)
Connect supply
unit A.C. line
cord (Bell &
Howell
Part No. 4083'7) between
supply unit and
variac.
(3)
Connect the six -prong
plug of the power
cable
from
the
Inrush,
Ripple and DC
Current
Load Box
(Figure 3) to the Lamp Supply Unit.
(4)
Connect the
D.C.
Ammeter to the
Load Box.
(5) Connect
oscilloscope
to the Load
Box through
the
10X multiplier
probe.
INRUSH
CURRENT TEST.
(1) Set the
AC/DC switch
on the
oscilloscope at
the AC position.
(2) Set the
VOLTS/CM control on the
pre -amp
plug-in
unit at the 5-volt/CM
position.
(3) Set the TIME/CM control at
the
200
msec/CM
position.
(4) Set the
Multiplier control at NORMAL
and the
Trigger Mode Control at
AC (LF REJECT).
(5)
Set the Trigger Slope control at
"+" INT posi-
tion.
(6) Set
the variac to 120V on
the meter.
(7) On 50 Hz
Lamp Supply Units
only, check the
operation of
the blower fan.
(8) When
the relay pulses (clicks), measure the
pulse
on the oscilloscope by
clicking the ON
-OFF
switch on the variac. Pulse
should be 102 volts mini-
mum to 182 volts maximum. D.C.
peak as measured
across the 5.1 ohm load
resistor (10.2 volts mini-
mum to 18.2 volts
maximum on scope with
10X mul-
tiplier
probe).
RIPPLE CURRENT TEST.
(1)
Set the VOLTS/CM
control at the 0.2 volts/CM
position.
(2) Set the TIME/CM control at the 5 msec/CM
position.
(3) Set the
Trigger Mode Control at AUTO.
(4) Turn on the variac and
measure the ripple
voltage on the scope
(across the 5.1 ohm load re-
sistor). Ripple
voltage should not exceed 12 volts
P -P
maximum
(1.2 volts P -P maximum on scope
with 10X
multiplier
probe).
D.C. OUTPUT AND A.C.
INPUT CURRENT TESTS.
(1)
Press
and hold the D.C. current button on
the
test load
box (Figure 3) and note the current
reading
on the D.C.
Ammeter. Current should read
7.4 to 7.9
amps
D.C. Release the D.C.
current button.
(2) Press and
hold the A.C.
current button on
the
testload box and note the
current reading on the A.C.
Ammeter.
Current should
not exceed 9
amps A .C . Re-
lease
the A.C.
current button.
5

SERVICE
INSTRUCTIONS
PULSE
VOLTAGE
AND
RELAY
CYCLE TIME
TESTS.
(1)
Connect the six -prong plug of the power cable
from
the Pulse Voltage Test Box (Figure 2) to the
Lamp
Supply Unit.
(2)
Connect the oscilloscope to the test box through
the 10X
multiplier probe.
(3) Set the
VOLTS/CM control at the 20 volts/CM
position.
(4) Set
the TIME/CM
control at
the 5
microsec-
ond/CM position.
(5) Set the Trigger Mode Control at AC
(LF RE-
JECT) and the Trigger
Slope Control at "+" INT.
(6) Switch the variac ON and adjust the Stability
and Triggering Level controls (per manufacturer's
instruction book) to obtain a single pulse.
(7) Adjust the Horizontal Position control to cen-
ter the pulse on the face of the CRT.
(8) Adjust the variac for 120 volts A.C. on the me-
ter and
measure the peak amplitude of the starting
pulse. The pulse should not be greater than 12,000
volts (120 volts on scope with 10X multiplier probe).
(9) Using the sweep second hand of a watch or
clock, count the number of pulses in a 30 -second per-
iod. There should be between 12 and 44 pulses in a
30- second period.
(10) Adjust the variac for 105 volts A.C. on the
meter and measure the peak amplitude of the start-
ing pulse. The pulse should not
be less than
6,600
volts peak (66 volts
on scope with 10X multiplier
probe).
OPEN CIRCUIT
VOLTAGE TEST.
