Sony XR-CA665EE Service Manual page 22

XR-CA665EE
• IC Block Diagrams
– MAIN Board –
IC301 HA12231FP
20 19 18 17 16 15 14 13 12
INPUT
AMP
LOW PASS
MA
FILTER
RECT
INPUT
AMP
1 2 3 4 5 6 7 8 9
IC401 BD3802F-FE2
OUT- OUT-
FR RR
D-GND SDA SCL MUTE SEL ADJ VCC
28 27 26 25 24 23 22 21 20
VCC
FADER FADER FADER
(0~-58, (0~-58, (0~-58,
2
I C BUS
VCO
-∞dB) -∞dB) -∞dB)
LOGIC
ON OFF ON
EFFECT (OFF,6dB, EFFECT (OFF,6dB,
10dB,14dB) 10dB,14dB)
TONE TONE
PASS PASS
BASS,TREBLE, 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)
VCC/2
1 2 3 4 5 6 7 8
A-GND FIL BUS- AN BUS- TU- TU- CD-
RCH LCH RCH LCH RCH
IC351 LB1930M-TLM
VCC
1
BUFFER
NC 2
11 IN1 3
MOTOR
CONTROL
DRIVE
CIRCUIT
CIRCUIT
IN2 4
MS
BUFFER
S-GND
5
10
OUT- OUT-
FL RL
DS32 DS22 DS12
19 18 17 16 15
FADER
(0~-58,
-∞dB)
OFF
BASS,TREBLE, MIDDLE
(-15dB~+15dB,1dB STEP)
VOLUME
(+23~-79dB,-∞dB
1dB STEP)
INPUT GAIN
(0~15dB,1dB STEP)
MUTE
9 10 11 12 13 14
CD- D1 D2 DS11 DS21 DS31
LCH
IC581 BA8270F-E2
10 NC
BUS ON
BUS ON
1
SWITCH
9 OUT1
RESET
8 NC
RST 2
SWITCH
7 OUT2
BATTERY
6 P-GND BATT 3
SWITCH
CLK 4
VREF 5
DATA 6
GND 7
22 22
IC751 TDA8588J/N1
TAB
1
14 VCC
OUT-FL-
3
13 RST
12 BUS ON
11 CLK IN OUT-FL+ 5
10 BU IN
OUT-RL-
7
9
OUT-RL+
9 DATA IN
IN-RL
11
8 DATA OUT
S-GND
13
PROTECTION/
DIAGNOSTIC
IN-RR 15
OUT-RR+ 17
OUT-RR-
19
OUT-FR+ 21
OUT-FR- 23
CHIP DETECT/
DIAGNOSTIC
DIAG 25
ANT-REM SWITCH
27
AMP-REM 29 SWITCH
SERVO5V
31
MECH6V 33
VP 35
REFERENCE
VOLTAGE
B.UP+B
37 REGULATOR
2
SDA
2
I C BUS
4
SCL
FL
6
VP2
RL 8
PGND3
10
SVR
12 IN-FL
14 IN-FR
16
BEEP
VP
RR 18
PGND2
20
VP1
STANDBY/
FR 22 STB
MUTE
24 PGND1
BATTERY TEMPERATURE
DETECTION PROTECTION ENABLE
LOGIC
26 RST
28 CRES
30 AUDIO8.3V
32 GND
34 PANEL+B
36 CBU
LOADDUMP BACK-UP
PROTECTION SWITCH