Sony HCD-GN88D / MHC-GN88D Service Manual ▷ View online
HCD-GN88D
25
25
IC207 VDAC_4
T301 5
r
WAVEFORMS
1
IC501 qa XC-OUT
2
3
IC501 qd X-OUT
T301 4
4
– MAIN BOARD –
– DMB03 BOARD –
IC906 8 XTO
2
IC901 r; XTAL
1
IC906 0 SO2
3
– DISPLAY BOARD –
IC601 is X OUT
1
3.0Vp-p
32KHz
VOL/DIV : 1V AC
TIME/DIV : 10µsec
TIME/DIV : 10µsec
VOL/DIV : 1V AC
TIME/DIV : 50nsec
TIME/DIV : 50nsec
2.0Vp-p
16MHz
240Vp-p
13µsec
VOL/DIV : 50V AC
TIME/DIV : 10µsec
TIME/DIV : 10µsec
TAPE REC only
VOL/DIV : 50V AC
TIME/DIV : 10µsec
TIME/DIV : 10µsec
TAPE REC only
64Vp-p
13µsec
4MHz
2.4Vp-p
VOL/DIV : 1V AC
TIME/DIV : 0.2µsec
TIME/DIV : 0.2µsec
VOL/DIV : 1V AC
TIME/DIV : 20nsec
TIME/DIV : 20nsec
VOL/DIV : 1V AC
TIME/DIV : 20nsec
TIME/DIV : 20nsec
VOL/DIV : 1V AC
TIME/DIV : 20nsec
TIME/DIV : 20nsec
3.3 Vp-p
20 MHz
3.5 Vp-p
27 MHz
4 Vp-p
30nsec
IC906 qd SO3
4
VOL/DIV : 1V AC
TIME/DIV : 20nsec
TIME/DIV : 20nsec
4 Vp-p
30nsec
IC207 VDAC_1
6
IC207 VDAC_0
5
IC207 VDAC_2
7
VOL/DIV : 0.5V AC
TIME/DIV : 20 µsec
TIME/DIV : 20 µsec
VOL/DIV : 0.5V AC
TIME/DIV : 20 µsec
TIME/DIV : 20 µsec
VOL/DIV : 0.5V AC
TIME/DIV : 20 µsec
TIME/DIV : 20 µsec
8
VOL/DIV : 0.5V AC
TIME/DIV : 20 µsec
TIME/DIV : 20 µsec
131
1Vp-p
1H
128
976 mVp-p
1H
125
1 Vp-p
1H
IC207 VDAC_3
122
1H
750mVp-p
9
VOL/DIV : 0.5V AC
TIME/DIV : 20 µsec
TIME/DIV : 20 µsec
119
1H
750mVp-p
– RF Board –
IC001 1 DVD RFP
1
IC001 el TE
2
IC001 r; FE
3
IC001 tj RFAC
4
0.7Vp-p
0.2V/div
100nsec/div
1.8Vp-p
0.5V/div
1msec/div
0.1V/div
1msec/div
0.3Vp-p
1.2Vp-p
0.5V/div
100nsec/div
HCD-GN88D
26
26
7-2.
BLOCK DIAGRAM – DVD DSP (1/2) Section –
OPTICAL PICK-UP
BLOCK
(TDP022W)
A +5V
Q001
IC001
DVD/CD RF AMP
VC
CD A
16
CD B
15
CD C
SDEN
PI/CE
DATA RF
CLK RF
MIRR
FFDR
VC
FRDR
TFDR
TRDR
SPIN
14
13
17
18
20
1
21
CD D
A
12
B
11
C
10
9 D
CD F
CD E
DVD LD
A2
3
B2
4
C2
5
6 D2
DVDLD
PD
FCS+
FCS-
TRK+
TRK-
SW
DVDRFP
INLIM
IC501
MOTOR/COIL DRIVE
36
DO1-
DO1+
DO2+
DO2-
DO3+
DO3-
DO3-
DO4+
DO4-
37
34
35
32
19
20
21
22
30
DO5+
27
IN6-
46
IN6+
47
29
DO5-
28
31
48
1
40
3
4
10
7
13
31
32
44
SLED
MOTOR
SPINDLE
MOTOR
IN1+
IN1-
