Sony HCD-DX10 Service Manual
HCD-DX10/RG4SR/RG20/RG30T
US Model
HCD-RG4SR/RG20/RG30T
Canadian Model
HCD-RG20/RG30T
AEP Model
UK Model
HCD-RG20
E Model
Australian Model
HCD-DX10
SERVICE MANUAL
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-873-225-03
2003K16-1
© 2003.11
SPECIFICATIONS
Ver 1.2 2003. 11
Photo : HCD-DX10
• HCD-DX10/RG4SR/RG20/RG30T is the
tuner, deck, CD and amplifier section in
MHC-DX10/RG4SR/RG20/RG30T.
Model Name Using Similar Mechanism NEW
CD
CD Mechanism Type CDM58F-K6
Section
Optical Pick-up Name
KSM-213D
Tape deck Model Name Using Similar Mechanism NEW
Section T ape Transport Mechanism T ype CWL44FF29
Amplifier section
Canadian models:
HCD-RG30T
Continuous RMS power output (reference)
75 + 75 watts (6 ohms at 1
kHz, 10% THD)
Total harmonic distortion less than 0.07%
(6 ohms at 1 kHz, 50 W)
HCD-RG20
Continuous RMS power output (reference)
60 + 60 watts (6 ohms at 1
kHz, 10% THD)
Total harmonic distortion less than 0.07%
(6 ohms at 1 kHz, 30 W)
European model:
HCD-RG20
DIN power output (rated) 40 + 40 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
50 + 50 watts (6 ohms at 1
kHz, 10% THD)
Music power output (reference)
95 + 95 watts (6 ohms
at 1 kHz, 10% THD)
Other model:
HCD-DX10
The following measured at AC 120, 220, 240 V
50/60 Hz
DIN power output (rated) 40 + 40 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
50 + 50 watts (6 ohms at 1
kHz, 10% THD)
Inputs
GAME (AUDIO) IN (phono jack):
voltage 450 mV,
impedance 47 kilohms
Outputs
PHONES (stereo mini jack):
accepts headphones of
8 ohms or more
Front speaker: accepts impedance of 6 to
16 ohms
Surround speaker (HCD-RG4SR only):
accepts impedance of 6 to
16 ohms
CD player section
System Compact disc and digital
audio system
Laser Semiconductor laser
(λ=780 nm)
Emission duration:
continuous
Frequency response 2 Hz – 20 kHz (±0.5 dB)
Wavelength 780 – 790 nm
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
Tape deck section
Recording system 4-track 2-channel stereo
Frequency response 40 – 13,000 Hz (±3 dB),
using Sony TYPE I
cassette
AUDIO POWER SPECIFICATIONS:
(HCD-RG4SR USA model only)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
with 6 ohm loads both channels driven, from
120 – 10,000 Hz; rates 100 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
Total harmonic distortion less than 0.07%
(6 ohms at 1 kHz, 50 W)
(HCD-RG30T USA model only)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
with 6 ohm loads both channels driven, from
120 – 10,000 Hz; rates 75 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
Total harmonic distortion less than 0.07%
(6 ohms at 1 kHz, 30 W)
(HCD-RG20 USA model only)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
with 6 ohm loads both channels driven, from
120 – 10,000 Hz; rates 60 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
Total harmonic distortion less than 0.07%
(6 ohms at 1 kHz, 30 W)
MINI HIFI COMPONENT SYSTEM
— Continued on next page —
2
HCD-DX10/RG4SR/RG20/RG30T
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY .
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS P AR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
T o Exposed Metal
Parts on Set
0.15 µF
1.5 kΩ
AC
Voltmeter
(0.75 V)
Earth Ground
Fig. A. Using an A C v oltmeter to check A C leakage.
After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for A C leakag e. Check leakage as
described below.
