Sony STR-DB840 Service Manual

44
IC253 NJM2145D (S-VIDEO Board (US, Canadian))
IC301 TC9273N-004 (MAIN Board)
IC303 TC9273N-014 (MAIN Board)
IC330 TC9273N-013 (MAIN Board (DB940))
IC1502 TC9273F-012 (EL) (AU SW Board)
IC414-416 TC9299P (MAIN Board)
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
1
2
3
4
5
16
15
14
13
12
6
7
8
11
10
9
CK
GND
CS1
DATA
STB
CS2
A-GND
NC
IN
OUT
VSS
A-GND
NC
IN
OUT
VDD
L-CH
DATA
LATCH
CIRCUIT
LEVEL
SHIFT
CIRCUIT
SHIFT
REGISTER
(13bit)
STROBE
GENERATOR
CIRCUIT
LEVEL
SHIFT
CIRCUIT
R-CH
DATA
LATCH
CIRCUIT
R-ch
L-ch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VSS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
GND
CK
VDD
STB
DATA
10BIT
LATCH
CIRCUIT
(R-CH)
10BIT
LATCH
CIRCUIT
(L-CH)
LEVEL SHIFT & SHIFT REGISTER

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