Sony HCD-GNZ7D / HCD-GNZ8D / HCD-GNZ9D / MHC-GNZ7D / MHC-GNZ8D / MHC-GNZ9D Service Manual ▷ View online
37
37
HCD-GNZ7D/GNZ8D/GNZ9D
HCD-GNZ7D/GNZ8D/GNZ9D
7-3. BLOCK DIAGRAM — AUDIO SECTION —
95
3
2
2
11
23
19
20
20
7
9
9
4
2
2
97
100
MUTE
Q711
OVERLOAD
DETECT
TH501,Q516,517
OVERLOAD
DETECT
Q541
OVERLOAD
DETECT
Q551
MUTE
Q713
SWITCH
Q520
MUTE CONTROL
Q724
MUTE
Q796
MUTE
Q714
SYSTEM CONTROL
IC101(2/4)
SIGNAL IN/OUT
CONTROL
IC102(1/3)
CDM EJECT
/PROTECT
/PROTECT
CDM ENCO/1/2
DOWN MIX
FRONT
GNZ7D
GNZ7D/
GNZ8D
GNZ8D
GNZ7D/
GNZ8D
GNZ8D
SURROUND L
CENTER
SUBWOOFER
DOWNMIX L
FRONT L
TONE
SW
MUTE
CDM
TBL-SENS
TBL-SENS
DATA
CLK
SW RELAY
NEG
POS
SW MUTE
IC701
M751
(LOADING)
M741
(TABLE)
LOADING
MOTOR
DRIVE
M
17
18
18
7
9
9
4
2
2
NEG
POS
IC712
TABLE
MOTOR
DRIVE
M
Q731
IC731
TABLE
ADDRESS
SENSOR
15
16
6
7
19
18
15
POWER AMP
IC501
SURROUND CONTROL
IC301
CH2
3
12
7
3
8
1
POWER AMP
IC601
CH1
+VH
+12V
BOOT
CH3
STBY
+VL
6
3
13
37
41
14
15
29
25
38
34
17 18
22
GNZ7D
GNZ8D/GNZ9D
GNZ8D/GNZ9D
GNZ7D
GNZ9D
AMP
IC303
R-CH
R-CH
R-CH
R-CH
PROTECT
FUN DET
OVERLOAD DET
SURROUND RY
RY581
J102
TM501 (1/2)
RY582
CLOSE OPEN
RE701
LOD
TBL
L
SUBWOOFER
R
CENTER
REAR
G
MAIN
SECTION
(Page 38)
SURROUND
SPEAKER
SUB WOOFER
OUT
E
D
MAIN
SECTION
(Page 38)
PROTECT
F
MAIN
SECTION
(Page 38)
C
VIDEO
SECTION
(Page 36)
S751
OPEN/CLOSE
DETECT
DISC TRAY
ADDRESS
DETECT
RY601
TM501 (2/2)
MAIN
SECTION
(Page 38)
+VH
RELAY
DRIVE
Q672,673
RELAY
DRIVE
Q581,584
OVERLOAD
DETECT
Q671
OVERLOAD
DETECT
Q682,683
+12V REG
Q681
DATA
CLK
IN SUR
LINK IN
IN C
IN SW
SW IN
IN DM
IN F
OUT
OUT
OUT
OUT
OUT
DC DET
• Signal Path
: AUDIO
• R-CH is omitted due to same as L-CH.
38
38
HCD-GNZ7D/GNZ8D/GNZ9D
HCD-GNZ7D/GNZ8D/GNZ9D
7-4. BLOCK DIAGRAM — MAIN SECTION —
17
LINE
REC(DECK B)
PB(DECK A)
PB(DECK B)
TUNER
DOWN MIX
MIC
VIDEO
76
RELAY
SWITCH
3
4
75
L
R
FAN
SWITCH
J1001
BIAS OSC
Q601
T601
B
VIDEO
SECTION
(Page 36)
R-CH
FAN SWITCH
Q782-784
D
AUDIO
SECTION
(Page 37)
F
AUDIO
SECTION
(Page 37)
H
FUNCTION/
POWER
SECTION
(Page 39)
A
RF/SERVO
SECTION
(Page 35)
G
AUDIO
SECTION
(Page 37)
E
AUDIO
SECTION
(Page 37)
1
2
FRONT
57
R-CH
R-CH
A+9V
J202
ECHO AMP
IC1002
LINE
VIDEO
MIC
VIDEO
MIC
RECB1
3 1
35 34
DATA
CLOCK