LEAKAGE
The A C leakage from an y exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT -540A. Follo w the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC v oltmeter . The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples of
a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC range are suitable. (See
Fig. A)
SAFETY CHECK-OUT
General
Power requirements
North American models: 120 V AC, 60 Hz
European models: 230 V AC, 50/60 Hz
Australian models: 230 – 240 V AC,
50/60 Hz
Mexican models: 120 V AC, 50/60 Hz
Other models: 120 V, 220 V or
230 – 240 V AC,
50/60 Hz
Adjustable with voltage
selector
Power consumption
USA models:
HCD-RG4SR: 160 watts
HCD-RG30T: 115 watts
HCD-RG20: 95 watts
Canadian models:
HCD-RG30T: 115 watts
HCD-RG20: 95 watts
European model:
HCD-RG20: 85 watts
1.0 watts (at the Power
Saving Mode)
Other model:
HCD-DX10: 85 watts
Dimensions (w/h/d)
Approx. 280 × 325 × 421 mm
Mass
North American models:
HCD-RG4SR: Approx. 8.7 kg
HCD-RG30T: Approx. 8.2 kg
HCD-RG20: Approx. 7.8 kg
European model:
HCD-RG20: Approx. 8.1 kg
Other model:
HCD-DX10: Approx. 8.2 kg
Design and specifications are subject to change
without notice.
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 – 108.0 MHz
Antenna FM lead antenna
Antenna terminals 75 ohm unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range
Pan-American models: 530 – 1,710 kHz (with the
interval set at 10 kHz)
531 – 1,710 kHz (with the
interval set at 9 kHz)
European and Middle Eastern models:
531 – 1,602 kHz (with the
interval set at 9 kHz)
Other models: 531 – 1,602 kHz (with the
interval set at 9 kHz)
530 – 1,710 kHz (with the
interval set at 10 kHz)
Antenna AM loop antenna
Antenna terminals External antenna terminal
Intermediate frequency 450 kHz
HCD-DX10/RG4SR/RG20/RG30T
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.
This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
TABLE OF CONTENTS
1. GENERAL ·········································································· 4
2. DISASSEMBLY ································································ 6
3. TEST MODE ···································································· 11
4. ELECTRICAL ADJUSTMENTS ······························· 13
5. DIAGRAMS······································································ 15
5-1. Circuit Board Location ················································ 15
5-2. Block Diagrams ··························································· 16
Tuner/CD Section························································ 16
Main Section ······························································· 17
5-3. Printed Wiring Board CD Section ····························· 18
5-4. Schematic Diagram CD Section ································ 19
5-5. Printed Wiring Board Main Section ·························· 20
5-6. Schematic Diagram Main Section (1/4) ···················· 21
5-7. Schematic Diagram Main Section (2/4) ···················· 22
5-8. Schematic Diagram Main Section (3/4) ···················· 23
5-9. Schematic Diagram Main Section (4/4) ···················· 24
5-10.Printed Wiring Board Address Sensor,
Driver Motor Section···················································25
5-11.Printed Wiring Board Panel Section·························· 26
5-12.Schematic Diagram Panel Section ···························· 27
5-13.Printed Wiring Board Power Section ························ 28
5-14.Printed Wiring Board Trans Section·························· 29
5-15.Schematic Diagram Trans Section ···························· 30
5-16.IC Block Diagrams ······················································ 31
5-17.IC Pin Function Description········································ 34
6. EXPLODED VIEWS
6-1. Main Section ······························································· 36
6-2. Front Panel Section ····················································· 37
6-3. Main Board Section ····················································· 38
6-4. CD Mechanism Deck Section ····································· 39
7. ELECTRICAL PARTS LIST ······································· 40
MODEL IDENTIFICATION
— BACK PANEL —
PARTS No.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
• Abbreviation
CND : Canadian model
AUS : Australian model
AR : Argentina model
SP : Singapore model
TW : Taiwan model
MX : Mexican model
MY : Malaysia model
E2 : 120V AC Area in E model
E3 : 240V AC Area in E model
E51 : Chilean and Peruvian model
MODEL
RG20: US, CND models
RG20: AEP, UK models
DX10: E2, E3, E51, TW models
DX10: AUS, AR, MX models
RG30T
RG4SR
DX10: MY, SP models
PARTS No.
