Sony HCD-GPX5 Service Manual ▷ View online
HCD-GPX5
21
21
CD SECTION
Note:
1.
CD Block is basically constructed to operate without
adjustment.
adjustment.
2.
Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3.
Use an oscilloscope with more than 10 M
Ω impedance.
4.
Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.
when the signal level is low than specified value with the
following checks.
5.
Check the focus bias check when optical block is replaced.
FOCUS BIAS CHECK
Procedure :
1. Connect the oscilloscope to TP012 (RFACO) and TP013 (VC)
1. Connect the oscilloscope to TP012 (RFACO) and TP013 (VC)
on the BD board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the
3. Press the
u
CD
button.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (
A good eye pattern means that the diamond shape (
◊) in the
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
Checking Location:
+
–
–
BD board
TP012 (RFACO)
TP013 (VC)
TP013 (VC)
oscilloscope
(DC range)
VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 500 ns
TIME/DIV: 500 ns
0.7
When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.
for AC range and raise vertical sensitivity.
0.3 Vp-p
– BD BOARD (Conductor Side) –
TP012
(RFACO)
TP013
(VC)
HCD-GPX5
22
22
9
RIN
4
OUT1
2
OUT2
M701
(LOADING)
S701
(OUT)
S702
(CHUCK)
S703
(TRIGGER)
M
LOADING MOTOR DRIVE
IC701
7
FIN
A/D
CONVERTER
CH2OUTF
CH2OUTR
23
24
21
4
5
5
7
17
18
16
15
RFACI
ASYO
ASYI
FILTER
FILO
PCO
CLTV
FILI
DIGITAL PLL
ASYMMETRY
CORRECTOR
EFM
DEMODULATOR
CD DSP
IC101 (1/2)
MDP
DIGITAL
CLV
PROCESSOR
32K
RAM
ERROR
CORRECTOR
INTERNAL BUS
SQCK
SQSO
EXCK
AOUT1
C4M
XTSL
XTAO
XTAI
AOUT2
R-CH
D/A
DIGITAL
INTERFACE
D/A
CONVERTER
SELECTOR
CLOCK
GENERATOR
SUBCODE
PROCESSOR
SCOR
WFCK
XUGF
GFS
EMPH
SENS
DATA
CLOCK
XLAT
SBSO
CD SENS
CD DATA
CD XLT
TEI
FEI
FOCUS/
TRACKING/SLED
SERVO DSP
FOCUS/TRACKING/SLED
PWM GENERATOR
SFDR
CH3FIN
CH4IN
CH3RIN
CH3OUTF
CH3OUTR
CH1FIN
CH1RIN
CH2FIN
CH2RIN
20
MUTE
SRDR
TFDR
TRDR
FFDR
FRDR
SSTP
COUT
MIRR,
DFCT, FOK
DETECTOR
SERVO AUTO
SEQUENCER
SERVO
INTERFACE
CPU INTERFACE
SCLK
TO CPU INTERFACE
FOK
MIRR
DFCT
2
OPIN+
CH4OUTF
CH4OUTF
27
OPOUT
M101
(SPINDLE)
MOTOR
DRIVE
MOTOR
DRIVE
COIL
DRIVE
CH1OUTF
CH1OUTR
COIL
DRIVE
M
M
M102
(SLED)
MOTOR/COIL DRIVE
IC251
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
CD DSP
IC101 (2/2)
• SIGNAL PATH
: CD PLAY
14
13
11
12
CD SCOR
A
CD
13
11
12
9
10
14
112
101
20 22
3
1
2
7
TO SERVO AUTO
SEQUENCER
39
48 50
XPCK
105
47 49
42
43
6
XRST
93
CD XRST
22
89 90
76
73
110
86
72
81
91 92
108
100
95 98 97
103 104 106 64
38
CD CLK
34 23
LRCK
BCK
PCMD
59 62 61
LRCKI
BCKI
PCMDI
58 56 57
24 19
25
26
27
28
23
21
19
18
35
34
E
B
A
CD +3V
F
DETECTOR
A
B
C
D
RF
SUMMING
AMP
FOCUS
ERROR
AMP
TRACKING
ERROR AMP
RFACO
FEO
TEO
E
F
AUTOMATIC
POWER
CONTROL
Q10
APC LD
AMP
LD
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSM-215DAP)
PD
I-V AMP
D
C
EQ_
IN
38
33
32
EQ
AC_
SUM
RFAC
VCA
X171
16.9344MHz
SYSTEM CONTROLLER
IC306 (1/3)
S101
(LIMIT)
XTCN 55
CD AMUTE 39
R-CH
MUTING
Q102
CD MUTING
CONTROL
Q317, 318
• R-ch is omitted due to same as L-ch.
