Sony HCD-RV7 User manual

SERVICE MANUAL
Amplifier section
Saudi Arabian Models
The following are measured at AC 127, 220, 240V,
50/60 Hz
DIN power output (rated) 160 + 160 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
210 + 210 watts (HCD-RV8)
Outputs
VIDEO OUT: max. output level 1 Vp-p,
(phono jacks) unbalanced, Sync.
negative load impedance
75 ohms
AUDIO OUT: Voltage 250 mV
(phono jacks) impedance 47 kilohms
PHONES: accepts headphones of
(stereo mini jack) 8 ohms or more
FRONT SPEAKER: accepts impedance of 6 to
16 ohms
SURROUND SPEAKER: accepts impedance of
24 ohms or more
SUBWOOFER:
(RV8) accept impedance of 8 ohms or more
VIDEO CD/CD player section
System Compact disc and digital
audio system
Laser Semiconductor laser
(λ=795nm)
Frequency response 2 Hz – 20 kHz (±0.5 dB)
Wave length 795 nm
Video color system format NTSC, PAL
Tape player section
Recording system 4-track 2-channel stereo
Frequency response 50 – 13,000 Hz (±3 dB),
using Sony TYPE I
cassette
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
200 + 200 watts (HCD-RV7)
(6 ohms at 1 kHz,
10% THD)
Other Models
The following are measured at AC 120, 220, 240V
50/60 Hz
DIN power output (rated) 160 + 160 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
210 + 210 watts (HCD-RV8)
200 + 200 watts (HCD-RV7)
(6 ohms at 1 kHz,
10% THD)
Inputs
GAME (VIDEO): 1 Vp-p, 75 ohms
(phono jack)
GAME (AUDIO): Voltage 250 mV,
(phono jacks) impedance 47 kilohms
MD/VIDEO (AUDIO) IN: voltage 450 mV/250 mV,
(phono jacks) impedance 47 kilohms
MIC: sensitivity 1 mV,
(phone jack) impedance 10 kilohms
AM tuner section
Tuning range
Latin American models: 530 – 1,710 kHz
(with the interval set at 10
kHz)
531 – 1,710 kHz
(with the interval set at 9
kHz)
Saudi Arabian 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
COMPACT DISC DECK RECEIVER
E Model
HCD-RV7/RV8
Ver 1.0 2002.07
9-874-091-01 Sony Corporation
2002G0500-1 Home Audio Company
C2002.07 Published by Sony Engineering Corporation
SPECIFICATIONS
HCD-RV7/RV8aretheamplifier, video CD/CD player,
tape player and tuner section in MHC-RV7/RV8.
– Continued on next page –
Photo: HCD-RV8
Model Name Using Similar Mechanism NEW
CD CD Mechanism Type CDM58E-30BD62
Section Base Unit Name BU-30BD62
Optical Pick-up Name A-MAX.3
TAPE Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism Type TCM-230AWR41CS
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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HCD-RV7/RV8
2
Notes on chip component replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 ˚C dur-
ing 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
other than those specified herein may result in hazardous ra-
diation exposure.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR 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 PUB-
LISHED BY SONY.
The following caution label is located inside the unit.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
General
Power requirements
Thailand models: 220 V AC, 50/60 Hz
Saudi Arabian models: 120 – 127 V, 220 V or
230 – 240 V AC, 50/60
Hz
Adjustable with voltage
selector
Other models: 120 V, 220 V or 230 – 240
V AC, 50/60 Hz
Adjustable with voltage
selector
Power consumption 300 watts (HCD-RV8)
240 watts (HCD-RV7)
Dimensions (w/h/d) Approx. 280 x 360 x 445
mm
Mass : Approx. 11.0 kg (HCD-RV7) Approx. 13.1 kg (HCD-RV8)
Design and specifications are subject to change
without notice.
