Sony HCD-RG190 User manual

SERVICE MANUAL
COMPACT DISC DECK RECEIVER
Ver. 1.2 2006.06
SPECIFICATIONS
9-887-145-03
2006F05-1
© 2006.06
Sony Corporation
Home Audio Division
Published by SonyTechno Create Corporation
Photo: HCD-RG290
•HCD-RG190 is the amplifier, CD player, tape
deck and tuner section in MHC-RG190.
•HCD-RG290 is the amplifier, CD player, tape
deck and tuner section in MHC-RG290.
– Continued on next page –
Model Name Using Similar Mechanism HCD-RG490/RG590
CD Mechanism Type CDM74KF-K6BD83S (Except Mexican model)/
CD CDM74KF-F1BD84 (Mexican model)
Section Base Unit Name BU-K6BD83S-WOD (Except Mexican model)/
BU-F1BD84 (Mexican model)
Optical Pick-up Block Name KSM-213DHAP (Except Mexican model)/
KSM-215DCP (Mexican model)
TAPE Model Name Using Similar Mechanism HCD-RG490/RG590
Section Tape Transport Mechanism Type CWN42FF609
HCD-RG190/RG290
Amplifier Section
HCD-RG290
The following are measured at AC 120, 127,
220, 240 V 50/60 Hz
DIN power output (rated): 95 + 95 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output
(reference): 125 + 125 watts (6 ohms at 1
kHz, 10% THD)
HCD-RG190
The following are measured at AC 120, 127,
220, 240 V 50/60 Hz
DIN power output (rated): 50 + 50 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output
(reference): 65 + 65 watts (6 ohms at 1
kHz, 10% THD)
Inputs:
AUDIO IN (stereo mini jack): voltage 250
mV, impedance 47 kilohms
MIC (phone jack) (Latin American model
only): sensitivity 1 mV, impedance 10
kilohms
Outputs:
PHONES (stereo mini jack): accepts
headphones of 8 ohms or more
VIDEO OUT (phono jack) (Mexican
model only): max. output level 1Vpp,
unbalanced, Sync negative, load
impedance 75 ohms
SPEAKER: accepts impedance of 6 to 16
ohms
CD player section
System: Compact disc and digital audio system
Laser Diode Properties
Emission duration: continuous Laser
Output*: Less than 44.6µW
*This output is the value measurement at a
distance of 200mm from the objective lens
surface on the Optical Pick-up Block with
7mm aperture.
Frequency response: 20 Hz – 20 kHz
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: 50 – 13,000 Hz (±3 dB),
using Sony TYPE I cassettes
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section:
Tuning range
87.5 – 108.0 MHz (50 kHz step)
Antenna: FM lead antenna
Antenna terminals: 75 ohms unbalanced
Intermediate frequency: 10.7 MHz
AM tuner section:
Tuning range
Pan-American model:
530 – 1,710 kHz (with 10 kHz tuning interval)
531 – 1,710 kHz (with 9 kHz tuning interval)
AEP Model
E Model
Australian Model
HCD-RG190/RG290
UK Model
Mexican Model
HCD-RG290

2
HCD-RG190/RG290
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.
Flexible Circuit Board Repairing
•Keep the temperature of the 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.
CAUTION
Use of controls or adjustments or performance of procedures
otherthan thosespecifiedherein mayresult in hazardous radiation
exposure.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0ON 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.
is classified
as a CLASS 1
LASER product.
This marking is
located on the rear
exterior.
This appliance
European, Russian and Saudi Arabian models:
531 – 1,602 kHz (with 9 kHz tuning interval)
Other models:
530 – 1,710 kHz (with 10 kHz tuning interval)
531 – 1,602 kHz (with 9 kHz tuning interval)
Antenna: AM loop antenna, external antenna
terminal
Intermediate frequency: 450 kHz
General
Power requirements
European and Russian models: AC 230V,
50/60 Hz
Australian model: AC 230 – 240V,
50/60 Hz
Mexican model:AC 127V, 60 Hz
Argentine model:AC 220V, 50/60 Hz
Saudi Arabian model: AC 120 – 127, 220
or 230 – 240 V, 50/60 Hz, Adjustable with
voltage selector
Other models: AC 120, 220 or 230 – 240V,
50/60 Hz, Adjustable with voltage selector
Power consumption
European and Russian models:
HCD-RG290: 185 watts
HCD-RG190: 100 watts
Other models:
HCD-RG290: 200 watts
HCD-RG190: 110 watts
Dimensions (w/h/d) (excl. speakers): Approx.
280 ×328 ×412.3 mm
Mass (excl. speakers)
HCD-RG290: Approx. 9.3 kg
HCD-RG190: Approx. 7.5 kg
Design and specifications are subject to change
without notice.
Ver. 1.1

