Sony HCD-GSX100W / MHC-GSX100W Service Manual ▷ View online
21
HCD-GSX100W
E-F Balance Check
Connection:
Connection:
Procedure:
1.
1.
Connect an oscilloscpe to test point TP (TE1) and TP (DVC)
on the CD board.
on the CD board.
2.
Turn the power on.
3.
Select the function “CD”.
4.
Press three buttons of
[ENTER]
,
M
, and
[PLAY MODE]
simultaneously to set the CD service mode.
5.
Put the disc (YEDS-18) in to playback the number five track.
6.
Press the
.
button. The message “TRAVERSE” is
displayed. (The tracking servo and the sledding servo are turned
OFF)
OFF)
7.
Check the level B of the oscilliscope's waveform and the A
(DC voltage) of the center of the Traverse waveform.
Confirm the following :
A/B x 100 = less than
(DC voltage) of the center of the Traverse waveform.
Confirm the following :
A/B x 100 = less than
± 22%
Traverse Waveform
8.
Press the
.
button. The message “TRAVERSE” is
displayed. (The tracking servo and sledding servo are turned
ON)
Confirm the C (DC voltage) is almost equal to the A (DC
voltage) is step 5.
ON)
Confirm the C (DC voltage) is almost equal to the A (DC
voltage) is step 5.
9. To exit from this mode, perform as follows.
1) Move the optical pick-up to the most inside track.
2) Press three buttons of
2) Press three buttons of
x
,
[CLEAR]
, and
[DISPLAY]
simultaneously. (cold reset)
Notes: • Always move the optical pick-up to most inside track when
exiting from this mode. Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can
be chipped.
Traverse Waveform
Checking Location: CD board (Conductor side)
+
–
–
CD board
TP (TE1)
TP (DVC)
oscilloscope
0V
B
level: 1.15
±
0.5 Vp-p
Center of
the waveform
the waveform
A (DC
voltage)
0V
Tracking servo
Sled servo
ON
C (DC
voltage)
voltage)
Tracking servo
Sled servo
OFF
Checking Location:
– CD BOARD (Conductor Side) –
TP (FE1)
IC104
IC101
IC103
TP (TE1)
TP (RFAC)
TP (DVC)
22
HCD-GSX100W
SECTION 7
DIAGRAMS
7-1.
Circuit Boards Location
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• 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.
• C : panel designation.
• 5 : fusible resistor.
• C : panel designation.
For printed wiring boards.
Note:
• 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.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
CD board section
no mark : CD PLAY
Other board section
no mark : FM
(
CD board section
no mark : CD PLAY
Other board section
no mark : FM
(
) : TAPE PLAY
<
> : TAPE REC
[
] : CD PLAY
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Indication of transistor
Note:
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM
J
: CD
c
: DIGITAL OUT
E
: TAPE (PB)
a
: TAPE (REC)
j
: AUDIO IN
k : VIDEO IN
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component A)
the parts face are indicated.
MAIN board
AMP board
POWER board
TUNER board
WIRELESS board
D-SENSOR (OUT) board
T-SENSOR board
D-SENSOR (IN) board
LT MOTOR board
LOAD SW board
CD LED board
CD board
RX unit
DISPLAY board
GAME board
SPK board
DETCT board
H/P board
KEY board
KEY(2) board
B
These are omitted.
C
E
C
B
These are omitted.
