Philips PM 5775 Manual page 71

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PIER
et oe "I
TIME
|S1
NE
1 RV1
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1
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1
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TABLE
GATE
SYNC.
OUTPUT PULSE
VIBRATOR
aT
AMPLIFIER
pa
w
)5...Z208
2212, 2213
2215, | Z220
1, 2216
59
|
? | sync.our
P2
Terminate
with
50.2 and check
sync. out pulse
No output
Check
waveform
®@
Check
supply
voltages
Faulty | Check
waveforms
@@OOO
Check
amplifier Z
Check
multi vibrator I
nding procedure
ils
ia ae
ahs
ears 1
DELAY
'!S2
|
FINE
| RV2
Sects: cane Trc-c-
ef
2222...2226
2221
2235...2237
2227...2234
Faulty
a
OK
Check_ampl. WI.
amptWand
width-
circ.
IX ,compare
width-circuit XX |
with delay-circult
Check diff. ampl.Z
land delay-circuit WZ,
compare
delay-circuit WZ
with width-circuit IX
Check
waveform
THE ENCIRCLED
FIGURES
REFER
TO THE PULSE DIAGRAM
PHOTOGRAPHS
eee
SINGLE / |
DOUBLE:
Hepes =pSSases
WIDTH
—'S3
Seeeseeieen 3
FINE
= 'RV3
2242
2248...2255
DIFF AMPL.
DELAY
DIFF AMPL.
DIFF AMPL.
orn
AMPLIFIER
ig
a4
wl
vw
vO
x
x
2238...Z241
2243...2247
2256...2258
Check
amplifier X
Check
waveform
@
precio,
Son stat ae
eR Fue
RV4_
| AMPLITUDE !
| AMPLITUDE |
i
pe
' NORMAL/ INV. |
i
IN S5OR
|
IN 502;
ti
1 +and-
| !
FINE
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|
OFFSET
1
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ot
L-~---7----p--4
Pee
ae: Pore
b----+- Into
ee 4
'
1
1
H
1
'
4
hoa
2343
'
pe
we
sit
2339, 2340
1
|
1
i
|
|
[CURRENT
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ee
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SOURCE
Sere
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r
1
i
POS. PULSE
+ an
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OUT. XV
xvIr
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1
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et
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a
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1
|
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q
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eg
:
|
HORMAL/INN.
DIFF AMPL.
DRIVER
OUTPUT
ATTENUA -
+and- || |
STAGE
TOR
S
XI
xIL
xm
x
XVI
Z301...2324
Z326, 2327, 2329,Z330,
Z 332, Z336,
RE 301, RE302
PL
Check
waveform
®
Check
waveform
@
Check
diff.
amplifiers
Z 302...2310
Check
diff. |
amplifiers
|
Z 313 ...Z 323
Check
waveform
@
Z334,2335,Z342
Check
Faults as rega
output XIV
delay, width,
amplitude and
waveform dist
Check driver XIL
and output XIV
No output
current source XY
Faulk
Check DC offset
aulty | by turning RV4
waveform
Check
sync
out
pulse (6) at P2 .
Check
supply voltages
Faulty
Check if short
circuit exists,
check attenuator
Check
power supply

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