JVC KD-SX950 Service Manual page 13

BA4905-V3 (IC961) : Regulator
1.Terminal layout
1
2.Block daigram
EXT
RESET
1
RESET
3.Pin function
Pin no. Symbol
1 RESET
2 EXT output
3 COMP output
4 ACC
5 VDD output
6 AUDIO output
7 CD output
8 CTRL
9 VCC
10 ILM output
11
12 GND
2 3 4 5 6 7
2 3 4
COMP VDD 5.7V
EXT ACC
If VDD voltage becomes 4V or less.RESET output becomes low level.
This output voltage is approximately 0.5V lower than VCC. and max
output current is 300mA.
A voltage supply for ACC block. This output voltage is approximately
0.7V lower than VDD'S. The max output current is 100mA.
Control of the COMP output by inputting voltage.
This output voltage is 5.7V, and max output current is 100mA.
This voltage supply is for microcomputer. Whenever back up voltage
supply is connected, the output keeps on running.
This output voltage is 9.0v, and max output current is 500mA.
This voltage supply for AUDIO.
This output voltage is 8.0V, and max output current is 1A.
This voltage supply for CD.
Output selector of CD. AUDIO, ILM and EXT.
To be connected with the BACK UP of car.
This output voltage is 10V, and max output current is 500mA.
Output voltage is adjustable.
AJ Putting a resistance between ILM and AJ or between AJ and GND
makes ILM output voltage adjustable.
Ground.
8 9 10 11 12
5 6 7 8
CD 8V
AUDIO 9V CTRL
Function
REGULATOR
37K
5K
9 10 11 12
VCC AJ
ILM 10V GND