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HCD-RV7/RV8
3
TABLE OF CONTENTS
1. SERVICING NOTES ................................................ 4
2. GENERAL
Location of Controls ....................................................... 5
Setting the Clock............................................................. 6
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 7
3-2. Top Case .......................................................................... 8
3-3. Loading Panel.................................................................. 8
3-4. CD Mechanism Deck (CDM58E-30BD62) ................... 9
3-5. Front Panel Section ......................................................... 9
3-6. Back Panel Section.......................................................... 10
3-7. MAIN Board ................................................................... 10
3-8. BU-30 (61) Assy ............................................................. 11
3-9. DRIVER Board, MOTOR Board,
SENSOR (CD) Board and VIDEO Board ...................... 11
3-10. Tape Mechanism Deck (TCM-230AWR41CS).............. 12
3-11. Belt .................................................................................. 12
3-12. SW Board, HEAD (A) Board and HEAD (B) Board..... 13
4. TEST MODE.............................................................. 14
5. MECHANICAL ADJUSTMENTS....................... 18
6. ELECTRICAL ADJUSTMENTS
Deck section .................................................................... 18
CD Section ...................................................................... 21
VIDEO Section ............................................................... 21
7. DIAGRAMS
7-1. Block Diagram – CD SERVO Section – ....................... 22
7-2. Block Diagram – AUDIO/VIDEO CD Section –.......... 23
7-3. Block Diagram – TUNER/TAPE DECK Section – ...... 24
7-4. Block Diagram – MAIN Section – ................................ 25
7-5. Block Diagram – DISPLAY/KEY CONTROL/
POWER SUPPLY Section – ........................................... 26
7-6. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 27
7-7. Printed Wiring Board – BD Board – ............................. 28
7-8. Schematic Diagram – BD Board – ................................ 29
7-9. Schematic Diagram – VIDEO Board (1/2) – ................ 30
7-10. Schematic Diagram – VIDEO Board (2/2) – ................ 31
7-11. Printed Wiring Board – VIDEO Board –....................... 32
7-12. Printed Wiring Boards
– DRIVER/MOTOR/SENSOR (CD) Boards – .............. 33
7-13. Schematic Diagram
– DRIVER/MOTOR/SENSOR (CD) Boards – .............. 33
7-14. Printed Wiring Boards
– SW/HEAD (A)/HEAD (B) Boards – .......................... 34
7-15. Schematic Diagram – SW Board –................................ 35
7-16. Printed Wiring Board – MAIN Board – ........................ 37
7-17. Schematic Diagram – MAIN Board (1/4) – .................. 38
7-18. Schematic Diagram – MAIN Board (2/4) – .................. 39
7-19. Schematic Diagram
– MAIN (3/4)/HEAD (A)/HEAD (B) Boards –............. 40
7-20. Schematic Diagram – MAIN Board (4/4) – .................. 41
7-21. Printed Wiring Board – GAME IN Board – .................. 42
7-22. Schematic Diagram – GAME IN Board –..................... 43
7-23. Printed Wiring Board – SUB WOOFER Board – ......... 44
7-24. Schematic Diagram – SUB WOOFER Board – ............ 45
7-25. Printed Wiring Boards
– POWER/SENSOR Boards –........................................ 46
7-26. Schematic Diagram
– POWER/SENSOR Boards –........................................ 47
7-27. Printed Wiring Boards
– PANEL/CD OPEN/CD SWITCH Boards – ................ 48
7-28. Schematic Diagram
– PANEL/CD OPEN/CD SWITCH Boards – ................ 49
7-29. Printed Wiring Boards
– PAD SWITCH/VOL Boards – ..................................... 50
7-30. Schematic Diagram
– PAD SWITCH/VOL Boards – ..................................... 51
7-31. Printed Wiring Boards
– MAIN TRANS/SUB-TRANS Boards –...................... 52
7-32. Schematic Diagram
– MAIN TRANS/SUB-TRANS Boards –...................... 53
7-33. IC Pin Function Description ........................................... 56
8. EXPLODED VIEWS
8-1. Panel Section ................................................................... 65
8-2. Front Panel Section ......................................................... 66
8-3. Chassis Section ............................................................... 67
8-4. CD Mechanism Deck Section (CDM58E-30BD62) ...... 68
8-5. Base Unit Section (BU-30BD62) ................................... 69
8-6. Tape Mechanism Deck Section
(TCM-230AWR41CS) .................................................... 70
9. ELECTRICAL PARTS LIST ............................... 71
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4
HCD-RV7/RV8 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 electro-
static 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 emis-
sion, observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.
•MODEL IDENTIFICATION
– Back Panel –
MODEL PART No.
RV7: E, Singapore and Malaysia
models 4-237-780-3[]
RV8: E, Singapore and Malaysia
models 4-237-780-4[]
RV7: Thai model 4-237-780-8[]
RV7: Saudi Arabia model 4-239-663-6[]
RV8: Saudi Arabia model 4-239-663-7[]
PART No.
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5
HCD-RV7/RV8
SECTION 2
GENERAL This section is extracted from
instruction manual.