(1) Connect the six -prong plug
of the power cable
from
the Open Circuit Starting
Voltage Tester (Fig-
ure 1) to
the Lamp Supply Unit.
(2) Switch
the variac ON and adjust for 105 volts
on the A.C. meter. The D.C. output voltage should be
greater than 290 volts D.C. on the D.C. meter.
(3) Adjust the variac for 120 volts on the A.C. me-
ter. The D.C. output voltage should be less than 350
volts on the D.C. meter.
6

LAMP
SUPPLY UNITS
TROUBLE
SHOOTING
WARNING
WHEN THE
LAMP SUPPLY
UNIT IS ENER-
GIZED,
THE 9000
-VOLT STARTING
PULSE
IS PRESENT.
EXTREME
CAUTION
MUST BE
EXERCISED WHEN
OPERATING THE
POWER
SUPPLY
WHILE NOT
CONNECTED
TO A
PROJECTOR
OR WHILE
THE
POWER SUP-
PLY
COVER IS
REMOVED, IN
ORDER TO
PREVENT SEVERE
ELECTRICAL
SHOCK.
TROUBLESHOOTING FOR
OVERHEATING
IN LAMP
SUPPLY UNIT.
Thermocouple location
and
identification for
50 -
Hz and
60 -Hz Lamp
Supply Units will be
found in Fig-
ures 4 and
5
respectively. The
termocouple temper-
ature
readings in Table
IV provided to aid
in locating
an overheated
component in
the Lamp Supply
Unit.
Readings
should be taken
under the following
test
conditions.
Input
Voltage —
Input
Power —
Lamp
Current —
Running Time —
120
volts
(±10%)
for 60
Hz
115
volts (±10%)
for 50
Hz
384
watts
7.74
amperes
4-1/2 hours
continuous
TABLE IV.
MAXIMUM
THERMOCOUPLE
TEMPERATURE LIMITS
*T.C. No.
Limit (°C)
*T.C. No.
Limit
( ° C)
1 115
(G.E.)
8 90
(U.L.)
2 90 (U.L.)
9 90 (U.L.)
3
90 (U.L.)
10 90
(U.L.)
4 65
(G.E.) 11 90
(U.L.)
5
90 (U.L.) 12 60
(G.E.)
6
90 (U.L.) 13
65
(G.E.)
7 90
(U.L.) 14 70
(G.E.)
*Thermocouple
identification number,
Figures 4 and 5
TROUBLE SHOOTING
FOR FAULTY LAMP
OPERATION
The following
trouble shooting
procedures are to be per-
formed
with the Lamp Supply Unit
connected to the proj ec-
tor,
and will enable the
service station to
more quickly de-
termine the nature of
the failure and to
isolate the trouble
to a
defective
component or
components.
Verification of
component failure
can be made
by performing a
standard
continuity check or by
substituting a new part
for the
sus-
pected component.
Refer to the
schematic diagram
(Figure
6) or the pictorial diagrams
(Figures 7
and 8) for
compon-
ent location
and identification.
If the defect
cannot be readily
determined,
perform the tests
outlined
in the
Test Proce-
dures section.
7

SERVICE
INSTRUCTIONS
TROUBLE
PROBABLE CAUSE REMEDY
Lamp does not start
(no flash;
no high
voltage)
1. Blown fuse Fl.
2.
Defective relay Ki.
3. Defective pulse
transformer
4.
Defective
capacitor C3.
5.
Defective lamp.
1. Replace fuse.
2. Replace relay.
T3. 3.
Replace transformer.
4. Replace capacitor.
5. Replace lamp.
Lamp does not
start (faint
flash; high voltage present
but no back-up voltage)
1.
Defective
capacitors C2.
2.
Defective capacitor
Cl.
3.
Defective boost
trans-
former T2.
4.
Defective lamp.
1. Replace capacitors.
2.
Replace capacitor.
3. Replace
transformer.
4. Replace
lamp.
Lamp
does not start (bright
flash; high voltage and back-
up voltage present but not
sustained)
1. Defective
lamp. 1. Replace lamp.
