Sony HCD-GNZ77D / HCD-GNZ88D / MHC-GNZ77D / MHC-GNZ88D Service Manual ▷ View online
29
29
HCD-GNZ77D/GNZ88D
HCD-GNZ77D/GNZ88D
6-3. BLOCK DIAGRAM — MAIN SECTION —
57 FRONT
CENTER
SUBWOOFER
SURROUND L
FRONT L
DOWNMIX L
DVD/CD
Z0
TU–LCH
LINE
VIDEO
MIC
4
3
29
5
VRSW
Z1
3
X0
23
12
TONE L
1
SW CHANNEL
SELECT
28
FRONT L
7
MUSIC L+R
53
L+R LIGHTING
26
F/B
37
FRONT R
GNZ88D
R–CH
R–CH
4
Z
14
X
5
VOL1
6
VOL2
7
VO 3
29
POOUT
15 MIC1P
16 MIC2P
21
MCO
42
TONE R
X1
13
Z–Z1
9
2
SURR CHANNEL
SELECT
X–X1
SL OUT
SW OUT
CENTER
SW OUT
FRONT L
ADC RESET
DBFB FEED BACK
11
88
VACS IN
66
IO EXP DATA OUT
68
IO EXP RST
69
IO EXP CLK
70
IO EXP LAT
26
D1
V
C
Y
YG
WIDE
CB/R
DSEL
INIT
NSP MUTE
SOFT MUTE
4
LATCH
3
CLK
2
RESET
DATA
CLK
RST
DATA
LAT
LAT
CLK
RST
22
VIDEO OUT SW
21
VIDEO MUTE
24
FAN CNT
22
ADC RESET
8
DO
6
DI
7
CL
9
CE
1
TUNED
R–CH
R–CH
FM 75Ω
COAXIAL
DIN
DOUT
CLK
CE
TUNED
TUNED
ST A+9V
5
LCH
3
RCH
R–CH
4
+9V
5
2
59
PB A
75
PB B
76
REC
17
CLK
34
DATA
35
CLK
84
DIN
37
DOUT
39
CLK
38
CE
ST
36
TUNED
40
DATA
83
DVD A MUTE
34
MIC DETECT
23
B SHUT
90
A SHUT
89
A HALF
63
B HALF
91
CY–IN
10
S1
25
C–IN
CVBS IN
2
P
B
/C
B
P
R
/C
R
Y
4
3
2
MUTE1
3
MUTE2
13
Y–IN
6
Y OUT
CYOUT
CB OUT
CR OUT
21
S–DC OUT 27
CVBSOUT 23
C OUT 26
20
18
16
CB–IN
12
I/P
9
CR/B
CR–IN
14
REC MUTE
7
REC BIAS
20
TC REALY
21
CAMP CNT
18
B TRIG
19
A TRIG
17
SM INIT
12
SM NSP MUTING
9
SM SOFT MUTING
10
1
SELECT
SWITCH
Q261
MUTE CONTROL
Q301,302
MUTE
Q175
MUTE CONTROL
Q110,111
MUTE
Q166
MUTE
Q285
MIC2
LEVLE
RV1401
ECHO AMP
IC1400
ECHO LEVEL
RV1401
MIC AMP
IC1401
MIC1
LEVLE
DVD/CD MUTE
CONTROL
Q307,308
RV1401
REC/PB AMP,
SOUND CONTROL
IC101
SIGNAL SELECT
IC205
MUTE
Q235
MUTE
Q236
MUTE
Q238
MUTE
Q237
SELECT
SWITCH
Q260
DBFB
FEED BACK
Q101
FAN
DETECT
Q580,582
FAN
CONTROL
Q584
FAN
DRIVE
Q585
AM
J501
J501
TU901
ANTENNA
TV/SAT IN
L
R
J1402
J1402
J1400
AUDIO
MIC 1
J1450
MIC 2
VIDEO
VIDEO
INPUT
INPUT
L
R
D
AUDIO
SECTION
G
AUDIO
SECTION
B
VIDEO
SECTION
C
VIDEO
SECTION
F
AUDIO
SECTION
SCORE
VOICE
A
VIDEO
SECTION
E
AUDIO
SECTION
R-CH
PB
HEAD
HP901
BIAS OSC
Q112
T101
R-CH
ERASE
HEAD
REC/PB
HEAD
R-CH
BIAS+9V
MUTE CONTROL
Q107–109
HRPE901
(DECK B)
(DECK A)
TAPE
MECHANISM
DECK
BLOCK
B SHUT
A SHUT
A SHUT
A HALF
B HALF
REC(REV)
CAP M+
REC(FWD)
B TRGM+
