Sony STR-DB840 Service Manual

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FORMAT
CONVERTER
AUDIO
INTERFACE
INPUT
CIRCUIT
OUTPUT
CIRCUIT
LOOP1 LOOP0/SDA/CDTI DIF1/SCL/CCLK DIF0/CSN P/SN MCLK DZF1 AVSS AVDD VREFH VCOM
DZF2
RIN+
RIN–
LIN+
LIN–
ROUT1
LOUT1
ROUT2
LOUT2
ROUT3
LOUT3
DEM1 DEM0
TVDD
DVDD
DVSS
PDN
ICKS2 ICKS1 ICKS0
CAD1 CAD0
SDOS
I2C
SMUTE
BICK
LRCK
SDTI1
SDTI2
SDTI3
SDTO
DAUX
DFS
IC1402 IDT71V016S15PH-AUTL (DIGITAL Board)
IC1403 TC74VHC367FT (EL) (DIGITAL Board)
IC2002 BA7622 (OSD Board (DB940))
IC1503 AK4527 (DIGITAL Board)
IC2006, 2008 LA7213 (OSD Board (DB940))
2
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64K x 16
MEMORY
ARRAY
SENSE AMP
&
WRITE
PRIVER
HIGH
BYTE
I/O
BUFFER
LOW
BYTE
I/O
BUFFER
CHIP ENABLE
BUFFER
WRITE ENABLE
BUFFER
OUTPUT ENABLE
BUFFER
ROW/COLUMN
DECODER
BYTE ENABLE
BUFFER
1
A3
A2
A1
A0
CS
I/O 0
I/O 1
I/O 2
I/O 3
VDD
VSS
I/O 4
I/O 5
I/O 6
I/O 7
WE
A15
A14
A13
A12
NC
A4
A5
A6
A7
OE
BHE
BLE
I/O 15
I/O 14
I/O 13
I/O 12
VSS
VDD
I/O 11
I/O 10
I/O 9
I/O 8
NC
A8
A9
A10
A11
NC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
G1
1A
1Y
2A
2Y
3A
3Y
GND
VCC
G2
6A
6Y
5A
5Y
4A
4Y
1
SYNC
SEP
V-SYNC
SEP
2 3
4 5
V IN
HD
VSS
VD
VDD
1
2
3
4
8
7
6
5
GND
IN1
IN2
IN3
OUT1
OUT2
OUT3
VCC
75OHM
DRIVER
75OHM
DRIVER
75OHM
DRIVER

Sony STR-DB840 Specifications

General

Digital inputs	2 Optical, 1 Coaxial
Power output	100 watts per channel into 8Ω (stereo)
Frequency response	10Hz to 100kHz
Total harmonic distortion	0.09%
Input sensitivity	2.5mV (MM), 200mV (line)
Speaker load impedance	8 ohms
Dimensions	430 x 157mm
Tuning range	FM, MW
Video Connections	composite