Sony HCD-GRX80J / HCD-R880 / HCD-RXD8 / HCD-RXD8S / MHC-RXD8 / MHC-RXD8S Service Manual ▷ View online
HCD-GRX80/RXD8/RXD8S
– 25 –
– MAIN POWER/SUB POWER SECTION –
– 26 –
VG
VF
VF BUFF
Q14, 15
• R CH : Same as L ch
• SIGNAL PATH
: FM
• Abbreviation
E2
E3
EA3
SP
MY
HK
TW
AR
• SIGNAL PATH
: FM
• Abbreviation
E2
E3
EA3
SP
MY
HK
TW
AR
: Without SW tuner E model.
: Without SW tuner E model.
: Saudi Arabia model.
: Singapore model.
: Malaysia model.
: Hong Kong model.
: Taiwan model.
:Argentine model.
: Without SW tuner E model.
: Saudi Arabia model.
: Singapore model.
: Malaysia model.
: Hong Kong model.
: Taiwan model.
:Argentine model.
Rch
Rch
PROTECT
CONTROL
CONTROL
Q432 - 434
RY401
THERMAL
DET
Q831, 832
THP831
OVER LOAD
DET
Q801
Rch
POWER AMP
IC801
FRONT
F RELAY
DBFB
STK MUTE
GRX80:E2,E3,EA3,SP,AR,TW
RXD8,RXD8S
AC
IN
16
18
14
PHONES
J701
Rch
FRONT
FRONT
SPEAKER
SPEAKER
TM401
SURROUND
SPEAKER
SPEAKER
TM402
Rch
FAN MOTOR
DRIVER
Q401, 402
M
UNREG
–7V
–7V
M901
FAN
MOTOR
MOTOR
RELAY
DRIVE
Q435, 436, 431
MUTE
SWITCH
Q412, 411
VOLTAGE
SELECTOR
S951
VF
VF
T11
SUB TRANSFORMER
T951
POWER TRANSFORMER
MAIN
SECTION
D
09
(Page 24)
RXD8,RXD8S
VH+
SWITCH
Q437
MUTE
SWITCH
Q439
Lch
VH+ SUPP
Q803, 881
MUTE
SWITCH
Q804
VH+
RY-SW
STANDBY RELAY ON/OFF
FL SW ON/OFF
CD POWER
D+5V UNSW
POWER ON/OFF
PROTECTOR
AC4
AC4
RECT
D907-910
AC3
AC3
RECT
D901-904
IC901
+7V REG
CD MOTOR +7V
ST+10V
3
1
3
1
+10V REG
Q909
TC MOTOR +12V
A+7V
A–7V
3
1
–7V REG
Q951,952,914
+7V REG
Q901,902,913
+5V OUT
Q905
RECTIFIER
D924
RECTIFIER
D922
D+5V
+5V (LED)
(DISPLAY)
+5V (STBY)
(DISPLAY)
+5.6V (STBY)
RDS D+5V UN SW
AC1
AC1
RECT
D832
D832
RECT
D831
D831
AC2
AC2
–VL
+VL
+VH
–VH
IC904
REG
3
1
+5V OUT
Q911
RECTIFIER
D925
SWITCH
Q923, 903
SWITCH
Q904
SWITCH
Q908
+5V REG
Q907
SWITCH
Q912
CD A+5V (SW)
CD D+5V (SW)
RECTIFIER
D507
D509
JW51
RECT
D12-15
DISPLAY
(VIA POWER)
VF
COM MON
SUB TRANS. D+5.6V
3
1
RELAY DRIVE
Q11
SWITCH
Q16, 17
-26V REG
Q12, 13
RECT
D17-20
RY11
RY11
GRX80
AC
IN
Q11
IC903
+12V REG
IC902
REG
IC11
5.6V REG
HCD-GRX80/RXD8/RXD8S
– 27 –
– 28 –
– DISPLAY SECTION –
X601
12.5MHz
33 - 40, 42 - 44
46 - 67
FL601
FLUORESCENT INDICATOR TUBE
VF
72
70
XOUT
LINE IN
XIN
11
14
KEY 0
KEY 3
JOG A
JOG B
2
8
SIRCS
L SEL
1
DISPLAY CONTROL
IC601
I
2
C DATA
I
2
C CLK
78
79
73
RESET
LED
SWITCH
PANEL LED
REMOTE
CONTROL
RECEIVER
IC602
LED
CONTROL
Q603
DJ MUTE
DJ SIG
ROTARY
ENCODER
KEY
MATRIX
+5V (LED)
