Sony HCD-RV7 / HCD-RV8 / MHC-RV7 / MHC-RV8 Service Manual ▷ View online
HCD-RV7/RV8
21
21
– VIDEO BOARD (Component Side) –
TP308
(V-OUT)
TP70
(54 MHz)
TP182
(4.2336 MHz)
TP415
(L-OUT)
TP413
(R-OUT)
RV501
Video
Level
Adjustment
– BD BOARD (Conductor Side) –
TP70
(TE)
TP68
(FE)
TP71
(RFDC)
TP73
(DVC)
TP72
(RFAC)
Note:
Clear RF signal waveform means that the shape “
◊ ” can be clearly
distinguished at the center of the waveform.
TRAVERSE LEVEL CHECK
Procedure :
1. Connect an oscilloscope to TP70 (TE) and TP73 (DVC) on the
1. Connect an oscilloscope to TP70 (TE) and TP73 (DVC) on the
BD board.
2. Turn the power ON.
3. Load a disc (LUV-P01) and playback the number nine track.
4. Press the hH button. (Becomes the 1 track jump mode.)
5. Confirm that the level B and A (DC voltage) on the oscilloscope
3. Load a disc (LUV-P01) and playback the number nine track.
4. Press the hH button. (Becomes the 1 track jump mode.)
5. Confirm that the level B and A (DC voltage) on the oscilloscope
waveform.
Connecting Location:
Note:
1.
CD Block is basically designed to operate without adjustment. Therefore,
check each item in order given.
check each item in order given.
2.
Use LUV-P01 (Part No. 4-999-032-01) unless otherwise indicated.
3.
Use an oscilloscope with more than 10M
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.
signal level is low than specified value with the following checks.
S-CURVE CHECK
Procedure :
1. Connect an oscilloscope to TP68 (FE) and TP73 (DVC) on the
1. Connect an oscilloscope to TP68 (FE) and TP73 (DVC) on the
BD board.
2. Turn the power ON.
3. Load a disc (LUV-P01) and actuate the focus search. (In
3. Load a disc (LUV-P01) and actuate the focus search. (In
consequence of open and close the disc tray, actuate the focus
search)
search)
4. Confirm that the oscilloscope waveform (S-curve) is
symmetrical between A and B. And confirm peak to peak level
within 2
within 2
± 0.5 Vp-p.
Note:
• Try to measure several times to make sure than the ratio
of A : B or B : A is more than 10 : 7.
• Take sweep time as long as possible and light up the
brightness to obtain best waveform.
RF LEVEL CHECK
Procedure :
1. Connect an oscilloscope CH1 to TP71 (RFDC), CH2 to TP72
1. Connect an oscilloscope CH1 to TP71 (RFDC), CH2 to TP72
(RFAC) and TP73 (DVC) on the BD board.
2. Turn the power ON.
3. Load a disc (LUV-P01) and playback the number nine track.
4. Confirm that oscilloscope waveform is clear and check if RF
3. Load a disc (LUV-P01) and playback the number nine track.
4. Confirm that oscilloscope waveform is clear and check if RF
signal level is correct or not.
level=1.2
±
0.55Vp-p
symmetry
A (DC voltage)
center of
waveform
waveform
B
DVC
1 track jump waveform
TP70 (TE)
TP73 (DVC)
BD board
+
–
–
oscilloscope
RF signal waveform
VOLT/DIV : 200mV
TIME/DIV : 500ns
TIME/DIV : 500ns
level : 0.75
±
0.1Vp-p (RFDC)
1.05
±
0.3Vp-p (RFAC)
+
–
–
oscilloscope
TP71 (RFDC)
TP72 (RFAC)
BD board
TP73 (DVC)
symmetry
S-curve waveform
within 2
±
0.5Vp-p
A
B
+
–
–
oscilloscope
BD board
TP68 (FE)
TP73 (DVC)
CD SECTION
VIDEO SECTION
VIDEO LEVEL ADJUSTMENT
(AUDIO LEVEL/VIDEO CLOCK/AUDIO SERVO
CLOCK CHECK)
(AUDIO LEVEL/VIDEO CLOCK/AUDIO SERVO
CLOCK CHECK)
Procedure :
1. Connect an oscilloscope to TP308 (V-OUT) on the VIDEO
1. Connect an oscilloscope to TP308 (V-OUT) on the VIDEO
board.
2. Connect a level meter to TP415 (L-OUT) and TP413 (R-OUT)
on the VIDEO board.
3. Connect a frequency counter to TP70 (54 MHz) and TP182
(4.2336 MHz) on the VIDEO board.
