Panasonic SA-HT280 Service Manual download

Manual type:Service Manual
Pages:40
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Page 1 of 40
19
20
21
22
23
AM
MIX
12
LEVEL
DET
FM IF
S-
CURVE
2
3
REG
4
13
AGC
COMP.
6
8
11
10
AM
RF
AMP
AM
IF
AM/FM
IF
BUFFER
24
1
FM
DET
AM
OSC
BUFF.
ALC
Tuning
Drive
18
FM ANT
RF AMP
FM
MIXER
LOCAL
OSC
9
Vcc
+B(FM)
+B3
AM
IFT
1
20
7.2MHz
XIN
XOUT
CE
2
3
DI
4
CL
D0
5
9
8
7
10
STRQ
SDC
FM
15
V
DD
16
PD
IFIN
11
LW
1/2
14
13
FM IN
AM IN
+B3
+B5
+B(FM)
SD
TCE
TDT
IF DATA
17
LA1844
FM / AM I F AMP,
DET / AM OSC,
MIX / FM MPX
15
16
VCO
FF
FF
FF
AM
DET
AM
6
MONO
12
19
Vss
POWER
ON
RESET
LC72131M
PLL FREQUENCY
SYNTHESIZER
+B3
GND
5
7
ST
MONO
FM/AM
SD
FMDET
FM IF
IN
OSC
OUT
AFC
OSC
AM RF
IN
AGC
AM
OUT
DET
OUT
PILOT
IN
MPX
IN
PILOT
OUT
Lch
14
Rch
17
18
AIN
AOUT
AM
ANT
COIL
AM
OSC
COIL
AM ANT
+B3
STRQ
AM IF
IN
AM
MIX
OUT
Rch
IFT
+B(FM)
+B(FM)
+B(FM)
Z120 TUNER UNIT (RAN0001MM)
BUFFER
AMP
FM IF
AMP
PHASE
DET.
STEREO
SW
DECODER
PILOT
CANCEL
PILOT
DET
UNIVERSAL
COUNTER
DATA SHIFT
REGISTER LATCH
12 BIT PROGRAMMABLE
DIVIDER
SWALLOW COUNTER
1/6,1/17 4bit
PHASE DETECTOR
CHARGE PUMP
REFERENCE
DIVIDER
POWER
SUPPLY
(FM:ON)
TCK
BUFFER
AMP
BUFFER
AMP
BUFFER
AMP
Sample
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