DATA
CLOCK
88
VACS/
ILLUMI
VACS2 8
AC DET
AC4
5
VIDEO OUT-SW
6
VIDEO MUTE
8
TA MUTE
9
HP MUTE
6
FUN ON/OFF
12
FUN CTRL
7
FRONT RELAY
22
REAR RELAY
86 BIAS
PB B
DM
SUR1
INB1
PB A
REC
28
LOUT
29
SW
23
TONE
SW
TONE
MUTE
27
BBB1
25
53
BBA1
POWER AMP
IC401
REC/PB AMP,
SOUND CONTROLLER
IC201
SYSEM CONTORL
IC101 (3/4)
7
6
15
13
OVERLOAD
DET
Q401
5
TM901
LCH
6
DI
8
DO
4
+9V
3
RCH
DBFB
DET
AC
DET
DBFB
SWITCH
Q212
R-CH
PROTECT
DET
R-CH
Q282,283
+VH
RY481
23
CVBS OUT
4 CVBS IN
V
6 Y-IN
Y
YG
2 C-IN
C
12
14
3
13
CB-IN
25 S1
9 I/P
MUTE1
MUTE2
MUTE2
CR-IN
10 CY-IN
CR/B
CB/R
WIDE
DSEL
S-DC OUT
C OUT
27
26
26
COMPONENT
VIDEO BUFFER
IC801
VIDEO SELECTOR
IC802
21
Y OUT
20
CY OUT
18
CB OUT
16
CR OUT
VIDEO
OUT
J802
COMPONENT
VIDEO OUT
J801
FRONT
SPEAKER
VIDEO
INPUT
INPUT
S VIDEO
OUT
J803
C
Y
Y
2
4
6
1
Y
P
B
/C
B
P
R
/C
R
TM401
Q272
Q271
Q402,403
MUTE
Q701
IN
ST-BY
+RE
-RE
AC DET
D763,Q721-723
D753
SWITCH
Q281
MUTE
Q703
MUTE
CONTROL
Q791-795,
797
Q481,482
R-CH
OVERLOAD DET
SURROUND RY
DC DET
PROTECT
FUN DET
R-CH
OVERHEAT
DET
TH401,Q416,417
AC DET
J1003
RV1001
MIC 1
J1004
MIC 2
MIC LEVEL
MIC AMP
IC1001 (1/2)
MIC AMP
IC1001 (2/2)
RV1002
ECHO LEVEL
IN
L
R
OUT
L
R
AUDIO
L
R
R-CH
TV/SAT
VIDEO
R-CH
69 DIN
70 DOUT
71 CLK
68 CE
70 DOUT
71 CLK
68 CE
AC DET
ST
19 TUNED
R-CH
Q602,603
Q627,
Q628
Q628
A+9V
ERASE
HEAD
REC/PB
HEAD
R-CH
R-CH
PB
HEAD
MUTE CONTROL
Q629-631
MUTE CONTROL
Q623,624
MUTE
Q622
J1004
PHONES
R-CH
AC3
FAN901
FAN
FAN902
FAN
(DECK A)
HP901
HRPE901
(DECK B)
TAPE
MECHANISM
DECK
BLOCK
SHUT(B)
84
SHUT(A)
83
PLAY(A)&(B)/A-HALF
82
85
79
B-HALF/REC
TRG(A)
A SOL
REC(REV)
B PHOTO
A PHOTO
A PHOTO
B MODE
A MODE
A MODE
B HALF
A HALF
REC(FWD)
TRG(B)
B SOL
78
CAP M+
B SOL DRIVE
Q101,102
CAP M DRIVE
Q103,104
A SOL DRIVE
Q105,106
7
CL
9
CE
TUNED 1
DOUT
DIN
CLK
CE
TUNED
CE
TUNED
LINE OUT
MUTE CONTROL
Q727
MUTE
Q705
IC203
PROTECT
3
4
2
6
6
59
13
13
AM
ANTENNA
FM 75Ω
COAXIAL
MUTE CONTROL
Q729
HP SW
GNZ9D
MIC
21 PB/REC
24 CAPM SW
10 AU-OUT MUTE
24 CAPM SW
10 AU-OUT MUTE
SIGNAL IN/OUT CONTROL
IC102 (2/3)
MUTE
CONTROL
Q728
• Signal Path
: TUNER
: AUDIO
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
: VIDEO
: COMPONENT VIDEO
• R-CH is omitted due to same as L-CH.
