Sony HCDXPX-1 Service manual
HCD-CPX1
SERVICE MANUAL
Ver 1.0 2003.04
HCD-CPX1 is the Amplifier, CD
player, Tape Deck and Tuner section
in CMT-CPX1.
CD
Section
Tape deck
Section
US Model
Canadian Model
E Model
Austr alian Model
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM55A-K6BD44S
Base Unit Name BU-K6BD44S
Optical Block Name KSM-213DCP
Optical Pick-up Name KSS-213D
Model Name Using Similar Mechanism NEW
Amplifier section
For the U.S. model
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 4-ohm loads, both channels driven, from
100 – 10,000 Hz: rated 70 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
North American model:
Continuous RMS power output (reference):
Total harmonic distortion less than 0.9% (4 ohms at
1kHz, 35 W)
Other models:
The following measured at 220 – 240 V AC, 50/60 Hz
DIN power output (rated): 55 + 55 W
70 + 70 W
(4 ohms at 1 kHz, 10%
THD)
(4 ohms at 1 kHz, DIN)
SPECIFICATIONS
Continuous RMS power output (reference):
Inputs
MD (VIDEO) IN (phono jacks):
Outputs
CD DIGITAL OUT: Optical Wavelength:
PHONES: accepts headphones with
SPEAKER: accepts impedance of
CD player section
Laser Semiconductor laser
Frequency response CD: 2 Hz – 20 kHz
Wavelength 780 – 790 nm
70 + 70 W
(4 ohms at 1 kHz, 10%
THD)
Sensitivity 450/250 mV,
impedance 47 kilohms
660 nm
an impedance of 8 ohms or
more
4ohms
(CD: λ=780 nm)
Emission duration:
continuous
Tape deck section
Recording system 4-track 2-channel stereo
Frequency response 50 – 13,000 Hz (± 3 dB),
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
North American model: 87.5 – 108.0 MHz
Other models: 87.5 – 108.0 MHz (50 kHz
Antenna FM wire antenna
Antenna terminals 75 ohms unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range
Pan-American model: 530 – 1,710 kHz
using Sony TYPE I
cassettes
(100 kHz step)
step)
(with the tuning interval
set at 10 kHz)
Other models: 530 – 1,710 kHz
Antenna AM loop antenna, external
Intermediate frequency 450 kHz
General
Power requirements
North American model: 120 V AC, 60 Hz
Australian model: 230 – 240 V AC, 50/60 Hz
Korean model: 220 V AC, 60 Hz
Other models: 220 – 240 V AC, 50/60 Hz
Power consumption: 50 W
Dimensions (w/h/d):
Mass:
Design and specifications are subject to change
without notice.
(with the tuning interval
set at 10 kHz)
531 – 1,602 kHz
(with the tuning interval
set at 9 kHz)
antenna terminal
Approx. 174 × 240.5 × 291
mm
Approx. 4.3 kg
COMPACT DISC DECK RECEIVER
9-877-173-01 Sony Corporation
2003D0500-1 Home Audio Company
C 2003.04 Published by Sony Engineering Corporation
HCD-CPX1
r
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.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any 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 V OM
or battery-operated A C voltmeter . 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 2 V AC range are suitable. (See Fig. A)
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
This appliance is
classified as a CLASS 1
LASER product. This
label is located on the
rear exterior.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the leadfree 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.
To Exposed Metal
Parts on Set
1.5 k
0.15 µF
Fig. A. Using an AC voltmeter to check AC leakage.
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.