3. Turn the power ON.
4. Set a test disc (HLV-402 (Part No. 8-909-870-00))
5. Press three buttons
4. Set a test disc (HLV-402 (Part No. 8-909-870-00))
5. Press three buttons
x
,
[ENTER]
, and
[OPEN/CLOSE]
simultaneously.
6. The message “MPEG AV TEST” is displayed on the fluorescent
indicator tube. Color bar signal outputs and sine-wave (1 kHz
0dB) appears.
0dB) appears.
7. Adjust the RV501 on the VIDEO board for 0.714
± 0.05 Vp-p.
Note:
TP308 (V-OUT) on the VIDEO board must be teminated by 75
Ω.
8. Confirm that the value of level meter is 2.5
± 2.0 dBs. (If audio
output disappear, press the
[PLAY MODE]
button twice)
9. Confirm that the value of frequency counter is 54 MHz
± 400
Hz.
10. Confirm that the value of frequency counter is 4,2336 MHz.
11. Change disc to a MP3 test disc (MP3 1kHz 0dB sine-wave is
11. Change disc to a MP3 test disc (MP3 1kHz 0dB sine-wave is
recorded)
12. Confirm that the value of level meter is 2.4
± 2.0 dBs.
+
–
–
level meter
VIDEO board
TP415 (L-OUT)
TP413 (R-OUT)
VIDEO board
TP70 (54 MHz)
TP182 (4.2336 MHz)
+
–
–
frequency counter
VIDEO board
TP308 (V-OUT)
+
–
–
oscilloscope
0.714
±
0.05 Vp-p
Connecting and Adjustment Location:
HCD-RV7/RV8
22
22
SECTION 7
DIAGRAMS
7-1.
BLOCK DIAGRAM – CD SERVO Section –
43
SYSRST
VO1–
VO1+
6
7
8
9
16
18
11
10
12
2
1
173
137 138
140 141
142 143
27
26
31
32
34
35
1
2
5
10
DETECTOR
A
B
C
D
RF
SUMMING
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
RFAC
FE
RF AMP,
FOCUS/TRACKING ERROR AMP
IC103
TE
E
F
F I-V AMP
E I-V AMP
AUTOMATIC
POWER
CONTROL
Q101
APC LD
AMP
LD
LD
PD
LASER DIODE
RFAC
164 FE
160 RFDC
162 TE
163 SE
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO PROCESSOR
IC505 (1/2)
MDP
133
SFDR
IN3+
IN4
IN3–
VO3+
VO3–
IN2–
IN2+
IN1–
IN1+
SRDR
TFDR
TRDR
FFDR
FRDR
SSTP
135
VO4+
VO4–
M101
(SPINDLE)
MOTOR
DRIVE
MOTOR
DRIVE
VO2–
VO2+
M
M
M102
(SLED)
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC102
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
OPTICAL PICK-UP
BLOCK
(A-MAX. 3)
SW
PD
55
56
47
52
168
170 171
169
FILTER
FILO
PCO
CLTV
FILI
EQ
IN
IN
3
4
EQ
AC
SUM
17
FEI
RF DC
AMP
28
RFDCO
29
RFDCI
COIL
DRIVE
COIL
DRIVE
D/A1
D/A3
D/A4
D/A2
48
49
BU UP/DOWN-SW
TBL-SENS
DISC TRAY
STATUS SENSOR
IC711
OPEN-SW 46
CLOSE-SW 47
OPEN
CLOSE
S701
DISC TRAY OPEN/CLOSE
DETECT
S711
OPTICAL PICK-UP
UP/DOWN DETECT
LOAD-OUT 45
LOAD-IN 44
9
7
RIN
FIN
MOTOR
DRIVE
4
2
OUT1
OUT2
TURN MOTOR
DRIVER
IC701
D/A
CONVERTER
IC506
M721
(TURN)
M
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (1/4)
• SIGNAL PATH
: CD PLAY
• R-ch is omitted due to same as L-ch.