Lamp light
output low 1. Open reactor
Tl.
2. Open thermal protector TP1.
3. Surge limiting resistor in circuit
R1 (open relay Ki contacts 2-4).
1. Replace
reactor.
2.
Replace thermal protector.
3.
Replace relay Ki.
Visible flicker on screen 1.
Defective filter capacitor
Cl.
2. Open diode in
bridge assembly
Dl.
1. Replace
capacitor.
2. Replace bridge
assembly.
Lamp drop -out
after a few
minutes of operation
1. Thermal protector TP1 opens
due to surge
resistor R1 run-
ning in circuit.
1. Check for possible faulty relay
Kl;
perform tests in
Test
Procedures section.
Lamp
drop -out
after
several
hours of continuous operation
1. Lamp supply unit overheating
(temperature controller
Ti
remains open)
1. Check ambient temperature in
enclosure (65°C) maximum);
provide proper ventilation.
Open line fuse Fl
1.
Shorted or grounded reactor Tl. 1. Replace reactor.
Lamp breaks 1.
Natural end of lamp life.
2.
Shorted reactor Ti.
3. Surge
limiting resistor R1 not
in
circuit during start.
1. Replace lamp.
2. Replace lamp and reactor.
3. Perform tests in Test
Proce-
dures section.
8

LAMP
SUPPLY UNITS
TROUBLE
SHOOTING WITH TEST EQUIPMENT.
If the results of tests
performed in the Electrical Test
Procedures
section fail to meet noted
specification require-
ments, use the following troubleshooting guide to
isolate
and correct the trouble. Refer to the schematic wiring dia-
gram (Figure 6) and the pictorial
diagrams (Figures 7 and
8) for component location and identification.
WARNING
WHEN THE LAMP
SUPPLY UNIT IS ENER-
GIZED, THE 9000
-VOLT
STARTING
PULSE
IS
PRESENT. EXTREME
CAUTION MUST
BE
EXERCISED
WHEN OPERATING
THE POWER
SUPPLY WHILE
NOT CONNECTED TO A
PROJECTOR OR WHILE THE
POWER
SUP-
PLY
COVER IS
REMOVED, IN ORDER TO
PREVENT
SEVERE
ELECTRICAL SHOCK.
TROUBLE
PROBABLE
CAUSE
REMEDY
(TROUBLES DURING
STARTING)
No open circuit voltage (see
1. Blown fuse Fl.
1.
Replace fuse.
Figure 1)
2. Open
connection.
3. Shorted
boost transformer T2.
4. Shorted rectifier
bridge Dl.
2. Check circuit and
correct
condition.
3. Replace
transformer.
4. Replace
rectifier bridge.
Low open circuit voltage
(see 1. Defective
voltage doubler
Figure 1
capacitor C2.
2. Open
rectifier bridge
Dl.
3. Defective boost transformer
T2.
4. Leaky
filter capacitor
Cl.
5. Open leads.
1.
Replace capacitor.
2. Replace
rectifier bridge.
3.
Replace transformer.
4. Replace
capacitor.
5. Perform
continuity check;
correct condition.
Variable open
circuit voltage
(see Figure 1)
1. Open surge
resistor
R1 (varies
with relay
cycling).
1.
Replace resistor.
No pulse voltage (see
Figure 2)
1.
Defective
pulse
transformer T3.
2. Relay K1 not cycling
(bad
contacts).
1.
Replace transformer.
2.
Clean
contacts or replace
relay.
3. Open connection or short
circuit. 3. Check circuit and correct
condition.
4. Open
surge
resistor Rl.
4.
Replace resistor.
5. Open or
shorted filter capacitor 5. Replace capacitor.
Cl.
9

SERVICE
INSTRUCTIONS
TROUBLE
PROBABLE
CAUSE
REMEDY
No load
inrush current (see
Figure 3)
1. Open surge
resistor Rl. 1.
Replace resistor.
Low load inrush
current (see
1. Value of
surge
resistor R1
Figure 3)
increases
(overheating).
1.
Check and
remedy
cause of
overheating.
