sony HCD-GRX20, HCD-RXD3 Service Manual
HCD-GRX20/RXD3
SERVICE MANUAL
HCD-GRX20/RXD3 is the tuner, deck, CD and
amplifier section in MHC-GRX20/RXD3.
PHOTO : HCD-RXD3
Model Name Using Similar Mechanism NEW
CD
SECTION
T APE
DECK
SECTION
CD Mechanism Type CX3
Base Unit Type KSM-213ECM
Optical Pick-up Type KSS-213ECM/C2NP
Model Name Using Similar Mechanism NEW
T ape Transport Mechanism T ype CWL-44-FR
AEP Model
UK Model
HCD-RXD3
E Model
Australian Model
HCD-GRX20
Amplifier section
European model
DIN power output (Rated) 40 W + 40 W
(6 Ω at 1 kHz, DIN)
Continuous RMS power output (Reference)
50 W + 50 W
(6 Ω at 1 kHz, 10%
THD)
Music power output (Reference)
100 W + 100 W
(6 Ω at 1 kHz, 10%
THD)
Other models
The following measured at AC 110, 220 V 60 Hz;
DIN power output (Rated) 45 W + 45 W
(6 Ω at 1 kHz, DIN)
Continuous RMS power output (Reference)
50 W + 50 W
(6 Ω at 1 kHz, 10%
THD)
The following measured at AC 120, 240 V 60 Hz;
DIN power output (Rated) 50 W + 50 W
(6 Ω at 1 kHz, DIN)
Continuous RMS power output (Reference)
60 W + 60 W
(6 Ω at 1 kHz, 10%
THD)
Inputs
MD IN (phono jack): voltage 450 mV,
impedance 47 kΩ
SPECIFICATIONS
Outputs
MD OUT (phono jacks):
voltage 250 mV
impedance 1 kΩ
PHONES (stereo phone jack):
accepts headphones of 8
Ω or more.
SPEAKER: accepts impedance of 6
to 16 Ω
CD player section
System Compact disc and digital
audio system
Laser Semiconductor laser
(λ = 780 nm)
Emission duration:
continuous
Laser output Max. 44.6µW*
*This output is the value
measured at a distance of
200 mm from the
objective lens surface on
the Optical Pick-up
Block with 7 mm
aperture.
Frequency response 20Hz – 20kHz (±0.5 dB)
Wavelength 780 – 790 nm
MINI Hi-Fi COMPONENT SYSTEM
DIGITAL OUT (OPTICAL)
(Square optical connector jack, rear panel)
Wavelength 600 nm
Output Level –18 dBm
Tape deck section
Recording system 4-track 2-channel stereo
Frequency response 40 – 13,000 Hz (±3 dB),
using Sony TYPE I
cassette
Wow and flutter ±0.15% W. Peak(IEC)
0.1% W. RMS(NAB)
±0.2% W . Peak(DIN)
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tunr section
Tuning range 87.5 – 108.0 MHz
Antenna FM lead antenna
Antenna terminals 75 Ω unbalanced
Intermediate frequency 10.7 MHz
— Continued on next page —
MICROFILM
HCD-GRX20/RXD3
6-4. SCHEMATIC DIAGRAM MAIN (1/3) SECTION
0.047µ
mH
• Refer to page 19 for Waveforms. • Refer to page 33 for IC Block Diagrams. • Refer to page 19 for Note on Schematic Diagram.
*
0.047µ
*
R167 2.2k
C107
*
220
L109 22µH
68
47
C167
16V
*
0.047µ
mH
C186 0.001µ
R175
0.47µ
R136
*
E,AUS,SP,TW MODEL
25
25
C100
0.001
MARK :
*
GRX20
C107
C135 C167 R105 R106
0.01µ
0.022(T)
560p(T) 10p
NO MOUNT NO MOUNT 220 5.6k
RXD3
23
22
23
1k 100
2121
HCD-GRX20/RXD3
6-5. SCHEMATIC DIAGRAM MAIN (2/3) SECTION
0.018µ
• Refer to page 19 for Waveforms. • Refer to page 33 for IC Block Diagrams. • Refer to page 19 for Note on Schematic Diagram.
23
22µ
21
0.018
0.0012
10
0.0012
502
Q252
Q551
Q552
2222
HCD-GRX20/RXD3
6-6. SCHEMATIC DIAGRAM MAIN (3/3) SECTION
29
22
• Refer to page 33 for IC Block Diagrams. • Refer to page 19 for Note on Schematic Diagram.
27
C351
0.1
C363
R333
47k
R341
470
R336
680
0.1
D302
UZ6.2B
21
R358
470
47µ
C352
0.1
2323
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