SEG1-SEG22
GR2-GR12
9
10
VOL A
VOL B
ROTARY
ENCODER
VOLUME
S602
S601
(JOG)
Q601,602
16
17
17
18
19
S LOW (F01)
BPF1 (F02)
BPF2
BPF3
BPF4
BPF3
BPF4
09
SPE SIG
IIC DATA
IIC CLK
RESET
X602
4.09MHz
E
MAIN
SECTION
(Page 24)
F
MAIN
SECTION
7
21
ALL B (L+R)
(Page 23)
4
17
16
14
13
12
S LOW
BPF1
BPF2
BPF3
BPF4
ALLB
SD
A.OUT
SI
ST
CH
XT
XT
BUSY
23
SOUND MIX
IC605
MUTE
SWITCH
Q851
SWITCH
Q851
14
15
8
16
20
2
3
F01
F02
F04
F05
F06
L+R
SPEANA BPF FILTER
IC603
REC IN
6
11
STANDBY LED
D804
ECO
TIMER LED
D635
LED SWITCH
Q605
+5V (LED)
TIMER SELECT
27 - 32, 45
GR1, GR13-GR18
IND BUFF
Q610-616
VF
6
74
PAD LA
CH for PAD
75
Busy for PAD
22 GRADATION R/WAKE UP
WAKE UP
20
LED LA
L/P DAT
4
5
3
L/P SCK
13
15
1
|
5
•
7
|
11
•
17
•
19
|
23
IC604
GRADATION L
15
LED SWITCH
Q607
LED SWITCH
Q608
D637 RIGHT
D638
LEFT
+5V (LED)
HCD-GRX80/RXD8/RXD8S
IC101
#ª
FE
1
2
3
4
5
WAVEFORMS
– BD (CD) SECTION –
– BD (CD) SECTION –
IC101
^§
XTAI
IC101
%¡
RF AC
IC101
$¡
TE
IC101
@§
MDP
• Indication of transistor
C
These are omitted
E
B
Q
C
These are omitted
E
B
– PANEL (2/3) SECTION –
1
2
IC501
!¡
XC-OUT
IC501
!£
X-OUT
– MAIN (3/4) SECTION –
IC601
&™
X OUT
1
2
IC605
2
XT
3.1Vp-p
16.9MHz
1.2Vp-p
(PLAY)
2.5V
APPROX 500mVp-p (PLAY)
2.5V
APPROX 200m Vp-p (PLAY)
7.5
µ
sec
2.4Vp-p
16MHz
5.5Vp-p
32.768kHz
5.2Vp-p
12.5MHz
3.4Vp-p
3.6Vp-p
4.09MHz
– 29 –
– 30 –
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.
•
¢
: internal component.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
•
p
: parts mounted on the conductor side.
•
®
: Through hole.
• b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
U
: B+ Line.
•
V
: 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.
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.
• Signal path.
F
: FM
f
: AM
g
: VIDEO/MD
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD
c
: digital out
• Abbreviation
G
: German model.
E2
: Without SW tuner E model.
E3
: With SW tuner E model.
EA3
: Saudi Arabia model.
EA4
: Israeli model.
AUS
: Australian model.
SP
: Singapore model.
TW
: Taiwan model.
AR
: Argentine model.
TH
: Thailand model.
MX
: Mexican model.
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
HCD-GRX80/RXD8/RXD8S
7-3. PRINTED WIRING BOARD – BD (CD) SECTION –
• See page 18 for Circuit Boards Location.
– 31 –
– 32 –
(Page 36)
(VC)
(RP)
(AGCCON)
(FE)
(FF1)
(TE)
19
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