High load inrush current (see
Figure 3)
1. Shorted
surge resistor Rl.
2.
Defective relay Kl.
1. Replace resistor.
2. Replace relay.
Relay does not cycle (see
Figure 2)
1. Defective
relay K1 (jammed
armature;
open or shorted
relay coil).
1.
Replace relay.
Relay cycle
time too low
(see
Figure 2)
1.
Value of
resistor
R4
increases
(overheating).
2. Defective relay
Kl.
1. Check and remedy cause of
overheating.
2. Replace
relay.
Relay cycle time too
high
(see Figure 2)
1.
Defective timing
capacitor C3
(high
series
resistance).
2. Defective
rectifier D2 in switch-
ing
circuit.
3. Defective
relay Kl.
1. Replace capacitor.
2. Replace
rectifier.
3.
Replace relay.
Low output current (see
Figure 3)
(TROUBLES WHILE RUNNING)
1.
Open reactor Tl.
2. Open thermal protector TP1.
1. Replace reactor.
2: Replace thermal protector.
High output
current (see
Figure 3)
1.' Open cell in rectifier bridge Di.
1. Replace rectifier bridge.
High ripple
current
1. Defective filter capacitor Cl.
2. Defective bridge rectifier Dl.
1.
Replace capacitor.
2. Replace bridge rectifier.
NOTE: Input current (Figure 3) must correlate with output current.
10

LIST OF
MATERIAL
REQUIRED
FOR
OPEN CIRCUIT
STARTING
VOLTAGE
TESTER (FIGURE 1)
Detail
No.
Description
Qty.
Req'd.
Part Number
1
CAPACITOR, 5.0
mfd, 600 vdc (C1) 1
G.E. Type 23F1214 or
2 1/32 by 2 by
5-21/32 inch aluminum
1
Allied No. 43D0084
3
SCREW,
Round hd machine,
8-32NC by 3/8
inch 2
4
BINDING
POST, Dual (J2, J3)
2 H.H.
Smith Type
269RB or
Allied
No. 47D1324
5
6
TERMINAL,
Insulated stand off
SCREW,
Socket hd
machine, 8-32NC by
1/2 inch
4
16
Grayhill Type 18-2
or
Allied
No.
47D5291
7
FOOT, Rubber
4
8
SCREW,
Socket hd machine,
1/4-20NC by
1/2 inch
4
9
PLEXIGLAS, Clear, 3/8
by 5-1/4 by 8
inches
1
10
PLEXIGLAS,
Clear, 3/8 by 4 by 5-1/4
inches
2
11
PLEXIGLAS,
Clear, 3/8
by 4-3/4 by 8
inches
1
12
PLEXIGLAS,
Clear, 3/8 by 5-1/4
by 8 inches
1
13
PLEXIGLAS,
Clear, 3/8 by
4-3/4 by 8 inches
1
14
CABLE ASSEMBLY (J1)
1
Bell
& Howell
No. 40845
15 LUG,
Solder (any suitable
type)
2

LAMP
SUPPLY UNITS
2
DRILL
a TAP
NO.8-32 THD
(2)
I
2-19/32
5-I/4
4-1/2
1-7/8
3/8
3/16—+
5-1/4
8
7 5/8
(4) 1/2 DIA
--- v2
3/16-
1/2 DIA a
1/16)45°
BOTH
SIDES
6
7
_
16 7 16 647
7 1 7 8 - 1 7 4
‘•
2
II II
7-5/8
2
4
AC VOLTS VOLTS
I
(4)3/8 R
AD)
3/8
TYP
z
CD
3/4
1
7/8
1-1/2
11/16 TYP- 0 -1 1- 0
-
7
8
DRILL a TAP
NO.4-40 THD (6)
15
3/16
2-5/32
-1/64
1-5/16
2
REF
(2) 11/64
DIA.