IN2+
IN2-
IN3-
IN4-
IN5-
VC
VC
45
OUT6
SPO
SLED_B
62
FG
7
FCS_JMP_1
8
FCS_JMP_2
61
SLED
26
SCOR
6
MNT1
22
INIT0_DVD
23
INIT1_DVD
84
XWR
85
XRD
12
XCS_DVD
25
XRST_1882
14-21
D0-D7
89-96
A0-A7
52
SQSO
54
SQCK
SLED_A
TRDR
TFDR
33
34 FRDR
FFDR
IC901(1/2)
MECHANISM
CONTROLLER
57
RFAC
40
FE
VC
VCC
B
A
D
C
E
E
F
RF
GND
39
TE
42
36
MNTR
VI25
39 FE
41 TE
40 SE
43
42
38
RFDC
CE
VC
RFIN
48
SDEN
47
SDATA
46
SCLK
2
SDEN
40 XTAL
X901
20MHz
41 EXTAL
83
SDATA_RF
82
SDCLK_RF
27
MIRR
26
LDON
LDON
DOUT
I/O0-I/O15
768FS-2
768FS-1
768FS-1
IC706
16M DRAM
A0-A11
IC701
DVD DECODER
IC509
CD DECODER
SERVO DSP
MD0-MD9,
MDA-MDF
MA0-MA9
XMWR
WE
XRAS
RAS
XOE
OE
XCAS
MA11/MNT2
D0-D7 A0-A7
UCAS
LCAS
SLEDA+
SLEDA-
SLEDB+
SLEDB-
SPDL+
SPDL-
12
16
Q901
LD
DRIVE
22 CD LD
23 DVDPD
24 CDPD
24 CDPD
CDLD
LD GND
M
M
66
PI
50 RFAC
64
DOUT
65
LRCK
66
PCMD
67
BCK
71
XTAI
76
SQSO
77
SQCK
79
SBSO
80
EXCK
4
DATA
5
XLAT
6
CLOK
7
SENS
8
49 27 50 9 72
SCLK
DATA_CD
LAT_CD
CLOK_CD
SENS_CD
SCLK_CD
71
GFS_CD
30
COUT_CD
74
FOK_CD
75
LOCK_CD
31
INLIM
10
WFCK
13
GFS
14
C2PO
15
SCOR
17
WDCK
19
COUT
22
FOK
24
LOCK
768FS
25
MDP
26
SSTP
MUTE12
MUTE34
MUTE5
TSD-M
29
5
7
6
SFDR
30 SRDR
28
LDON
20 MIRR
76
LDSEL
73
TSD-M
63
SP_ON
60
MUTE_2D
43
135
164
MDIN2
137
117
LRCK
163
65
TE
67
FE
29
MIRR
Q002
LD
DRIVE
IC503
AMP
5 SDA
SCL
WP
SDA_EEP
SCL_EEP
WP_EEP
7
6
5
99
100
IC903
EEPROM
IC703(2/2)
AMP
IC703(1/2)
AMP
MDAT
160
APE0
109
GFS 107
171
BCLK
158
SBIN
148
EXCK
147
3
MUTE
59
MUTE_CD
2
XRST
98
XDRST
WFCK
151
C2PO
155
SCOR
150
GSCOR
146
46
HDRQ
XSAK
HDB-DATA
48
XHWR
XSAK
XDCK
XSDCK
49
XHRD
NC
53
XHAC
XSRQ
XSRQ
XTL1
45
SCK_DSD
58
GFS_DVD
64
JIT
3
DOCTRL/ISBTEST
63
MD2
76
172-176
1,2,4
5,7,
9-14
17
18
78
33
94
34
35
95
XRD
17
XWR
18
XCS
19
XINT0
20
XINT1
21
HDB0-HDB8
MA10/MNT1 92
93
44,41,39,35
32,30,27,24,26
66-69,71,
73-75,
96,97,99,
101,102,
104-106
2-5,
7-10,
41-44,
46-49
79,80,
82-87,
82-87,
89,91
21-24,
27-32,
27-32,
20,19
8
8
XRST
XRST
B
A
DVD DSP (2/2)
SECTION
(Page 27)
DRV
DRV
DRV
DRV
42
43
DVD DSP (2/2)
SECTION
(Page 27)
• Signal Path
: DVD
: DIGITAL OUT
HCD-GN88D
