Sony CDX-CA540X Service Manual page 29

IC401 BD3802F (MAIN Board)
DGND SDA SCL
28 27 26
2
I C BUS
LOGIC
VCC/2
1 2 3
AGND FIL AP1
IC802 MM1175XFF (MAIN Board)
BUS ON
1
OUT
RESET RESET
2
OUT SWITCH
BATT
3
BATT
SWITCH
CLK
4
OUT
VREF
5
DATA
6
IN/OUT
GND
7
MUTE SEL ADJ VCC OUTF1 OUTR1 OUTF2 OUTR2
25 24 23 22 21
VCC
FADER FADER
(0~-58, (0~-58,
VCO
-∞dB) -∞dB)
ON OFF
EFFECT(OFF,6dB
10dB,14dB)
TONE
PASS
BASS,TRBLE,MIDDLE
(-15dB~+15dB,1dB STEP)
VOLUME
(+23~-79dB,-∞dB
1dB STEP)
INPUT GAIN
(0~15dB,1dB STEP)
MUTE
INPUT SELECTOR
(4 STEREO INCLUDE 1 ISOLATION INPUT)
4 5 6 7 8
AN AP2 B1 B2 C1
14 VCC
RESET IN
13
12
BUS ON
11
CLK IN
BATT
10
CHECK
DATA IN
9
DATA OUT
8
CDX-CA540X/CA590X
DS32 DS22
20 19 18 17 16
FADER FADER
(0~-58, (0~-58,
-∞dB) -∞dB)
ON OFF
EFFECT(OFF,6dB
10dB,14dB)
TONE
PASS
BASS,TRBLE,MIDDLE
(-15dB~+15dB,1dB STEP)
VOLUME
(+23~-79dB,-∞dB
1dB STEP)
INPUT GAIN
(0~15dB,1dB STEP)
MUTE
9 10 11 12
C2 D1 D2 DS11 DS21
DS12
15
13 14
DS31
29