JVC KD-S785 Service Manual page 29

LA6574H-X (IC501) :CD driver
1.Terminal layout & brock daiagram
VCC2 1
V05- 2
V05+ 3
V04+ 4
V04- 5
V03+ 6
V03- 7
FR
V02+
V02-
V01+
V01-
VCC1
VIN1
VIN1G
2.Pin function
Pin
Symbol
No.
1 VCC2 CH5 power supplies.
2 VO5- Loading output(-)
3 VO5+ Loading output(+)
4 VO4+ CH4 output terminal(+)
5 VO4- CH4 output terminal(-)
6 VO3+ CH3 output terminal(+)
7 VO3- CH3 output terminal(-)
8 VO2+ CH2 output terminal(+)
9 VO2- CH2 output terminal(-)
10 VO1+ CH1 output terminal(+)
11 VO1- CH1 output terminal(-)
12 VCC1 CH1,2,3,4 power supplies
13 VIN1 CH1 input terminal
14 VIN1G CH1 input terminal
(for gain adjustment)
Thermal Shutdown
CH5
POWER supplise
CH5
CH4
CH3
FR
8
CH2
9
10
CH1
11
CH1.2.3.4
12
22k
POWER
11k
13
14
Function
22k 11k
Signal System Power
3.3VREG (External
PNP Tr)
22k
11k
22k
11k
Pin
Symbol
No.
15 VIN2 CH2 input terminal
16 VIN2G CH2 input terminal(for gain adjustment)
17 VIN3 CH3 input terminal
18 VIN3G CH3 input terminal(for gain adjustment)
19 REG-IN Regulator terminal
20 REG-OUT Regulator terminal
21 VREF-IN Standard voltage input terminal
22 VCC-S Signal system power
23 VIN4G CH4 input terminal(for gain adjustment)
24 VIN4 CH4 input terminal
25 VCONT CH5 output voltage set terminal
26 S-GND Signal system GND
27 FWD CH5 output switch terminal
28 REV CH5 output switch terminal
28 REV
27 FWD
26 S-GND
25 VCONT
24 VIN4
23 VIN4G
22 VCC-S
FR FR
21 VREF-IN
20 REG-OUT
19 REG-IN
18 VIN3G
17 VIN3
16 VIN2G
15 VIN2
Function
KD-S785
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