Sony HCD-GV6 / HCD-GV8 / LBT-GV6 / LBT-GV8 Service Manual ▷ View online
HCD-GV6/GV8
21
21
7-4.
BLOCK DIAGRAM – MAIN Section –
DBFB CONTROL
SWITCH
Q111
BASS WOOFER
CONTROL SWITCH
Q115
PROTECT
SWITCH
Q804
RESET
SWITCH
Q801
PHONO
EQ AMP
IC601
POWER AMP
IC801
CD-L
J701 (1/2)
E
(Page 19)
(Page 20)
H
(Page 20)
(Page 22)
PB-L
G
SPEANA
K
R-CH
FUNCTION SELECT
SWITCH
IC181
R-CH
VOLUME
CONTROL
CPU
INTERFACE
BASS BOOST
CONTROL
CIRCUIT
INPUT
SELECT
SWITCH
SOUND
CONTROL
CIRCUIT
GRAPHIC
EQUALIZER
CONTROL
CIRCUIT
R-CH
FEED BACK
SWITCH
Q112
R-CH
COMMAND
F OUT2
BUF
OUT2
VOL
IN2
IN2
+
+
R-CH
R-CH
R-CH
R-CH
EVER +5V
D803
R-CH
+
+
RV602
MIC AMP
IC850 (2/2)
ECHO
LEVEL
MUTING
Q113
OVER LOAD
DETECT
Q801, 851
TEMPERATURE
DETECT SWITCH
Q831, 832
DC DETECT
SWITCH
Q433, 434
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC101
IN D2
IN C2
IN E2
IN A2
IN F2
IN A2
IN F2
KEY IN2
KEY IN1
KEY OUT 2
KEY OUT 1
L+R
DATA
CLOCK
LATCH
493-DATA
493-CLK
493-LAT
SW-MODE
BB B2,
BB A2
MIC IN
SUPER
WOOFER
REC A2
REC-L
REC B2
R-CH
R-CH
X0
X
A
B
X1
TH831
R-CH
R-CH
+
R-CH
M901
(FAN)
(FAN)
R-CH
–1
–2
FAN MOTOR
DRIVE
Q961, 962
R-CH
R-CH
OVER LOAD
DETECT SWITCH
Q432
PROTECT SWITCH
Q439
OVER LOAD
DETECT SWITCH
Q437
FRONT SPEAKER PROTECT
RELAY DRIVE
Q401, 402
STANDBY SWITCH
Q803, 804, 834
MUTING CONTROL
SWITCH
Q802, 803
MUTING CONTROL
SWITCH
Q833
HEADPHONE
MUTING
Q805, 855
TM401
J802
J801
L
L
R
R
PHONO
IN
L
R
VIDEO
AUDIO IN
GAME
INPUT
AUDIO
MD IN
J701 (2/2)
L
R
MD OUT
38, 39
D501
D534
D807
D401
RY401
J803
PHONES
+
–
–
+
SYSTEM CONTROLLER
IC501 (3/4)
+
27
F-RELAY
3
7
34
STK-POWER
1
HP MUTE 93
LINE-MUTE
RESET
6
12
AC-CUT 22
HP-IN 36
47
48
38
60 5
59
6
2
58
57
42
41
72
36
34
BUF IN2
37
32
33
66
67
65
69
64
IN B2
68
M
L
R
30
+
XC-OUT
X502
16MHz
X501
32.768kHz
XC-IN
X-OUT
X-IN
FUNC SEL0
FUNC SEL1
FUNC SEL1
V MUTE
11
10
13
46
14
13
10 9
12
15
J804 (2/2)
L
R
45
28
PROTECT
DBFB-H/L
MIC 2
MIC 1
MIC AMP
IC850 (1/2)
MIC LEVEL
ST-L
J
(Page 20)
A, B, C
F
(Page 19)
C
B
A
• SIGNAL PATH
: TUNER (FM/AM)
: CD PLAY
• R-ch is omitted due to same as L-ch.
: TAPE PLAY
: RECORD
: MIC INPUT
L
(Page 22)
RESET
RESET SIGNAL
GENERATOR
IC801
PROTECT SWITCH
Q431
FRONT SPEAKER
IMPEDANCE
USE 4 – 16
Ω
RV601
DIGITAL
ECHO
IC851
IC851
HCD-GV6/GV8
22
22
7-5.
BLOCK DIAGRAM – DISPLAY/KEY CONTROL/POWER SUPPLY Section –
+10V
REGULATOR
IC931
TUNER
B+ SWITCH
Q931, 932
+12V
REGULATOR
IC932
+7V
REGULATOR
IC933
+7V
REGULATOR
IC901
–7V
REGULATOR
IC951
ST +10V
(FM/AM TUNER UNIT B+)
FAN MOTOR B+
TC M+12V
(TC MOTOR SECTION B+)
CD M+7V
(CD MOTOR SECTION B+)
B+ SWITCH
Q911, 912
B+ SWITCH
Q901, 902
B– SWITCH
Q903 – 905
Q903 – 905
+5V
REGULATOR
IC911
RECT
D833 – 836
RECT
D841 – 844
POWER AMP (IC801),
PROTECT CIRCUIT
POWER
TRANSFORMER
T951
RECT
D832
D832
RECT
D831
D831
–35V
REGULATOR
Q903, 908
VCD
B+ SWITCH
Q921
+3.3V
REGULATOR
Q531
+5V
REGULATOR
IC921
AC IN
TC, PANEL,
AUDIO
A+7V
A–7V
VF
TO FLUORESCENT
INDICATOR TUBE
(FL601)
VF
+VL
–VL
+VH
–VH
REMOTE CONTROL
RECEIVER
IC702
GRID DRIVE
Q605, 606
FLUORESCENT INDICATOR TUBE DRIVER,
KEY CONTROL
IC601
SYSTEM CONTROLLER
IC501 (4/4)
LED DRIVER
IC701
BAND-PASS FILTER
IC602
Q604
+5V (LED)
BPF 0
19
BPF 2
20
BPF 3
21
BPF 4
GRID DRIVE
Q607
DET
DET
B.P.F.