4-234-701-0s
4-234-701-1s
4-234-701-2s
4-234-701-3s
4-234-701-4s
4-234-701-5s
4-234-701-6s
3
4
HCD-DX10/RG4SR/RG20/RG30T
This section is extracted
from instruction manual.
SECTION 1
GENERAL
Main unit
12
3456 7
8
9
q;
qa
qs
qdqfqgqhqjqkqlw;wa
ws
wd
wf
wg
wh
wj
wk
AUDIO jacks wd (19)
CD wk (10 – 12, 15)
CD SYNC qh (15)
Deck A ws (14)
Deck B qs (14 – 16)
DISC 1 – 3 4 (10, 11)
DISC SKIP EX-CHANGE 3
(10, 11)
Disc tray 5 (10)
DISPLAY w; (12)
EFFECT ON/OFF qd
(17)
GAME wg (18 – 20)
BUTTON DESCRIPTIONS
?/1 (power) 1
Z OPEN/CLOSE 6
Z (deck B) qa
M (fast forward) qf
. (go back) qj
> (go forward) qj
X (pause) qj
H (play) qj
x (stop) qj
m (rewind) qk
Z (deck A) wa
GAME EQ ql (17, 18, 20)
GROOVE 8 (17)
MOVIE EQ 7 (17)
MUSIC EQ 2 (17)
PHONES jack q;
REC PAUSE/START qg (15)
TAPE A/B wh (14, 15)
TUNER/BAND wj (12, 13, 15)
VIDEO jack wf (19, 20)
VOLUME control 9
5
HCD-DX10/RG4SR/RG20/RG30T
Remote Control
12 3 4
5
6
7
8
9
0
qa
qs
qd
qf
qg
qh
qj
qk
ql
w;
wa
CD ql (10 – 12, 15)
CLEAR w; (11)
CLOCK/TIMER SELECT 2
(16, 19)
CLOCK/TIMER SET 3 (9, 16,
18)
DISPLAY 6 (12)
D.SKIP 7 (10)
ENTER qg (9, 11 – 13, 16, 18,
19)
EQ +/– qf (17)
GAME q; (18 – 20)
GROOVE qd (17)
ON/OFF qh (17)
PLAY MODE wa (10, 11)
PRESET +/– 5 (13)
REPEAT 8 (11)
SLEEP 1 (18)
STEREO/MONO 8 (13)
SURROUND qa (17)
TAPE A/B 9 (14, 15)
TUNER MEMORY qj (12, 13)
TUNER/BAND qk (12, 13)
TUNING +/– 5 (12, 13)
VOL +/– qs
BUTTON DESCRIPTIONS
?/1 (power) 4
M (fast forward) 5
. (go back) 5
> (go forward) 5
X (pause) 5
N (play) 5
m (rewind) 5
x (stop) 5
Setting the time
1
Press ?/1 to turn on the system.
2
Press CLOCK/TIMER SET on the
remote.
Proceed to step 5 when “CLOCK” appears
in the display.
3
Press . or > repeatedly to select
“SET CLOCK”.
4
Press ENTER on the remote.
5
Press . or > repeatedly to set the
hour.
6
Press ENTER on the remote.
The minute indication flashes.
7
Press . or > repeatedly to set the
minute.
8
Press ENTER on the remote.
Tip
If you made a mistake or want to change the time,
start over from step 2.
Note
The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.
6
HCD-DX10/RG4SR/RG20/RG30T
SECTION 2
DISASSEMBLY
2-1. CASE (TOP)
Note : Disassemble the unit in the order as shown below.