ALBUM + ql
ALBUM – wh
CD ek
CD SYNC HI-DUB qg
CINEMA SPACE rs
DECK A Awl
DECK B Aqj
DIMMER 9
DIRECTION q;
DISC 1~3 4
DISC SKIP EX-CHANGE 5
Disc tray 3
DISPLAY 7
ECHO LEVEL wa
EDIT q;
EFFECT ON/OFF rh
ENTER rf
FM MODE qd
GAME ef
GAME EQ rj
GAME INPUT (jacks) wg
GAME MIXING es
GROOVE rk
IR (receptor) 2
KARAOKE PON ea
MD (VIDEO) eg
MIC jack wd
MIC LEVEL ws
MOVIE EQ ra
MUSIC EQ el
OPEN/CLOSE Z6
P FILE rd
PHONES (jack) w;
PLAY MODE ed
PICTURE EFFECT rg
REC PAUSE/START qh
REPEAT qd
SPECTRUM 8
SHUTTLE qa
SURROUND SPEAKER MODE
e;
TAPE A/B eh
TUNER/BAND ej
TUNER MEMORY ed
VOLUME qs
BUTTON DESCRIPTIONS
@/1 1
hH wf
xqf
Xwj
>qk
.wk
M/+ ql
m/– wh
v/V/b/Br;
ALPHABETICAL ORDER
A - D
K - Q
12
4
56
7
8
90
K
L
M
NO
qh
qj
ql
qk
w
;
w
a
w
s
W
X
wg
wh
wj
wk
ek
wl
el
e;
ea
es
eg
ed
ef
ej
eh
rd
r; r a
rs
rk
rf
E - J
R - Z
3
LOCATION OF CONTROLS
– Front Panel –
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6
HCD-RV7/RV8
Remote Control
ALBUM +/– ed
CD rg
CINEMA SPACE ws
CLEAR qf
CLOCK/TIMER SELECT 2
CLOCK/TIMER SET 3
D.SKIP qa
DIMMER el
DISPLAY ra
EFFECT ON/OFF wa
ENTER wk
GAME rs
GAME EQ wj
GAME MIXING rd
KARAOKE PON ql
KEY CONTROL #/2w;
MD (VIDEO) rf
MOVIE EQ wf
MUSIC EQ wl
NEXT ej
Numeric buttons q;
ON SCREEN qd
P FILE wg
PICTURE EFFECT ea
PLAY MODE es
PRESET +/– ef
PREV eh
REPEAT qs
RETURN Oeg
SELECT qg
SLEEP 1
SPECIAL MENU ek
SPECTRUM r;
SURROUND SPEAKER MODE
e;
TAPE A/B 6
TUNER/BAND rh
TUNING +/– qj
TV CH +/– 8
TV @/1 4
TV VOL +/– 7
TV/VIDEO 9
VOL +/– wd
BUTTON DESCRIPTIONS
@/1 5
nN qg
Xqh
xqk
./>ef
m/Mqj
v/V/b/Bwh
A - D
N - R
ALPHABETICAL ORDER
E - M
S - Z
123
456
789
.
.m
m
v
v
+
–
2
3
+
–
+
–
Setting the clock
1Turn on the system.
2Press CLOCK/TIMER SET on the
remote.
When you set the time for the first time,
proceed to step 5.
3Press Vor vrepeatedly to select
CLOCK SET.
4Press ENTER.
5Press Vor vrepeatedly to set the hour.
6Press ENTER.
7Press Vor vrepeatedly to set the
minute.
8Press ENTER.
The clock starts functioning.
Tip
If you have 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.
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7
HCD-RV7/RV8
3-4. CD MECHANISM DECK
(CDM58E-30BD62)
(Page 9)
3-3. LOADING PANEL
(Page 8)
3-2. TOP CASE
(Page 8)
3-5. FRONT PANEL SECTION
(Page 9)
3-6. BACK PANEL SECTION
(Page 10)
3-7. MAIN BOARD
(Page 10) 3-11.BELT (Page 12)
3-10.TAPE MECHANISM DECK
(TCM-230AWR41CS)
(Page 12)
3-9. DRIVER BOARD,
MOTOR BOARD,
SENSOR (CD) BOARD AND
VIDEO BOARD
(Page 11)
3-8. BU-30 (61) ASSY
(Page 11)
3-12.SW BOARD,
HEAD (A) BOARD AND
HEAD (B) BOARD
(Page 13)
SET
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
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8
HCD-RV7/RV8
8
8
4
two screws (case 3 TP2)
5 two screws
(BVTP 3
× 10)
2 two screws
(BVTP 3
× 10)
1 three screws (case 3 TP2
)
4 screw (case 3TP2)
6 side panel (L)
3 side panel (R)
7 two screws
(BVTP 3
× 12)
9 top case
Note: Follow the disassembly procedure in the numerical order given.