APPLY
DYMOTAPE
CAPTIONS AS SHOWN
LAMP
SUPPLY
UNIT
50 Hz (B&H
013300)
60 Hz (B&H
013310)
4-
J-
1
120 VAC
50/60 Hz
JI
<<
+
RED
-Fi
CI
k - YELLOW
I I
600V. DC
J2 DC VOLTMETER
0-400V
5.0 MFD
0
I,
BLUE_ORI ORN
<lc
•
0+
%
I BLACK
,j3 AC VOLTMETER
0-150V
< I
i< WHITE
0 50/60Hz
i
<1< GREEN
L
-
CABLE
ASSY
B a H NO.40845
12
o+
I
3/4
,.''V.,,..
11/16
co
Figure 1.
Open
Circuit Starting
Voltage
Tester
11-12

LIST OF MATERIAL
REQUIRED FOR
PULSE VOLTAGE TEST BOX
(FIGURE 2)
Detail
No.
Description
Qty.
Req'd.
Part Number
1
BINDING POST,
Dual (J1, J2)
2 H.H.
Smith Type 269RB
or
Allied
No.
47D1324
3
CABLE
ASSEMBLY (J4) 1
Bell &
Howell No.
40845
4
BUSHING, Insulated, thru-panel (TH1, 2 and 3)
3 E.F. Johnson
Type 135-50 or
Allied No.
46Z217
5 Insulator, Cone,
Steatite (TH4)
9 E.F.
Johnson Type
135-501 or
Newark
No. 37F064
6 RESISTOR, Non -inductive, 1K, 5W ±5% (R1 thru
R10)
10
Sprague
Type 453E
or
7
SCREW, Socket hd machine, 10-32 by 1 inch
18
Allied No.
25Z925C
8
PLEXIGLAS,
Clear, 3/8
by 8 by
10 -inches
1
9
PLEXIGLAS,
Clear, 3/8
by 8
by
10
-inches
1
10
PLEXIGLAS, Clear, 3/8 by 4-1/4 by 10 inches 1
11 PLEXIGLAS, Clear, 3/8 by 4-1/4 by 10 inches
1
12
PLEXIGLAS, Clear, 3/8
by 4-1/4 by
7-1/4
inches
1
13
PLEXIGLAS, Clear, 3/8 by 4-1/4
by 7-1/4
inches
1
14
PLEXIGLAS, Clear, 3/8 by 4-1/4
by 9-1/4 inches
1
15 GROMMET,
Rubber, 1/2 inch I.D.
1
16
BEZEL,
Ventilating, 1 -inch diameter
4
17 FOOT, Rubber
4
18
SCREW, Socket hd machine, 1/4-20 by 1/2 inch
4

LAMP SUPPLY UNITS
10
3
I DIA
16
REF
I DIA
1/16
2 DIA
6
4
5/8
TYP
5/8
12
10
16
1-3/8
z
0
-0
/
4-5/8
7
REF
14
,--
,/-
. - T A
i-
---
.1- --i + -
-I- + --
4--
1-
7--- --- I
,
--=''''
4-
-/
--1-_
-_7-*,_-
\
\II
-r
\
1
k 4-
\--(Y
4-
I
\ I I I
I l i
I / 1 \
I ...-
..--- ,
I __ )
I, ('
I
)\,
I `,_
)
1
-\---U
-4 H/ -
_, __ _ _ _ _
/
__ ____> --
-7
i
--
---
>(....
_/
4
.
k-
z
- -
1
- 1 -
- - --
__J__,
_,
) J
---,-7 -
--.7, -- -.
........ i,
'
A
..,- -,--
:---- ---)
17 18
VOLTS
SCOP4
1-7/8
0
I-1/2
0
0
0 -
1-3/4 I -I/¢
<
APPLY DYMOTAPE
-
CAPTIONS AS
SHOWN
0
REF
7
1/8
1-3/
TYP
2-1/2
TYP
1/2
(2
PLACES)
3/4
3/8
R
3/16
TYP
13
LAMP
SUPPLY
UNIT
50
Hz
(Bali
.
