JVC TH-A35 - Basic Tuner Operations; Power, Band, Volume, and Tuning

TH-A35
1-18
 2a3020 ( IC 701 ): DC - DC Regulator
 LX171/LX1711 ( IC603 ) :
1.5V
Internal
Regulators
Oscillator
40 / 400 KHz
2
2.30/2.53V
0.7V
1uA
3
4
M2
10 ohm
(
VIN
8
SYNC
7
EN
5
FB
6
COMP
1.22V
Shutdown
Comparator
Frequency
Foldback
Comparator
Error Am plifier
gm = 630uM/Volt
Lockout
Comparator
Current
Sense
Amp llfler
Current
Comparator
GND
Vsw
SB
1
0.7V
SV
CLK
S
R
Q
Q
Slope
Compensation
SLEEP
VREF
V25
CN
PVDD
CP
P+
N+
P-
N-
FAOUT
FBK-
FBK+
VDD
IS-
CLOCK
RPWM
CPWM
EAOUT
EAIN
INAMPOUT
INPUT -
INPUT +
MUT
E
UVLO
&
REFERE
NCE
OUTPUT
DRIVERS
&
LOGIC
FAULT
TIMER
5V
Reference
26
4
1
10
CLK
OSC
SYNC
+
-
220m
V
PVDD
MUX
MUTE
MU
TE
7
14
13
9
11
8
6
5
28
27
25
15
17
FEEDBACK AMP
ERROR AMP
CURRENT SENSE
INPUT AM
P
16
24
23
22
21
20
S
R
Q
Q
CLK
5V
Reference
18
Class-D mono power amplifier controller