3
HCD-RG190/RG290
TABLE OF CONTENTS
1. SERVICING NOTES ............................................... 4
2. GENERAL ................................................................... 5
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 6
3-2. Case (Side-L), Case (Side-R) .......................................... 7
3-3. Case (Top) ....................................................................... 7
3-4. LID (CD) ......................................................................... 8
3-5 CD Mechanism Deck
(CDM74KF-K6BD83S: Except Mexican model)
(CDM74KF-F1BD84: Mexican model) .......................... 8
3-6. Front Panel Block ............................................................ 9
3-7. Mecha Deck (CWN42FF609) ......................................... 9
3-8. Back Panel Section .......................................................... 10
3-9. MAIN Board.................................................................... 10
3-10. BD Board (Mexican model),
CD Board (Except Mexican model) ................................ 11
3-11. DRIVE Board, SW Board ............................................... 11
3-12. Optical Pick-up Block ..................................................... 12
3-13. SENSOR Board ............................................................... 12
3-14. MOTOR (TB) Board ....................................................... 13
3-15. MOTOR (LD) Board ....................................................... 13
4. TEST MODE.............................................................. 14
5. MECHANICAL ADJUSTMENTS ....................... 17
6. ELECTRICAL ADJUSTMENTS ......................... 18
7. DIAGRAMS
7-1. Block Diagram – CD SERVO Section – ......................... 21
7-2. Block Diagram – MAIN Section – .................................. 22
7-3. Block Diagram – AMP/VIDEO Section – ...................... 23
7-4. Block Diagram
– PANEL/POWER SUPPLY Section – ........................... 24
7-5. Printed Wiring Board – CD Board
(Except RG290: MX model) – ........................................ 26
7-6. Schematic Diagram – CD Board
(Except RG290: MX model) – ........................................ 27
7-7. Printed Wiring Board – BD Board
(RG290: MX model) – .................................................... 28
7-8. Schematic Diagram – BD Board
(RG290: MX model) – .................................................... 29
7-9. Printed Wiring Boards – CHANGER Section –.............. 30
7-10. Schematic Diagram – CHANGER Section – .................. 31
7-11. Printed Wiring Board – DECK Board – .......................... 32
7-12. Schematic Diagram – DECK Board –............................. 33
7-13. Printed Wiring Board – MAIN Board
(Except RG290: MX model) – ........................................ 34
7-14. Schematic Diagram – MAIN Board (1/3)
(Except RG290: MX model) – ........................................ 35
7-15. Schematic Diagram – MAIN Board (2/3)
(Except RG290: MX model) – ........................................ 36
7-16. Schematic Diagram – MAIN Board (3/3)
(Except RG290: MX model) – ........................................ 37
7-17. Printed Wiring Board – MAIN Board
(RG290: MX model) – .................................................... 38
7-18. Schematic Diagram – MAIN Board (1/3)
(RG290: MX model) – .................................................... 39
7-19. Schematic Diagram – MAIN Board (2/3)
(RG290: MX model) – .................................................... 40
7-20. Schematic Diagram – MAIN Board (3/3)
(RG290: MX model) – .................................................... 41
7-21. Printed Wiring Board – MIC.AUX. HP Board – ............ 42
7-22. Schematic Diagram – MIC. AUX. HP Board –............... 43
7-23. Printed Wiring Board – POWER Board (RG190) – ........ 44
7-24. Schematic Diagram – POWER Board (RG190) – .......... 45
7-25. Printed Wiring Board – POWER Board (RG290) – ........ 46
7-26. Schematic Diagram – POWER Board (RG290) – .......... 47
7-27. Printed Wiring Boards – CD-G Section
(RG290: MX model) – .................................................... 48
7-28. Schematic Diagram – CD-G Section
(RG290: MX model) – .................................................... 49
7-29. Printed Wiring Board – PANEL Board – ........................ 50
7-30. Printed Wiring Boards – KEY Section –......................... 51
7-31. Schematic Diagram – PANEL/KEY Section – ............... 52
7-32. Printed Wiring Board
– TRANSFORMER Board (RG190) – ........................... 54
7-33. Schematic Diagram
– TRANSFORMER Board (RG190) – ........................... 55
7-34. Printed Wiring Board
– TRANSFORMER Board (RG290) – ........................... 56
7-35. Schematic Diagram
– TRANSFORMER Board (RG290) – ........................... 57
8. EXPLODED VIEWS
8-1. Case Section .................................................................... 74
8-2. PANEL Board Section..................................................... 75
8-3. Lid (Top) Section............................................................. 76
8-4. Front Panel Section ......................................................... 77
8-5. MAIN Board Section....................................................... 78
8-6. POWER Board, SUB WOOFER Board Section ............. 79
8-7. Chassis Section................................................................ 80
8-8. CD Mechanism Deck Section-1
(CDM74KF-K6BD83S) (Except Mexican model)/
(CDM74KF-F1BD84) (Mexican model) ........................ 81
8-9. CD Mechanism Deck Section-2
(CDM74KF-K6BD83S) (Except Mexican model)/
(CDM74KF-F1BD84) (Mexican model) ........................ 82
9. ELECTRICAL PARTS LIST................................ 83
•Abbreviation
MX: Mexican model

