Sony HCD RXD9, HCD-GRX9900 Service Manual
HCD-GRX9900/RXD9
SERVICE MANUAL
HCD-GRX9900/RDX9 are the Amplifier,
CD player, Tape Deck and Tuner section
in MHC-GRX9900/RXD9.
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation.
Photo: HCD-RXD9 (US model)
CD
Section
Tape deck
Section
US Model
AEP Model
UK Model
HCD-RXD9
E Model
HCD-GRX9900
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM38LH-5BD32L
Base Unit Name BU-5BD32L
Optical Pick-up Name KSS-213D/Q-NP
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type TCM-230AWR2
Amplifier section
US model:
AEP and UK models:
DIN power output (rated) 120 + 120 watts
(8 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
150 + 150 watts
(8 ohms at 1 kHz, 10% THD)
Music power output (reference)
275 + 275 watts
(8 ohms at 1 kHz, 10% THD)
SPECIFICATIONS
E models:
The following measured at AC 120, 220, 240 V 50/60 Hz
DIN power output (rated) 200 + 200 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
250 + 250 watts
(6 ohms at 1 kHz, 10% THD)
– Continued on next page –
MICROFILM
MINI Hi-Fi COMPONENT SYSTEM
7-7. SCHEMATIC DIAGRAM – BD Board – • See page 65 for Waveforms. • See page 66 for IC Block Diagrams.
HCD-GRX9900/RXD9
(Page 45)
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD STOP
( ) : CD PLAY
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
– 31 –
– 32 –
7-9. SCHEMATIC DIAGRAM – CD MOTOR Section – • See page 67 for IC Block Diagrams.
DISC TRAY
ADDRESS DETECT
DISC TRAY SLIDE
CLOSE
OPEN
HCD-GRX9900/RXD9
DISC IN DETECT
SENSOR
DISC TRAY
SENSOR
MTZJ-T-72
(DISC TRAY SLIDE)
DISC
TRAY
TURN
DISC TRAY TURN
MOTOR DRIVER
B
(Page 45)
MTZJ-T-72
C
(Page 45)
– 35 –
LEVEL SHIFT
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : CD STOP
– 36 –
7-11. SCHEMATIC DIAGRAM – AUDIO Board – • See page 68 for IC Block Diagram.
HCD-GRX9900/RXD9
(PLAYBACK)
PB EQ AMP
(DECK A)
PB EQ AMP
(DECK B)
PB LEVEL (L)
(DECK A)
PB LEVEL (R)
(DECK A)
PB LEVEL (L)
(DECK B)
PB LEVEL (R)
(DECK B)
D
(Page 49)
REC BIAS (R)
(DECK B)
BIAS OSC
REC BIAS (L)
(DECK B)
SWITCHING
REC BIAS
-6.8
– 39 –
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : TAPE PLAY
( ) : RECORD
– 40 –
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
HCD-GRX9900/RXD9
7-12. PRINTED WIRING BOARD – LEAF SW Board – • See page 28 for Circuit Boards Location.
DECK A
PLUNGER
4
3
1
2
(DECK A PLAY)
05
(DECK A HALF)
(DECK A 120/70)
(
)
(DECK A REC)
7-13. SCHEMATIC DIAGRAM – LEAF SW Board –
(CAPSTAN)
DECK B
PLUNGER
DECK A
PLUNGER
(DECK A 120/70)
(DECK A HALF)
(DECK A REC)
(DECK B HALF)
ROTATION DETECT SENSOR
(DECK A)
CONTROL SWITCH
ROTATION DETECT
SENSOR (DECK B)
E
(Page 43)
(DECK B PLAY)
4
1
(DECK B HALF)
DECK B
PLUNGER
3
2
(DECK B 120/70)
(DECK B REC)
21
21
• Semiconductor Location
Ref. No. LocationRef. No. Location
D141 E-10
D191 E-12
D331 E-1
D333 F-1
D334 E-1
D335 F-1
D401 G-11
D403 F-12
D405 H-6
D406 J-4
D407 I-2
D411 G-3
D501 D-7
D502 E-6
D503 D-6
D504 D-7
D505 D-7
D506 D-7
D509 F-2
D607 E-5
D644 C-8
D801 J-11
D802 G-9
D803 G-11
D831 I-6
D832 J-7
D851 J-10
D852 G-9
D881 H-9
D901 J-4
D902 J-4
D903 J-4
D904 I-4
D905 I-1
D906 H-1
D907 J-5
D908 I-5
D909 J-5
D910 J-5
D915 I-4
D921 H-4
D922 G-4
D923 G-4
D924 F-2
D925 G-4
Q113 E-9
Q161 C-9
Q162 C-9
Q163 E-9
Q191 E-12
Q192 E-10
Q201 D-9
Q251 C-9
Q331 C-1
Q332 C-2
Q333 C-2
Q334 C-2
Q335 D-1
Q336 F-1
Q337 F-1
Q338 F-1
Q339 F-1
Q340 E-1
Q341 E-1
Q342 F-1
Q343 E-1
Q401 F-12
Q402 E-12
Q411 G-2
Q412 G-3
Q431 G-12
Q432 G-11
Q433 F-11
Q434 F-11
Q435 F-11
Q436 F-11
Q437 G-12
Q439 F-12
Q471 F-2
Q501 D-7
Q508 D-7
Q509 E-7
Q801 H-10
Q803 G-10
Q804 G-9
Q831 G-10
Q832 G-10
Q851 J-10
Q881 I-9
Q901 H-2
Q902 I-1
Q903 H-1
Q904 G-4
Q905 G-4
Q907 G-5
Q908 G-4
Q909 I-4
Q913 H-1
Q914 G-2
Q923 H-1
Q951 G-2
Q952 H-1
E
(Page 49)
IC101 C-10
IC301 B-3
IC381 A-12
IC501 D-5
IC502 D-7
IC801 H-10
IC901 G-6
IC902 G-4
IC903 H-4
Q111 D-10
Q112 D-10
(DECK B REC)
(DECK B 120/70)
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : TAPE PLAY
( ) : RECORD
: Impossible to measure
∗
– 41 –
(DECK A PLAY)
(DECK B PLAY)
– 42 –
HCD-GRX9900/RXD9
7-15. SCHEMATIC DIAGRAM – MAIN Board (1/4) –
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
( ) : CD PLAY
(Page 31)
(Page 36)
(Page
47)
(Page
51)
(Page 36)
– 45 –
(Page 50)
– 46 –
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