JVC KD-S570 Service Manual

KD-S570/KD-S620
1-18
LA6557-X(IC541) : Servo BTL driver
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
- +
- +
- +
- +
- +
- +
- +
FR
FR
Signal system
power
CH1,2
POWER
POWER
Output
control
MUTE is as follows
High : output ON
Low : output OFF
Input
11k
11k
11k
11k
22k
22k
22k
22k
Mute
Level
shift
Level
shift
Level
shift
Level
shift
CH3,4,5
CH5
CH4
CH3
CH2
CH1
VCC2 V05- V05+ V04+ V04- V03+ V03- FR V02+ V02- V01+ V01- VCC1 VIN1 VIN1G
REW FWD S-GND MUTE VIN4 VING4 VCC-S FR
VREF-IN REG-OUT REG-IN VIN3G VIN3 VIN2G VIN2
Thermal shutdown
1. Block diagram
2.Pin function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
VCC2
V05-
V05+
V04+
V04-
V03+
V03-
V02+
V02-
V01+
V01-
VCC1
VIN1
VIN1G
VIN2
VIN2G
VIN3
VIN3G
REG-IN
REG-OUT
VRFE-IN
VCC-S
VIN4G
VIN4
MUTE
S-GND
FWD
REV
Power for channels 3,4, and 5 (VCC1 and VCC-S short-circuited)
Loading output (-)
Loading output (+)
Output pin (+) for channel 4
Output pin (-) for channel 4
Output pin (+) for channel 3
Output pin (-) for channel 3
Output pin (+) for channel 2
Output pin (-) for channel 2
Output pin (+) for channel 1
Output pin (-) for channel 1
Power for channels 1 and 2 (BTL), (VCC-S and VCC2 short-circuited)
Input pin for channel 1
Input pin for channel 1 (for gain control)
Input pin for channel 2
Input pin for channel 2 (for gain control)
Input pin for channel 3
Input pin for channel 3 (for gain control)
Regulator pin (External PNP base)
Regulator pin (External PNP collector)
Reference voltage input pin
Signal system power (VCC1 and VCC2 short-circuited)
Input pin for channel 4 (for gain control)
Input pin for channel 4
Output ON/OFF, channels 1 to 4 (BTL AMP)
Signal system GND
5CH(VL0) Output change pin (FWD), Logic input for loading block
5CH(VL0) Output change pin (REW), Logic input for loading block
Pin
No.
Pin
Name
Description

JVC KD-S570 Specifications

General

Brand	JVC
Model	KD-S570
Category	Car Receiver
Language	English