E
Q
23
23
HCD-GSX100W
7-2. Block Diagrams – CD Section –
: CD
• Signal Path
• R-CH is omitted due to same as L-CH
: DIGITAL OUT
OPTICAL PICK-UP
BLOCK
(KSM-213BFN)
A
B
C
D
E
F
LD
VC
VCC
VCC
+5V
GND
PD
VR
LD
DRIVE
FOCUS
COIL
TRACKING
COIL
Q101
RF AMP
VC
27
A
6
B
7
C
8
D
9
E
10
F
11
LD
1
PD
2
IC150
MOTOR/COIL DRIVE
CH1RO
18
CH1FO
17
CH2FO
12
CH2RO
M101
M102
11
CH3FO
14
CH3RO
13
M
SLED
MOTOR
CH4RO
16
CH4FO
15
M
SPINDLE
MOTOR
F+
F-
T+
T-
22
CH1RI
23
CH1FI
6
CH2FI
7
CH2RI
4
CH3FI
5
CH3RI
2
CH4INS
20
MUTE
MDP
25
SRDR
30
SFDR
29
TRDR
32
TFDR
31
FRDR
34
FFDR
33
DIGITAL SIGNAL PROSESSOR
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
IC309
26
RO
4
DATA
R-CH
L-OUT
6
CLOK
5
XLAT
77
SQCK
8
SCLK
15
SCOR
76
SQSO
26
SSTP
2
XRST
S101
LIMIT
IN SW
C-DATA
28
C-CLK
35
C-XLAT
23
C-SQCK(SCLK)
33
C-SCOR
19
C-SQSO(RXD1)
32
7
SENS
C-SENSE
27
OUT(CD)
OPTICAL
IC801 (1/5)
SYSTEM CONTROL
15
RF AC
18
TE
+3.3V
IC104
D/A CONV,
MP3 DECODER
SDIO
12
3
23
LO
67
BCLK
BCKIA
13
65
LRCK
LRCKIA
14
71
XTAI
CKO
60
72
XTAO
XI
62
XO
63
X201
16.9MHz
5
MIDIO
6
SCL
7
MIACK/AD2
39
PO7
1
RESET
MP3-DI
6
MP3-DO
5
MP3-SCL
7
3
MICS/AD0
MP3-CS
NC
97
4
MILP/AD1
MP3-LATCH(RTS 1)
34
MP3-ACK
81
MP3-RESET
84
MP3-ST/BY
85
MP3-REQ
18
C-XRST
21
PWM3
26
PWM2
24
PWM1
22
LD ON
25
+3.3V
REG
+2.5V
REG
1
4
IC121
+3.3V
5
+2.5V
CD +5V
91
88
93
T-SENS3
T-SENS2
T-SENS1
TABLE
SENSOR
IC11
TABLE
SENSOR
IC13
TABLE
SENSOR
IC12
LOAD IN SW 86
LOAD OUT SW 87
LOAD IN
LOAD OUT
S842
(LOAD)
D-SENS 92
DISC IN
DETECT SENSOR
D441, Q841
AMP
Q801, 802,
805, 806
LOAD NEG 3
LOAD POS 2
LOADING
MOTOR CONTROL
Q406, 408
TABLE POS 1
TABLE
MOTOR CONTROL
Q402, 404
TABLE NEG 100
3
2
RN1
FN1
16
17
MOTOR
DRIVE
9
8
10
11
MOTOR
DRIVE
OUT1 –
OUT1 +
OUT2 –
OUT2 +
RIN2
FIN2
LOADING/TABLE
MOTOR DRIVE
IC401
M441
(LOADING)
M
M
M442
(TABLE)
A
INPUT/EVR
SECTION
(Page 25)
IC103
HCD-GSX100W
24
24
– TUNER/TAPE DECK Section –
: FM
: AM
• Signal Path
• R-CH is omitted due to same as L-CH.
: TAPE (PB)
: TAPE (REC)
32
34
13
14
57
21
24
23
11
15
59
56
26
60
58
28
27
DO
DI
CK
CE
TUNED
BIAS
OSC
Q481
R-CH
R-CH
L
R
T481
REC BIAS
ERASE HEAD
ERASE BIAS
+9.6V
Q482, 483
REC/PB HEAD
REC
BIAS
PB
AMP
REC
AMP
SWITCH
Q484,485
Q441, 442
MUTE
A/B
AIN(L)
NC
BIN(L)
PB-OUT
(L)
TAI(L)
PB-OUT (L)
REC-OUT(L)
REC-IN(L)
M
CAPSTAN
MOTOR DRIVE
Q306, 308
TRIGGER
PLUNGER DRIVE
Q309, 310
+12V
MO-ON
61 SOL-ON
ALC
ALC(L)
REC-MUTE
63
90
89
45 43 44 42 47 40
(CAPSTAN)
(TRIGGER PLUNGER)
TA-SHUT
TA-HALF
TA-PLA
Y
ALC-ON
REC-MUTE
PB-MUTE
REC/PB
(PLAY)
(F.REC)
(R.REC)
(PACK)
(SHUT)
+3.3V
TU-DI
TU-DO
TU-CE
TU-CLK
TU-TUEND
TU-ON
TU-DI
TU-DO
TU-CE
TU-CLK
TU-TUND
TU-ON
TU-DI
TU-DO
TU-CE
TU-CLK
TU-TUND
TU-ON
INPUT/EVR
SECTION
(Page 25)
B
INPUT/EVR
SECTION
(Page 25)
C
INPUT/EVR
SECTION
(Page 25)
D
REC/PB AMP
IC481
SYSTEM CONTROLLER
IC801 (2/5)
R-CH
TUNER
L-CH
TAPE
PB-L
REC-L
FM ANT
ANT GND
AM ANT
ANT GND
FM7V
+B (9V)
+9.6V
Q303,307
+B SWITCH
L-CH
R-CH
TUNER PACK
FM 75Ω
AM
Click on the first or last page to see other HCD-GSX100W / MHC-GSX100W service manuals if exist.