Hitachi SR-2004 - Audio Circuit Alignment; Idle Current Adjusting Points; Test Conditions

HITACHI SR-2004
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FM Signal generator
Generateur de signal FM
AI:. VOltmeter
11 courant alternatif Oscilloscope
Volt metre
o[±lIE
Model SR-2004
8J
S
FM Stereo
kl 0 R-.
ANT. DUMMY
...1..0 ..... Lr\ _~
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Signal
ANT.
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1 lPF~I'V'IN OUT
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75Q J=
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generator
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Fig. 17 FM MPX alignments (Step. 11)
Reglage de MPX FM (Operation 11)
AUDIO CIRCUIT ALIGNMENT· REGLAGE DE CIRCUIT DE SON
Fig. 19
DC volt meter
0711
+ IolII "+BlL)
~OUT
• ~ .. -BlL)
• • .. +B!HI
• • .. -B iHl
Fig. 18
R745R
000
D~
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[ [
MAIN P.W.B.(L)
000
~D
o
MAIN P.W.B.(R)
R745L IDLE CURRENT ADJUSTING POINT
IDLE
CURRENT ADJUSTING POINT
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Test conditions
FUNCTION Free
VOLUME Minimum
Item Measuring instrument Point to be measured Adjust
Value adjusted
Idle current
DC voltmeter Fig. 18 R745L,R
lImV ±4.4mV
(SOmA ±20mA)
Conditions pour les essais
FUNCTION Libre
VOLUME Minimal
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Designation Appaeil de mesure
Point
de mesure Reglage
Valeur
adjustee
Courant dewatte
Voltmetre
aD.C.
Fig. 18
R745L,R
IlmV ±4,4mV
(SOmA ±2OmA)
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