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KA-94 KA-94
BLOCK & LEVEL DIAGRAM/CIRCUIT DESCRIPTION
ADJUSTMENT/REGLAGES/ABGLEICH
BLOCK & LEVEL DIAGRAM
whiten Sane
ADJUSTMENT
S4
Q
METER
CIRCUIT
INPUT
OUTPUT
SETTINGS
SETTINGS
Set the controls
and switches
as follows:
POWER:
ON
SPEAKER:
Connect
a DC
AMPLIFIER
| ALIGNMENT
SETTINGS
POINTS
ALIGN FOR
FIG,
B
TAPE A SUBSONIC LORDNESS
VOLUME BALANCE
IDLE
voltmeter across
VOLUME: 0
VR1 (L)
cp @
ve
CURRENT
CP1 (L)
VR2 (R)
CP2 (R)
TUNER @——-——__-
LIMITER
LEVEL
DETECTOR
REGLAGES
REC Gs
SPEAKER
SW
$3
TAPE A
SPEAKERS
PLAY @
Régler
les controles
et
les boutons
comme
suit:
POWER?
ON
SPEAKER:
B
Connecter
un
REC
5
A
PHONES
COURANT
DE
voltmétre
de CC sur
VOLUME:
0
VR1 (G)
TAPE B
POLARISATION
CP1
(G)
VR2
(D)
PLAY @
--~
cP2 (D)
| 150 mvi25 k:) os
IC1 (1/2)
MIC Mix
ABGLEICH
EINGANGS-
NR,
GEGENSTAND
EINSTELLUNG
Die Regler
und Knopfe
wird
folgt
einstellen?
AUSGANGS-
VORSTARKER
EINSTELLUNG
EINSTELLUNG
POWERS
ON
SPEAKER:
B
Einen
Gleichspannungs-
ABGLEICH-
PUNKTE
ABGLEICHEN FUR
ABB,
CIRCUIT DESCRIPTION
Component function
Control unit (X11-2110-10)
;
LEERLAUFSTROM
-
messer
tber
VOLUME:
0
YR1
(L)
9nV
(a)
Components
Functions
Operations
CP1 (L)
VR2 (R)
iC1
| EQ amp
cP2 (R)
ansch] ieBen
1C2
| TONE amp
Q1- 04
| Meter circuit
Rectifies the main amp output and is controlled by the range select switch.
Q5
For backlight lamp
Main amp unit (XO07-2210-10)
Components
Functions
Operations
Q1-Q4
1st stage differential amp
Class A amp
Q5 - Q8
2nd stage differential amp
Class
A amp
Q9 - 012
Class A amp
Q13 -Q16
Driver amp
Q17 - Q20
Power amp
Q21 - Q24
Level detection
Operates as a current limiter for final protection in overload drive.
Q27
AVR
For Class
A amp
Q38 - Q41
AVR
043, Q44
| BIAS amp
IC1
Protection IC
Operates when amp mulfunctions Relay OFF.
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