Main Unit (1/2) - Marantz SR5008 Service Manual

 
 
BLOCK DIAGRAM
NJW1194A (AUDIO : IC484,IC489)
 
 
 
 
 
 
 
 
NJM2586AM (VIDEO : IC5003)
  

  
  
WIDE BAND 3-INPUT 1-OUTPUT 3-CIRCUIT VIDEO A
GENERAL DESCRIPTION
The NJM2586A is a wide band 3-input 1-output 3-circuit video

amplifier. It is suitable for Y, Pb, and Pr signal because frequency
range is 50MHz.The NJM2586A is suitable for AV receiver, STB,
and other high quality AV systems.
FEATURES

Operating Voltage
Wide frequency range
Internal 3 input-1output 3-circuit video switch
Internal 6dB Amplifier

Internal 75Ω Driver Circuit (2-system drive)
Power Save Circuit
Bipolar Technology
Package Outline
BLOCK DIAGRAM
  
CH1 IN1
1
Bias
Cont1
SW1
2
Cont2
CH1 IN2
3
Bias
SW2
4
CH1 IN3 5
Bias
+
V 1 6
CH2 IN1 7
Bias
GND
8
CH2 IN2
9
Cont2
Bias
10
CH2 IN3
Bias
SSOP20-C3
www.audiodna.sk

 
  
±4.5 to ±5.5V
0dB at 50MHz typ.
SDIP22, SSOP20-C3 (under development)
6dB
75Ω
CH1 OUT
20
Amp Driver
19 PS
Cont1
6dB
75Ω
CH2 OUT
18
Amp Driver
+
17 V 2
Cont1
6dB
75Ω
CH3 OUT
16
Amp Driver
-
V 2
15
CH3 IN1
14
Bias
-
V 1
13
CH3 IN2
12
Cont2
Bias
CH3 IN3
11
Bias
171
PACKAGE OUT
 
NJM2586AVC3

  
CH1 IN1
1
Bias
Cont1
SW1
2
Cont2
CH1 IN2
3
Bias
SW2 4
CH1 IN3
5
Bias
+
6
V 1
CH2 IN1 7
Bias
GND
8
CH2 IN2
9
Cont2
Bias
10
GND
CH2 IN3
11
Bias
SDIP22
N
6
A
Cont1
6
A
Cont1
6
A