27
27
– DVD DSP (2/2) Section–
D-SENS
41
EJECTSW
Q731
S751
(LEVER)
D+3.3V
M-REQ
VMUTE
VMUTE2
42
3
4
1
2
IC731
TABLE SENSOR
IC901 (2/2)
MECHANISM
CONTROLLER
IC501 (1/5)
SYSTEM
CONTROL
131
VDAC 0
V
C
Y
CB/R
CR/B
I2C-DA
D +3.3V
I2C-CL
IIC-DATA
IIC-CLK
SYS-RESET
156
IEC958
109
CDSEL
125
VDAC 2
128
VDAC 1
122
VDAC 3
34,33,31
29 56
119
HA1-22
HA4-22
HA1-3
HA1-3
HAD0-15
VDAC 4
WIDE
107
VS
190
ALE
195
HCS0
25
WEH.UDS
27
HEL.LDS
IC207
DVD SYSTEM PROCESSOR
IC216
ADDRESS LATCH
184
HIRQ1
DRVIRQ
36
191
RST_SPC
RST
38
DRVRDY
37
161
I2C DA
I2C_SIO
78
160
I2C CL
I2C_SCL
79
202
RESET
185
DRVCLK
SCK_ZIVA
35
186
DRVTX
SO_ZIVA
34
187
DRVRX
SI_ZIVA
33
162
CS (ZIVA_E2P)
165
WRITE_CTRL (ZIVA_E2P)
116
HIRQ2
188 DRVRDY
D+3.3V
AUDIO
+5V
CS_ZIVA
32
DVD-MUTE
(DVD-A-MUTE)
25
VMUTE
33
M-REQ
34
VMUTE2
32
VIDEO OUT
81
SYS-RESET
40
3 MO1
MO2
MO3
27MM
768FS
768FS
768FS
768FS-2
768FS-1
768FS-1
13
10
IC906
CLOCK GENERATOR
6
CLR
CK
Q
3
1
2
1
4
IC904
FF
IC902
GATE
5
DI
4
SK
3
CS
1
R/B
DO
WC 8
6
IC204
EEPROM
HDB-DATA
DOUT
DOUT
DOUT
SDEN
179
X SAK
SDCLK
183
X DCK
X SRQ
SDREQ
178
139
XIN
IC203
SDRAM
DQ0-DQ31
A0-A9,A10/AP,NC
MD0-MD31
SDDATA0-SDDATA7,
SDERROR
MA0-MA11
HAD0-HAD15
MDQM0-MDQM3
DQM0-DQM3
MWE
WE
MCAS
CAS
MRAS
RAS
MCS0
CS
12
32
8
4
53
16,71,28,59
17
18
52
19
51
20
49
BA0
BS0 22
48
BA1
BS1 23
1
3
47
57-60
64-71
75-78
81-84
88-95
64-71
75-78
81-84
88-95
99-102
55,54,52,51,
49-47,45-40,38-36
2,3,5,6,8-10
12-17,19-21,
23,24,26
2,4,5,7,
8,10,11,13,
74,76,77,79,
80,82,83,85,
31,33,34,36,
37,39,40,42,
45,47,48,50,
80,82,83,85,
31,33,34,36,
37,39,40,42,
45,47,48,50,
51,53,54,56
42-33
45,46
45,46
22,19-14,
11-3
HA1-HA3 2,207,206
177-174
171-168,182
25-27
60-66
24,21
60-66
24,21
150
DATA0(DM)
151
DATA1(FLR)
154
DATA2(SLR)
155
DATA3(CSW)
149
BCK
148
LRCK
147
XCK
CDSEL
110
MREQ
MREQ
BCK-ZIBA
LRCK-ZIBA
XCK
113
MDI
114
MC
115
ML
MDI
MC
ML
MDI
RST
AUDIO
D +3.3V
MC
ML
Q202
1LE,2LE
IC302
D/A CONVERTER
IC201
DATA3
DATA2
DATA1
DATA4
BCK
VOUT7
OPTICAL
DIGITAL
OUT
IC392
+3.3V
REG.
A3V-2
D +5V
1
3
IC907
+3.3V
REG.
ZIVA
D +3.3V
ZIVA
D +1.8V
1
3
IC211
+1.8V
REG.
