Sony STR-DB780 Service Manual

1717
STR-DA1ES/DB780
5-5. BLOCK DIAGRAM – DISPLAY/KEY CONTROL Section –
REMOTE
CONTROL
RECEIVER
IC1711
I/O BUFFER
Q1607
D1603
CONTROL A1 II
J303
Q810
S1704
S1702
42 – 31
FL1601
FLUORESCENT
INDICATOR
TUBE
F1
F2
SEG1 – SEG12
GRID1 – GRID12
S1901 – 1909
S1914 – 1918
S1921 – 1928
S1931 – 1937
SYSTEM CONTROLLER
IC1601 (4/5)
39
A/D1
40
A/D2
41
A/D3
54 SIRCS
61DIN
62CLK
63FL STB
56POWER KEY
38
A/D0
65 CONTROL A1 IN
14 DATA
15 CLK
16 LATCH
46 FUN LAT SW
64 CONTROL A1 OUT
7DIN
8 CLK
9 STB
A
(Page 13)
DATA, CLK
M
(Page 15)
DATA, CLK, LAT
L
(Page 15)
DATA, CLK, LAT
D
(Page 14)
DATA, CLK, LAT
DATA
CLK
LAT
DATA
CLK
LAT
DATA
CLK
LEVEL SHIFT
IC1602
I / 1
28
SP SWITCH/
FLASH1
SPEAKERS ON/OFF
(JOG DIAL)
FUNCTION
58JOG (A)
57JOG (B)
86FUNC (A)
85FUNC (B)
60VOL (A)
59VOL (B)
MASTER
VOLUME
ROTARY
ENCODER
RV1601
ROTARY
ENCODER
RV1801
ROTARY
ENCODER
RV1901
FLOURESCENT INDICATOR TUBE DRIVER
IC1600
9
10
2
1
13
12
8
3
11
LEVEL SHIFT
IC804
9
10
2
1
13
12
5
4
8
3
11
6
LEVEL SHIFT
IC805
42 – 31
2CH LED31
LED DRIVE
Q1603
D1603
2CH ST
AFD LED
32
LED DRIVE
Q1602
D1602
AUTO DEC.
MODE LED
47
LED DRIVE
Q1612
D1612
MODE
DCS LED26
LED DRIVE
Q1601
D1601
DIGITAL CINEMA SOUND
INPUT LED
29
LED DRIVE
Q1599
D1599
INPUT MODE
MILTI LED
30
LED DRIVE
Q1604
D1604
MULTI CH DIRECT

Sony STR-DB780 Specifications

General

Type	Stereo Receiver
Total Harmonic Distortion	0.09 %
Digital inputs	2 Optical, 1 Coaxial
Weight	10.5 kg
Video inputs	composite
Video outputs	1 composite, 1 S-Video
Output Power	100 Watts (8 Ohms, 20 Hz - 20 kHz, 0.09% THD)
Signal-to-Noise Ratio	96 dB (Line in)
Input Sensitivity	150 mV (Line in)