Sony HCD-RG11 / MHC-RG11 Service Manual ▷ View online
13
HCD-RG11
CN732
CN733
CN731
TP connected to pin
q;
(IC751)
C746A
Adjustment Location: CD board
[CD BOARD] (Component Side)
CD SECTION
RF Level Check
Procedure :
1. Connect oscilloscope to pin q; (IC751).
2. Turned Power switch on.
3. Load a disc (YEDS-18) and playback.
4. Confirm that oscilloscope waveform is clear and check RF signal
1. Connect oscilloscope to pin q; (IC751).
2. Turned Power switch on.
3. Load a disc (YEDS-18) and playback.
4. Confirm that oscilloscope waveform is clear and check RF signal
level is correct or not.
IC751 pin
q;
GND
CD board
oscilloscope
Note :
Clear RF signal waveform means that the shape “
◊ ” can be clearly
distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200mV
TIME/DIV : 500ns
TIME/DIV : 500ns
level : 1.4 to 2.1 Vp-p
Note :
1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10M
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.
following checks.
14
HCD-RG11
SECTION 5
DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
C
: panel designation.
Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
• b
: Pattern from the side which enables seeing.
• Indication of transistor.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
no mark : FM
<
tion tolerances.
no mark : FM
<
> : CD
[
] : TAPE
• 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
: FM
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
5-1. Circuit Board Location
MOTOR board
ADDRESS SENSOR board
DRIVER board
TRANS board
VIDEO OUT board
SPDL board
SUB TRANS board
MAIN board
POWER board
PANEL board
CD board
15
15
HCD-RG11
5-2. Block Diagrams
– Tuner/CD Section –
: FM
: CD
• Signal Path
• R-CH is omitted due to same as L-CH
FM 75
Ω
G
AM
JK101
FND1
ANT IN
1
7
IF OUT
8
OSC OUT
5
VT
+B
TU+12V
Q102
FM
10
FM OSC
15
VT1 IN
18
VT1
17
PD1
19
PLL
IC102
12
FM/AM IF
7
FM
14
AM OSC
2
VCO STOP
8
IF REQ
6
DO
4
DI
5
CL
3
CE
XIN
1
XOUT
24
CX101
4.5MHz
RF IF
AMP
AMP
Q101
CF101
CF102
DI
DO
CLK
CE
1
13
3
4
5
5
12
2
14
15
11
6
7
9
RB101
19
AM MIX OUT
IF OUT
9
AM/IF
12
AM OSC
24
VCO STOP
13
IF REQ MUTE
8
AM RF IN
20
AM OSC
22
V REG
23
FM IF
1
AM/FM IF MPX
IC101
11
L OUT
10
R OUT
MUTE
Q106
18
AM IF IN
IFT101
T101
R-CH
A
MAIN
SECTION
6
TUNED
7
STEREO
3
FM SD ADJ
5
FMDET
RV101
TUNER MUTE OUT
77
LC72131 CE
93
CLK
97
LC72131 DI
96
LC72131 BU2114 DO
95
TU STEREO
9
TUNED
10
MASTER CONTROL
IC601(1/2)
DO
CLK
CE
DI
L-CH
COIN
98
SQCK
100
CD RWC
2
CD DRF
8
CD SL+
5
CD SL-
4
TBL ADDRESS
SENSOR
68
IC711
69
CD PIC UP/DOWN SW
70
CD TRAY OPEN SW
71
CD TRAY CLOSE SW
73
CD MOTOR +
OPEN/CLOSE
S701
BU UP/
DOWN
S711
74
MOTOR
DRIVE
9
7
4
2
M
IC701
TURN
MOTOR
M721
OPTICAL PICK-UP
BLOCK
(KSM-213D)
LD
DRIVER
Q731
+5V
LD
GND
FOCUS
COIL
F+
F
T+
T
TRACKING
COIL
IC781
FCS/TRK COIL
SL/SP MOTOR
SL/SP MOTOR
DRIVER
ASP
IC731
1
2
27
26
VR
PD
11
12
18
17
3
CH1 INA
7
MUTE
CH1 OUTA
M
M
MOTOR
SLED
MOTOR
SPINDLE
S01
LIMIT
41
RF SM
VR
58
VCC
VC
A
B
C
D
E
F
DETECTOR
FIN 1
FIN 2
E
3
F
4
LDD
62
LDS
63
FD
16
TO
15
SLD
29
SPD
27
52
DATA
50
CLK
51
CL
53
CE
34
TGL
54
DRF
39
CV-
40
CV+
30
SL-
Q775
31
SL+
