Sony HCD-RG88 Service Manual ▷ View online
HCD-RG88
25
25
7-3.
BLOCK DIAGRAM – MAIN Section –
–
GEQ DATA
GEQ CLK
81 82
M891
(FAN)
(FAN)
+
–
+
+
–
+
–
+
+
FRONT SPEAKER
IMPEDANCE
USE 6–16Ω
L
R
SURROUND
SPEAKER
IMPEDANCE
USE 24Ω
L
R
PHONES
J631
RY501
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (3/4)
R-ch is omitted due to same as L-ch.
CD L-CH
A
(Page 23)
TAPE L-CH
C
(Page 24)
TUNER L-CH
B
(Page 24)
T501
D507
D511
FAN MOTOR
DRIVE
Q891, 892
FAN MOTOR
ON SWITCH
Q831
OVER LOAD
DETECT SWITCH
Q510
PROTECT SWITCH
Q502
OVER LOAD
DETECT SWITCH
Q509
OVER LOAD
DETECT
Q501, 551
DC DETECT
SWITCH
Q507, 508
M
HEADPHONE MUTING
Q812, 862
MUTING CONTROL
SWITCH
Q861
RY502
+
+
+
TH701
+
D502
MUTING
Q103
MUTING CONTROL
SWITCH
Q504, 505
STANDBY
SWITCH
Q503, 504, 581
R-CH
D841
R-CH
R-CH
18
15
17
16
OUT1
VOLIN1
14
22
21
TOUT1
VOLUME
CONTROL
SOUND
CONTROL
CIRCUIT
INPUT
SELECT
SWITCH
+
R-CH
8
+
R-CH
R-CH
R-CH
INPUT SELECT SWITCH,
TONE CONTROL,
ELECTRICAL VOLUME
IC102
IND1
INB1
INA1
INC1
6
4
3
2
INEX1
SWOUT
BB B1
BB A1
RECB1
DATA
CLOCK
7
5
24
SAOUT
MIC
19
+
CPU
INTERFACE
R-CH
J750
L
R
MD/VIDEO
(AUDIO) IN
R-CH
J601
J401
L
R
GAME
INPUT
REC L-CH
D
(Page 24)
SPEANA
(Page 26)
MIC
AUDIO
VIDEO OUT
VIDEO
J721
MIC AMP
IC722 (1/2)
FEED BACK
SWITCH
Q101
SIGNAL PATH
: TUNER (FM/AM)
: CD PLAY
: TAPE PLAY
: MD/VIDEO (AUDIO) IN
: GAME INPUT (AUDIO)
: GAME INPUT (AUDIO)
: GAME INPUT (VIDEO)
: REC
: MIC INPUT
SURROUND
SPEAKER PROTECT
RELAY DRIVE
Q513
FRONT SPEAKER
PROTECT
RELAY DRIVE
Q512
–2
–1
POWER AMP
IC501
RV722
MIC LEVEL
MIC
CONTROL
Q721
A +10V
MIC AMP
IC722 (2/2)
E
+
SUB WOOFER
OUT
IMPEDANCE
USE 8Ω
TM801
RY801
SUB WOOFER
PROTECT
RELAY DRIVE
Q824
–1
–2
OVER LOAD
DETECT SWITCH
Q511
OVER LOAD
DETECT SWITCH
Q825
87
FRONT-RELAY
97
SW RELAY
80
LINE-MUTE
86
LINK-RELAY
78
HP MUTE
79
HP-DETECT
88
PROTECTOR
83
STK-MUTE
TEMPERATURE
DETECT SWITCH
Q505, 506
BUFFER
IC901 (2/2)
LOW-PASS
FILTER
IC901 (1/2)
9
7
4
VOLUME
CONTROL
2
8
LINE AMP
IC903 (1/2)
FILTER AMP
IC903 (2/2)
AGC
Q905
MUTING
Q999
OVER LOAD
DETECT
Q1004, 1054
STANDBY
SWITCH
Q1001-1003
LINE AMP,
ELECTRICAL VOLUME
IC902
SUB WOOFER AMP
IC502 (1/2)
SUB WOOFER AMP
IC502 (2/2)
1
AD-KEY
7
SW-SOLID-LED
5
SW-LINK-LED
94 SW-AD-KEY
59 SW-ON-LED
71 SW-LINK-LED
72
SW-MATRIX-
SURR-1-LED
SW-MATRIX-
SURR-2-LED
SURR-1-LED
SW-MATRIX-
SURR-2-LED
60
4
SW-MTRX-SURR-LED
6
SW-WIDE-LED
2
VOLUME
CN101
(TO SS-WGV8)
SYSTEM CONTROL
HCD-RG88
26
26
FL601
FLUORESCENT
INDICATOR TUBE
1 – 10, 12 – 22,
24 – 41, 43, 44
P1 – P41
1G – 15G
100 – 86
17 – 12
67 – 72
64 – 66
F01 – F06
BPF0 – BPF5
4 LINE IN
11
L+R
BAND-PASS
FILTER
IC602
73 ALL-BAND
6 REC IN
80 VOLUME-A
79 VOLUME-B
ROTARY
ENCODER
S748
VOLUME
X
(Page 25)
E
SPEANA
X601
4MHz
83 X1
82 X0
52 – 59, 74
LED-TAPE,
LED-TUNER,
LED-MD-VIDEO,
LED-CD,
LED-GAME,
LED-DISC1,
LED-DISC2,
LED-DISC3,
LED-DISC2,
LED-DISC3,
LED-REC
LED DRIVE
Q601 – 605,
Q791 – 793, 795
D604 – 608,
D791 – 793, 795
D791 – 793, 795
D794
KEY0 – KEY2
S751, 752, 754 – 762,
S765 – 780, 782 – 792
S765 – 780, 782 – 792
60
I2C-DATA
61
I2C-CLOCK
77
RESET
30 IIC-DATA
29 IIC-CLK
41 GC-RESET
74 POWER-KEY
