DOWNLOAD Sony MHC-GTX88 Service Manual ↓ Size: 7.43 MB | Pages: 120 in PDF or view online for FREE

Model
MHC-GTX88
Pages
120
Size
7.43 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / BRAZIL
File
mhc-gtx88.pdf
Date
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33
33
HCD-GTX88
HCD-GTX88
6-3. DIAGRAMA EM BLOCO — SEÇÃO PRINCIPAL —
(Page 31)
(Page 35)
(Page 32)
(Page 35)
(Page 32)
(Page 36)
(Page 32)
(Page 35)
J101
RCH
L
CD LCH
CD RCH
R
AUDIO
IN
CD RCH
11
10
9
3
RCH
MIXER
IC1500
MULTIPLEXER
IC1503
DIGITAL DELAY
IC1501
SIGNAL SELECTER
IC564
SURROUND VOLUME CONTROL
IC201
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC101
SIGNAL SELECTER
IC563
MIC AMP
IC1100
(1/2)
MIC AMP
IC1100
(2/2)
RV1150
MIC
LEVEL
LPF1IN
A
B
C
COM
CD
A-MUTE
SOURCE
SEL 2
SOURCE
SEL 1
CTRL
1
CTRL
3
DATA CLK
Z
GROOVE
FREQ
LINE
MUTE
EFFECTOR
SYSTEM CONTROL
IC401 (3/6)
S0
S1
S2
SEL
9
LPF2OUT
19
SAOUT
A+9V
L+R
SPEANA
J1100 (2/2)
10
LPF2IN
11
OP2OUT
12
OP2IN
LPF1OUT
CLOCK
14
3
2
25 26 27
7
18
65
28
78
77
81
82
75
80
79
66
RCH
L
R
VIDEO
IN
MIXER
IC1505
BUFFER
Q1513
MUTE
Q250
CD MUTE
Q540
DBFB
SWITCH
Q101
SELECT
SWITCH
Q596
SELECT
SWITCH
Q597
BUFFER
Q1509
EFFECTOR
SELECT
SWITCH
Q598
X
RF/SERVO
SECTION
A
ST L
TC PB L
X
TAPE/TUNER
SECTION
TAPE/TUNER
SECTION
E
X
DISPLAY/POWER
SECTION
G
X
AMP/SUBWOOFER
SECTION
I
REC OUT L
X
TAPE/TUNER
SECTION
D
X
AMP/SUBWOOFER
SECTION
F
X
AMP/SUBWOOFER
SECTION
H
X
C
4 IMB1
DBFB F/B
SWITCH
Q608
SWITCH
Q591
3 INA1
6 IND1
14 LFE VOL IN
2 MIC
8
RECB1
F–L
18
OUT1
24
SWOUT
16
BB A1
17
BB B1
11
TCA1
21
DATA
22
CLOCK
12
TCB1
SW OUT
34
FL OUT
17
DATA
18
CLOCK
MUTE
Q180
D+4V REG
Q325
MUTE
Q607
LINE MUTE
Q544
1
5
3
10
Y0
Y1
Y
A
D101,102
J103
D-LIGHT
SYNC OUT
3
2
9
10
Y1
Y2
Y3
A
B
Y
5
4
J1100
(1/2)
MIC
Q1500
Q1508
Q1506
Q1502
RCH
M61529
DATA
CLK
M61530
7
13
5
3
: AUDIO
: CD PLAY
: TAPE PLAY (DECK A)
: TAPE PLAY (DECK B)
: MIC
: TUNER
• Signal Path
• R-CH is omitted due to same as L-CH.