A TRGM+
B TRG CONTROL
Q118,119
CAP CONTROL
Q120,121
A TRG CONTROL
Q122,123
UNREG+12V
FAN901
FAN DET
75 OHM DRIVER
IC1801
C
J1902 (2/2)
S VIDEO
OUT
Y
J1902 (1/2)
VIDEO SELECTOR
IC1805
VIDEO
OUT
D–LIGHT
SYNC OUT
J506
SUB WOOFER
OUT
J503
J1900
COMPONENT
OUT
Q154,
155
Q113,114
SIGNAL IN/OUT CONTROL
IC403
SYSTEM
CONTROL
IC401 (3/4)
MUSIC L+R
AC/DC CONVERTER
IC2000 (2/2)
MIC
AC/DC CONVERTER
IC2000 (1/2)
DETECT
COMPARATOR
IC2001
LIMIT VOICE
COMPARATOR
IC2002
• 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.
7
SOFT MUTE
CONTROL
Q305,306,311
MUTE
Q263,264
JW261
GNZ77D
(Page 28)
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30
30
HCD-GNZ77D/GNZ88D
HCD-GNZ77D/GNZ88D
6-4. BLOCK DIAGRAM — AUDIO SECTION —
41
4
2
2
7
9
9
43
3
SERIAL CLOCK
BUFFER
IC3
SYSTEM CONTROL
IC401(2/4)
E–3
OPEN SWITCH
SM LATCH3
79
SM LATCH2
76
SM LATCH1
77
SM CLK
78
SM DATA
65
SM RESET
72
SM SD
86
HP MUTE
85
HP DET
44 E–2
45 E–1
45 E–1
42 TABLE SENSE
48 LM–F
DBFB FEED BACK
FRONT L
R-CH
ADC RESET
SL OUT
R-CH
IC701
M751
(LOADING)
M741
(TABLE)
LOADING
MOTOR
DRIVE
4
2
2
IC712
TABLE
MOTOR
DRIVE
M
M
Q731
IC731
TABLE
ADDRESS
SENSOR
11
A/D CONVERTER
IC11
A/D CONVERTER
IC12
1
2
7
1
15
12
10
12
11
D/A CONVERTER
IC500
SUB WOOFER AMP
IC812
CLOSE OPEN
RE701
G
MAIN
SECTION
D
MAIN
SECTION
F
MAIN
SECTION
E
MAIN
SECTION
S751
OPEN/CLOSE
DETECT
DISC TRAY
ADDRESS
DETECT
L IN
R IN
31 DATA
R–CH
OUTL1
OUTL2
OUTR1
OUTR2
XFSOIN
XFSOOUT
HPOUTL1
HPOUTL2
HPOUTL2
HPOUTR1
HPOUTR2
NSPMUTE
SOFTMUTE
SCDT
SCSHIFT
SCLATCH
INIT
FSOCKO
29 LRCK
30 BCK
30 BCK
36 XFSIIN
2 R IN
SCKI
15 SCKI
PDWN
7
L IN
D OUT
LRCK
BCK
D OUT
10
LRCK
11
BCK
SW OUT
CENTER
1
12
2
15
7
49 LM–R
46 TM–F
47 TM–R
47 TM–R
7
9
9
10
11
9
6
R–CH
4
18
D/A CONVERTER
IC700
36 XFSIIN
31 DATA
30 BCK
29 LRCK
NSPMUTE
SOFTMUTE
SCDT
SCSHIFT
19
21
22
23
SCLATCH
INIT
FSOI
XFSOIN
27
38
48
OUTL1 11
OUTL2 9
HPOUTR1 41
HPOUTR2 39
11
D/A CONVERTER
IC600
36 XFSIIN
R-CH
R-CH
31 DATA
30 BCK
29 LRCK
21 SCDT
14 XFSOOUT
19 SOFTMUTE
18 NSPMUTE
37 FSOCKO
22 SCSHIFT
27 INIT
48 XFSOIN
GNZ88D
GNZ88D
GNZ88D
SW OUT
INIT
NSP MUTE
SOFT MUTE
38 FSOI
23 SCLATCH
OUTL1
OUTL2
OUTR1
OUTR2
9
AMP (SURROUND)
IC630
AMP (CENTER)
IC730
33
4 PWM A
UNREG+8V
6 PWM B
OUT A
OUT B 30
OUT C 25
OUT D 22
/SD 3
RESET AB 5
