Sony STR-DB780 Service Manual

46
STR-DA1ES/DB780
TRIM VOLUME
0-+24dB/
1dB STEP
TRIM VOLUME
0-+24dB/
1dB STEP
5 to 25 DECODER
&
LATCH CIRCUIT
4 to 13 DECODER
&
LATCH CIRCUIT
4 to 16 DECODER
&
LATCH CIRCUIT
24 BIT
SHIFT REGISTER
CIRCUIT
LEVEL SHIFT
CIRCUIT
5 to 25 DECODER
&
LATCH CIRCUIT
4 to 13 DECODER
&
LATCH CIRCUIT
4 to 16 DECODER
&
LATCH CIRCUIT
2VSS
1NC
3TRIM
4TRIM
5TRIM
6OUT
7VRGND
9VRIN
8NC
11CS1
10NC
12GND
13CLK
14NC
26 TRIM
25 TRIM
24 TRIM
23 OUT
22 VRGND
20 VRIN
21 NC
18 CS2
19 NC
17 LAT
16 DATA
15 NC
27 VDD
28 NC
MAIN
VOLUME
0- –95dB/
0.5dB STEP
MAIN
VOLUME
0- –95dB/
0.5dB STEP
IC308 NJM2595D (VIDEO Board)
IC850, 852 NJM2595D (S-VDIEO Board)
15 VOUT2
16 V+
14 SW1
75Ω
DRIVER
6dB
AMP
75Ω
DRIVER
6dB
AMP
11 VOUT3
75Ω
DRIVER
6dB
AMP
13 VIN1
12 GND
10 SW2
9VIN2
3VIN5
4SW3
5VIN4
6SW4
7VIN3
2SW5
1VOUT1
8V–
IC401, 501, 601 CXD9275M (MAIN Board)

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)