•
l
34
34
HCD-GTX88
HCD-GTX88
6-4. DIAGRAMA EM BLOCO — SEÇÃO  USB  —
(Page 31)
77
78
3
4
5
VBUS+5V
USB CONTROL
IC901
VBUS
POWER ON/OFF
SWITCH
IC915
SYSTEM CONTROL
IC401 (4/6)
S-RAM
IC921
CN952
1
4
(USB)
VBUS
D–
D+
GND
OUT
P75/USBOC
P76/USBPON
D–
OE
A0
I
A2
A3
I
A6
A7
I
A10
A11
I
A15
WE
LB
UB
CE
D+
IN
FLG
EN 1
80
79
PF1/RXDO
DATA
85
PF2/SCLK0/CTSO/CLK/TB0OUT0
CLK
86
PN5/HSS1/SCL1
GATE
94
PN4/HSS0/SDA1
A IN
93
PN3/HSCLK
BCK IN
92
P83/CS3/WAIT/TA5OUT
LRCKIN
71
P64/A20
P63/A19
P62/A18
P61/A17
USBRST
USB SERIAL TXDO
USB SERIAL RXDO
USB SERIAL RTSO
USB SERIAL CTSO
BUS3
58
BUS2
57
BUS1
56
BUS0
55
P66/A22
CCE
60
P65/A21
BUCK
59
PG3
REQ
96
PG2
ST REQ
97
P70/RD
P71/SRWR
18
I
25
•
28
I
35
64
41
17
65
P72/SRLLB
P73/SRLUB
66
39
40
67
P82/CS2 70
16
RESET
PC0/INT0
1
31
38
2
PF0/TXD0
PF4/RXD1/SPDI
84
34
35
88
PF3/TXD1/SPD0 87
X1 75
X2 73
36
P00/D0
I
P07/D7
P10/D8
I
P17/D15
37
I
43
•
46
I
54
44
I
42
•
27
I
24
•
21
I
18
•
5
I
1
I/O0
I
I/O3
I/O4
I
I/O7
I/O8
I
I/O11
I/O12
I
I/O15
7
I
10
•
13
I
16
•
29
I
32
•
35
I
38
P41/A1
I
P47/A7
P50/A8
I
P60/A16
RF/SERVO
SECTION
B
X901
9kHz
• Signal Path
: USB
: DIGITAL
35
35
HCD-GTX88
HCD-GTX88
6-5. DIAGRAMA EM BLOCO — SEÇÃO AMP/SUBWOOFER  —
(Page 33)
(Page 33)
(Page 36)
(Page 36)
(Page 33)
MUTING
Q604, 606, 610
F-R
DBFB F/B
F-L
67
STK MUTE
12
OVER LOAD
DETECT
Q668, 618
+
+
+
MUTE
Q640, 641
MUTE
CONTROL
Q634,682,684
71
LINK RELAY
88
FAN HI SPEED
97
SW VOL LED
100
HP DET
95
SW VOL IN
RELAY DRIVE
Q644, 647
+VL
–VL
IN1
ST BY
+RE1
–RE1
+RE2
–RE2
+VCC
–VCC
SW OUT
+
-
-
+
FRONT SPEAKER
SUB WOOFER
OUT
L
R
PHONES
J1101
RY646
RY862
+
-
-
+
L
R
FAN MOTOR
DRIVE
Q579, 585
DC FAN
M891
M
M
FAN MOTOR
DRIVE
Q586–588
FAN CONTROL
SWITCH
Q584
FAN DETECT
Q580–582
DC FAN
M892
TH629
THERMAL
DETECT
Q628, 630
94
THERMAL VACS
TB001
TM600
D624
D550
18
11
10
9
14
8
• SIGNAL PATH
POWER AMP
IC601
69
PROTECTOR
70
FRONT RELAY
68
HP MUTE
H
MAIN
SECTION
F
MAIN
SECTION
MAIN
SECTION
I
DISPLAY
/POWER
SECTION
K
DISPLAY/
POWER
SECTION
J
TH630
11
4
5
6
7
3
2
13
OCP
CT
OUT
VL(AC)
1
VP
2
4
3
STK MUTE
Q812
SUBWOOFER POWER AMP
IC800
SYSTEM CONTROL
IC401 (5/6)
OVER CURRENT
PROTECTOR
IC550
OVERLOAD
DETECT
Q850
AC OUT
DETECT
Q815
UNDER VOLTAGE
DETECT SWITCH
Q506
RELAY
DRIVE
Q814
OVERLOAD
DETECT
Q800
OVERLOAD
DETECT
SWITCH
Q648
RY665
FAN CONTROL
HI SPEED
SWITCH
Q581
SYSTEM
CONTROL
+9V
CN102
+
-
-
+
SURROUND SPEAKER
L
R
TM601
RELAY DRIVE
Q666
72
SW SPK RELAY
61
UNDER VOLTAGE DET
• R-CH is omitted due to same as L-CH.