Ω
Earth Ground
AC
voltmete
(0.75 V)
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
2
TABLE OF CONTENTS
HCD-CPX1
1. SERVICING NOTES............................................... 4
2. GENERAL
Location of Controls ....................................................... 8
Setting the Clock............................................................. 9
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 10
3-2. Case ................................................................................. 11
3-3. Front Panel Section ......................................................... 11
3-4. TC Board, Mechanical Deck .......................................... 12
3-5. MAIN Board ................................................................... 12
3-6. Tuner Unit ....................................................................... 13
3-7. CD Mechanism Deck (CDM55A-K6BD44S)................ 13
3-8. Loading Board................................................................. 14
3-9. Cam (CDM55) ................................................................ 14
3-10. Base Unit (BU-K6BD44S) ............................................. 15
3-11. Motor Gear Assy (Sled) (M102), BD Board .................. 15
3-12. Optical Pick-up (KSS-213D) .......................................... 16
4. TEST MODE.............................................................. 17
5. ELECTRICAL ADJUSTMENTS
Deck Section ................................................................... 19
CD Section ...................................................................... 20
6. DIAGRAMS
6-1. Block Diagram – CD Servo Section –........................... 21
6-2. Block Diagram – TUNER/TAPE DECK Section – ...... 22
6-3. Block Diagram – MAIN Section – ................................ 23
6-4. Block Diagram
– DISPLAY/POWER SUPPLY Section – ...................... 24
6-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 25
6-6. Printed Wiring Board – BD Board – ............................. 26
6-7. Schematic Diagram – BD Board – ................................ 27
6-8. Printed Wiring Board – TC Board – .............................. 28
6-9. Schematic Diagram – TC Board –................................. 29
6-10. Printed Wiring Boards
– LOADING/MAIN Boards – ....................................... 31
6-11. Schematic Diagram – MAIN Board (1/2) – .................. 32
6-12. Schematic Diagram
– LOADING/MAIN (2/2) Boards – ............................... 33
6-13. Printed Wiring Board – AMP Board – .......................... 34
6-14. Schematic Diagram – AMP Board – ............................. 35
6-15. Printed Wiring Boards
– BACK LIGHT/LCD/SWITCH Boards – .................... 36
6-16. Schematic Diagram
– BACK LIGHT/LCD/SWITCH Boards – ................... 37
6-17. Printed Wiring Boards
– HP/SP OUT/POWER Boards – .................................. 38
6-18. Schematic Diagram
– HP/SP OUT/POWER Boards – ................................. 39
6-19. IC Pin Function Description ........................................... 44
7. EXPLODED VIEWS
7-1. Case Section .................................................................... 47
7-2. Front Panel Section-1...................................................... 48
7-3. Front Panel Section-2...................................................... 49
7-4. Lid (TC) Section ............................................................. 50
7-5. Chassis Section-1 ............................................................ 51
7-6. Chassis Section-2 ............................................................ 52
7-7. Chassis Section-3 ............................................................ 53
7-8. CD Mechanism Deck Section
(CDM55A-K6BD44S) .................................................... 54
7-9. Base Unit (BU-K6BD44S) ............................................. 55
8. ELECTRICAL PARTS LIST ............................... 56
3
HCD-CPX1
)
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 objectiv e lens.
MODEL IDENTIFICATION
– Back Panel –
Part No.
Model Name Part No.
US and Canadian models 4-244-015-1
Singapore model 4-244-015-2
Australian model 4-244-015-3
Korean model 4-244-015-4
[]
[]
[]
[]
NOTE ON INSTALLING AND REMOVING THE TAPE MECHANICAL DECK
To prevent four screws of +BVTP 3 × 8 TYPE 2 TT (B), that fix the mechanical deck to the front panel, from being magnetized, must not
use a magnetic screwdriver.
screw +BVTP 3 × 8 TYPE 2 TT (B
non-magnetic screwdriver
screw +BVTP 3 × 8 TYPE 2 TT (B)
4
TAPE MECHANICAL DECK SERVICE POSITION
l
Set up the service position with putting an insulator under the mechanical deck as the figure shown below.
tape mechanical deck
insulator
HCD-CPX1
CD MECHANISM DECK SERVICE POSITION
Set up the service position for the CD mechanism deck with disassembling the entire set as the figure shown below.
main board
AMP section
front pane
CD mechanism deck
5
HCD-CPX1
NOTE ON LEADING THE WIRE (FLAT TYPE) (9 CORE)
Lead the wire (flat type) (9 core) properly to prevent the wire from coming out from the right side of the guides on the sub panel or sagging
inside of the lid.
lid (TC)
guides
wire (flat type) (9 core)
sub panel
NOTE ON INSTALLING THE HP BOARD
Note: Follow the assembly procedure in the numerical order given.
2
HP board
3
three screws
(BVTP2.6
×
8)
1
Lead the cable trough out
the ditch of the HP board
to prevent the cable from
contacting with the CD
mechanism deck.
HP board
cable
ditch
6
CLINCHING THE WIRE (FLAT TYPE) (21 CORE)
c
AMP board
HCD-CPX1
heat sink
Clinch the wire (flat type) (21 core)
to prevent the wire from contacting with
the heat sink of the AMP board.
HANDLING TWO CABLES FROM THE SUB POWER AND THE SWITCHING REGULA TOR TO THE MAIN BOARD
Note: Fix two cables with the lead pin and the fabric non woven (10 – 20),
or they may sag and contact with the CD mechanism deck.
cable from the switching
regulator to the main board
cable from the sub power
to the main board
lead pin
fabric no woven (10 – 20)
Note: Do not reuse the current fabri
because it may fall off.