22
ALL BAND
REC IN
LINE
IN
1
SIRCS
ROTARY
ENCODER
S763
ROTARY
ENCODER
S736
74 JOG A
9
VOL A
75 JOG B
10
72
70
VOL B
XOUT
XIN
B+ SWITCH
Q602, 603
KEY 0
–
KEY 4
BPF 1
F02
F04
F05
F06
F05
F06
F03
GR-1
(Page 21)
(Page 21)
K
D611 – 614, 621, 622,
D700 – 710, 713, 714,
D716 – 720, 741, 791
D700 – 710, 713, 714,
D716 – 720, 741, 791
SPEANA
LED SEL
7
LED DAT
5
LED SCK
3
LED LATCH
DATA
CLK
6
13
14
15
43
I2C DATA
I2C CLK
IIC-DATA
IIC-CLK
RESET
RESET
18
79
78
29
WAKE UP
WAKE UP
8
D-SW
S742
80
18
30
CD-POWER
5
POWER
Q906
2
73
17
14
13
12
REC
LEVEL
LEVEL
11
15
16
4
6
11
–
15
SEG-1
–
SEG-23
44
–
46
GR-15, GR-16
28 , 27
GR-2
–
GR-14
42, 40
–
29
17, 19
–
23, 1
–
4, 7
–
11
P1
–
P6, P7
–
P10, P12
–
P16
S763
(JOG DIAL)
S601 – 607, 611 – 619, 621 – 627,
S701 – 730, 735, 741, 743 – 762
S736
VOLUME
X601
12.5MHz
DATA, CLK
L
STB
LED DRIVE
Q601
LED STANDBY 67
+5V (LED)
(PANEL SECTION B+)
D+5V (UNSW)
FLUORESCENT INDICATOR TUBE
FL601
D601
LID (CD)
OPEN/CLOSE
–35V
FL DRIVER (IC601)
B–
CD A+5V (SW)
(VIDEO CD SECTION B+)
Q914
VOLTAGE
SELECTOR
S901
AU D+5V
M62493FP (IC101) B+
D+5V (SW)
(CD SENSOR SECTION B+)
4
KEY POWER ON/OFF
KEY POWER
SAVE/DEMO
SAVE/DEMO
2
S608
POWER
SAVE/DEMO
(STANDBY)
S609
B+ SWITCH
Q913
RECT
D902 – 905
+5V
REGULATOR
IC901
EVER +5V
SYSTEM CONTROLLER (IC501),
CD MECHANISM CONTROLLER (IC502),
FL DRIVER (IC601) B+
+3.3V
MPEG VIDEO/AUDIO
DECODER (IC505) B+
CD D+5V (SW)
CD STEREO/VIDEO CD
SECTION B+
RY901
STBY RELAY 43
SUB POWER
TRANSFORMER
T901
POWER ON/OFF
RELAY DRIVE
Q901
(Page 19)
D
DATA
CLK
HCD-GV6/GV8
23
23
7-6.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER (FM/AM)
E
: TAPE PLAY (DECK A)
d
: TAPE PLAY (DECK B)
G
: RECORD
L
: CD PLAY (VIDEO)
J
: CD PLAY (AUDIO)
c
: DIGITAL OUT
N
: MIC INPUT
• Abbreviation
EA
: Saudi Arabia model
IA
: Indonesia model
MY
: Malaysia model
SP
: Singapore model
LEAF SW board
TABLE SENSOR board
CD MOTOR board
LED board
AUDIO board
BD board
• Circuit Boards Location
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
CD-R (1) board
TC-B board
CD-L board
TC-A board
MIC board
ILLUMINATION board
PANEL VR board
PANEL FL board
TRANS board
SUB TRANS board
TUNER PACK
(FM/AM TUNER UNIT)
(FM/AM TUNER UNIT)
MAIN board
PA board
HEADPHONES board
CD-R (2) board
FRONT INPUT board
VIDEO board
HCD-GV6/GV8
24
24
7-7.
PRINTED WIRING BOARD – BD Board –
•
See page 23 for Circuit Boards Location.
• Semiconductor
Location
(Side A)
(Side A)
Ref. No.
Location
IC104
F-3
Q101
F-6
• Semiconductor
Location
(Side B)
(Side B)
Ref. No.
Location
IC101
E-4
IC102
C-5
IC103
E-6
(KSS-213DH)
VIDEO
BOARD
CN501
(Page
28)
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