RFAC
VCA
(LIMIT)
When the optical
pick-up is inner
position
pick-up is inner
position
ON :
150
149
XTAO
XTAI
X501
33.8688MHz
RFC
26
FREQUENCY
SELECT SWITCH
Q102
93
91
88
124
PCMD
BCK
LRCK
C2PO
C2PO
111
102
109
113
DATA
CLOK
XLAT
SENS
96
126
98
114
SCOR
SQSO
L SQCK
L SCLK
131
121
105
GFS
L FOK
L CDXRST
189
XTSL
6
5
3
AO5
AO4
AO3
2
13
9
AO2
AO1
AO6
D/A4
D/A2
D/A1
D/A3
HUE
SHARPNESS
STBY
8
RST
4
CLK
DATA
LD
11
12
CLK
10
LD
DI
DATA
BCK
LRCK
C2PO
B
(Page 23)
DATA, BCK,
LRCK, C2PO
CONT
DATA
CLOK
XLAT
SENS
SCOR
SQSO
SQCK
SCLK
GFS
FOK
XRST
C
(Page 23)
A
(Page 23)
DATA, CLK, LD
D
(Page 23)
SYSRST
E
(Page 23)
SHARPNESS, HUE
F
(Page 23)
DATA, CLOK, XLAT, SENS,
SCOR, SQSO, SQCK,
SCLK, GFS, FOK, XRST
15
23
HCD-RV7/RV8
23
23
7-2.
BLOCK DIAGRAM – AUDIO/VIDEO CD Section –
PROGRAM ROM
IC508
• SIGNAL PATH
: CD PLAY (AUDIO)
: CD PLAY (VIDEO)
DIGITAL FILTER,
D/A CONVERTER
IC504
MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL ENCODER
IC505 (2/2)
7
8
VOUTL
VOUTR
1
2
3
DATA
BCK
LRCK
DRADR0 – DRADR10
DRDAT0 – DRDAT15
D0 – D15
D0 – D15
A0 – A10
A0 – A10
74
18
73 72 68
6
7
201
203
204
CPSIG
AUDDTO0
AUDBCK
AUDLRCK
16
MLCK
205
AUDXCLKO
14
13
15
DATA
CLK
LAT
30
29
26
GPIO14
GPIO13
GPIO11
28
GPIO12
CSIG
34 – 37, 39 – 45
49 – 56, 59 – 66
23 – 26, 29 – 34, 22
A0 – A10
12 – 5, 27, 26, 31
D8 – D15
A10 – A17
23, 25, 4, 28, 29, 3, 2, 30
D0 – D7
DQ0 – DQ7
A0 – A9, A18
DQ0 – DQ15
ADDRESS BUS
DATA BUS
D-RAM
IC507
A0 – A10
13 – 15, 17 – 21
WE
24
OE
RAS
CAS
DRCAS
DRRAS
DRWEL
NVOEL
B.P.F.
1
VOUT
10 VIN
5
CONT IN
6
VOUT
1
VIN
5
BGP
8
TINT
B.P.F.
C AMP
IC303
Y AMP
IC304
LOW-PASS
FILER
IC102
IC102
70 76 77 78
DRDQM1
DRDQM0
DRBS
DRCK
13 14
GPIO1
GPIO0
15 19 18 16
GPIO3
GPIO4
GPIO5
GPIO2
• R-ch is omitted due to same as L-ch.
G
(Page 25)
CD L-CH
D
(Page 22)
DATA, CLK, LD
F
(Page 22)
SHARPNESS,
HUE
(Page 25)
V SW
R-CH
2, 4, 5, 7, 8, 10, 11, 13, 42,
44, 45, 47, 48, 50, 51, 53
16
17
20
CLK
BA0
LDQM
38
15
UDQM
39
92
90
87
123
L CDDATA
L CDBCK
L CDLRCK
L CDC2PO
L CDC2PO
110
103
108
112
L DDAT
L DCLK
L XLAT
L SENS
L SENS
95
125
99
115
L SCOR
L SQSO
SQCK
SCLK
SCLK
132
120
106
L GFS
FOK
XRST
DATA
BCK
LRCK
C2PO
B
(Page 22)
DATA, BCK,
LRCK, C2PO
LRCK, C2PO
DATA
CLOK
XLAT
SENS
SCOR
SQSO
SQCK
SCLK
GFS
FOK
XRST
C
(Page 22)
DATA, CLOK, XLAT, SENS,
SCOR, SQSO, SQCK,
SCLK, GFS, FOK, XRST
SCOR, SQSO, SQCK,
SCLK, GFS, FOK, XRST
24 GPIO9
CONT
A
(Page 22)
81 SYSRST
SYSRST
E
(Page 22)
+3.3V
REGULATOR
Q581
CD D+5V,
CD A+5V
CD A+5V
5
VDD
6
VCC
DATA
CLK
LD
SDO
SDI
SCK
SCS
