Sony STR-DB1070 - Fm Stereo/fm-am Receiver Service Manual page 40

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