Ta2068N (Ic301) : Rec/Pb. Amplifier - JVC RC-BZ5LB Service Manual

RC-BZ5LB/BZ5RD
RC-BZ6BU

TA2068N (IC301) : Rec/PB. amplifier

1. Terminal layout
AGC 1
PBO1 2
PBNF1 3
REC1 4
PBIN1 5
VREF 6
VSS 7
PBIN2 8
REC2 9
PBNF2 10
PBO2 11
MICNF 12
2. Block diagram
19
13
12
REF. AMP
6
7
1-24
RAIN1
24
MICSEL
23
CDIN1
22
P/R
21
OUT1
20
VCC
19
OUT2
18
SEL
17
CDIN2
16
TAPE
15
RAIN2
14
MICIN
13
5 3 2
NAB AMP1
–
46.5
+
BUF. AMP A1 BUF. AMP A1
MIC AMP1
MUTE
–
19.5
+
ON
NAB AMP2
BUF. AMP A2
+
46.5
–
8 10 11
24 22
RADIO
TAPE
LINE
+
–
TAPE
BUF. AMP B1
+
TAPE
–
LINE
BUF. AMP B2
TAPE
RADIO
14 16 15
MONITOR AMP 1
MUTE
20
7
ON
REC AMP1
ALC1 4
26
1
DET
REC AMP2
ALC2 9
26
MONITOR AMP
2
ON
18
7
MUTE
L O G I C
17 21 23