Note : Follow the disassembly procedure in the numerical order given.
CD board, Driver board, Motor board and Address sensor board
Case (Top)
CD door
Front panel section and CD mechanism
deck (CDM58F-K6) section
CD board
Panel board
Tape mechanism deck and Panel board
Sub trans board, Video out board and Trans board
Main board and Power board
Base unit
Set
4
qa
q;
q;
8
Case (Top)
Case (Side-L)
Case (Side-R)
5
Two screws (Case 3 TP2)
7
Two screws
(+BVTP 3
×
10)
3
Two
screws
(+BVTP 3
×
10)
1
Two screws (Case 3 TP2)
9
Four screws (+BVTP 3
×
6)
6
Screw (Case 3 TP2)
2
Screw (Case 3 TP2)
7
HCD-DX10/RG4SR/RG20/RG30T
2-2. CD DOOR
2-3. FRONT PANEL SECTION AND CD MECHANISM DECK (CDM58F-K6) SECTION
2
Pull-out the disc tray.
1
Turn the pulley to the direction of arrow.
pulley
CD door
Front panel side
CD mechanism deck (CDM58F-K6)
3
qd
qs
3
Screw
(+BVTP 3
×
10)
4
Screw (+BVTP 3
×
10)
qa
Three screws (+BVTP 3
× 10
)
9
Screw
(+BVTP 3
×
10)
1
Connector
(CN704)
6
Connector (CN201)
5
CD mechanism deck
(CDM58F-K6)
2
Flat type wire (19 core)
7
Connector (CN202)
8
Connector (CN203)
Front panel section
q;
Connector
(CN605)
8
HCD-DX10/RG4SR/RG20/RG30T
2-4. TAPE MECHANISM DECK AND PANEL BOARD
2-5. SUB TRANS BOARD, VIDEO OUT BOARD AND TRANS BOARD
qa
PANEL board
7
Volume knob
2
Six screws
(+BVTP 2.6
×
8)
8
Six screws
(+BVTP 2.6
×
8)
9
Five screws
(+BVTP 2.6
×
8)
q;
Eight screws
(+BVTP 2.6
×
8)
3
Tape mechanism deck
6
Belt (FR
)
4
Belt (BF)
5
Belt (AF)
1
Flat type wire (17 core)
qk
Four screws
(+BVTT 4
×
6)
ql
Power
transformer (T911)
TRANS board
Cover (duct)
qj
Connector (CN915)
qh
D
C fan (M961)
4
Connector (CN504)
1
Connector (CN901)
qs
VIDEO OUT board
8
SENSOR board
2
Connector (CN2)
3
Connector
(CN903)
qd
Five screws
(+BVTP 3
×
10)
qf
Back panel
qg
Two screws
(+BVTP 3
×
10)
5
Two screws
(+BVTP 3
×
10)
7
Screw (+BVTP 3
×
10)
9
Two screws
(+BVTP 3
×
10)
q;
SUB TRANS
board
6
qa
Screw
(+BVTP 3
×
10)
9
HCD-DX10/RG4SR/RG20/RG30T
2-6. MAIN BOARD AND POWER BOARD
2-7. BASE UNIT
6
Three screws (+BVTP 3
×
8)
8
Two screws (+BVTP 3
× 8)
9
Heat sink
5
Two screws (+BVTP 3
×
16)
1
Two screws (+BVTP 3
×
10)
4
MAIN board
7
POWER
board
MAIN board
2
3
4
Turn the pulley to the direction of arrow.
pulley
Base unit
qs
q;
Two
screws
(+PTPWH M2.6)
6
Screw
(+PTPWH M2.6)
1
Pulley (B), chucking
2
Two
screws (+PTPWH M2.6)
3
Lever (lifter)
qa
Screw (DIA. 12)
8
Two screws (+BVTP 2.6
×
8)
qd
Two insulators
7
Holder (BU) assy
qd
Two insulators
9
Two stoppers (BU)
5
Flat type wire (16 core)
Two spring (insulator), coil
s
Spring (insulator),
coil
Spring
(insulator),
coil
10
HCD-DX10/RG4SR/RG20/RG30T
2-8. CD BOARD, DRIVER BOARD, MOTOR BOARD AND ADDRESS SENSOR BOARD
9
Pull-out the Table.