39
39
HCD-GNZ7D/GNZ8D/GNZ9D
HCD-GNZ7D/GNZ8D/GNZ9D
7-5. BLOCK DIAGRAM — FUNCTION/POWER SECTION —
AC IN
RY901
T911
POWER
TRANSFORMER
DVD +9V
M +9V
A +9V
75
CLK
76
DI1
STBY
RELAY
P1
I
P21
73
LATCH
77
RST
CLK
DI1
LATCH
RSTB
3
26
4
2
SYSTEM CONTROL
IC101 (4/4)
VCC CONT
HP SW
72
44-51,
53-61,
53-61,
63
65-67
D110
I/1
SIRCS 7
D115-120
RING
ILLUMINATION
LED DRIVE
Q114-117
FUNCTION
KEY
S11-20
REMOTE CONTROL
RECEIVER
94
S31-38,101
93
S51-57
92
89
74
4
21
STANDBY
LED
LED
12 RESET
+VF
20 AC CUT
43 – 41
X102
32.768kHz
11
10
XCOUT
XCIN
13
15
X101
16MHz
XOUT
XIN
ILLUMI 2/5
ILLUMI 3/6
ILLUMI 3/6
ILLUMI 1/4
ILLUMI CTRL
WAKE UP0
KEY2
VOL(A)&(B)
/SW IN
/SW IN
KEY1
KEY0
+VH
-VH
D471
F914
F915
F916
F917
F910
+VL
-VL
+VF
D571
DVD +5V
D +3.3V
D +3.3V
LED +9V
DVD POWER 22
UNREG+20V
UNREG+15V
D751
F918
GNZ8D/GNZ9D
TH
D761
F919
D911
D+3.3V
EVER+4V
-VP
EVER+4V
VCC+3.3V
+3.3V
REG
IC105
+3.3V
RF+3.3V
REG
IC107
DVD+3.3V
REG
IC851
DVD POWER
CONTROL
Q,861,870
RF +3.3V
DVD +3.3V
DVD +5V
DVD+5V
REG
IC861
DVD+9V
REG
IC941
M+9V
REG
IC942
A+9V
REG
IC943
DVD POWER
CONTROL
Q771,772
POWER
CONTROL
Q108,109
DVD+5V
REG
IC771
ILLUMINATION
CONTROL
Q111-113
Q111-113
81
80
18
RESET
SWITCH
Q107
RESET
IC103
D+4V
REG
IC945
B-
SWITCH
Q902
POWER
SWITCHING
D+4V
D+4V
EVER+4V
+3.3V
RF+1.8V
REG
IC106
RF +1.8V
5
SIGNAL IN/OUT CONTROL
IC102 (3/3)
FL101
FLUORESCENT
INDICATOR
TUBE
RELAY
DRIVE
Q901
H
MAIN
SECTION
(Page 38)
ENCODER
S102
MASTER VOLUME
FUNCTION
KEY
FUNCTION
KEY
G1-13
D101
D102
E12,E13,
AUS
EXCEPT
E12,E13,
AUS,TH
E2,E3,E15,EA,
SP,PH,
E51,MX
E12,E13,
AUS,TH
GNZ7D:TH/
GNZ8D:E12,E13,TH/
GNZ9D:E12,E13,AUS,MX
GNZ8D:E12,E13,TH/
GNZ9D:E12,E13,AUS,MX
GNZ7D:EXCEPT TH/
GNZ8D:EXCEPT E12,E13,TH/
GNZ9D:EXCEPT E12,E13,AUS,MX
GNZ8D:EXCEPT E12,E13,TH/
GNZ9D:EXCEPT E12,E13,AUS,MX
IC104
S901
VOLTAGE SELECTOR
230-240
230-240V
220V
120V
220
120
120
• Abbreviation
E2
: 120 V AC area in E model
E3
: 240 V AC area in E model
E12
: 220-240 V AC area in E model
E13
: 220-230 V AC area in E model
E15
: Iran model
E51
: Chilean and Peruvian model
AUS
: Australian model
EA
: Saudi arabia model
PH
: Philippine model
SP
: Singapore model
MX
: Mexican model
TH
: Thai model
40
40
HCD-GNZ7D/GNZ8D/GNZ9D
HCD-GNZ7D/GNZ8D/GNZ9D
• 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.
•
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
• Indication of transistor.
• A : B+ Line.
• B : B– Line.
• Voltage and waveforms are dc with respect to ground
• B : B– Line.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
no mark : FM
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 MΩ).
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
: AUDIO
f
: TUNER
L
: VIDEO (COMPONENT)
r : VIDEO (COMPOSITE)
E
E
: TAPE PLAY (DECK A)
d
: TAPE PLAY (DECK B)
G
: TAPE REC (DECK B)
J
: DVD (AUDIO)
c
: DVD (RF)
I : DVD (DIGITAL)
• Abbreviation
E2
: 120 V AC area in E model
E3
: 240 V AC area in E model
E12
: 220-240 V AC area in E model
E13
: 220-230 V AC area in E model
E15
: Iran model
E51
: Chilean and Peruvian model
AUS
: Australian model
EA
: Saudi arabia model
PH
: Philippine model
SP
: Singapore model
MX
: Mexican model
TH
: Thai model
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
Replace only with part number specified.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40
• Unleaded solder melts at a temperature about 40
°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to about
350
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to about
350
°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow) than
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may also
be added to ordinary solder.
be added to ordinary solder.
• Circuit Boards Location
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 µF unless otherwise noted. (p: pF)
• All capacitors are in µF unless otherwise noted. (p: pF)
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.
• C : panel designation.
• C : panel designation.
SUB TRANS board
JACK board
PANEL board
TRANS board
STREAM board
AUDIO board
FRONT AMP board
LEAD PIN board
(GNZ7D)
(GNZ7D)
SUBWOOFER board
(GNZ9D)
(GNZ9D)
SIRCS board
DRIVER board
SW board
DMB10 board
MOTOR (LD) board
MOTOR (TB) board
SENSOR board
SURROUND AMP board
(GNZ8D/GNZ9D)
(GNZ8D/GNZ9D)
VIDEO board
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