Sony STR-DB870 Service Manual

40
STR-DB870/DB1070
IC401, 501, 601, 701 TC94A07P (MAIN Board)
TRIM VOLUME
0-+24dB/
1dB STEP
TRIM VOLUME
0-+24dB/
1dB STEP
DECODER
&
LATCH CIRCUIT
DECODER
&
LATCH CIRCUIT
DECODER
&
LATCH CIRCUIT
24 BIT
SHIFT REGISTER
CIRCUIT
LEVEL SHIFT
CIRCUIT
DECODER
&
LATCH CIRCUIT
DECODER
&
LATCH CIRCUIT
DECODER
&
LATCH CIRCUIT
1VSS
2TRIM
3TRIM
4TRIM
5OUT
6VRGND
7IN
8CS1
9GND
10CLK
19 TRIM
18 TRIM
17 TRIM
16 OUT
15 RGND
14 IN
13 CS2
12 LAT
11 DATA
20 VDD
MAIN
VOLUME
0- –85dB/
1dB STEP
MAIN
VOLUME
0- –85dB/
1dB STEP
IC751 NJM2145D
(S-VIDEO Board (US and Canadian models))
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
INH
INH
INPUT
CIRCUIT
OUTPUT
CIRCUIT
OUTPUT
CIRCUIT
OUTPUT
CIRCUIT
VCC
OUT1
IN4
IN3
IN2
OUT3-1
OUT3-2
OUT3-3
GND
INH1
INH2
IN1
NC
OUT2-1
OUT2-2
OUT2-3
IC1101 PCM1800E/2K (DIGITAL Board)
SINGLE-END
DEFERENTIAL
CONVERTER
REFERENCE
SINGLE-END
DEFERENTIAL
CONVERTER
DIGITAL ∑
MODULATOR
DIGITAL ∑
MODULATOR
1/64
DECIMATION
FILTER
&
LOW-CUT
FILTER
CLOCK/
TIMING CONTROL RESET/
POWER CONTROL
SERIAL I/O
INTERFACE
&
MODE/FORMAT
CONTROL
LIN
V REF 1
REFCOM
V REF 2
RIN
RSTB
FMT0
BYPASS
FMT1
MODE1 MODE0
FSYNC
1 2
3
4
5 6 87 9
1110 12
AGND VCC C PR C NR C PR C NR DGND SYSCL
K
DOUT BCK LRCK VDD
24 23 22 21 20
19 17
16 15 14 13
18

Sony STR-DB870 Specifications

General

Brand	Sony
Model	STR-DB870
Category	Stereo Receiver
Language	English