Marantz NR1508, Service Manual

Page: 55 / 146

NJU72343 (AV : U5202)
Pin Function
No. Symbol Function No. Symbol Function
1 AREF Analog reference potential terminal 17 DATA IC control data input
2 ADR Address selection terminal 18 CLOCK IC control clock input
3 InA2 Ach input2 19 VDDOUT Digital power supply output terminal
4 InB2 Bch input2 20 AREF Analog reference potential terminal
5 InA1 Ach input1 21 OutH Hch output
6 InB1 Bch input1 22 OutG Gch output
7 InC Cch input 23 OutF Fch output
8 InD Dch input 24 OutE Ech output
9 InE Ech input 25 OutD Dch output
10 InF Fch input 26 OutC Cch output
11 InG1 Gch input1 27 OutB Bch output
12 InH1 Hch input1 28 OutA Ach output
13 InG2 Cch input2 29 AREF Analog reference potential terminal
14 InH2 Dch input2 30 V- negative power supply terminal
15 MUTE External mute control terminal 31 AREF Analog reference potential terminal
16 REF Digital reference potential terminal 32 V+ positive power supply terminal
NJU72750A (AV : U5201)
Pin Function
No. Symbol Function No. Symbol Function
1 V+ positive power supply terminal 17 DATA IC control data input
2 InA1 Ach input1 18 CLOCK IC control clock input
3 InB1 Bch input1 19 NC -
4 InA2 Ach input2 20 NC -
5 InB2 Bch input2 21 OutB3 Bch output3
6 InA3 Ach input3 22 OutA3 Ach output3
7 InB3 Bch input3 23 REF_B Bch reference potential terminal
8 InA4 Ach input4 24 OutB2 Bch output2
9 InB4 Bch input4 25 OutA2 Ach output2
10 InA5 Ach input5 26 REF_A Ach reference potential terminal
11 InB5 Bch input5 27 OutB1 Bch output1
12 InA6 Ach input6 28 OutA1 Ach output1
13 InB6 Bch input6 29 NC -
14 InA7 Ach input7 30 ADR0 Address selection pin 0
15 InB7 Bch input7 31 ADR1 Address selection pin 1
16 REF Reference potential terminal for BIAS 32 V- negative power supply terminal
In
A1
O
ut
A
In
A2
In
B1
In
B2
O
ut
B
O
ut
C
In
C
O
ut
D
In
D
O
ut
E
In
E
O
ut
F
In
F
In
G
1
O
ut
G
In
G
2
In
H
1
In
H
2
O
ut
H
Co
nt
ro
l L
og
ic
D
AT
A
CL
O
CK
In
A1
In
A2
In
A3
In
A4
In
A5
In
A6
In
A7
In
B1
In
B2
In
B3
In
B4
In
B5
In
B6
In
B7
Ou
tB
1
Ou
tB
2
Ou
tB
3
Ou
tA
1
Ou
tA
2
Ou
tA
3
NJM2595MTE1 (AV
: U5206
)
NJM2595
- 1 -
5-INPUT 3-OUTPUT VIDEO SWITCH
■
GENERAL DESCRIPTION
■
PACKAGE OUTLINE
■
FEATURES
●
5-input 3-output
●
Operating Voltage ± 4.0 to ± 6.5V
●
Operating current ± 15mAtyp. at Vcc= ± 5V
●
Crosstalk -65dBtyp.
●
Internal 6dB Amplifier
●
Internal 75 Ω Driver
●
Bipolar Technology
●
Package Outline DIP16,DMP16
■
PIN CONFIGURATION and BLOCK DIAGRAM
13
9
7
5
3
20k
20k
20k
20k
16
10 14 2
1
15
11
8 12 6 4
6dB
Amp
75 Ω
Driver
S3
S2
S4
S1
20k
20k
20k
S5
S6
S7
Vin1
Vin2
Vin3
Vin4
Vin5
SW3 SW4
SW5 SW1 SW2 V
+
GND V
-
Vout3
Vout2
Vout1
6dB
Amp
6dB
Amp
75 Ω
Driver
75 Ω
Driver
The NJM2595 is a 5-input 3-output video switch. Its switches
select one from five signals received from VTR,TV,DVD,
TV-GAME and others.
The NJM2595 is designed for audio items, such as AV amplifier
and others.
NJM2595D NJM2595M
55
Caution in
servicing
Electrical
Mechanical
Repair Information
Updating