3-2. TOP CASE
3-3. LOADING PANEL
2 Pull-out the disc table.
4 loading panel
1 Turn the pulley in the direction of the arrow.
Front panel side
CD mechanism deck (CDM58E-30BD62)
3 four claws
–BOTTOM VIEW–
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9
HCD-RV7/RV8
3 screw
(BVTP 3 × 10 )
3 screw
(BVTP 3
× 10 )
5 CD mechanism deck
(CDM58E-30BD62)
1 wire (flat type)
(19 core) (CN201
)
2 connector
( CN202)
2 connector
(
CN301)
3-4. CD MECHANISM DECK (CDM58E-30BD62)
3-5. FRONT PANEL SECTION
3 four screws
(BVTP 3
× 10 )
1 wire (flat type)
(17 core)
(CN304)
2 connector ( CN1)
2 connector ( CN2)
5 front panel section
2 connector
(
CN783)
2 connector
(
CN781)
4 connector
(
CN401)
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10
HCD-RV7/RV8
1 two screws
(BVTP 3
× 10)
5 main board
4 two claws
claw
main board
2 two connectors
(CN502, CN503)
3 connector (CN904)
(HCD-RV8)
3 connector (CN903
)
(HCD-RV8)
6 five screws
(BVTP 3
× 10)
6 two screws
(BVTP 3
× 10)
6 four screws
(BVTP 3
× 10
)
2 screw
(BVTP 3
× 10)
5 connector (CN973)
4 connector (CN701)
7 back panel section
5 connector (CN891)
3 sensor board
5 connector (CN976)
1 wire (flat type) (11core)
(CN702)
5 connector (CN974)
3-6. BACK PANEL SECTION
3-7. MAIN BOARD
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11
HCD-RV7/RV8
qd
9
7 two screws (PTPWH M2.6
)
qs screw (PTPWH M2.6)
8 screws (DIA. 12)
5 two screws (BVTP 2.6 × 8)
4 BD board
3 Remove the four solders of
sled motor and spindle motors.
0 two insulators (BU-30)
qf holder (BU) (BU-30) assy
0 two insulators (BU-30)
6 two stoppers (BU)
2 wire (flat type) (16 core)
(CN102)
qa BU-30 (61) assy
1 wire (flat type) (28 core)
(CN101)
3-8. BU-30 (61) ASSY
3-9. DRIVER BOARD, MOTOR BOARD, SENSOR (CD) BOARD AND VIDEO BOARD
4 Pull out the disc table.
9 two screws (BVTP 2.6 × 8)
qf screw (PTPWH 2.6 × 8)
qg tray
6 s crew (BVTP 2.6 × 8)
qh screw (BVTP 2.6 × 8)
0
qd
motor board
qj sensor (CD) board
7 driver board
3 video board
2 two s crews
(BVTP 2.6
× 8)
8 Remove the two solderings of motor.
qs connector (CN722)
5 wire (flat type) (8 core)
(CN702)
qa wire (flat type) (8 core)
(CN721)
1 wire (flat type) (28 core)
(CN101)
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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12
HCD-RV7/RV8
3-10. TAPE MECHANISM DECK (TCM-230AWR41CS)
3-11. BELT
8 tape mechanism deck
(TCM-230AWR41CS)
1 two knobs (mic)
2 five screws
(BVTP 2.6 × 8)
2 two screws
(BVTP 2.6 × 8)
4 two screws
(BVTP 2.6 × 8)
6 two screws
(P 2.6 × 3)
3
5 game in board
7 shield plate (TC
)
1 two screws
(PS 2.6 × 5)
2 motor assy (capstan
)
(M901)
3 belt (capstan C)
4 belt (capstan B)
4 belt (capstan B)
5 belt (FR)
5 belt (FR)
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13
HCD-RV7/RV8
3-12. SW BOARD, HEAD (A) BOARD AND HEAD (B) BOARD
6 screw (PTT 2 × 4)
4 screw (PTT 2 × 4)
3 SW board
2 five claws
5 head (A) board
7 head (B) board
1 Remove the four solders.
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14
HCD-RV7/RV8 SECTION 4
TEST MODE
[GC TEST MODE]
•This mode is used to check the fluorescent indicator tube, LED,
model, destination software version, volume, key and VACS
level.
Procedure:
1. Pressthreebuttons x, [ENTER], and[DISC 2] simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
3. When you want to enter the software version display mode,
press [DISC 1]. The model and destination are displayed.
4. Each time [DISC 1] is pressed, the display changes starting
from MC version, GC version, CD version, CDDM version,
CDMA version, CDMB version, BDA version, BDB version,
STversion,TA version,TM versionandTCversionin this order,
and returns to the MC version display.