: AUDIO
36
36
HCD-GTX88
HCD-GTX88
6-6. DIAGRAMA EM BLOCO — SEÇÃO DISPLAY/POWER  —
USB +5V
ND900
VACUUM
FLUORESCENT
DISPLAY
9, 10, 12 – 22,
24 – 41,  43 – 47
1 – 6, 87-100
P1 – 36
G2 – 21
64 – 66
7, 8, 86
BF4
1
SPECTRUM
ANALYZER
IC902
67
68
16
2
15
69
71
48
80
ALL BAND
BF3
BF1
IN2
IN1
VKK
LED SELECTOR
G1,22,23
G1,22,23
G2-21
13
17
73 VOLUME
MASTER
VOLUME
SPEANA
P1 – 36
VF1
VF2
D900
–VG
(–32V)
FUN CONTROL
X900
4MHz
83 XI
82 XO
52– 59,
75,76,78,79
LED DRIVE
Q906–911, 913–916
920,921
D906, 908, 910, 913, 917, 
921, 929, 923, 925, 927
D905, 907, 909, 912, 914, 
916, 922, 924, 926.955
LED+9V
Q903
Q902
Q901
Q900
D904
(R)
D930
(G)
KEY2
 | 
KEY0
S901 – 914,
916 –933
60
I2C DATA
61
I2C CLK
77
RESET
30 IIC-DATA
29 IIC-CLK
IIC-DATA
IIC-CLK
37 GC-RESET
74 POWER-KEY
73 DISPLAY-KEY
S934
S900
DISPLAY
33 STBY-LED/FAN CONTROL
4 SIRCS
RESET
X402
5MHz
15 X-IN
13 X-OUT
X401
32.768kHz
10 XC-IN
11 XC-OUT
SYSTEM CONTROL
IC401 (6/6)
50
STBY-RELAY
12
RESET
20
AC-CUT
D671
D402
D501,504
POWER
SWITCHING
LED DRIVE
Q904,905
RECT
D658
RECT
D656
+VL
VL(AC)
F1261
VL
VL
VH
VH
VP
VF
VF
GND
F1271
F1241
F1251
R1292
–VL
+VH
–VH
– 33V
REGULATOR
Q1264
POWER ON/OFF
RELAY DRIVE
Q1200
– VG
(-32V)
D1292
RECT
VF1
VF2
ND900
VACUUM
FRUORESCENT
DISPLAY
RY1200
AC IN
T1200
POWER
TRANSFORMER
RESET
SWITCH
Q501
REMOTE CONTROL
SIGNAL RECEIVER
IC901
EVER +4V
D+3.3V
DISPLAY CONTROL,
KEY CONTROL
IC900
BUFFER
Q917, 918, 919
70 BF2
14
72 OPERATION DIAL
ROTARY
ENCODER
ROTARY
ENCODER
OPERATION
DIAL
NO402
(FOR CHECK)
CN402
(3/3)
(FOR CHECK)
40
USB-POWER
63
OVER VOLTAGE DET
32
CD POWER
USB POWER
CONTROL
SWITCH
Q590,603
RECT
D540
M +9V
VM +7V
LED +9V
A +9V
ST +9V
OVER VOLTAGE
DETECT SWITCH
Q550
AC3
AC3
F1281
AUDIO +9V
BIAS +9V
UNREG
S1200
S1200
2
20V
|
220V
|
12
7V
VOLTAGE
SELECTOR
S936
S935
X
MAIN
SECTION
G
X
AMP/SUBWOOFER
SECTION
K
X
AMP/SUBWOOFER
SECTION
J
LEVEL
DETECT
IC402
USB+5V REG
IC565
+9V REG
IC560
+9V REG
IC561
DVDD+3.3V
REG
IC562
D592
D561,
562
D590,594
D593
DVSS +3.3V
D +3.3V
AVDD +3.3V
DVDD +3.3V
USB POWER
CONTROL
SWITCH
Q604–606
CD POWER
CONTROL
SWITCH
Q560,561
USB+9V REG
IC570
D+4V REG
IC569
• Abbreviatio
n
  l
  
(Page 33)
(Page 35)
(Page 35)
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