4
HCD-RG190/RG290 SECTION 1
SERVICING NOTES
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 pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
•Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
RELEASING THE ANTITHEFT LOCK
The disc table lock function for the antitheft of an demonstration
disc in the store is equipped.
Releasing Procedure :
1. Press the I/1button to turn the power on.
2. While pressing the sbutton, press the Abutton until
“UNLOCKED” displayed on the fluorescent indicator tube
(around 5 seconds).
Note: When “LOCKED” is displayed, the antitheft lock is not released by
turning power on/off with the I/1button.
NOTES ON REPLACEMENT OF IC901 ON THE MAIN
BOARD
IC901on theMAIN boardcannotexchangewith single.WhenIC901
is damaged, exchange the entire mounted board.
MODEL IDENTIFICATION
– Back Panel –
Label indication Model
2-664-545-0[] CED RG290: AEP, UK
2-664-546-0[] E3 RG290: E3
2-664-547-0[] SP2 RG290: SP
2-664-548-0[] AU RG290: AUS
2-664-550-0[] E51 RG290: E51
2-664-551-0[] AR RG290: AR
2-664-552-0[] MX4 RG290: MX
2-664-553-0[] CED RG190: AEP
2-664-554-0[] E3 RG190: E3
2-664-555-0[] SP2 RG190: SP
2-664-556-0[] AU RG190: AUS
2-664-557-0[] EA3 RG190: EA
2-664-558-0[] E51 RG190: E51
2-664-559-0[] AR RG190: AR
2-665-213-0[] E2 RG190: E2
2-666-351-0[] E2 RG290: E2
2-674-578-0[] RU RG290: RU
2-674-579-0[] RU RG190: RU
•Abbreviation
AR : Argentina model
AUS:Australian model
E2 : 120V AC area in E model
E3 : 240V AC area in E model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
MX : Mexican model
Model number label
Ver. 1.1

