JVC ks-fx834r Service Manual page 15

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BA4905-V3 (IC901) : Regulator
1.Terminal layout
2.Block diagram
TE
L 13942296513
RESET
3.Pin function
Pin no.
1
2
3 COMP output
4
5
6 AUDIO output
7
8
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9
10
11
.
12
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1 2 3 4 5 6 7
EXT
1 2 3 4
RESET COMP
EXT ACC
Symbol
RESET If VDD voltage becomes 4V or less.RESET output becomes low level.
EXT output 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.
ACC Control of the COMP output by inputting voltage.
VDD output 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.
CD output This output voltage is 8.0V, and max output current is 1A.
This voltage supply for CD.
CTRL Output selector of CD. AUDIO, ILM and EXT.
VCC To be connected with the BACK UP of car.
ILM output This output voltage is 10V, and max output current is 500mA.
x ao
y
Output voltage is adjustable.
AJ Putting a resistance between ILM and AJ or between AJ and GND
i
makes ILM output voltage adjustable.
GND Ground.
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8 9 10 11 12
Q Q
3 6 7 1 3
5 6 7 8
VDD 5.7V CD 8V
AUDIO 9V CTRL
Function
u163
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2 9 9 4 2 8
REGULATOR
1 5 0 5 8 2 9 9 4
37K
5K
9 10 11 12
VCC AJ
ILM 10V GND
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KS-FX834R
9 9
2 8 9 9
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