RESET CD 15
/SD 4
/RESET 5
6
4
R-CH
R-CH
R-CH
R-CH
R-CH
FAN DET
R-CH
R-CH
AMP (FRONT LCH)
IC530
14 PWM B
6 PWM A
DC DETECT
Q850,851
OUT A
4
/SD
5
/RESET
R–CH
41
R–CH
39
45
43
14
48
18
19
21
22
23
27
37
FSOI 38
28
l
30
OUT B
25
l
27
OUT A
28
l
30
OUT B
25
l
27
HP AMP
IC880
IC803
6 PWM A
14 PWM B
GNZ77D
DC DETECT
Q860,861
DC DETECT
Q870,871
FRONT
SPEAKER
L
R
TM1500 (1/3)
SURROUND
SPEAKER
PHONES
J1401
L
R
CENTER
SPEAKER
MUTE
Q1400,1401
DC DETECT
Q840
SERIAL CLOCK
BUFFER
IC800
MUTE CONTROL
Q486
D486
TM1500 (2/3)
TM1500 (3/3)
X1
12.288MHz
X800
49MHz
PDWN
A/D CONVERTER
IC13
R IN
SCKI
L IN
D OUT
LRCK
BCK
PDWN
• Signal path
: AUDIO
: DIGITAL
(Page 29)
(Page 29)
(Page 29)
(Page 29)
31
31
HCD-GNZ77D/GNZ88D
HCD-GNZ77D/GNZ88D
6-5. BLOCK DIAGRAM — FUNCTION/POWER SECTION —
57
58
FL DRIVER CLK
FL DRIVER DATA
FL DRIVER CS
FL DRIVER RESET
DR5
I
DR11
DR12
I
DR14
DR16
I
DR35
60
59
SI
SCK
CSB
RSTB
49
48
51
52
SYSTEM CONTROL
IC401 (4/4)
D1304
(STANDBY)
D1307–1312
SIRCS 4
VIN
POWER CONTROL
IC1100
C
VCC
FB
Z/C
FUNCTION
KEY
S1309–1316
REMOTE CONTROL
SIGNAL
RECEIVER
IC1301
97
S1317,1319,1324–1327
95
S1306,1318,1320–1323,1328,1331
94
56
12
STBY LED
53 LED CTRL
RESET
20 AC CUT
AD KEY3
AD KEY2
AD KEY1
XC IN
XC OUT
X IN
X OUT
51
50 LED ILLUMINATION 1
LED ILLUMINATION 2
LED ILLUMINATION 3
52
LED
ILLUMINATION
CONTROL
Q1305–1307
X401
32.768kHz
X402
5MHz
11
10
13
MTK POWER 35
MAIN ON/OFF 100
15
LED ON/OFF
CONTROL
Q1308,1310
FL DRIVE
IC1300
FUNCTION
KEY
FUNCTION
KEY
FUNCTION
KEY
S1300
73
S1301
74
S1305
54 VOL A
POWER KEY
DISPLAY KEY
FUNCTION
KEY
ROTARY
ENCODER
55 VOL B
LED POWER
CONTROL
Q1303,1304
VP
F1
F2
DVD SW+9V
REG
IC1802
DVD SW+3.3V
REG
IC1803
DVD SW+5V
REG
IC1804
POWER
CONTROL
Q132,133
RESET
SWITCH
Q213
RESET
IC402
DVD
SW+9V
AUDIO+9V
REG
IC552
M+9V/LED+9V
REG
IC551
+12V REG
IC1102
RECT
D1114
ST A+9V
M+9V
UNREG+12V
+31V
120V
SW1100
EQ
Q1300
AUDIO A+9V
D+3.3V
D+4V
DVD+3.3V
RF+1.8V
RF+3.3V
UNREG+8V
A+5V
A+8.4V
A+5V
EVER+4V
D215
D216
AC IN
D1300
D1102
D1101
D1119
D1110
D1112
D1120
T1100
MAIN
TRANSFORMER
T1300
DC/DC
CONVERTER
TRANSFORMER
D1302
D1301
D594
A+5V REG
Q131
D1303
BIAS +9V
+3.3V
EVER+4V
FL+4V
FL+3.3V
D+3.3V
D393
D396
D395
D1314
D394
D506
F1110
FEED BACK
PC1100
STANDBY
CONTROL
CONTROL