N0.0B300)
60
Hz
(Ba H NO.013310)
120 VAC
50/60H 1
J4
I
RED
+
)) ORANGE
R7
R6
R5
R9 R4
RIO
R3
• R2
•
IK 5W 5% RI
R8
YELLOW -
I,
BLACK
I /
I
WHITE
>
I
>
GREEN
31/8
1 1/2—w- 0
-1 1/2
3
L _______
Ba H
CABLE
ASSY
NO.40845
9 1/ 4
1
I 1/2- 01,4
---I 1/24."•-1-1/2-1.
1-3/8
-I-I/2
(3)1/2
DR.
JI
TO SCOPE
(TEKTRONIX
• MODEL
543A
OR
EQUIV.)
0
J2
TO A.C
VOLTMETER
0
0-150
VAC
60 OR 50 H z
4-1/4
0
PLEXIGLASS DETAIL
(9)11/64
DR.
Figure 2. Pulse Voltage Test Box for
Lamp
Supply Unit
13-14

LIST
OF MATERIAL
REQUIRED FOR
INRUSH,
RIPPLE AND DC
CURRENT LOAD BOX
(FIGURE 3)
Detail
No. Description
Qty.
Req'd.
Part Number
1 RECTIFIER,
Silicon control
(D1)
1
G.E. Type C -35-D or
Newark
No. C -35-D
2
HEAT
SINK
(For D1) 1
Wakefield No. NC441K or
Allied No. 60D6533
3
BINDING POST, Dual
(J1, J2, J3)
3 H.H. Smith Type 269RB or
Allied No.
47D1324
4
CABLE ASSEMBLY
(.14) 1
Bell & Howell No. 40845
5
AMMETER, A -C, 0-15A, 4-1/2 inches
(M1) 1
Simpson Type 1359
(No. 3320)
6
RESISTOR, Non -inductive, 25 ohm, 100 W (R1 thru R5)
5
Ohmite
No. 2203
7 RELAY, Mercury, 115 volt coil, 50 amp contacts,
normally -closed (RLY1, RLY2)
2 Newark No. 59F1611
8 SWITCH, Push button, SPST, normally -open (S1, S2)
2
Grayhill
Type 2201 or
Allied No.
56D4872
9 TERMINAL,
Insulated standoff
6 Grayhill
Type 18-2 or
Allied
No.
47D5291
10 SCREW, Socket hd machine, 8-32 by 5/8 inch 16
11 PLEXIGLAS, Clear, 3/8 by 9-1/4 by 14 inches
2
12 PLEXIGLAS, Clear, 3/8 by 7 by 14
inches
1
13 WIRE, Solid copper, 1/8 inch diameter by 3-5/8 inches
2
14
BAR,
CRS, 1/16
by 1-23/32 by
2-11/16 inches
2
15 RIVET (to
suit) 8
16 BAR, CRS, 1/16 by 3/4 by 1-1/32 inch
4
• 17 SCREW, Socket hd machine, 8-32
by 3/8 inch
4
18 FOOT, Rubber
4
19
SCREW, Socket hd machine, 1/4-20 by 1/2 inch
4
20
BEZEL, Ventilating, 1 inch
diameter
4
21
PLEXIGLAS, Clear, 3/8 by 7 by 14 inches
1
22
PLEXIGLAS, Clear, 3/8
by 9-1/4
by 14 inches
1
23
PLEXIGLAS,
Clear, 3/8 by 6-1/4
by
9-1/4 inches
1
24
PLEXIGLAS, Clear,
3/8 by 6-1/4 by 9-1/4
inches
1
25 CORD AND PLUG, 3
-conductor
1
Bell &
Howell No. 31576
26 SCREW, Round hd machine, 6-32 by 1/2 inch
4
2'7 SPACER, 1/4 inch long for No. 6
screw
4

LAMP
SUPPLY UNITS
REF
0
(4)
*
6
-32 TH U
D
3
32
II
I-1/2
TOP
BACK
14 15 16
C) NOT
SHOWN
10
BEZEL HOLE
TYP. (4) PLACES
20
I SOLDER
TYP.
-A-
lt
5
1/4
4 '. 1
I 1
-- 4
I L
REF
4-1/8
5
5/16
I
7
26
I
I
3/8
21
FRONT
(4)3/16 DIA.
