Sony HCD-GN880 / MHC-GN880 Service Manual ▷ View online
25
HCD-GN880
SECTION 7
DIAGRAMS
For schematic diagrams.
Note:
• All capacitors are in
Note:
• All capacitors are in
µ
F 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.
•
%
: indicates tolerance.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark: TUNER (FM/AM)
( ) : CD PLAY
<
no mark: TUNER (FM/AM)
( ) : CD PLAY
<
>: TAPE PLAY
[
]: TAPE REC
*
: 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.
•
Signal path.
F
: TUNER (FM/AM)
E
: TAPE PLAY (DECK A)
d
: TAPE PLAY (DECK B)
G
: RECORD
J
: CD PLAY (ANALOG OUT)
c
: CD PLAY (DIGITAL OUT)
j
: GAME IN (AUDIO)
k
: GAME IN (VIDEO)
N
: MIC INPUT
• Abbreviation
AUS
: Australian model
E2
: 120V AC Area in E model
E3
: 240V AC Area in E model
E51
: Chilean and Peruvian model
MX
: Mexican model
Note: The components identified by mark
0
or dotted line
with mark ! are critical for safety.
Replace only with part number specified.
Replace only with part number specified.
(The other layers' patterns are not indicated.)
• Indication of transistor.
• Abbreviation
AUS
: Australian model
E2
: 120V AC Area in E model
E3
: 240V AC Area in E model
E51
: Chilean and Peruvian model
MX
: Mexican model
Caution:
Parts face side:
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern 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:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
Note on Printed Wiring Boards:
26
HCD-GN880
7-1. CIRCUIT BOARD LOCATION
TUNER PACK
PRIMARY board
SURROUND board
PA board
SWITCHING POWER
PANEL board
SWITCH board
GAME board
MOTOR (LD) board
SW board
SENSOR board
JOG board
BD board
MOTOR (TB) board
DRIVER board
MAIN board
CD SW board
HCD-GN880
27
27
HCD-GN880
• WAVEFORMS
– MAIN BOARD –
IC401
qa
XC-OUT
VOL/DIV : 1 V AC
TIME/DIV : 10
TIME/DIV : 10
µ
sec
2
IC401
qd
X-OUT
VOL/DIV : 1 V AC
TIME/DIV : 50 nsec
TIME/DIV : 50 nsec
3
T101
5
TAPE REC only
VOL/DIV : 50 V AC
TIME/DIV : 10
TIME/DIV : 10
µ
sec
4
T101
4
TAPE REC only
VOL/DIV : 50 V AC
TIME/DIV : 10
TIME/DIV : 10
µ
sec
1
3.0Vp-p
32KHz
2.0Vp-p
16MHz
240Vp-p
13
µsec
64Vp-p
13
µsec
– BD BOARD –
IC101
wa
TEI
VOL/DIV : 0.2 V AC
TIME/DIV : 0.2 msec
TIME/DIV : 0.2 msec
2
IC101
wd
FEI
VOL/DIV : 0.1 V AC
TIME/DIV : 1 msec
TIME/DIV : 1 msec
3
IC101
ra
RFAC
VOL/DIV : 0.2 V AC
TIME/DIV : 0.5
TIME/DIV : 0.5
µ
sec
1
4MHz
2.4Vp-p
– PANEL BOARD –
IC901
is
X OUT
VOL/DIV : 1 V AC
TIME/DIV : 0.2
TIME/DIV : 0.2
µ
sec
1
0.15Vp-p
0.4Vp-p
0.96Vp-p
HCD-GN880
28
28
HCD-GN880
7-2. BLOCK DIAGRAM – CD SECTION –
MP3 STB
MP3 REQ
XTCN
XTACN
STB
MP3 REQ
MP3 CLK
MP3 CLK
MP3 ACK
MP3 ACK
MP3 DATA OUT
MP3 DATA
MP3 LP
MP3 LP
MP3 CS
MP3 RST
MP3 CS
MP3 RST
MP3 DATA IN
SCOR
SENS
CD-CLK
XLT
CD-DATA
XRST
SCOR
SENS
CLOCK
XLT
DATA
XRST
R-CH
CD L-CH
LINE MUTE
A
MAIN
SECTION
(Page 30)
B
MAIN
SECTION
(Page 30)
IC731
(TABLE SENSOR)
IC701
(LD)MOTOR DRIVER
4
2
2
9
11
RIN
FIN
OUT1
OUT2
IC712
TBL MOTOR DRIVER
4
2
2
9
7
7
RIN
FIN
OUT1
OUT2
LMR
LMF
TM-R
TM-F
TBL_SENS
E-1
E-2
E-3
OPEN SW
Q731
M751(LOADING)
M741(TBL)
RE701
S751
(LEVER SW)
ROTARY
ENCODER
E-3
E-2
E-1
INVERTER
M
M
D+3.3V
OPTICAL PICK-UP
BLOCK
(KSM-215DCP/C2NP)
LD
DRIVER
Q10
CD DIGITAL
OUT
OPTICAL
MUTE
Q102,152
+3.3V
LD
GND
FOCUS
COIL
F+
F
T+
T
TRACKING
COIL
IC251
X171
16.9MHz
SL/SP MOTOR
DRIVER
IC101
RF AMP
16
7
15
17
18
VR
PD
19
20
21
22
5
33
30
3
24
MUTE
CH2OUT-F
CH1FIN
OUT
VREF
CH1RIN
CH2FIN
SFDR
OPIN+
CH2OUT-R
CH1OUT-R
CH1OUT-F
CH4OUT-R
CH4OUT-F
CH3OUT-F
CH3OUT-R
M
M
M101
(SPINDLE)
M102
(SLED)
SW101
(LIMIT)
VCC
VC
A
B
C
D
E
F
DETECTOR
A
B
E
19
F
20
LD
36
PD
37
TFDR
11
FFDR
13
CH3FIN
9
OPTICAL
OUT
3
SSTP
7
MPD
6
95
XTACN
100
XRST
102
DATA
104
XLAT
105
CLOCK
86
AOUT2
81
AOUT1
71
DOUT
61
PCMD1
62
LRCK1
63
LRCK
65
PCMD
DIGITAL SIGNAL
IC301
PROCESSOR
SYSTEM
IC401 (1/4)
CONTROL
IC508
21
40
SDO0
11
LRCKIA
16
SFSY/LRCK1B
19
SDIO
14
77 XTAO
78 XTAI
55
VDD
VDD
VDDM
26
25 VC
27
C
28
D
29
107
SENS
XTACN
XRST
DATA
XLAT
CLOCK
SENS
113
GFS
114
C2PO
TRDR
NC
NC
12
29
SRDR
CH3RIN
10
CH2RIN
FRDR
14
XRST
100
66
BCK
60
BCK1
BCKIA
15
SBSY/BCK1B
18
6
+3.3V
IC303
8
5
1
3
26
25
7
5
24
23
22
50
49
48
47
43
46
45
6
19
21
44
42
18
3
2
1
34
STANBY
36
PO11/BUCK/AD1
8
MIACK
7
MICK
6
MIDIO
4
MICS
5
MILP
2
RESET
41
SRMSTB
115
SCOR
SCOR
REG
MUTE DRIVE
Q507, 508
• R-ch is omitted due to same as L-ch.
• Signal path
• Signal path
J
: CD
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