PC1101
STANDBY
CONTROL
CONTROL
PC1102
STANDBY
CONTROL
CONTROL
Q1102
STANDBY
CONTROL
CONTROL
Q1200
FEED BACK
PC1200
POWER DETECT
IC1201
220
l
240V
VOLTAGE
SELECTER
+4V SWITCH
Q1203,1204
+8V SWITCH
Q1205,1206
FILTER
LF1101
A+5V REG
IC1
D+4V
REG
IC562
7
I
13
•
15
I
17
•
19
I
38
DR0
I
DR4
•
DR15
2
I
6
•
18
FL1300
VACUUM
FLUORESCENT
DISPLAYS
D+3.3V
+1.8V
RECT
D1212
POWER DETECT
IC1101
POWER CONTROL
Q1100,1101
RF+1.8V REG
IC106
+3.3V
+3.3V REG
IC105
DVD SW+5V
RF+3.3V REG
IC107
RECT
D1213
RECT
D1100
MTK POWER
CONTROL
Q1970,1971
FL DRIVE
CONTROL
Q1311–1316
6
7
4
3
1
D
POWER CONTROL
IC1200
VCC
FB
Z/C
5
4
2
1
GNZ88D:EXCEPT TH
T1200
SUB
TRANSFORMER
D+3.3V REG
IC2
+1.8V REG
IC810
D1211
D1201
D1208
D1207
• 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
EA : Saudi arabia model
PH : Philippine model
SP : Singapore model
TH : Thai model
GNZ88D
GNZ77D: POWER UNIT
GNZ88D
32
32
HCD-GNZ77D/GNZ88D
HCD-GNZ77D/GNZ88D
• 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 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
under no-signal (detuned) conditions.
no mark : FM
no mark : FM
∗
: Impossible to measure
• 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
: AUDIO
f
: TUNER
L
: VIDEO (COMPONENT)
g
: VIDEO (COMPOSITE)
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
EA
: Saudi arabia model
PH
: Philippine model
SP
: Singapore 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.
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 °C higher than
• 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 °C.
Caution: The printed pattern (copper foil) may peel away if the
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.
6-6. 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.
MIC board
PANEL board
KARAOKE board
VOLUME board
IR board
DRIVER board
ADC board
S-MASTER board
SPEAKER board
MAIN board
SW board
DMB15 board
MOTOR (LD) board
MOTOR (TB) board
SENSOR board
POWER UNIT
VIDEO board
MIC board
PANEL board
KARAOKE board
VOLUME board
IR board
DRIVER board
ADC board
S-MASTER board
SPEAKER board
MAIN board
SW board
DMB15 board
MOTOR (LD) board
MOTOR (TB) board
SENSOR board
POWER board
VIDEO board
HCD-GNZ77D
HCD-GNZ88D
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