Sony KP-53XBR300 Service Manual page 78

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K BOARD : IC2105 NJW1103
Lin 72
Rin
73
IN 12
K BOARD : IC2302, 2303 TDA7312
L1 17
L2 16
L3 15
L4 14
R4 10
R3 11
R2 12
R1 13
2
K BOARD : IC2601, 2603 TDA7265
MUTE / ST-BY
– 141 –
BY-PASS
2 Lout
PRO LOGIC DECODER
L
Adaptive Matrix
3 Rout
R
7kHz LPF
&
TRIMMER 5 Cout
Modified B NR
C
S
+ / –
DIGITAL DELAY
L +R
L – R
LPF A/D 16k SRAM D/A LPF
TRIMMER 7 Sout
46 Dout
MCU INTERFACE
48 42 41 17 16 15
15 18 24 21 28 5
SPKR
RB ATT
27 L OUT
L1
MUTE
L2
L3 VOL
BASS TREBLE
L4 8 DIG OUT 2
30 SCL
INPUT
SDA
SELECTOR SERIAL BUS DECODER • LATCHES 29
• GAIN 28 DIGGND
R4
R3 VOL
BASS TREBLE
R2 3 DIG OUT 1
R1
SPKR
ATT
RB 25 R OUT
SUPPLY
MUTE
4 1 9 8 25 22 23 6
K BOARD : IC2602 TDA2052
+VS
2
3
5 6
1
5
L + IN 7
4 L OUT
7
8 L -IN
GND 9
MUTE/
10 R -IN
ST-BY
3
2 R OUT
R + IN 11
4
1 6
R-VS L-VS
K BOARD : IC2301 NJM4558D
1 8
2 7
3 6
4 5
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