XTACN
88
65
(CHUCK SW) CDM80 SW2
61
(TRIGGER SW) CDM80 SW3
63
(OUT SW) CDM80 SW1
59
CDM80 LOAD-OUT
60
CDM80 LOAD-IN
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – CD SERVO Section –
(Page 23)
HCD-GPX5
23
23
1
INPUT SELECT,
TONE CONTROL,
ELECTRICAL VOLUME
IC302
POWER AMP
IC601
MD IN L
61
J301
CD IN L
36
VOL
IN L
IN L
R-CH
R-CH
R-CH
CD
L-CH
HRP350
(REC/PB/ERASE)
R-CH
ERASE
R/P
BIAS
63
TU IN L
11
TAPE IN L
7
PB
OUT L
OUT L
3
TAPE L
15
REC OUT L
A
37
TONE
OUT
33
VOL
OUT L
EQ
7 9
REC/PB SWITCH
IC301
8
M+10V
BIAS OSC
T301
4
CONT
LEVEL SHIFT
Q301, 302
BIAS OSC
Q303, 304
BIAS TRAP
T101
REC BIAS
(L)
RIPPLE
FILTER
Q305
REC BIAS
SWITCH
Q306, 307
RV101
M
M
CAPSTAN/REEL
MOTOR DRIVE
Q310, 311
TRGM+
PACK
F REC
R REC
END SW
PLAY SW
TC CONT
TC TRG
HALF
END SW
PLAY SW
PLUNGER
DRIVE
Q308, 309
CAPSTAN/
REEL
TAPE MECHANISM
DECK BLOCK
TUNED
STEREO
MUTE
RDS DATA
RDS INT
DI
DO
CLK
CE
TUNED
STEREO
ST MUTE
RDS DATA
RDS INT
ST DIN
ST DOUT
ST CLK
ST CE
ROUT
R-CH
LOUT
AM
FM 75
Ω
ANTENNA
FM/AM
TUNER PACK
76
TC TRG
77
TC CAPM CONT
95
TC HALF/REC SW
75
TC PLAY
94
TC END SW
78
BIAS ON
79
TC R/P
71
ST DATA OUT
72
ST DATA IN
73
ST CLK
70
ST CE
69
ST TUNED
68
ST STEREO
67
ST MUTE
58
RDS DATA
ST DIN
ST DOUT
ST CLK
ST CE
TUNED
STEREO
ST MUTE
RSD DATA
RDS INT
TC TRG
TC CONT
HALF
PLAY SW
END SW
BIAS
R/P
87
EQ DATA
88
EQ CLK
LINE MUTE
86
AMP POWER
83
AC DET
C
84
PROTECT
85
SP RELAY
18
RDS CLK
19
SI
18
SC
R-CH
R-CH
VP
CT
OUT
OCP
R-CH
R-CH
MUTING
Q501
D609
D611
D608
THP801
OVER LOAD
DETECT
Q502
POWER ON
MUTING
Q601
PROTECT
SWICTH
Q608
STANDBY
SWITCH
Q604
MUTING
CONTROL
Q602, 603
TEMPERATURE
DETECT
Q607
PROTECT
CONTROL
IC602
2
4
3
1
RELAY
OFF SWITCH
Q609
RELAY
DRIVE
Q610, 611
SPEAKER
IMPEDANCE
USE 6 – 16
Ω
TM301
RY301
+
+
+
RELAY
B+ SWITCH
Q605, 606
+POWER
UNREG
PHONES
L
R
J321
FAN MOTOR
DRIVE
Q315
M301
(FAN)
(FAN)
+13V
REGULATOR
Q324
M
OVER LOAD
DETECT
Q316
HP SW
B
L
R
MD/VIDEO
• SIGNAL PATH
: CD PLAY
: FM
: AUX IN
: TAPE PLAY
: TAPE REC
• R-ch is omitted due to same as L-ch.
SYSTEM CONTROLLER
IC306 (2/3)
(UK)
+
+
–
–
15
X IN
13
X302
16MHz
X OUT
11
XC OUT
10
X301
32.768kHz
XC IN
6-2.
BLOCK DIAGRAM – MAIN Section –
(Page 22)
(Page 24)
(Page 24)
HCD-GPX5
24
24
4
42 ELV E1/BASS A
43 ELV E0/BASS B
REMOTE CONTROL
RECEIVER
IC802
S701 – 708,
S709 – 717,
S709 – 717,
S718 – 725, 726
HP SW
B
ROTARY
ENCODER
BASS
S801
40 ELV E3/TRE A
41 ELV E2/TRE B
ROTARY
ENCODER
TREBLE
S802
5
VOL A
6
VOL B
3
STBY LED
ROTARY
ENCODER
VOLUME
S803
21
FL CLK
FL DATA
7
FL STB
57
CD BD POWER
80
RY ON
7
DIN
8
CLK
9
STB
1
LED1
FL701
FLUORESCENT
INDICATOR
TUBE
LED DRIVE
Q801
n N
TAPE
D803
u
CD
D801
2
LED2
LED DRIVE
Q802
BAND
TUNER
D802
3
LED3
LED DRIVE
Q803
LED DRIVE
Q804
I/1
D804
FL/LED DRIVER
IC801
SYSTEM CONTROLLER
IC306 (3/3)
100
SIRCS IN/
WAKE
WAKE
74 KEY WAKE UP
F902
D911
RECT
D910
D910
RY901
F901
T901
POWER
TRANSFORMER
RECT
D901
D901
RECT
D902 – 905
+9V
REGULATOR
IC304
+10V
REGULATOR
IC901
+POWER
–POWER
UNREG
A+9V
M+10V
D912
RECT
D906 – 909
RELAY DRIVE
Q319, 320
+7V
REGULATOR
IC902
+4V
REGULATOR
IC903
M+7V
D+4V
FL AC
FL AC
D327
FL –30V
–30V REGULATOR
Q805 – 807
CURRENT
LIMIT
Q808
(AC IN)
AC DET
C
B+ SWITCH
Q312, 313
D311
D312
AVDD
DVDD
30 – 42
GR1 – GR12
14 – 29
SG1 – SG16
89 – 91
KEY1 – KEY3
12
RESET
20
AC-CUT
VOLTAGE DETECT
IC305
53
SW-POWER
RESET SWITCH
Q316
D306
D308
A+9V
U-COM B+
D317, 318
B+ SWITCH
Q322, 323
SWITCH
Q321
SUB POWER
BLOCK
U COM +B
AC
SW
SW 9V
6-3.
BLOCK DIAGRAM – PANEL/POWER SUPPLY Section –
(Page 23)
(Page 23)
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