35
TOFF
44
SLI
49
DEF
36
TES
37
HFL
33
JP+
32
JP-
DSP
IC751
EFMI
10
EFMO
9
DEF
1
TES
16
HFL
15
JP+
19
JP-
20
COIN
56
4.2M
61
CQCK
57
RWC
54
TGL
18
TOFF
17
CLV+
12
CLV-
13
45
XI
44
XO
X701
16.9344M
37
L CH
40
R CH
R CH
B
MAIN
SECTION
CD-L
2
1
38
SLOF
VP
14
MUTE
Q771,773
CH1 OUTB
CH4 OUTA
CH4 OUTB
CH21 OUTB
CH2 OUTA
CH3 OUTB
CH3 OUTA
4
CH1 INB
25
CH4 INA
9
CH2 INB
20
CH3 INB
SHUTER IN/OUT
28
D MUTE
26
LIMIT SW
27
3
PDO
58
RESET
D732
35
L MUTE
D733
D735
C
MAIN
SECTION
DO,CLK
53
WRQE
55
SQ0UT
CD A MUTE
6
CD WRQ
7
SQOUT
99
CD RESET OUT
3
CD MOTOR-
CD NUMBER SENSOR
NULL
AM IF
FM TUNED
LEVEL
+6.8V
Ver 1.1 2003.11
16
16
HCD-RG11
– Main Section –
: FM
: CD
• Signal Path
• R-CH is omitted due to same as L-CH
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
R-CH
BIAS
OSC
Q214
A
TUNER
SECTION
B
CD
SECTION
LOUT
L-CH
AUDIO SOUND
PROCESSOR
IC301
B1
7
A1
5
17
OUT1
MUTE
Q316
MUTE
CONT
CONT
Q803,804
POWER
AMP
IC501
1
12
6
MUTE
CONT
CONT
Q503,504
MUTE
Q306
MUTE
CONT
CONT
Q305
OVER LOAD
DETECTOR
Q501
D502
PROTECT
DETECTOR
Q308,309
PROTECT
CONT
Q311
PROTECT
SWITCH
Q312
RELAY
DRIVE
DRIVE
Q314,315
RL1
JK601
PHONES
R CH
R CH
L
R
JK310
SPEAKER
28
PHOTO SENSOR B
27
PHOTO SENSOR A
66
TAPE MODE SW B
65
TAPE MODE SW A
26
TAPE B HALF
25
TAPE A HALF
A TRIG
DRIVE
CAP MOTOR
DRIVE
Q605,608
Q604,607
B TRIG
DRIVE
Q603,606
TAPE SOL A
81
TAPE SOL B
82
MECHA VCC
80
MOTOR H
16
TAPE REC
IC601(2/2)
MASTER CONTROL
22
SPEANA IN L
87
TAPE REC MUTE
24
AMS IN
76
SYSTEM MUTE OUT
78
STK MUTE
XTAL 6.0MHZ
XTAL 6.0MHZ
6MHz
X601
FLOURESCENT
INDICATOR TUBE
VF
VF
FUCTION
KEY
VR601
VOLUME
FLD601
S601-609
T911
MAIN TRANS
-30V
REG
+5V
REG
Q911
D541
D811
+B
-B
POWER
AMP
D801-804
EVER +5.6V
VF
VF
D902-905
AC
IN
IN
RELAY
DRIVE
DRIVE
Q901
IC901
T901
SUB TRANS
1
2
3
+5.6V
REG
1
3
RY901
+12V
REG
1
3
+9V
REG
1
3
CD POWER
SWITCH
+5V
REG
1
3
IC804
Q801,802
IC803
IC802
IC801
CD +5V
TU +B
TU +12V
TC +12V
CD +7V
D812-815
POW SAVE
83
RESET
12
Q602
Q601
L251
BIAS
BIAS
67
TAPE FWD REC SW B
PLAY/REC
CONTROL
Q209
PLAY/REC
SWITCH
Q210,213
BIAS
SWITCH
Q211,212
SWITCH
Q203,205
88
TAPE BIAS
PB/REQ EQ AMP
IC201
CH1/A
1
REC OUT
9
5
PRE OUT
Q201
MUTE
CH1/B
2
11
REC IN
6
MIX OUT
91
TAPE A/B
19
TAPE A/B
Q320,321
AMS
Q207
MUTE
Q215
MUTE
79
TAPE MUTE OUT (PB)
VIDEO
OUT
VIDEO
R
INPUT
AUDIO
JK602
JK603
SC
13
C1
9
SI
14
1
MN1
94
BD3871 DATA/LATCH
16
OUT2
R-CH
MUTE
Q581
MOTOR L
SFR601
Q651
75
SPK RELY ON
JW6
JW3
JW1
1
CD ON/OFF
FAN +B
D543
D542
D809 -810
RESET
RESET
SWITCH
POWER DOWN IN
11
D602
REMOTE IN
29
RM601
D311
R-CH
ERASE
HEAD
REC/PB
HEAD
R-CH
PB
HEAD
DECK-B
DECK-A
A HALF
B HALF
A MODE
B MODE
REC(FWD)
A PHOTO
SENSOR
B PHOTO
SENSOR
MECHA DECK
B SOL
A SOL
CAP M+
L
GAME
C
TUNER
SECTION
DO,CLK
R-CH
17
86
4
SEL1
BUFFER
Q303
3
1
IC302
CLK
LED
DRIVER
IC602
2
16
13
1
3
LED602-609
DO
CLK
92
BU2114 LATCH
M +9V
µCOM +B
D601
LED +5.6V
-VP
KEY INPUT0
19
FUCTION
KEY
S612-620
KEY INPUT1
20
FUCTION
KEY
S623-629
KEY INPUT2
21
3
1
VR ENCODER A
13
VR ENCODER B
14
LED
DRIVER
POWER SW
84
LED601
(POWER)
39 33
47
50
52
63
40
45 .
.
1G 10G
P1
P22
REMOTE
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