VOUT8
DOWNMIX-L
DOWNMIX-R
SURROUND-L
SURROUND-R
SW (LFE)
FRONT-L
FRONT-R
CENTER
MUTE
Q215,216
MUTE
Q217,218
MUTE
Q219
MUTE
Q220,221
MUTE
Q222
VOUT1
VOUT2
VOUT5
VOUT3
VOUT4
VOUT6
LRCK
SCKI
47
46
46
45
31
40
41
38
16
20
20
14
13
10
12
11
9
36
35
34
37
62,73,86,97
DATA1
DATA0
DATA2
DATA3
IEC958
26 CE
DQ0-DQ15
A0-A21
HAD0-15
HAD0-15
11 WE
28 OE
IC206
RAM
29-36,
38-45
25,24,23,
22-18,
8-1,48,
17,16,9,
10
7
XTI
X902
27MHz
8
XTO
M
DISPLAY
SECTION
SECTION
(Page 31)
D
DISPLAY
SECTION
SECTION
(Page 31)
B
DVD DSP
SECTION
(Page 26)
C
MAIN
SECTION
(Page 29)
A
DVD DSP (1/2)
SECTION
(Page 26)
Q903
Q904
30
V-OUT.A
4 V-IN
V
6
Y-IN
Y
2
C-IN
C
14
16
CB-IN
CB/R
CR-IN
15 MUTE2
3 MUTE1
12 CY-IN
CR/B
WIDE
V-OUT.B
C-OUT
31
33
IC711
VIDEO AMP/BUFFER
IC710
VIDEO SELECTOR
27
Y-OUT.A
Y-OUT.B 28
24
CY-OUT.A
CY-OUT.B 25
21
CB-OUT.A
CB-OUT.B 22
18
CR-OUT.A
CR-OUT.B 19
VIDEO
OUT
VIDEO
J711
CD DIGITAL OUT
OPTICAL
COMPONENT
VIDEO OUT
J710
S VIDEO
OUT
J712
C
Y
7
3
1
2
Y
P
B
/C
B
P
R
/C
R
Q701,711
BUFFER
Q223,224
IC252
DATA OUT SELECTOR
5
2
1
6
GAME
INPUT
VIDEO
J601 (1/2)
LMF
46
LMR
47
44
TM-R
E-1
E-2
E-3
45
21
22
43
TM-F
RIN
FIN
9
7
MOTOR
DRIVE
4
2
9
7
4
2
MOTOR
DRIVE
OUT1
OUT2
OUT1
OUT2
RIN
FIN
IC712
MOTOR DRIVER
RE701
ROTARY
ENCODER
IC701
MOTOR DRIVER
M751
(LOADING)
M
M
M741
(TABLE)
• Signal Path
: DVD
: DIGITAL OUT
: VIDEO
: GAME IN (VIDEO)
HCD-GN88D
28
28
TAPE L-CH
TEST
CONNECTOR
CN301
R-CH
R
L
E
MAIN
SECTION
(Page 29)
TUNER L – CH
F
MAIN
SECTION
(Page 29)
REC L-CH
G
MAIN
SECTION
(Page 29)
PB
HEAD
DECK-A
DECK-B
TC BLOCK
32
BIAS OSC
Q302, 303
RIPPLE
FILTER
Q301
A TRIG
DRIVE
• SIGNAL PATH
: PLAYBACK (DECK A)
: PLAYBACK (DECK B)
: RECORD
: TUNER (FM/AM)
R-CH
FM/AM TUNER UNIT
CN304
ANTENNA
ST-L
FM ANT
AM ANT
AM ANT
ST-R
ST-MUTE
STEREO
TUNED
ST-DOUT/MC-DIN
ST-DIN/MC-DOUT
ST-CLK
ST-CE
FM 75Ω
COAXIAL
CAP M+
BTRGM+
ATRGM+
AHALF
BHALF
APLAY
BPLAY
BSHUT
ASHUT
ASHUT
REC(FWD)
REC(REV)
CAPM-CTRL
B-TRIG
A-TRIG
TC-RELAY
A-HALF
B-HALF
A-PLAY
B-PLAY
B-SHUT
A-SHUT
A-SHUT
A REC, FWD
B REC, REV
REC BIAS
PB-A/B
ALC
REC-MUTE
TC-MUTE
AMS-IN
AM
• R-ch is omitted due to same as L-ch.
93
EQ OUT1
A
B
120
ST-MUTE
STEREO
TUNED
TUNED
ST-DIN
ST-DOUT
ST-CLK
ST-CE
ST-CE
BIAS
TRAP
REC
BIAS(L)
34
1
2
3
4
28
27
26
24
21
56
53
54
EQ-H/N
65
51
52
63
60
66
90
89
61
69
91
67
55
59
B TRIG
DRIVE
58
CAP MOTOR
DRIVE
57
100
1
2
97
87
65
88
13
12
11
15
14
BUFFER
Q304,305
HPF
R-CH
PB OUT1
TAI1
REC IN1
MUTE
Q306,389
AMS DETECT
Q390, 398, 399
R-CH
R-CH
L – CH
R – CH
R-CH
R-CH
SWP1
GND
SWR1
AIN1
BIN1
RV304
REC(L)
LEVEL
RV301
C332, 333
TC A+9V
REC/PB SWITCH
IC302
REC/PB
HEAD
ERASE
HEAD
A/B
NORM/HIGH SPEED
ALC ON/OFF
REC MUTE ON/OFF
MUTE ON/OFF
IC303
DECK A/B SELECT
PB/REC EQUALIZER AMP
IC301
Q307,310
T301
Q391, 392
Q395, 396
Q393,394
SYSTEM CONTROL
(CD/TAPE MECHANISM CONTROL)
IC501(2/5)
REC-OUT1
+
L – CH
R – CH
EQ
– TUNER/TAPE DECK Section –
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