5. When [DISC 3] is pressed while the version numbers are being
displayed except model and destination, year, month and day of
the software creation appear. When [DISC 3] is pressed again, the
display returns to the software version display. When [DISC 1] is
pressed while year, month and day of the software creation are
beingdisplayed,theyear,monthanddayofcreation ofthesoftware
versions are displayed in the same order of version display.
6. Press [DISC 2] button, and the key check mode is activated.
7. In the key check mode, the fluorescent indicator tube displays
“K0V0”. Each time a button is pressed, “K” value increases.
However, once a button is pressed, it is no longer taken into
account.
“V” value increases like 1, 2, 3 ... if rotating [VOLUME] knob
in “+” direction, or it decreases like 0, 9, 8 ... if rotating in
“–” direction.
8. Also when [DISC 3] is pressed after lighting of all LEDs and
fluorescent indicator tubes, value ofVACS level appears.
9. To release this mode, press three buttons in the same manner as
step 1, or disconnect the power cord.
[MC TEST MODE]
•This mode is used to check operations of the respective sections
of Amplifier, Tuner, and Tape.
Procedure:
* To enter MC Test Mode
1. Press three buttons of x, [ENTER] and [DISC 3] simultaneously.
2. The messages MUSIC, MOVIE, GAME and P FILE flash on
the fluorescent indicator tube.
The input FUNCTION is changed to VIDEO.
* Check of Amplifier
1. When vbutton is pressed, GEQ increases to its maximum and
a message “GEQ MAX” appears.
2. When Vbutton is pressed, GEQ decreases to its minimum and
a message “GEQ MIN” appears.
3. When bor Bbutton is pressed, GEQ is set to flat and a
message “GEQ FLAT” appears.
4. When the [VOLUME] knob is turned clockwise even slightly,
the sound volume increases to its maximum and a message
“VOLUME MAX” appears for two seconds, then the display
returns to the original display.
5. When the [VOLUME] knob is turned counter-clockwise even
slightly, the sound volume decreases to its minimum and a
message “VOLUME MIN” appears for two seconds, then the
display returns to the original display.
* Check of clock frequency
1. To check the frequency of clock used to run the time in the unit,
the clock output is available at IC501 pin el (CLOCK-OUT)
on the MAIN board only during MC test mode.
2. The frequency is 32.768 kHz or so.
* Tape function
1. When a tape is inserted in tape deck B and recording is started,
the input source function selects VIDEO automatically.
When [CD SYNC HI-DUB] button is pressed during recording
in function, ALC is turned on.
2. When xbutton is pressed to stop recording, the tape deck B is
selectedandtape isrewound,tapeisrewoundusing –mbutton,
tape is stops at around the record-starting position and playback
of the recordedportion of the tape isstarted. If the [REC PAUSE/
START] buttonis pressed forapauseandpressed again toresume
recording, when tape deck B is rewound, tape deck B will be
rewound until the position where the pause is applied.
3. When [CD SYNC HI-DUB] button is pressed during playback
oftapedeckB,eithernormalspeedorhighspeedcan be selected
by this button.
* AMS Test Mode
1. Select the function “TAPE A” or “TAPE B”.
2. Select the loop and relay by pressing the [DIRECTION] button.
Insert a test tapeAMS-110A orAMS-120 to selected tape deck.
3. Press the [SPECTRUM] button to enter theAMS test mode.
4. After a tape is rewound first, the FF AMS is checked, and the
mechanism is shut off after detecting the AMS signal twice.
5. Then the REW AMS is checked and the mechanism is shut off
after detecting the AMS signal twice.
6. When the check is complete, a message of either OK or NG
appears.
* To release MC Test mode.
1. To release this mode, press the ?/1button.
2. The cold reset is enforced at the same time.
[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, [ENTER], and ?/1simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously,
and the set is reset.
[VACS ON/OFF MODE]
•This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:
1. Press ?/1button to turn the set ON.
2. Pressthe[ENTER] and [GAME MIXING] buttons simultaneously.
The message “VACS OFF” or “VACS ON” appears.
[TUNER STEP CHANGE]
(EXCEPT Saudi Arabia model)
•Astep ofAM channels can be changed over between 9 kHz and
10 kHz.
Procedure:
1. Press ?/1button to turn the set ON.
2. Select the function “TUNER”, and press [TUNER/BAND]
button to select the BAND “AM”.
3. Press ?/1button to turn the set OFF.
4. Press [ENTER] and ?/1buttons simultaneously, and the
display of fluorescent indicator tube changes to “AM 9k STEP”
or “AM 10k STEP”, and thus the channel step is changed over.
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15
HCD-RV7/RV8
Aging mode sequence (CD section) :
Start (from disc 1)
Disc chucking
TOC read
Play first track for 2 seconds
Play last track for 2 seconds
EX-change open/close
Open the disc tray
Disc skip
Close the tray
Change the next disc.