4
Two screws (+BVTP 2.6
×
8)
q;
Screw (+PTPWH 2.6
×
8)
qa
Tray
1
Screw (+BVTP 2.6
×
8)
qs
Screw (+BVTP 2.6
×
8)
6
Flat type wire (8 core)
3
Flat type wire
(8 core)
8
MOTOR board
qd
ADDRESS SENSOR board
qf
Flat type wire (16 core)
qh
CD board
2
DRIVER board
5
Remove two solderings of turn motor (M721).
7
Connector
qg
Four
screws
(+BVTP 2.6
×
8)
11
HCD-DX10/RG4SR/RG20/RG30T
SECTION 3
TEST MODE
[Change-over of AM Tuner Step between 9 kHz and
10 kHz]
• A step of AM channels can be changed o ver between 9 kHz and
10 kHz.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND
button to select the BAND “AM”.
3. Press ?/1 button to turn the set OFF.
4. Press TUNER/BAND and ?/1 buttons simultaneously, and
the display of fluorescent indicator tube changes to “AM 9 k
STEP” or “AM 10 k STEP”, and thus the c hannel step is changed
over.
[Cold Reset]
• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. Press three buttons x , DISPLAY , and ?/1 simultaneously.
2. The fluorescent indicator tube displays “COLD RESET” and
the set is reset.
[Aging Mode]
This mode can be used for operation check of CD section and tape
deck section.
• If an error occurred:
The aging operation stops and is displayed status.
• If no error occurs:
The aging operation continues repeatedly.
1. Operating method of Aging Mode
Turn on the main power and select “CD” of the function.
1) Set three discs in tray. Select ALL DISCS, and REPEAT OFF.
2) Load the tapes recording use into both decks.
3) Press three buttons x , DISPLAY , and
DISC SKIP EX-CHANGE simultaneously.
4) Aging operations of CD and tape are started at the same time.
5) To exit the aging mode, perform [Cold Reset].
2. Aging mode in CD section
1) Operation during aging mode
• In the agining mode ,the program is excuted in the following
sequence.
(1) The disc tray opens and closes.
(2) The disc tray turns to select a disc 3.
(3) The pickup accesses to the first track, and plays 3 seconds.
(4) The pickup accesses to the last track, and plays 3 seconds.
(5) The disc tray opens and closes.
(6) The disc tray turns to select a disc 1.
(7) The same operation starts like step (3).
(8) After a disc 1 aging operation, a disc 2 is selected.
(9) When an aging operation of a disc 3 is completed, the display
“AGING
∗∗∗∗” value increases.
(10) If no error occurs, the aging operation continues repeatedly.
2) Error display
Step
1
2
3
4
5
6
7
8
9
10
11
12
Operation
Rewind the TAPE A
Rewind the TAPE B
Play the TAPE A (1 minute)
Stop the TAPE A (1 second)
Play the TAPE A (3 minutes)
Rewind(AMS) the TAPE A
F.F.(AMS) the TAPE A
Play the TAPE B (1 minute)
Stop the TAPE B (1 second)
Record the TAPE B (3 minutes)
Rewind(AMS) the TAPE B
F.F.(AMS) the TAPE B
Display
TAPE AAG-1
TAPE BAG-2
TAPE AAG-2
TAPE AAG-3
TAPE AAG-4
TAPE AAG-5
TAPE AAG-6
TAPE BAG-2
TAPE BAG-3
TAPE BAG-4
TAPE BAG-5
TAPE BAG-6
Disc error
Display Error
E00D01022 Focus error (No disc)
E00D02022 Sub Q error (Focus is good)
E00D02023 TOC reading error
E00D02014 Access error (Unable within regular time)
Mechanism error
Display Error
E00M__E_0 Error during opening tray
E00M__C_2 EX-CHANGE disc error
E00M__D_0 Error during closing tray
E00M__F_3 EX-OPEN error
E00M__D_5 EX-CLOSE error
E00M__C_2 Chuck-up error
E00M__C_3 Unchucking error
3. Aging mode in Tape Deck section
1) Operation during aging mode
• In the agining mode, the program is excuted in the following
sequence.