24
1/4 WIDE BLACK DYMO TAPE
LEFT
END
(2)
PLACES AS SHOWN
3/8
(2) 31/64
DIA
I I
RIGHT END
(i )
22
BOTTOM
4-1/4
..---
---- ---..."-..
./r . I
0-15
\
AC
AMMETER
\\
3 DIA. \
1
\
1
1r
7 7
. 1 6" : 163r37: 16 "
16
b.( • (
(0)
• —
I I
1-3/8
2-1/32
3-9/16
4-1/8
A.C. D.C.
AC VOLTMETER
c.‘
3/4 I
SCOPE
(0)
•
7/8
./
- 7 - 7 -
t
II
I II
DC AM ET
I
2
3-1/4
5
1/4
I-1/2
27
4-3/8
3/8
1/2
DIA 8
45'
1/16
BOTH S IDES
2
)0 4 - 40
TH'D
14
10
11/16
3/4
2
3
1
1
1/2
7/8
19
TAP (4)
#
6-32 HOLES
IN
DET. 2
18
11/16
TYP.
3/16
APPLY DYMO TAPE
CAPTIONS AS SHOWN
LAMP
SUPPLY
UNIT
50Hz (B&H
013300)
60Hz
(BEM
013310)
1
120 V. AC
50/60 Hz NOTE
Rt
OF RI
THRU Rs
MUST BE
5.1
IL
±0 fl NON
INDUCTIVE
RI 25
ft
R2 25
ft
R3
25 0
RED
R4
2511
R5 25
0
C350
ON
YELLOW
HEATSINK
J1
R Ls('
+ TO
OSCILLOSCOPE
TEKTRONIX 543A
OR
EQUIV.
+
DC
AMMETER
0
J 2 0-10 AMPS
BLUE
MI
DI
0-15
A
RLY2
BLACK
__i(
WHITE
_( [
<
GREEN
N.C.
POWER
CABLE
B&H NO.40845
(2)
1/16
DIA
•
+ AC VOLTMETER
J3
0-150V AC
SI
• 50/60 Hz NO
WHITE
S2
NO
REF REF
15
16
I 1,2
3/8
3/16
2-11/16
3/16
3/16
1
3/8
1-3/8
3/8
14
REF
(2) 1/16 R.
APPROX.
BLACK
117 VAC
POWER CABLE
GRN
B&H
31576
NOTE:
NICKEL
PLATE THIS ASSEMBLY
FOR RUST
PREVENTION.
Figure 3.
Inrush, Ripple and DC
Current
Load Box
15-16

LAMP
SUPPLY UNITS
THERMOCOUPLE
IDENTIFICATION
(See
Figures 4 and 5)
Item No.
Description
1
CENTER —
Bridge
Rectifier Case D1
2
COIL
— A.C.
Reactor T1
3
CORE —
A.C.
Reactor
Ti
4
CASE — Filter
Capacitor C1
5
COIL - Pulse
Transformer T3
6
BRACKET —
Pulse
Transformer T3
7
COIL —
Pulse
Transformer T3
8
COIL
-
Boost
Transformer
T2
9
CORE
—
Boost Transformer T2
10 COIL —
A.C. Reactor T1
11
CORE — A.C. Reactor T1
12
EXPOSED END
— Voltage
Doubler
Capacitor C2
13 AMBIENT AIR (Inside
Enclosure)
14
CASE —
"Klixon"
Thermal
Protector
TP1
- n 8
- 6Th
m
) ®
l0
c)
-4
O
C)
C)
(11
1
O
C)
C I
1
- o
;—
Figure
4.
Thermocouple Location
and
Identification for
50 Hz Unit,
Part No. 013300
2
C)
O
C)
n
I di
9
III I
14
8
0
9
e
10
0
13
e
0
0
O
2
5
- 4
0
0
C)
UI
C)
CM
L
O
1
O
0
C)
cn
0
Figure
5. Thermocouple
Location and
Identification for 60 Hz
Unit, Part No. 013310
17-18