•Display at an error occurred (Error display mode)
Procedure:
1. Pressthreebuttonsof x,[ENTER],and[DISC 1] simultaneously
to enter the error display mode.
2. It displays of total error.
3. Eachtimethe –mor M+button is pressed,displaychange
as below.
4. To clear the error record, operate the cold reset. (Refer to the
“MC COLD RESET”)
5. To release this mode, press the ?/1button or disconnect the
power plug to turn the power OFF.
Display of total error
–m
Button M+ Button
Display of Mechanical errors
–m
Button M+ Button
Display of no disc errors
[CD SERVICE MODE]
•This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the optical pick-up.
Procedure:
1. Press ?/1button to turn the set ON.
2. Select the function “CD”.
3. Press three buttons x, [ENTER] , and [OPEN/CLOSE] si-
multaneously.
4. The CD service mode is selected.
5. With the CD in stop status, press M+ button to move the
optical pick-up to outside track, or press – mbutton to inside
track.
6. To release this mode, press the ?/1button.
[AGING MODE]
This mode can be used for operation check of CD section and tape
deck section.
CD section and tape deck section work in parallel.
•If an error occurred:
The aging operation stops only an error occurred sections and
display then status.
•If no error occurs:
The aging operation continues repeatedly.
Procedure:
1. Press the ?/1button to turn the power ON, and press the [CD]
button to select the function “CD”.
2. Set discs on all trays, and set tapes into the decks A and B
respectively.
3. Press the [PLAY MODE] button to set the “ALL DISCS” mode,
and press the [REPEAT] button to “REPEAT” off.
4. Press three buttons of x, [ENTER], and [EX-CHANGE/DISC
SKIP] simultaneously.
5. Aging operations of CD and tape are started at the same time.
6. To release this mode, press the ?/1button or disconnect the
power code to turn the power OFF.
1. Display at the Aging Mode
Display operating state of CD section and tape deck section
alternately.
If an error occurred, stop display which that section.
2. CD Section
The sequence during the aging mode is following as below.
Display at the aging mode is the same as the normal operation.
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16
HCD-RV7/RV8
1) Display of total error
EMC**: The number of mechanical error.
EDC**: The number of no disc error after chucking the disc.
2) Display of mechanical errors
M*:The number of mechanical error (“00” is latest one)
(Press the .or >button to changes next error display)
$$:Not used
%%:Loading error (Second figure is not used)
D: The error in the midst of close at the except mechanical
trouble.
E: The error in the midst of open at the except mechanical
trouble.
C: The error in the midst of chucking up at the except
mechanical trouble.
F: The error in the midst of chucking down at the except
mechanical trouble.
&&:Loading error
01: The error in the midst of chucking up.
02: The error in the midst of chucking down.
03: Time-out of EX-open.
05: Time-out of EX-close.
##:Not used
3) Display of no disc errors
D*:The number of mechanical error(“00” is latest one)
(Press the .or >button to changes next error display)
$$:Error type
01: Focus error
02: GFS error
03: Set up error
%%:Not used
&&:00: No disc judgment without chucking retry.
01: No disc judgment after chucking retry.
##:The state when judged no disc error
01: Stop
02: Set up
03: TOC read
04: Access
05: Play
06: Pause
07: Manual search (Play)
08: Manual search (Pause)
Display
EMC**EDC**
Display
M*$$%%&&##00
Display
D*$$%%&&##00
3. Tape Deck Section
The sequence during the aging mode is following as below.
If an error occurred, stop display that step.
Aging mode sequence (Tape deck section) :
Rewind the tape A and B
“TAPE A AG-1”
Shut off
FWD play the tape A
“TAPE A AG-2”
2 minutes
Fast forward the tape A
“TAPE A AG-3”
Shut off or 20 seconds
REV play the tape A
“TAPE A AG-4”
2 minutes
Rewind the tape A
“TAPE A AG-5”
Shut off
FWD play the tape B
“TAPE B AG-2”
2 minutes
Fast forward the tape B
“TAPE B AG-3”
Shut off or 20 seconds
REV play the tape B
“TAPE B AG-4”
2 minutes
Rewind the tape B
“TAPE B AG-5”
Shut off
Note: “TAPE *AG-*” is display of each step.
[CD REPEAT 5 LIMIT OFF MODE]
Number of repeat for CD playback is 5 times when the repeat mode
is“REPEAT”.ThismodeenablesCDtorepeatplaybackforlimitless
times.
Procedure:
1. Press the ?/1button to turn the power on, and press the [CD]
button to select the function “CD”.