73 DISPLAY-KEY
S749
S750
DISPLAY
75 STBY-LED
4 SIRCS
X502
16MHz
15 X-IN
13 X-OUT
X501
32.768kHz
10 XC-IN
11 XC-OUT
38
CD-POWER
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (4/4)
84
STBY-RELAY
12
RESET
20
AC-CUT
B+ SWITCH
Q911, 912
RECT
D906 – 909
RECT
D914 – 917
CD +3.3V
+3.3V
REGULATOR
Q102
+5V
REGULATOR
IC911
M +9V
M +7V
A +10V
TC +10V
D920 – 922
D502
D504
D501
D503
+4V
REGULATOR
IC951
+4V
REGULATOR
IC971
D +4V
+9V
REGULATOR
IC961
+10V
REGULATOR
IC101
CD D+5V
CD A+5V
RESET SIGNAL
GENERATOR
IC601
D505
RECT
D918, 919, 923, 924
RECT
D972 – 975
LED DRIVE
Q794
T972
SUB POWER
TRANSFORMER
RECT
D541
D541
RECT
D543
D543
+VL
–VL
+VH
–VH
– 33V
REGULATOR
Q941
POWER ON/OFF
RELAY DRIVE
Q971
– VG
RECT
D977
D977
VF1
VF2
RY971
(E, Singapore)
(Mexican, Argentina)
AC IN
T910
MAIN POWER
TRANSFORMER
RESET
SWITCH
Q601
REMOTE CONTROL
RECEIVER
IC603
TO FLUORESCENT
INDICATOR TUBE
FL601
D +3.3V
EVER +4V
VOLTAGE
SELECTOR
S901
FLUORESCENT
INDICATOR TUBE DRIVER,
KEY CONTROL
IC601
7-4.
BLOCK DIAGRAM – DISPLAY/KEY CONTROL/POWER SUPPLY Section –
HCD-RG88
27
27
7-5.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
• Indication of transistor.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
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.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• 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.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER (FM/AM)
E
: TAPE PLAY (DECK A)
d
: TAPE PLAY (DECK B)
G
: REC
J
: CD PLAY (ANALOG)
c
: CD PLAY (DIGITAL OUT)
q
: MD/VIDEO (AUDIO) IN
j
: GAME IN (AUDIO)
k
: GAME IN (VIDEO)
N
: MIC INPUT
• Abbreviation
AR
: Argentina model
MX
: Mexican model
SP
: Singapore model
• Circuit Boards Location
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
MOTOR board
SENSOR (CD) board
DRIVER board
BD board
SW board
HEAD (A) board
HEAD (B) board
MAIN TRANS board
SENSOR board
SUB WOOFER board
TUNER PACK
MAIN board
POWER board
PANEL board
CD SWITCH board
CD OPEN board
PAD SWITCH board
GAME IN board
VOL board
SUB-TRANS board
HCD-RG88
28
28
7-6.
PRINTED WIRING BOARD – BD Board –
•
See page 27 for Circuit Boards Location.
qg
IC501
qd
(X-OUT)
qf
IC501
qa
(XC-OUT)
2.4 Vp-p
30.5
µ
s
1.9 Vp-p
62.5 ns
• Waveforms
– BD Board –
– BD Board –
1.1
±
0.4 Vp-p
1
IC103
qg
(RFAC) (CD Play Mode)
2.5 Vp-p
7.5
µ
s
2
IC101
wh
(MDP) (CD Play Mode)
0.3 Vp-p
3
IC101
el
(TE) (CD Play Mode)
0.4 Vp-p
4
IC101
ra
(TE) (CD Play Mode)
0.65
±
0.15 Vp-p
5
IC101
t;
(RFDC) (CD Play Mode)
5 Vp-p
59 ns
2.1 Vp-p
12.1
µ
s
qa
Q302, Q303 (Base) (Rec Mode)
10.8Vp-p
12.1
µ
s
qs
Q302, Q303 (Collector) (Rec Mode)
6
IC101
yj
(XTAO)
– MAIN Board –
0.4 Vp-p
12.1
µ
s
qd
Q302, Q303 (Emitter) (Rec Mode)
2.8 Vp-p
250 ns
wa
IC601
is
(X0)
– PANEL Board –
IC102
IC101
IC103
A
B
C
D
1
2
3
4
M102
(SLED)
2
8
7
1
M101
(SPINDLE)
OPTICAL PICK-UP
BLOCK
(A-MAX.3)
TP
(DVC)
TP
(RFAC)
TP
(FEI)
TP
(FEO)
TP
(TEO)
TP
(RFDC)
(Page 33)
D101
B-4
IC101
C-3
IC102
B-2
IC103
D-2
Q101
C-1
Q102
B-4
• Semiconductor
Location
Ref. No.
Location
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