2) Error display
• If error occurred, the display remains like “TAPE BAG-2”.
4. Exiting from the aging mode
• Be sure to perform Cold Reset to exit from the aging mode.
HCD-DX10/RG4SR/RG20/RG30T
[FL T ube Test Mode]
• All fluorecent segments and LEDs are tested.
Procedure:
1. Press ?/1 button to turn the set ON.
2. To enter the test mode, press the three buttons x , DISPLAY
and GROOVE simultaneously.
3. Press DISPLAY and DISC SKIP/EX-CHANGE buttons
simultaneously.
4. All segments and LEDs (without STANDBY LED) are turned
on.
5. To exit from this mode, press ?/1 button to turn the set OFF.
[Version and Destination Display Mode]
• The version or destination is displayed.
Procedure:
1. Press ?/1 button to turn the set ON.
2. To enter the test mode, press the three buttons x , DISPLAY
and GROOVE simultaneously.
3. Press DISPLAY and DISC 1 buttons simultaneously.
4. The version is displayed.
5. Press DISPLAY and DISC 2 buttons simultaneously.
6. The destination is displayed.
7. To exit from this mode, press ?/1 button to turn the set OFF.
[Key Check Mode]
• Keyboard check.
Procedure:
1. Press ?/1 button to turn the set ON.
2. To enter the test mode, press the three buttons x , DISPLAY
and GROOVE simultaneously.
3. Press DISPLAY and DISC 3 b uttons simultaneously, and the
key check mode is activated.
4. In the key check mode, the fluorecent indicator displays “KEY
0 VOL 0”. Each time a button is pressed, “KEY 0” value
increases. However, once a button is pressed, it is no longer
taken into account.
“VOL 0” value increases like 1, 2, 3 ... if rotating VOLUME
knob clockwise, or it decreases like 0, 9, 8, ... if rotating counterclockwise.
5. To exit from this mode, press ?/1 button to turn the set OFF.
[VACS ON/OFF Mode]
• This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:
1. Press ?/1 button to turn the set ON.
2. To enter the test mode, press the three buttons x , DISPLAY
and GROOVE simultaneously.
3. Press CD SYNC button while pressing DISPLAY button.
The message “VACS OFF” or “VACS ON” appears.
4. To exit from this mode, press ?/1 button to turn the set OFF.
[Equalizer Test Mode]
• This mode is used to test the function of the equalizer.
Procedure:
1. Press ?/1 button to turn the set ON.
2. To enter the test mode, press the three buttons x , DISPLAY
and GROOVE simultaneously.
3. Press m button while pressing DISPLA Y button. The message
–
“BASS + 0” is displayed.
4. The value increases like + 2, + 4 ... if pressing > button
while DISPLAY button is still depressed, or it decreases like 2, - 4 ... if pressing . button.
5. Press M button while pressing DISPLA Y button. The message
+
“TRE + 0” is displayed.
6. The value increases like + 2, + 4 ... if pressing > button
while DISPLAY button is still depressed, or it decreases like
- 2, - 4 ... if pressing . button.
7. To exit from this mode, press ?/1 button to turn the set OFF.
[CD Ship Mode (No Memory Clear) ]
• This mode moves the pickup to the position durable to vibration. Use this mode when returning the set to the customer after
repair.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Press CD button and ?/1 button simultaneously.