7
HCD-CPX1
• LOCATION OF CONTROLS
– Front View –
SECTION 2
GENERAL
This section is extracted from
instruction manual.
ALPHABETICAL ORDER
A – Q
BASS +/– wa
CD SYNCHRO qa
Disc tray ql
DISPLAY wf
Display window 3
DSG ws
FM MODE qs
FUNCTION 0
PHONES jack qk
PLAY MODE/DIRECTION wd
1
wf
wd
ws
wa
w;
ql
qk
R – Z
Remote sensor 2
REPEAT qs
TREBLE +/– w;
TUNER/BAND 9
TUNING MODE wd
TUNING +/– qd
VOLUME +/– qf
2
3
BUTTON DESCRIPTIONS
?/1 (power) 1
TAPE Z (eject) 4
TAPE nN (play) 5
TAPE x (stop) 6
TAPE X (pause) 7
TAPE z REC (record) 8
lm/ML (rewind/fast
forward, go back/go forward)
qd
CD NX (play pause) qg
CD x (stop) qh
CD Z (eject) qj
4
5
6
7
8
9
0
qa
qs
qd
qf
qg
qh
qj
8
– Remote Control –
HCD-CPX1
ALPHABETICAL ORDER
A – E
CD ws
CLEAR w;
CLOCK/TIMER SELECT 2
CLOCK/TIMER SET 3
DISPLAY 6
ENTER qd
EQ qh
EQ + qg
EQ – ql
wg
wf
wd
ws
wa
w;
F – Z
FUNCTION wg
PLAY MODE wa
REPEAT qs
SLEEP 1
TAPE wf
TUNER/BAND wd
TUNER MEMORY 5
TUNING MODE wa
TUNING +/– 9
VOL +/– qk
2 3
14
BUTTON DESCRIPTIONS
?/1 (power) 4
TAPE nN (play) 7
TAPE x (stop) 8
CD NX (play pause) 0
CD x (stop) qa
./> (go back/go forward)
qf
m/M (rewind/fast forward)
qj
5
6
7
8
9
0
qa
qs
qd
qf
ql
qk
Setting the clock
1 Press ?/1 to turn on the system.
2 Press CLOCK/TIMER SET.
3 Press . or > repeatedly to set the
hour.
4 Press ENTER.
5 Press . or > repeatedly to set the
minute.
6 Press ENTER.
The clock starts working.
To adjust the clock
1 Press CLOCK/TIMER SET.
2 Press . or > until “CLOCK” appears,
then press ENTER.
3 Do the same procedures as step 3 to 6
above.
Note
The clock is not displayed in Power Saving Mode.
qg
qh
qj
9
HCD-CPX1
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
Set
3-2. CASE
(Page 11)
3-3. FRONT PANEL SECTION
(Page 11)
SECTION 3
DISASSEMBLY
3-4. TC BOARD, MECHANICAL DECK
(Page 12)
3-5. MAIN BOARD
(Page 12)
3-6. TUNER UNIT
(Page 13)
3-7. CD MECHANISM DECK
(CDM55A-K6BD44S)
(Page 13)
3-8. LOADING BOARD
(Page 14)
3-9. CAM (CDM55)
(Page 14)
3-10. BASE UNIT (BU-K6BD44S)
(Page 15)
3-11. MOTOR GEAR ASSY (SLED) (M102),
BD BOARD
(Page 15)
10
3-12. OPTICAL PICK-UP (KSS-213D)
(Page 16)
Note: Follow the disassembly procedure in the numerical order given.
)
HCD-CPX1
3-2. CASE
1
two case screws
3
4
case
3
2
three screws
(BVTP3
1
two case screws
×
6)
3-3. FRONT PANEL SECTION
2
ground wire lead
6
front panel section
5
four screws
(BVTP3
1
screw
(BVTP3
×
6)
3
wire (flat type) (19 core)
(CN221)
×
6)
3
wire (flat type) (9 core
(CN403)
3
wire (flat type) (19 core)
(CN402)
4
connector
(CN102)
11
HCD-CPX1
)
s
3-4. TC BOARD, MECHANICAL DECK
6
four screws
(BVTP3
Note: Must not use a magnetic
7
ground wire lead
×
8)
screwdriver to prevent the screws
from being magnetized.