SOK
SRQ
3
VRF
VIDEO
LEVEL
LEVEL
RV501
C SYNC BUFFER
IC302
VIDEO AMP
IC307
Y SYNC BUFFER
Q302
SYNC BUFFER
Q301
SYNC
SEPARATOR
IC301
+
8
BUF
IN
IN
1
BUF
OUT
6
OUT
5
OUTSAG
3
IN
2
STBY
VIDEO MUTING
CONTROL SWITCH
Q370
VIDEO SELECT SWITCH,
VIDEO AMP
IC781
7
VOUT
1
3
VIN1
VIN2
SW1
2
J601(1/2)
J401
VIDEO OUT
GAME
INPUT
VIDEO
VIDEO
HUE
SHARPNESS
H
(Page 25)
V MUTE
J
(Page 25)
SDO, SDI, SCK,
SCS, SOK, SRQ
K
207
206
CLKB
CLKA
X502
27MHz
: GAME INPUT (VIDEO)
HCD-RV7/RV8
24
24
FM ANT
ANT GND
AM ANT
ANT GND
ST-DIN
ST-CLK
ST-CE
ST-MUTE
TUNED
STEREO
L-CH
R-CH
ST-DOUT
TUNER UNIT
FM 75Ω
AM
R-CH
25
ST-DIN
23
ST-DOUT
27
ST-CLK
22
ST-CE
21
ST-MUTE
DI
DO
CLK
CE
MUTING
3
TUNED
2
STEREO
TUNED
STEREO
R-CH
L-CH
R-CH
L-CH
R-CH
R-CH
HP901
(PB)
HRPE901
(REC/PB/ERASE)
1
3
2
4
R-CH
R-CH
REC/PB SWITCHING
IC302
R-CH
BIAS OSC
T301
BIAS
TRAP
REC BIAS
SWITCH
Q301, 307, 310
TC +10V
BIAS OSC
Q302, 303
TRIGGER
PLUNGER DRIVE
(DECK B)
Q391, 392
PM902
TRIGGER PLUNGER
(DECK B)
51
A-TRIG
TRIGGER
PLUNGER DRIVE
(DECK A)
Q393, 394
PM901
TRIGGER PLUNGER
(DECK A)
52
B-TRIG
90
B-SHUT
89
A-SHUT
34
32
BIN1
AIN1
15 13 12
14
28
27
EQOUT1
26
PB-OUT1
TAI1
MUTE
DECK A/B SELECT SWITCH,
PB EQ AMP
IC301 (1/2)
R-CH
23
REC-
OUT1
OUT1
REC-IN1
ALC1
REC EQ AMP, ALC
IC301 (2/2)
21
R-CH
R-CH
68
ALC
M
(Page 25)
TAPE
L-CH
L
(Page 25)
TUNER
L-CH
N
(Page 25)
REC
L-CH
55 CAPM-CNT1
54 CAPM-H/L
65 BIAS
CAPSTAN
MOTOR DRIVE
Q396, 397
M
M
M901
(CAPSTAN)
57
B-PLAY
56
A-PLAY
11
ALC ON/OFF
S1002
(DECK B PLAY)
S1001
(DECK A PLAY)
70
A-HALF
S1003
(DECK A HALF)
91
B-HALF
S1006
(DECK B HALF)
S1009
(DECK B REC)
S1005
(DECK A REC)
D +3.3V
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (2/4)
• SIGNAL PATH
• R-ch is omitted due to same as L-ch.
: TUNER (FM/AM)
: TAPE PLAY (DECK A)
: REC
: TAPE PLAY (DECK B)
ROTATION
DETECT SENSOR
(DECK A)
IC1001
ROTATION
DETECT SENSOR
(DECK B)
IC1002
DO
CE
MUTING
TUNED
STEREO
DI
CLK
REC BIAS (L)
(DECK B)
RV304
REC BIAS (R)
(DECK B)
RV354
CAPSTAN MOTOR
CONTROL SWITCH
Q1001
Q395
TAPE SPEED
(HIGH)
RV1001
TAPE SPEED
(NORMAL)
RV1002
A/B
NORMAL/HIGH SPEED
MUTE ON/OFF
REC MUTE ON/OFF
A/B
NOR/HIGH
REC MUTE
58
53
61 67 66
A/B
NOR/HIGH
REC-MUTE
PB-A/B
EQ-H/N
TC-MUTE
AMS-IN
REC MUTE
EQ
ALC
REC LEVEL (L)
(DECK B)
RV301
69
TC-RELAY
+
MUTING
Q306
MUTING CONTROL
SWITCH
Q389
BUFFER
Q390, 398, 399
LOW-PASS
FILTER
IC303
24
ANTENNA
REC/PB
SWITCHING
Q304, 305
D +3.3V
D +3.3V
7-3.
BLOCK DIAGRAM – TUNER/TAPE DECK Section –
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