Sony HCD-GN700 / HCD-GX8800 / MHC-GN700 / MHC-GX8800 Service Manual ▷ View online
25
HCD-GN700/GX8800
SECTION 7
DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
•
f
: internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• 5 : fusible resistor.
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
•
• X : parts extracted from the component side.
•
: Pattern from the side which enables seeing.
(The other layers´ Patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
• Indication of transistor.
• C : panel designation.
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
CD board section
no mark: CD PLAY
Other board section
no mark: TUNER (FM/AM)
( ): CD PLAY
< >: TAPE PLAY
[ ]: TAPE REC
CD board section
no mark: CD PLAY
Other board section
no mark: TUNER (FM/AM)
( ): CD PLAY
< >: TAPE PLAY
[ ]: TAPE REC
• 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
: TUNER (FM/AM)
E
: TAPE PALY (DECK A)
d
: TAPE PALY (DECK B)
G
: RECORD
J
: CD PALY (ANALOG OUT)
c
: CD PALY (DIGITAL OUT)
q
: MD/VIDEO (AUDIO) IN
j
: GAME IN (AUDIO)
k : GAME IN (VIDEO)
N
N
: MIC INPUT
Note:
The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• Abbreviation
AR : Argentine model
E2
E2
: 120 V AC Area in E model
E3
: 240 V AC Area in E model
E51 : Chilean and Peruvian model
MX : Mexican model
MX : Mexican model
• Abbreviation
AR : Argentine model
E2
E2
: 120 V AC Area in E model
E3
: 240 V AC Area in E model
E51 : Chilean and Peruvian model
MX : Mexican model
MX : Mexican model
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
26
HCD-GN700/GX8800
7-1. CIRCUIT BOARD LOCATION
TUNER PACK
SUB TRANS board
POWER AMP board
TRANS board
DISPLAY board
VOLUME board
GAME IN board
MOTOR (LD) board
SW board
SENSOR board
CD board
MOTOR (TB) board
DRIVER board
MAIN board
CD SWITCH board
HCD-GN700/GX8800
27
27
T331 5
r
WAVEFORMS
1
IC501 qa XC-OUT
2
3
IC501 qd X-OUT
T331 4
4
– MAIN BOARD –
– CD BOARD –
IC101 el FE
2
IC101 ra TE
1
IC101 t; RFAC
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 : 0.1V AC
TIME/DIV : 1msec
TIME/DIV : 1msec
VOL/DIV : 0.2V AC
TIME/DIV : 0.2msec
TIME/DIV : 0.2msec
VOL/DIV : 0.2V AC
TIME/DIV : 0.5µsec
TIME/DIV : 0.5µsec
0.15Vp-p
0.4Vp-p
0.96Vp-p
HCD-GN700/GX8800
28
28
7-2.
BLOCK DIAGRAM – CD SERVO Section –
: CD
• Signal Path
• R-CH is omitted due to same as L-CH
: DIGITAL OUT
OPTICAL PICK-UP
BLOCK
(KSS-213DCP)
A
B
C
D
E
F
LD
VC
CD A+3.3V
GND
PD
VR
LD
DRIVE
FOCUS
COIL
TRACKING
COIL
Q101
RF AMP
IC103
DVC
14
A
6
B
7
C
8
D
9
E
10
F
11
LD
1
PD
2
IC150
MOTOR/COIL DRIVE
18
17
12
11
M
M101
SLED
SLED
MOTOR
M
M102
SPINDLE
MOTOR
F+
F-
T+
T-
2
20
25
27
MUTE
MDP
25
SRDR
30
SFDR
29
TRDR
32
TFDR
31
FRDR
34
FFDR
33
DIGITAL SIGNAL PROC.
IC101
DIGITAL SERVO
64
D OUT
RFAC
50
29
RFDCI
28
RFDCO
16
FE
17
FEI
12
SW
RFDC
43
FE
39
TE
41
SE
40
66
PCMD
OPTICAL
OUT
IC201
26
RO
4
DATA
R-CH
CD L-CH
6
CLOK
5
XLAT
77
SQCK
8
SCLK
15
SCOR
76
SQSO
26
SSTP
2
XRST
S101
LIMIT
IN SW
CD-DATA
35
CD-CLK
37
CD-XLAT
36
SQ-CLK
33
SCOR
19
SQ-DATA-IN
32
7
SENS
SENSE
34
OUT(CD)
OPTICAL
SYSTEM CONTROL
CD/TAPE MECHANISM
CONTROL
IC501 (1/4)
15
RF AC
18
TE
CD +3.3V
SENS
SQ-DATA
SQ-CLK
IC104
D/A CONV,
MP3 DECODER
SDIO
12
3
23
LO
67
BCLK
BCKIA
13
65
LRCK
LRCKIA
14
71
XTAI
CKI/CKO
60
72
XTAO
XI
62
XO
63
X201
16.9MHz
5
MIDIO
6
MICK
7
MIACK/AD2
39
PO7
1
RESET
DATA IN
6
DATA OUT
5
MP3 CLK
7
25
3
MICS/AD0
MP3 CS
1
4
MILP/AD1
MP3 LP
2
MP3 ACK
3
MP3 RESET
48
MP3 REQ
18
C-XRST
40
BU-PWM3
24
BU-PWM2
26
BU-PWM1
28
LD-ON
38
+2.5V
REG
1
IC121
3
+2.5V
CD A+3.3V
D-SENS 41
EJECTSW
CD-A-MUTE
Q206, 207
BUFFER
Q731
S751
(LEVER)
D+3.3V
42
MUTE
Q201
LMF 46
LMR 47
44
TM-R
E-1
E-2
E-3
45
21
22
43
TM-F
9
7
3
4
1
2
RIN
FIN
9
7
MOTOR
DRIVE
4
2
4
2
MOTOR
DRIVE
OUT
OUT
OUT
OUT
RIN
FIN
MOTOR DRIVER
IC712
RE701
ROTARY
ENCODER
MOTOR DRIVER
IC701
TABL SENSOR
IC731
M751
(LOADING)
M
M
M741
(TABLE)
A
MAIN/POWER
SECTION
B
DISPLAY
SECTION
SECTION
APC
DRV
22
23
+
–
DRV
+
–
DRV
DRV
15
16
4
14
13
6
7
+
–
5
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