Simplified Schematic And Level - Teac A-3440 Service Manual

10. SIMPLIFIED SCHEMATIC AND LEVEL DIAGRAMS
OUTPUT FUNCTION
SELECT SELECT
SOURCE SYNC | PLAY
PLAY EQ AMPL. PLAY LINE AMPL. REDUCE-6¢8
0 0 4 R&01 =
ra o t o t 6 ; ©) loutPur)
HEAO 9 9 9 lace @ 8 10K
~6408
RENT, pe Qt ————POWER MUTE
ea OUTPUT AMPL. R
2
SEND
—
2
2
RCV | 3 0
-8d8 | pe 2mw/4n
DECODER!
:
LDECODER; = sync EO AMPL. SYNC LINE AMPL. ; METER APL: 0 |[MONITORIT 8249 Reh
| ©
sa sop | > VU METER
| e
28 SS = RISO
G
"l24B rec amet. 4103
MIC AMPL. p
mic art UNPUT
R413 OMe HI +3
N 3 CODER ©
RCV O
Od8 +0.775V
Fig. 10-1 Simplified Schematic Diagram
PLAYBACK
PLAYBACK
+10
ce)
"'oureur AMPL.
RI47
SYNC
RECORD
RECORD
+10
INPUT] LINE AMPL.
4 —>
¢ 38
120yAtI0N) BIAS 2.3mA OSC 56Vrms
MIC
NOTE: — Playback and Record Controls are Positioned at specified level. Sey
— Each level given in the diagram shows values when 400 Hz specified level is applied.
—0OdB =0.775 V
— Ref. Nos. shown in the diagram relate only to the left channel.
Fig. 10-2 Level Diagrams
24