2. Pressthreebuttons of x, [REPEAT],and[CD] simultaneously
to enter the CD repeat 5 limit off mode and display “REPEAT
OFF”.
3. To release this mode, operate the cold reset. (Refer to the “MC
COLD RESET”)
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17
HCD-RV7/RV8
[CD SHIP MODE (MEMORY CLEAR) ]
•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. Set to the standby state.
2. Press three buttons x,[ENTER] and[GAME] simultaneously.
3. After the “STANDBY” display blinks, a message “LOCK” is
displayed on the fluorescent indicator tube, and the CD ship
mode is set.
[CD SHIP MODE (NO MEMORY CLEAR) ]
•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. Set to the standby state.
2. Press the [CD] and ?/1buttons simultaneously.
3. After the “STANDBY” display blinks, a message “LOCK” is
displayed on the fluorescent indicator tube, and the CD ship
mode is set.
[VCD COLOR SYSTEM MODE ]
•The color system can be changed over PAL, AUTO or NTSC.
Procedure:
1. Set to the standby state.
2. Press the [MUSIC EQ] and ?/1buttons simultaneously to
change the color system to PAL, and a message “COLOR PAL”
is displayed on the fluorescent indicator tube.
3. Press the [MOVIE EQ] and ?/1buttons simultaneously to
change the color system to AUTO, and a message “COLOR
AUTO” is displayed on the fluorescent indicator tube.
4. Pressthe[GAME EQ] and ?/1buttonssimultaneouslyto change
the color system to NTSC, and a message “COLOR NTSC” is
displayed on the fluorescent indicator tube.
[CDTRAY LOCK MODE ]
•This mode is used to lock the CD tray of display set in the shop
to prevent demo discs being stolen.
Procedure:
1. Press ?/1button to turn the set ON.
2. Selectthefunction“CD”, thenpressthe xand[OPEN/CLOSE]
buttons simultaneously for five seconds.
3. The message “LOCKED” is displayed on the fluorescent
indicator tube, and the tray is locked.
4. To release from this mode, press the xand [OPEN/CLOSE]
buttons simultaneously for five seconds again.
5. The message “UNLOCKED” is displayed on the fluorescent
indicator tube, and the tray is unlocked.
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18
HCD-RV7/RV8SECTION 5
MECHANICAL ADJUSTMENTS SECTION 6 ELECTRICAL ADJUSTMENTS
0 dB=0.775 V
DECK SECTION
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.
4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in this
service manual. (As a general rule, playback circuit adjustment
should be completed before performing recording circuit
adjustment.)
6. The adjustments should be performed for both L-CH and R-
CH.
7. Switches and controls should be set as follows unless otherwise
specified.
•Test Tape
RECORD/PLAYBACK HEAD AZIMUTH ADJUST-
MENT
DECK A DECK B
Note: Perform this adjustments for both decks
Procedure:
1. Mode: Playback
Tape Signal Used for
P-4-A100 10 kHz, –10 dB Azimuth Adjustment
WS-48B 3 kHz, 0 dB Tape Speed Adjustment
PRECAUTION
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads pinch rollers
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head
demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
TORQUE MEASUREMENT
set
MAIN board
CN301
Pin
1 (L-CH)
Pin
3 (R-CH)
MAIN board
CN301
Pin
2 (GND)
+
–
level meter
test tape
P-4-A100
(10 kHz, –10 dB)
3.06 N • m to 6.96 N • m
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
0.19 N • m to 0.58 N • m
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
3.06 N • m to 6.96 N • m
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
0.19 N • m to 0.58 N • m
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
6.96 N • m to 14.02 N • m
71 to 143 g • cm
(0.98 – 1.99 oz • inch)
9.80 N • m
100 g or more
(3.53 oz or more)
9.80 N • m
100 g or more
(3.53 oz or more)
Mode Torque meter
CQ-102C
CQ-102C
CQ-102RC
CQ-102RC
CQ-201B
CQ-403A
CQ-403R
Meter reading
FWD
FWD
back tension
REV
REV
back tension
FF/REW
FWD tension
REV tension
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19
HCD-RV7/RV8
2. Turn the adjustment screw and 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
4. After the adjustments, apply suitable locking compound to the
pats adjusted.
Adjustment Location: Playback Head (DeckA).
Record/Playback/Erase Head (Deck B).
TAPE SPEED ADJUSTMENT DECK B
Note: Start the Tape Speed adjustment as below after setting to the test
mode.
In the test mode, the tape speed is high during pressing the
[CD SYNC HI-DUB] button.