5
HCD-RG190/RG290
SECTION 2
GENERAL This section is extracted from
instruction manual.
This manul mainly explains operations using
the remote, but the same operations can also be
performed using the buttons on the unit having
the same or similar names.
1?/1 (power) button
Press to turn on the system.
2
STANDBY indicator
Lights up when the system is turned off.
3CD button
Press to select the CD function.
TUNER/BAND button
Press to select the TUNER function. Press
to select FM or AM reception mode.
Unit: TAPE A/B button
Remote: TAPE button
Press to select the TAPE function. Press to
select TAPE A or TAPE B.
AUDIO IN button
Press to select the AUDIO IN function.
FUNCTION button
Press to select the function.
Guide to parts and
controls
Unit
Remote
6
Mexican model:
Unit: KARAOKE button
Press to activate the karaoke mode.
Remote: DISPLAY button
Press to change the information on the
display.
Other models:
DISPLAY button
Press to change the information on the
display.
7ILLUMINATION button
Press to change the illumination pattern
around the VOLUME control
qf
.
8
Buttons for synchro recording or
manual recording
REC PAUSE/START button,
CD SYNC button
Press to record on a tape.
9
PUSH Z
Press to insert or eject a tape.
q;
Playback buttons
Unit: NX (play/pause) button
Remote: N(play) button,
X(pause) button
Press to start or pause playback.
x(stop) button
Press to stop playback.
./>(go back/go forward)
Press to select a track or file.
Unit:TUNING +/– button
Remote: +/– (tuning) button
Press to tune in the desired station.
Press to select a folder on an MP3 disc.
m/M(rewind/fast forward)
button
Press to find a point in a track or file.
MULTI JOG dial (./>(go
back/go forward), +/– (tuning))
Turn to select a track or file. Turn to
tune in the desired station. (Same as the
./>, +/– buttons on the remote)
qa
PHONES jack
Connect the headphones.
qs
AUDIO IN jack
Connect to an audio component.
qd
Latin American model only:
MIC jack
Connect the microphone. Mexican model
comes with 2 microphone jacks.
MIC LEVEL
Turn to adjust the microphone volume.
Mexican model only:
ECHO LEVEL
Turn to adjust the echo level.
qf
Unit:VOLUME control
Turn to adjust the volume.
Remote:VOLUME +/– button
Press to adjust the volume.
qg
EQ BAND button
Press to select the frequency band.
qh
ENTER button
Press to enter the settings.
qj
Sound buttons
Unit: GROOVE button,
SURROUND button
Remote: EQ button
Press to select the sound.
qk
A(open/close) button
Press to insert and eject a disc.
ql
DISC 1 – 3 button
Press to select a disc. Press to switch to the
CD function from other function.
Unit: DISC SKIP/EX-CHANGE
button
Press to select a disc. Press to exchange a
disc while playing.
Remote: DISC SKIP button
Press to select a disc.
w;
Remote sensor
wa
CLOCK/TIMER SELECT button
CLOCK/TIMER SET button
Press to set the clock and the timers.
ws
REPEAT/FM MODE button
Press to listen to a disc, a single track
or file repeatedly. Press to select the FM
reception mode (monaural or stereo).
wd
Battery compartment lid
wf
CLEAR button
Press to delete a pre-programmed track.
wg
TUNER MEMORY button
Press to preset the radio station.
wh
PLAY MODE/TUNING MODE
button
Press to select the play mode of a CD,
MP3 or tape.
Press to select the tuning mode.
wj
SLEEP button
Press to set the Sleep Timer.
+/– (select folder) button

HCD-RG190/RG290
6
•This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
SET
3-2. CASE (SIDE-L), CASE (SIDE-R)
(Page 7)
3-3. CASE (TOP)
(Page 7)
3-4. LID (CD)
(Page 8)
3-9. MAIN BOARD
(Page 10)
3-14. MOTOR (TB) BOARD
(Page 13)
3-15. MOTOR (LD) BOARD
(Page 13)
3-11. DRIVER BOARD,
SW BOARD
(Page 11)
3-6. FRONT PANEL BLOCK
(Page 9)
3-7. MECHANICAL DECK
(CWM42FF609)
(Page 9)
3-5. CD MECHANISM DECK
(CDM74KF-K6BD83S: Except Mexican model)
(CDM74KF-F1BD84: Mexican model)
(Page 8)
3-10. BD BOARD
(Mexican model),
CD BOARD
(Except Mexican model)
(Page 11)
3-12. OPTICAL PICK-UP BLOCK
(KSM-213DCP: Except Mexican model)
(KSM-215DCP: Mexican model)
(Page 12)
3-13. SENSOR BOARD
(Page 12)
3-8. BACK PANEL SECTION
(Page 10)

HCD-RG190/RG290
7
Note: Follow the disassembly procedure in the numerical order given.
3-2. CASE (SIDE-L), CASE (SIDE-R)
3-3. CASE (TOP)
4 three screws
(case 3 TP2)
1 three screws
(case 3 TP2)
5 two screw
s
(B3)
2 two screws
(B3)
3 case (side-L)
6 case (side-R)
1 two screws
(B3)
3
2 Open the case (top).
2 Open the case (top).
2 Open the case (top).
5 case (top)
4 four claws

HCD-RG190/RG290
8
3-4. LID (CD)
3-5. CD MECHANISM DECK
(CDM74KF-K6BD83S: EXCEPT MEXICAN MODEL)
(CDM74KF-F1BD84: MEXICAN MODEL)
1 Turn the gear (loading A)
to the direction of the arrow.
3 four claws
2
4
lid (CD
)
5 three screws
(BVTP3
× 8)
5 screw (BVTP3 × 8)
5 screw
(BVTP3
× 8)
6 CD mechanism deck
(CDM74KF-K6BD83S: except Mexican model
)
(CDM74KF-F1BD84: Mexican model)
1 flexible flat (13 core) cable
(CN701)
4 connector
(Mexican model)
(CN1004)
2 flexible flat (23 core) cable
(except Mexican model)
(CN301)
flexible flat (31 core) cable
(Mexican model)
(CN302)
3 flexible flat (13 core) cable
(Mexican model)
(CN331)

