Sony CDX-CA680X Service Manual page 28

CDX-CA680X/L580X
IC401 BD3802F-FE2
D-GND SDA SCL MUTE SEL ADJ
28 27 26 25 24
2
I C BUS
VCO
LOGIC
ON
EFFECT (OFF,6dB,
10dB,14dB)
TONE
PASS
(4 STEREO INCLUDE 1 ISOLATION INPUT)
VCC/2
1 2 3 4 5
A-GND FIL BUS- AN BUS- TU-
RCH LCH RCH
OUT- OUT- OUT- OUT-
FR RR FL RL
VCC DS32 DS22 DS12
23 22 21 20 19 18 17 16 15
VCC
FADER FADER FADER FADER
(0~-58, (0~-58, (0~-58, (0~-58,
-∞dB) -∞dB) -∞dB) -∞dB)
OFF ON OFF
EFFECT (OFF,6dB,
10dB,14dB)
TONE
PASS
BASS,TREBLE, MIDDLE BASS,TREBLE, MIDDLE
(-15dB~+15dB,1dB STEP) (-15dB~+15dB,1dB STEP)
VOLUME VOLUME
(+23~-79dB,-∞dB (+23~-79dB,-∞dB
1dB STEP) 1dB STEP)
INPUT GAIN INPUT GAIN
(0~15dB,1dB STEP) (0~15dB,1dB STEP)
MUTE MUTE
INPUT SELECTOR
6 7 8 9 10 11 12 13 14
TU- CD- CD- D1 D2 DS11 DS21 DS31
LCH RCH LCH
OUT-FL-
OUT-FL+
OUT-RL-
OUT-RL+
S-GND
OUT-RR+
OUT-RR-
OUT-FR+
OUT-FR-
ANT-REM
AMP-REM
SERVO5V
MECH6V
B.UP+B
28 28
IC750 TDA8588J/N1
TAB 1
3 2
I C BUS
FL
5
7
RL
9
IN-RL 11
13
PROTECTION/
DIAGNOSTIC
IN-RR 15
VP
17
RR
19
21
STANDBY/
FR
MUTE
23
CHIP DETECT/
DIAGNOSTIC
BATTERY TEMPERATURE
DIAG 25
DETECTION PROTECTION ENABLE
LOGIC
SWITCH
27
29 SWITCH
31
33
VP 35
REFERENCE
VOLTAGE
LOADDUMP BACK-UP
37
REGULATOR PROTECTION SWITCH
2 SDA
4 SCL
6
VP2
8
PGND3
10 SVR
12 IN-FL
14 IN-FR
16
BEEP
18 PGND2
20 VP1
22
STB
24 PGND1
26 RST
28 CRES
30 AUDIO8.3V
32 GND
34 PANEL+B
36
CBU