Procedure:
1. Press ?/1button to turn the set ON.
2. Press three buttons x, [ENTER] and [DISC 3] simultaneously.
To release from the test mode, press the ?/1button.
Mode: Playback
1. Insert the WS-48B into the deck B.
2. Press the hH button on the deck B.
3. Press the [CD SYNC HI-DUB] button in playback mode.
Then at HIGH speed mode.
4. AdjustRV1001 on the SW board so thatfrequencycounterreads
6,000 ±180 Hz.
5. Press the [CD SYNC HI-DUB] button.
Then back to NORMAL speed mode.
6. AdjustRV1002 on the SW board so thatfrequencycounterreads
3,000 ±90 Hz.
Adjustment Location: SW board
Sample Value of Wow and Flutter: 0.3% or less W. RMS (JIS)
(WS-48B)
Screw
position
L-CH
peak
within
1dB
Output
level
L-CH
peak R-CH
peak
within
1dB
Screw
position
R-CH
peak
MAIN
board
CN301
set
test tape
P-4-A100
(10 kHz, –10 dB)
pin
3
oscilloscop
e
L-CH
R-CH
VH
waveform of oscilloscope
in phase 45 ° 90 ° 135 ° 180 °
good wrong
pin 2
pin 1
L
R
+
–
set
test tape
WS-48B
(3 kHz, 0 dB)
MAIN board
CN301 Pin
2 (GND)
MAIN board
CN301
Pin
1 (L-CH)
Pin
3 (R-CH)frequency counter
forward reverse
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20
HCD-RV7/RV8
4. Mode: Record
5. Mode: Playback
6. Confirm the play back signal recorded in step 3 becomes
adjustable level as follows.
If these levels are not adjustable level, adjust the RV301 (L-
CH) and RV351 (R-CH) on the MAIN board to repeat steps 4
and 5.
Adjustable level:
CN301 PB level: 47.2 to 53.0 mV (–24.3 to –23.3 dB)
Adjustment Location: MAIN board
REC BIAS ADJUSTMENT DECK B
Procedure:
In the MC test mode, the “REC memory mode” is convenient for
this adjustment. In the “REC memory mode” , when the REC starts
the input signal FUNCTION is switched to VIDEO automatically.
When the REC stops, the tape returns near to the recording start
position.
1. Press MD (VIDEO) button to select VIDEO. (This step is not
necessary if the above test mode has already been set)
2. Insert a tape into deck B.
3. Afterpress[REC PAUSE/START] button,press[REC PAUSE/
START] button, then recording start.
4. Mode: Record
5. Mode: Playback
6. Confirm the playback signal recorded in step 3 becomes
adjustable level as follows.
If these levels are not adjustable level, adjust the RV304 (L-
CH) and RV354 (R-CH) on the MAIN board to repeat steps 4
and 5.
Adjustable level: Playback output of 315 Hz to playback output
of 10 kHz: ±1.0 dB
Adjustment Location: MAIN board
REC LEVEL ADJUSTMENT DECK B
Procedure:
In the MC test mode, the “REC memory mode” is convenient for
this adjustment. In the “REC memory mode” , when the REC starts
the input signal FUNCTION is switched to VIDEO automatically.
When the REC stops, the tape returns near to the recording start
position.
1. Press MD (VIDEO) button to select VIDEO. (This step is not
necessary if the above test mode has already been set)
2. Insert a tape into deck B.
3. Afterpress[REC PAUSE/START] button,press[REC PAUSE/
START] button, then recording start.
attenuator
set
MAIN board
MD/VIDEO (AUDIO) IN (J750)
1) 315 Hz
2) 10 kHz 50 mV (–23.8 dB)



600 Ω
blank tape
CN-123
AF OSC
+
–
set
recorded
portion
MAIN board
CN301 Pin
2 (GND)
MAIN board
CN301
Pin
1 (L-CH)
Pin
3 (R-CH) level meter
set
MAIN board
MD/VIDEO (AUDIO) IN (J750)
315 Hz, 50 mV (–23.8 dB) blank tape
CS-123
600
Ω
attenuator
AF OSC
+
–
set
recorded
portion
MAIN board
CN301 Pin
2 (GND)
MAIN board
CN301
Pin
1 (L-CH)
Pin
3 (R-CH) level meter
TAPE SPEED
ADJUSTMENT
RV1002 RV1001
(NORMAL) (HIGH)
CN1001
         
– SW BOARD (Component Side) –
– MAIN BOARD (Component Side) –
REC LEVEL
ADJUSTMENT
REC BIAS ADJUSTMENT
CN301
31
(R-CH)
(R-CH)
(L-CH)
(L-CH)
RV301
RV351
RV304 RV354
      
      
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