HCD-RG190/RG290
9
3-6. FRONT PANEL BLOCK
3-7. MECHA DECK (CWN42FF609)
4 four screws
(BVTP3
× 8)
5 front panel block
1 flexible flat cable (19 core)
(CN991)
3 two connectors
(CN301, CN302)
2 flexible flat cable (9 core)
(RG190: AEP, RU, E3, EA, SP, AUS/
RG290:AEP, UK, RU, E3, SP, AUS)
flexible flat cable (13 core)
(RG190: E2, E51, AR/RG290: E2, E51, MX, AR)
(CN061)
4 two screws
(BVTP2.6
× 8)
1 four screws
(BVTP2.6
× 8
)
5 mecha deck
(CWN42FF609)
3 flexible flat cable (11core)
2 cover (TCM)
(Mexican model)
•Abbreviation
AR : Argentina model
AUS:Australian model
E2 : 120V AC area in E model
E3 : 240V AC area in E model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
MX : Mexican model
RU : Russian model
SP : Singapore model
Ver. 1.1

HCD-RG190/RG290
10
3-8. BACK PANEL SECTION
3-9. MAIN BOARD
3 two screws
(B3)
3 two screws
(B3)
4 back panel section
2 connector
(CN041)
1 flexible flat cable (9 core)
(RG190: RU, E2, E3, E51, EA, SP, AR, AUS/
RG290: RU, E2, E3, E51, MX, SP, AR, AUS),
flexible flat cable (11 core)
(RG190: AEP/RG290: AEP, UK)
(tuner (FM/AM))
4 screw
(BVTP3 × 8)
6 screw
(BV3)
8
5 screw
(BVTP3 × 8)
7 two screws
(BVTT4 × 8)
3 connector
(CN907)
1 flexible flat cable (11 core)
(CN008)
9 connector
(CN031)
0 MAIN boar
d
qa POWER board
2 connector
(CN903)
Ver. 1.1
•Abbreviation
AR : Argentina model
AUS:Australian model
E2 : 120V AC area in E model
E3 : 240V AC area in E model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
MX : Mexican model
RU : Russian model
SP : Singapore model

HCD-RG190/RG290
11
3-11. DRIVE BOARD, SW BOARD
3-10. BD BOARD (MEXICAN MODEL), CD BOARD (EXCEPT MEXICAN MODEL)
5 BD board ( Mexican model ),
CD board (except Mexican model )
2 screw
(BVTP2.6)
( Mexican model )
4 Remove soldering from the four points.
1 flexible flat (16 core) cable
(CN101)
3 gap tube
( Mexican model )
CD machanism deck
(back side)
3 connector
(CN703)
4 DRIVER board
6 SW board
2 wire (flat type) (5 core)
(CN702)
1 two screws
(BTTP (M2.6))
5 screw
(BTTP (M2.6))
CD machanism deck
(back side)

HCD-RG190/RG290
12
3-12. OPTICAL PICK-UP BLOCK
3-13. SENSOR BOARD
4 two coil springs
(insulator)
7 two coil springs
(insulator)
5 two insulators
8 two insulators
0 s crew (BVTP 2.6 × 8 )
(
Mexican model )
qa gap tube ( Mexican model )
6 two floating screws
(PTPWH M2.6)
2 h older (213) assy
qs Remove the four solders of motor.
qd flexible flat cable (16 core)
(CN101)
qf B D board ( Mexican model ),
C D board (except Mexican model )
qg optical pick-up block
1 floating screw
(PTPWH M2.6)
3 two floating screws
(PTPWH M2.6)
9
2 t ray
3 b elt (table)
5 p ulley (table)
8 s crew
(BTTP (M2.6))
0 SENSOR board
7 g ear (geneva)
9 connector
(
CN731)
1 floating screw
(PTPWH M2.6)
6 floating screw
(PTPWH M2.6)
4 floating screw
(PTPWH M2.6)

HCD-RG190/RG290
13
3-14. MOTOR (TB) BOARD
6 Remove the two solderings of motor.
8 MOTOR (TB) board
7 t able motor assy (M741)
5 two screws
(BTTP (M2.6))
4
3
wire (flat type) (5 core) (CN742)
1 stopper
2 stopper
3 Remove the two solderings of motor.
4 MOTOR (LD) board
1 b elt (loading)
5 l oading motor assy (M751)
2 two screws
(BTTP (M2.6))
3-15. MOTOR (LD) BOARD