2
wire (flat type) (8 core)
(CN602)
3
connector
1
wire (flat type) (19 core)
(CN603)
4
three screw
(PTPWH 2)
5
TC board
3-5. MAIN BOARD
7
6
wire (flat type) (21 core)
(CN101)
two connectors
(CN301, CN401)
3
back panel
8
mechanical deck
1
screw
(BVTP3
×
6)
2
screw
(BVTP3
1
two screws (BVTP3 × 6)
2
screw (BVTP3 × 8)
1
three screws (BVTP3 × 6
×
8)
12
7
connector
(CN201)
6
wire (flat type)
(21 core)
(CN202)
5
6
wire (flat type)
(11 core)
(CN211)
8
4
two screws (BVTP3 × 6)
main board
3-6. TUNER UNIT
)
)
2
two screws
(BVTP3
×
6)
1
connector
(CN990)
3
bracket
5
two screws
(BVTP3
HCD-CPX1
×
6)
2
two screws
(BVTP3
3-7. CD MECHANISM DECK (CDM55A-K6BD44S)
1
two claws
2
CD lid
9
CD mechanism deck (CDM55A-K6BD44S)
6
tuner unit
4
wire (flat type) (11 core
×
6)
3
screw
4
two bosses
8
wire (flat type) (21 core
(CN1101)
6
two claws
7
5
13
HCD-CPX1
)
3-8. LOADING BOARD
3
Pull the tray (CDM55D) pushing B.
B
2
belt (CDM55)
A
1
Rotate the gear(A) in
the direction of arrow
A
.
3-9. CAM (CDM55)
2
lever (SW)
1
torsion spring
4
two screws
(BTP2.6
6
×
8)
gear (A)
3
spacer (55)
4
pulley (LDG)
5
loading board
5
gear (B)
7
roller
8
cam (CDM55
14
3-10. BASE UNIT (BU-K6BD44S)
)
2
two screws
(BTTP M2.6)
3
two stoppers (BU)
5
two insulators
6
base unit (BU-K6BD44S)
1
two floating screws
(PTPWHM2.6)
5
two insulators
HCD-CPX1
4
3-11. MOTOR GEAR ASSY (SLED) (M102), BD BOARD
6
gear (A)
5
claw
8
two screws
×
3)
(M2
7
gear (B)
1
Remove two
solders.
4
BD board
2
1
Remove two solders.
3
wire (flat type) (16 core
(CN102)
9
motor gear assy (SLED)
(M102)
15
HCD-CPX1
3-12. OPTICAL PICK-UP (KSS-213D)
3
Remove the optical pick-up
(KSS-213D) in the direction
of arrow
B
B
.
2
sled shaft
A
1
Slide the lever
in the direction of arrow
A
.
16
SECTION 4
TEST MODE
HCD-CPX1
[CMN (MC) TEST MODE]
•This mode is used to check operations of Amplifier.
Procedure:
1. Press the ?/1 key to turn the power ON.
2. Press three keys of [DSG], [REPEAT] and [DISPLAY]
simultaneously.
3. When the CMN (MC) test mode is activated, “s” blinks on
the liquid crystal display.
4. Turn the [BASS] knob counterclockwise, “TONE MIN” is
displayed on the liquid crystal display. Turn the [BASS] knob
clockwise, “TONE MAX” is displayed on the liquid crystal
display.
Turn the [TREBLE] knob clockwise or counterclockwise,
“TONEFLAT” is displayed on the liquid crystal display.
Turn the [VOLUME] knob counterclockwise, “VOL MIN” is
displayed on the liquid crystal display. Turn the [VOLUME]
knob clockwise, “VOL MAX” is displayed on the liquid crystal
display.
5. To release this mode, press the ?/1 key.
[PANEL (GC) TEST MODE]
•This mode is used to check the liquid crystal display, LED,
model, destination, software version and key.
Procedure:
1. Press the ?/1 key to turn the power ON.
2. Press three keys of [DSG], [PLAY MODE] and [DISPLAY]
simultaneously.
3. Liquid crystal display and LEDs are all turned on.
4. When you want to enter the model, destination and version
display mode, press the [REPEAT] key. The model and
destination are displayed alternately on the liquid crystal display.
5. Each time [REPEAT] key is pressed, the display changes starting
from MD version, MC version, GC version, CD version, CDD
version, CDMA version, CDMB version, BDA version, BDB
version, ST version, TA version, TM version, and TC version
this order, and returns to the MD version display on the liquid
crystal display.
6. When
7. Press the [PLAY MODE] key, the key check mode is activated.
8. In the key check mode, the liquid crystal display displays “K0”.
9. To release this mode, press three keys in the same manner as
[FUNCTION] key is pressed while the version numbers
are being displayed except model and destination, year, month
and day of the software creation display. When [FUNCTION]
key is pressed again, the display returns to the software version
display. When [REPEAT] key is pressed while year, month and
day of the software creation are being displayed, the year, month
and day of creation of the software versions are displayed on
the liquid crystal display in the same order of version display.
