– 5 –
– 6 –
2-2. SCHEMATIC DIAGRAM
Note:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
H
: adjustment for repair.
• Power voltage is dc 9 V and fed with regulated dc power
supply from external power voltage jack (J4).
• Voltages are dc with respect to ground under no-signal
conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: AUDIO
J
: RF
r
IC BLOCK DIAGRAM
IC11 TA2061AF-EL
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
R-CH
IN
NF
VREF
L-CH
IN
AGC T/C
AGC
ON/OFF
F0 ADJ (R)
VCC
L-CH
OUT
ADJ
ON/OFF
AUTO
OFF T/C
GND
F0 ADJ (L)
SURROUND
ON/OFF
R-CH
OUT
LEVEL
DET.
LEVEL
DET.
AGC
MIX AMP
AGC
O.S.M.
Lout = L + K • (L–R)
Rout = R – K • (L–R)
PRE
EMPHASIS
PRE
EMPHASIS
VCO
VCO
BUFFER
BUFFER
VREF
TMR-IF130/IF230R
Содержание TMR-IF130
Страница 2: ......