14
HCD-RG190/RG290 SECTION 4
TEST MODE
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 of s, 7and [DISC 1] simultaneously.
2. The message “COLD RESET” is displayed on the fluorescent
indicator tube momentarily, then becomes standby states.
TUNING STEP CHANGE-OVER
(Except RG190: AEP, Russian, Saudi Arabia/
RG290: AEP, UK, Russian models)
A step of AM tuning interval can be changed over between 9 kHz
and 10 kHz.
Procedure:
1. Press the I/1button to turn the power on.
2. Press the [TUNER/BAND] button to select “AM”.
3. Press the I/1button to turn the power off.
4. Press two buttons of [TUNING --] and I/1simultaneously.
5. The message “AM 9K STEP” or “AM 10K STEP”is displayed
on the fluorescent indicator tube, and thus the tuning interval
is changed over.
CD SHIP (LOCK) MODE
This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.
Procedure:
1. Press the I/1button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press two buttons of 7and [POWER] simultaneously.
4. Themessage “LOCK” is displayed on the fluorescent indicator
tube, and the CD ship mode is set.
CD SHIP (LOCK) MODE & COLD RESET
This mode is used to perform CD ship (lock) mode and cold reset
simultaneously.
Procedure:
1. Press the I/1button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press three buttons of s, [CD] and Asimultaneously.
4. The message “COLD RESET” is displayed on the fluorescent
indicator tube momentarily, then becomes standby states.
ANTITHEFT LOCK MODE
This mode is used to unable to take sample disc out of disc table in
the shop.
Procedure:
1. Press the I/1button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press two buttons of sand Afor 5 seconds.
4. The message “LOCKED” is displayed on the fluorescent
indicator tube and the disc table is locked. (Even if pressing
the Abutton, the message “LOCKED” is displayed on the
fluorescent indicator tube and the disc table is locked)
5. To release this mode, press two buttons of sand Afor 5
seconds.
6. The message “UNLOCKED” is displayed on the fluorescent
indicator tube and the disc table is unlocked.
AMP TEST MODE
This mode is used to display the parameter of amplifier IC and
display the VACS status.
Procedure:
1. Press the I/1button to turn the power on.
2. Press three buttons of s, 7and Asimultaneously.
3. When the AMP test mode is activated, the message “AMP
TEST IN” is displayed on the fluorescent indicator tube
momentarily, then amplifier adjustment mode is displayed on
the fluorescent indicator tube.
4. Press the [REC PAUSE/START] buttonto changed overbetween
VACS status display mode and the amplifier IC parameter
display mode.
5. In this mode, press the [ENTER] button to changed over DBFB
on/off, and “DBFB ON” or “DBFB OFF” is displayed on the
fluorescent indicator tube.
6. In this mode, press the [SURROUND] button to changed over
surround on/off, and “SURROUND ON” or “SURROUND
OFF” is displayed on the fluorescent indicator tube.
7. In this mode, press the [EQ BAND] button to enter the equalizer
adjustment mode.
In the equalizer adjustment mode, press the [EQ BAND] button
to change over the adjustment band as LOW/MID/HIGH.And
turn the multi jog knob to adjust the equalizer level of each
bands.
8. To releasethe amplifierICparameter displaymode or equalizer
adjustment mode, press the I/1button to the power off.
MC TEST MODE
This mode is used to check operations of microprocessor.
Procedure:
1. Press the I/1button to turn the power on.
2. Press three buttons of s, 7and [DISC 3] simultaneously.
3. When the MC test mode is activated,VACS level is displayed
on the fluorescent indicator tube momentarily.
4. Turn the multi jog knob clockwise, the message “ALL EQ
MAX” is displayed on the fluorescent indicator tube
momentarily and turn the multi jog knob counter-
clockwise, the message “ALL EQ MIN” is displayed on
the fluorescent indicator tube momentarily.
5. Press the [ENTER] button, the message “ALL EQ FLAT” is
displayed on the fluorescent indicator tube momentarily.
6. Turn the [VOLUME] knob clockwise, the message “VOLUME
MAX” is displayed on the fluorescent indicator tube
momentarily and turn the [VOLUME] knob counterclockwise,
the message “VOLUME MIN” is displayed on the fluorescent
indicator tube momentarily.
7. Press the [REC PAUSE/START] button to changed over VACS
on/off.
8. Press the I/1button to release from this mode, then cold reset
is performed.
Ver. 1.1

