Sony TA-2000F - Page 51

SCHEMATIC DIAGRAM
REC OUT BUFFER SECTION
HIGH AND LOW FILTER COMPONENT/
TURNOVER FREQUENCY CHANGEOVER COMPONENT SECTION
105
2sc92e
iQ
we lle
| MUTING SECTION |
ae
Riird
MIC ~
7 ct
mt
eat
pie Tas
VR2
3103 (Gy 2Ki8)
TUNER
TUNER!
LE}
AO.
1
wi B sg301
Q302
2SK23-22 — 2SC926A
MIC AMPLIFIER /PHONO 2 EQUALIZER AMPLIFIER SECTION
cea as
(G
|
H
aunaunas aan L
ine
it
COS,
SRE TRE SW 4 METERLEVEL Sw]
2SC631A 2SC632A 2SC632A 1722
SI3-1 R45 1K
OUTPUT LEVEL CHANGEOVER
SWITCH SECTION
1
©) Hour :
©) BY cure
2210
PRE OUT!
Jatt
PRE OUT2
1302
HEADPHONE,
(SAME AS L—CH)
TF
tbe pach — loan oe
of KSAME AS L-C ae t=
[A
R-CH (SAME AS L=-CH)
vee
2a)
ae
250Ki8)
3208
AUX? %6
vRa
250K(B)
Ref. No. Description
Si FUNCTION (1) SW
(MIC - PHONO 2 - AUX I - AUX 2 - AUX 3
TAPE TO TAPE 1-2, - TAPE TO TAPE 2-1)
S2 FUNCTION (2) SW
(TUNER - FUNCTION (1) - PHONO 1)
$3 TAPE MONITOR SW
(TAPE 2 - SOURCE - TAPE 1)
S4 MODE SW
(CHECK “L” - CHECK “R” - REVERSE
- STEREO - L+R - LEFT - RIGHT)
$5 TONE CANCEL SW
(TONE ON - CANCEL)
Position
MIC
FUNCTION (1)
SOURCE
REVERSE
TONE ON
Sees
TONE TREBLE SW
TREBLE TURNOVER SW
BASS TURNOVER SW
IMPEDANCE SELECTOR SW
(LOW (50 Hz) - OFF - HIGH (9 kHz) - BOTH)
Ref. No.
S12
S13
si4
S15
ae
METER LEVEL SW
(MIC - 0 dB - (-10 dB) - (-20dB))
OUTPUT LEVEL SW
/ Cathode \. Cathode | Cathode
Anode Anode Anode
cereenyy,
D) 1303
CENTER OUT
0906,
eco ekaM oY 6 51.6
15
IRSIS C919
! in 19
25v
| | Be
Feo
é 920
4esv
aera e l
Q902 2SC634 0902 901 | es
O-2 COR-2
POWER SUPPLY SECTION
Note:
All resistance values are in ohms.
k = 1,000, M = 1,000k
All capacitance values are in uF
except as indicated with p,
which means yyF.
All voltages represent an average
value and should hold within
+ 20%.
All voltages are dc measured
with a VOM which has an input
impedance of 20k ohms/volt.
No signal in.
SONY
TA-2000F
© 1971