Read Sony HCD-EX660Z / HCD-EX880Z / HCD-EX990Z / MHC-EX660 / MHC-EX880 / MHC-EX990 Service Manual online
HCD-EX660Z/EX880Z/EX990Z
HCD-EX660Z/EX880Z/EX990Z
18
18
5-2. BLOCK DIAGRAM - TUNER/AUDIO Section -
8
R-CH
INPUT FUNCTION SELECTOR
IC204
SYSTEM CONTROL
IC200 (2/3)
CD/USB-L
7 CD/USB-R
CD/USB-L
PC-IN-L
TUNER-L
5 INPUT_B
4 INPUT_A
PRE AMP
IC600
PRE AMP
IC601
21
R-CH
25
OUT-R
OUT-L
11
SEL-L
PROTECT-F
12
SEL-R
36 O-HP-MUTE
10
R-CH
J102
AM/FM-DET,OSC,MIX,PLL,IF AMP
IC101
L101
X101
32.768kHz
DVD/PC IN
ANTENNA
FM/AM
CN103
-1
-2
L
FM
AM
AM
3
2
1
R
R-CH
FRF1
ARF1
ARF2
+3.3V
9 PC-IN-R
6
R-CH
R-CH
LOUT
ROUT
X1
X2
4
6
7
5 TUNER-R
SCLK
SDATA
I2C-FUNC-DATA
I2C-FUNC-CLK
I-RDSI
I2C-TU-CLK
I2C-TU-DATA
27
28
41
7
6
9
8
15
14
9V
4
+3.3V REG
IC103
3
FL101
BAND PASS
FILTER
SUBWOOFER
MUTE
Q204, Q209
IIC/RDSI
8
CK
10
DA
13
18
19
3
1
22
I-LED-LEVEL
23
I-VACS
D206
32
O-SW-MUTE
30
O-FR-RELAY
33
O-AMP-RST
5
O-FAN-LOW-SPEED
35
I-PROTECT-S
10 INPUT_C
RCH+
53
OUT_A
52
OUT_A
36
37
44
OUT_B
45
OUT_B
OUT_C
OUT_C
OUT_D
OUT_D
28
29
11 INPUT_D
RCH-
6
7
PRE AMP
IC600
POWER AMP
IC801
POWER AMP
IC800
PRE AMP
IC601
RCH-
5
7
2
6
7
1
VACS/SIGNAL LEVEL
CONTROL
IC203
5
12
13
7
6
7
39
40
31
36
28
27
SUBWOOFER
AMP
Q211, Q212
SPEAKER RELAY
DRIVER
Q608
OVERLOAD
DETECT
Q604 – Q607,
Q609, Q610
DC DETECT
Q706
OVERLOAD
DETECT
Q604-607
+
–
L
TB601
SUBWOOFER
TB600
R
RY600
+
–
–
+
–
SPEAKERS
–
D601
+
L
TB600
EX660Z
EX990Z
R
+
–
SPEAKERS
FAN MOTOR
CONTROL
Q708 (EX660Z/EX880Z)
Q713 (EX990Z)
FAN MOTOR
DETECT
Q608 (EX880Z)
Q611 (EX990Z)
Q611 (EX990Z)
FAN MOTOR
REG
Q704 (EX880Z/EX990Z)
FAN MOTOR
DETECT
Q705 (EX880Z/EX990Z)
D704
DC FAN
+9V
+13V
+
–
M+7V
DC DETECT
Q705
+9V
M+7V
D702
INPUT_A
INPUT_B
INPUT_C
OUT_A
OUT_A
OUT_B
OUT_C
OUT_D
OUT_D
INPUT_D
4 /RESET
17 /SD
4 /RESET
17 /SD
7 INPUT_B
6 INPUT_A
PRE AMP
IC600
PRE AMP
IC601
12 INPUT_C
RCH+
2 /RESET
15 /SD
39
OUT_A
40
OUT_A
31
36
OUT_B
OUT_C
OUT_D
OUT_D
28
27
13 INPUT_D
RCH-
6
7
POWER AMP
IC801
6
7
OVERLOAD
DETECT
Q604-607
–
D601
+
L
TB600
EX880Z
R
+
–
SPEAKERS
DC DETECT
Q703
5
7
8
VCC
+9V
R-CH
HEADPHONE AMP
IC100
I-HP/CD-SW
R-CH
HEADPHONE
MUTE SWITCH
Q100
HEADPHONE AMP
POWER SWITCH
Q104
MUTE
Q105
PHONES
J100
CD
SECTION
(Page 17)
(Page 17)
A
CD
SECTION
(Page 17)
(Page 17)
B
DISPLAY/POWER
SECTION
(Page 19)
(Page 19)
D
DC DETECT
Q703
R-FK LV RPLWWHG GXH WR VDPH DV L-FK.
SLJQDO SDWK
: TUNER (FM)
: TUNER (AM)
: CD
: DVD/PC IN
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