15
HCD-RG190/RG290
VERSION DISPLAY MODE
This mode is used to check the model, destination and software
version.
Procedure:
1. Press the I/1button to turn the power on.
2. Press three buttons of s, 7 and [DISC 2] simultaneously.
3. Fluorescent indicator tube, and LEDs are all turned on.
4. Press the [REC PAUSE/START] button to display the software
version and year, month, day of the software creation.
5. Pressthe[CD SYNC] buttontodisplaythe modelanddestination.
6. To release this mode, press three buttons of s, 7and
[DISC 2] simultaneously.
CD ERROR CODE DISPLAY MODE
This mode can be used for error code display of CD section.
Procedure:
1. Press the I/1button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press three buttons of s, [CD] and [DISC 1] simultaneously.
4. When this mode is activated, mechanism deck error code is
displayed on the fluorescent indicator tube.
5. Press the [REC PAUSE/START] button tochanged overbetween
optical pick-up error code display mode and mechanism deck
error code mode.
6. Turn the multi jog knob tochange overdisplayof error history.
7. To release this mode, press the I/1button to turn the power
off.
1. Mechanism Deck Error Code Mode
When this mode is entered, mechanism deck error code is displayed
with the 10-character format on the fluorescent indicator tube.
The first digit from the left indicates:
The first digit from the left indicates which mode the error history
is. In the mechanism deck error code mode, “M” is displayed on
the fluorescent indicator tube.
The second digit from the left indicates:
(Error history number display)
The second digit from the left indicates which order the error history
is. “1” indicates the latest error history, and each time the number
increases by one, the error history goes back to one-previous error.
The third and 4th digit from the left indicates:
(Error status display)
The third and 4th digit from the left indicates which error status is
indicated.
Display Status
00 No error
08 Table operation time-out (Table does not move to the target
position within the specified time)
16 In the chucking down operation, the operation was retried
by the maximum number of times but the operation could
not be completed
17 In the chucking up and down operation, the reverse
recovery processing was attempted but it could not be
recovered
18 In the chucking up operation, the operation was retried by
the maximum number of times but the operation could not
be completed
20 Loading operation time-out (Table does not move to the
target position within the specified time)
22 As the chuck was in the ex-open status at the initialization,
the closing was attempted but could not be completed
The 5th and 6th digit from the left indicates:
(Present status display)
The 5th and 6th digit from the left indicates which operating status
when an error occurred is indicated.
Display Status
01 Open completion status
02 From open status, the movement to chucking down position
is under way
03 From chucking down position, the open operation is under
way
04 Chucking down completion status
10 The chucking down operation is under way
11 The chucking up operation is under way
12 Close completion status
13 From close status, the ex-open operation is under way
14 From ex-open status, the close operation is under way
18 Ex-pen completion status
The 7th and 8th digit from the left indicates:
(Motor status display)
The 7th and 8th digit from the left indicates which motor output
status when an error occurred is indicated.
Display Status
×0No table motor output
×1Table motor forward output
×2Table motor backward output
×3Table motor break output
0×No loading motor output
1×Loading motor forward output
2×Loading motor backward output
3×Loading motor break output
The 9th and 10 th digit from the left indicates:
(Tray status display)
The9th and 10thdigit from the left indicateswhich targetprocessing
when an error occurred is indicated.
Display Status
01 Open operation
12 Close operation
18 Ex-open operation

16
HCD-RG190/RG290
5 REPEAT LIMIT CANCEL MODE
Number of repeat for CD playback is 5 times when the repeat mode
is “REPEAT”. This mode is used to enables CD to repeat playback
for limitless times.
Procedure:
1. Press the I/1button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press three buttons of s, [CD] and 7simultaneously.
4. The message “LIMIT OFF” is displayed on the fluorescent
indicator tube momentarily, CD repeat 5 limit is cancelled.
CD POWER MANAGE
This mode is used to changed over CD power on/off for decreasing
of reception noise in the tuner mode.
Procedure:
1. Press the I/1button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press the I/1button to turn the power off.
4. Press two buttons of sand I/1simultaneously.
5. The message “CD POWER ON” or “CD POWER OFF” is
displayed on the fluorescent indicator tube, and CD power
on/off changed over in the tuner mode.
2. Optical Pick-up Error Code Mode
When this mode is entered, optical pick-up error code is displayed
with the 8-character format on the fluorescent indicator tube.
The first digit from the left indicates:
The first digit from the left indicates which mode the error history
is. In the optical pick-up error code mode, “D” is displayed on the
fluorescent indicator tube.
The second digit from the left indicates:
(Error history No. display)
The second digit from the left indicates which order the error history
is. “1” indicates the latest error history, and each time the number
increases by one, the error history goes back to one-previous error.
The third and 4th digit from the left indicates:
(Error status display)
The third and 4th digit from the left indicates which error status is
indicated.
Display Status
01 Not focused (TOC read without a disc)
02 GFS NG (TOC read with a disc chucked)
03 Start operation time-over
04 Defocused continuously (Defocused during TOC reading)
05 Q code not entered for specified time
06 Tracking not turned ON
07 Blank disc (Blank disc TOC read)
The 5th and 6th digit from the left indicates:
(Error step display)
The 5th and 6th digit from the left indicates which processing when
a trouble occurred
Display Contents
01 Power OFF in progress
02 Initialize in progress
03 Oscillation stopping
04 From oscillation stop, oscillation starting
05 Stopping
06 Stop operation is under way
07 Start operation in progress
08 TOC read in progress
09 Search operation is under way
0A Playback operation is under way
0B Pause operation is under way
0C Playback manual search operation is under way
0D Pause manual search operation is under way
0E —
The 7th and 8th digit from the left indicates:
The 7th and 8th digit from the left indicates which operation in
progress when a trouble occurred. (Step of each processing of the
5th and 6th digits is indicated)