3. The "STANDBY" display blinks instantaneously, and the CD
ship mode is set.
[CD Service Mode]
• This mode can run the CD sled motor freely . Use this mode, for
instance, when cleaning the pickup.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “CD”.
3. To enter the test mode, press three buttons x , DISPLAY , and
GROOVE simultaneously.
4. Press DISPLAY and OPEN/CLOSE b uttons simultaneously.
5. The CD service mode is selected.
M
6. With the CD in stop status, press
to outside track, or press m button to inside track.
7. To exit from this mode, perform as follows:
–
b utton to move the pickup
+
1) Move the pickup to the most inside track.
2) Press ?/1 button to turn the set OFF.
Note: • Always move the pickup to most inside track when exiting from
this mode. Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively , otherwise the gear can be
chipped.
12
13
HCD-DX10/RG4SR/RG20/RG30T
SECTION 4
ELECTRICAL ADJUSTMENTS
FM Tuned Level Adjustment
Procedure:
1. Supply a 98 MHz signal at 28 dB from the ANTENNA terminal.
2. Tune the set to 98 MHz.
3. Adjust RV101 to the point (moment) when the TUNED
indicator will change from going off to going on.
Adjustment Location: MAIN board
Null Adjustment
Procedure:
1. Supply a 98 MHz signal at 60 dB from the ANTENNA terminal.
2. Tune the set to 98 MHz.
3. Measure voltage between pin 21 and pin 23 of IC 101. Adjust
T101 until the voltage becomes 0 V.
Adjustment Location: MAIN board
[MAIN BOARD] Component side
FM RF Signal generator
75
Ω
coaxial
Carrier frequency : 98 MHz
Modulation : AUDIO 1 kHz, 75 kHz
deviation (100%)
Output level : 30 dB (at 75
Ω
open)
FM ANTENNA terminal
(JK101)
set
FM RF Signal generator
75
Ω
coaxial
Carrier frequency : 98 MHz
Modulation : AUDIO 1 kHz, 75 kHz
deviation (100%)
Output level : 60 dB (at 75
Ω
open)
FM ANTENNA terminal
(JK101)
set
T101
RV101
IFT101 : AM IF
T101:NULL
RV101:FM TUNED LEVEL
AM RF Signal generator
30% amplitude
modulation by
400Hz signal
output level : as low as possible
AM ANTENNA terminal
(JK101)
set
AM IF Adjustment
TUNER SECTION
Procedure:
1. Set the frequency of the AM RF signal generator to 1000 kHz
(at 10 kHz step) or 999 kHz (at 9 kHz step).
2. Tune the set to AM 1000 kHz (at 10 kHz step) or 999 kHz (at 9
kHz step).
3. Adjust IFT101 so that the reading on level meter becomes in
maximum.
headphones jack (JK601)
level mete
r
set
16 Ω
14
HCD-DX10/RG4SR/RG20/RG30T
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
level is correct or not.
IC751 pin q;
GND
CD board
oscilloscope
Note : Clear RF signal waveform means that the sha pe “ ◊ ” can be clearly
distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200mV
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 10MΩ 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.
1515
HCD-DX10/RG4SR/RG20/RG30T
SECTION 5
DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
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.
Note:
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
• 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 MΩ).
Voltage variations may be noted due to normal production tolerances.
no mark : FM
< >: CD
[ ] : TAPE
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production 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.)
C
B
These are omitted.
E
Q
B
These are omitted.