17
HCD-RG190/RG290
SECTION 5
MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head pinch roller
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head
demagnetizer. (Do not bring the head magnetizer close to the
erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, appiy suitable locking compound to
the parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
TORQUE MEASUREMENT
Mode Torque Meter Meter Reading
2.6 – 6.9 mN⋅m
FWD CQ-102C (30 – 70 g⋅cm)
(0.41 – 0.97 oz⋅inch)
FWD 0.15 – 0.59 mN⋅m
Back Tension CQ-102C (1.5 – 6.0 g⋅cm)
(0.021 – 0.083 oz⋅inch)
5.4 – 16.7 mN⋅m
FF/REW CQ-201B 55 – 170 g⋅cm)
0.76 – 2.35 oz⋅inch)
TAPE TENSION MEASUREMENT
Mode Tension Meter Meter Reading
FWD CQ-403A more than 100 g
(more than 3.53 oz)

18
HCD-RG190/RG290
4. After the adjustments, apply suitable locking compound to
the pats adjusted.
Adjustment Location: Playback Head (DECK-A)
Record/Playback/Erase Head (DECK-A)
1. Demagnetize the record/playback head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjust.
TEST TAPE
Tape Signal Used for
P-4-A063 6.3 kHz, -10 dB Azimuth Adjustment
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
Note 1:Remove the mecha deck before this adjustment.
(Refer to Section 3. DISASSEMBLY (See page 6))
Note 2:Perform this adjustment for both decks.
Procedure:
1. Mode: Playback
2. Turn the adjustment screwand check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
3. Mode: Playback
set
test tape
P-4-A063
(6.3 kHz, –10 dB) oscilloscope
VH
waveform of oscilloscope
in phase 45°90°135°180°
good wrong
MIC. AUX. HP board
PHONES jack
(J701)
Screw
position
L-CH
peak
within
1dB
Output
level
L-CH
peak R-CH
peak
within
1dB
Screw
position
R-CH
peak
SECTION 6
ELECTRICAL ADJUSTMENTS
0 dB=0.775 VDECK SECTION
set
MIC. AUX. HP board
PHONES jack
(J701)
+
–
level mete
r
test tape
P-4-A063
(6.3 kHz, –10 dB)

19
HCD-RG190/RG290
CD SECTION
Note:
1. CD Block is basically constructed to operate without adjustment.
2. UseYEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10 MΩimpedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specified value with the following checks.
5. Check the focus bias check when optical pick-up block is replaced.
•Abbreviation
MX: Mexican model
FOCUS BIAS CHECK
Procedure :
1. Connect oscilloscope to TP (RFACI) and TP (VC) on the CD
board (Except RG290: MX) or BD board (RG290: MX).
2. Press the I/1button to turn the power on, and press
the Abutton to open the CD disc table.
3. Set disc (YEDS-18) on the tray and press the 7button to
playback.
4. Confirm that oscilloscope waveform is as shown in the figure
below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.
Connecting Location:
+
–
CD board (Except RG290: MX)
BD board (RG290: MX)
TP (RFACI)
TP (VC)
oscilloscop
e
(DC range)
VOLT/DIV: 200 m
V
TIME/DIV: 500 ns
level:
0.9 ±0.4 Vp-p
TP
(VC)
TP
(RFACI)
IC201
– CD Board (Conductor Side) (Except RG290: MX) –
TP
(VC)
TP
(RFACI)
IC201
–BD Board (Conductor Side) (RG290: MX) –

20
HCD-RG190/RG290
MEMO