CE
Q
• Abbreviation
CND : Canadian model
AUS : Australian model
AR : Argentina model
SP : Singapore model
TW : Taiwan model
MX : Mexican model
MY : Malaysia model
E2 : 120V AC Area in E model
E3 : 240V AC Area in E model
E51 : Chilean and Peruvian model
5-1. CIRCUIT BOARD LOCATION
• WAVEFORMS
– MAIN BOARD – – PANEL BOARD –– CD BOARD –
MOTOR board
ADDRESS SENSOR board
SENSOR board
DRIVER board
TRANS board
VIDEO OUT board
SPDL board
SUB TRANS board
MAIN board
POWER board
PANEL board
CD board
1
IC751 rf (XOUT)
4.9Vp-p
59 ns
2
IC102 wf (XOUT)
3.2Vp-p
222 µs
4
IC601 qj (XTAL 6.0MHz)
4.8Vp-p
167 ns
3
L251
14.1Vp-p
16.6 µs
(60.1 kHz)
1616
HCD-DX10/RG4SR/RG20/RG30T
5-2. BLOCK DIAGRAMS
TUNER/CD SECTION
: FM
: CD
• Signal Path
• R-CH is omitted due to same as L-CH
FM 75Ω
G
AM
JK101
ANT IN17
IF OUT
8
OSC OUT
5
VT
FND1
FND1
EXCEPT RG20:AEP,UK
ANT IN
1
7IF OUT
8OSC OUT
5VT
RG20:AEP,UK
+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
2VCO STOP
8IF REQ
6DO
4DI
5
CL
3
CE
XIN
1
XOUT
24
CX101
4.5MHz
RF IF
AMP
Q101
CF101 CF102
DI
DO
CLK
CE
1
13
3
4
55
122
14
1511
67
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
18AM 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
70CD TRAY OPEN SW
71CD TRAY CLOSE SW
73CD 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
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
41RF 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
50CLK
51CL
53CE
34TGL
54
DRF
39
CV-
40
CV+
30
SL-
Q775
31
SL+
35TOFF
44SLI
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
45XI
44
XO
X701
16.9344M
37
L CH
40R 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
58RESET
D732
35L 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 1.2 2003.11
1717
HCD-DX10/RG4SR/RG20/RG30T
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
Q803,804
POWER
AMP
IC501
1126
MUTE
CONT
Q503,504
MUTE
Q306
MUTE
CONT
Q305
OVER LOAD
DETECTOR
Q501
RG30T/RG4SR
D502
PROTECT
DETECTOR
Q308,309
PROTECT
CONT
Q311
PROTECT
SWITCH
Q312
RELAY
DRIVE
Q314,315
RL1
JK601
PHONES
R CH
R CH
FAN
(M961)
FAN
DRIVE
Q850,851
L
R
JK310
SPEAKER
R CHLR
JK311
SURROUND SPK
OUTPUT
28
PHOTO SENSOR B
27
PHOTO SENSOR A
66
TAPE MODE SW B65TAPE MODE SW A
26
TAPE B HALF25TAPE 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
RELAY
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
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
OVER HEAT
DETECTOR
Q582,583
TH501
FAN ON
SWITCH
Q584
MOTOR L
SFR601
Q651
75
SPK RELY ON
S901
220/230
240
120
JW5
JW6
JW7
JW3
JW2
JW4
JW1
VOLTAGE
SELECTOR
DX10:MY,SP,
TW,E2,
E3,E51
DX10:MX,MY,SP,
TW,E2,E3,E51
DX10:AR,AUS/RG20
/RG30T/RG4SR
DX10:MX/RG20:US,CND
/RG30T/RG4SR
RG20:AEP,UK
DX10:AR,AUS
1
CD ON/OFF
FAN +B
D543 D542
D809 -810
RESET
RESET
SWITCH
POWER DOWN IN
11
D602
REMOTE IN
29
RM601
D311
D852
RG30T,RG4SR
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+
LGAME
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
31
VR ENCODER A13VR ENCODER B
14
LED
DRIVER
POWER SW
84
LED601
(POWER)
39 33
47 50 52 6340 45
..
1G 10G
P1 P22
RG4SR
DX10:MX
REMOTE
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