Each time a key is pressed, “K” value increases. Ho wever , once
a key is pressed, it is no longer taken into account.
step 2, or disconnect the power cord.
[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 the ?/1 key to turn the power ON.
2. Press three keys of ?/1 , x (CD) and x (TAPE) simultaneously .
3. The liquid crystal display becomes blank instantaneously, and
the set is reset.
[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. Press the ?/1 key to turn the power ON.
2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of Z (CD), x (CD) and [DISPLAY]
simultaneously.
4. After the “STANDBY” display blinks, “LOCK” is displayed
on the liquid crystal display, and the ship mode is set.
[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. Press the ?/1 key to turn the power ON.
2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of Z (CD), CD NX and [DISPLAY]
simultaneously.
4. After the “STANDBY” display blinks, “LOCK” is displayed
on the liquid crystal display, and the ship mode is set.
[CD TRAY LOCK MODE]
• This mode is used to unable to take sample disc out of tray in
the shop.
Procedure:
1. Press the ?/1 key to turn the power ON.
2. Press the [FUNCTION] key to select “CD”.
3. While pressing the Z (CD) key, press the x (CD) key fo r 5
seconds.
4. The message “LOCKED” is displayed on the liquid crystal
display and the tray is locked. (Even if pressing the
key, the message “LOCKED” is displayed on the liquid crystal
display and the tray is locked)
5. To release from this mode, pressing the Z (CD) key, press the
x (CD) key for 5 seconds.
6. The message “UNLOCKED” is displayed on the liquid crystal
display and the tray is unlocked.
Z (CD)
[TUNER STEP CHANGE MODE]
(Singapore, Korean and Australian models)
•A step of AM channels can be changed over between 9 kHz and
10 kHz.
Procedure:
1. Press the ?/1 key to turn the power ON.
2. Press the [FUNCTION] key to select “TUNER”, and press the
[BAND] key to select “AM”.
3. Press the ?/1 key to turn the power OFF.
4. Press two keys of ?/1 and M L simultaneously.
5. The message “AM 9K STEP” or “AM 10K STEP” is displayed
on the liquid crystal display, and thus the channel step is changed
over.
[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 the ?/1 key to turn the power ON.
2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of [DSG] , [REPEAT] and x (T APE) sim ul-
taneously.
4. Press the M L key to move the optical pick-up to outside
track, or press the l m key to inside track.
5. To release this mode, press the ?/1 key.
17
HCD-CPX1
[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 ?/1 key to turn the power ON.
2. Press the [FUNCTION] key to select “CD”.
3. Set disc on the tray and set tape into the deck.
4. Press the [REPEAT] key to “REPEAT” off.
5. Press three keys of [DSG], [PLAY MODE] and x (TAPE)
simultaneously.
6. Aging operations of CD and tape are started at the same time.
7. To release this mode, press the ?/1 key.
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.
Aging mode sequence (CD section) :
Start
Disc chucking
TOC read
3. Tape Deck Section
The sequence during the aging mode is following as below.
If an error occurred, stop display that step.
Display at the aging mode is “TAPE AG—”.
Aging mode sequence (Tape deck section) :
Start
Rewind the tape
Shut off
FWD play the tape
2 minutes
Fast forward the tape
Shut off or 20 seconds
REV play the tape
2 minutes
[CD ERROR CODE MODE]
• This mode can be used for error display of CD section.
Procedure:
1. Press the ?/1 key to turn the power ON.
2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of [DSG], [REPEAT] and X simultaneously.
Note: Error code is not displayed on the liquid crystal display.
[CD SERVO TEST MODE]
• This mode used to ckeck operation of optical pick-up.
Procedure:
1. Press the ?/1 key to turn the power ON.
2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of [DSG], [PLAY MODE] and X simultaneously .
4. When the CD servo test mode is activated, optical pick-up moves.
Play first track for 2 seconds
Play last track for 2 seconds
Open the disc tray
Close the disc tray
[5 REPEAT OFF 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 ?/1 key to turn the power on.
2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of [DSG], M L and x (TAPE)
simultaneously.
4. When the 5 repeat off mode is activated, “LIMIT OF” is
displayed on the liquid crystal display.
[CHANGE-OVER FUNCTION OF EXTERNAL INPUT]
• This mode is used to enable function of external input to change
over between MD and VIDEO.
Procedure:
1. Set to standby state.
2. Press two keys of ?/1 and [FUNCTION] simultaneously.
3. The function of external input changes over to MD or VIDEO.
18
set
MAIN board
MD (VIDEO) IN (J101)
315 Hz, 34.6 mV (–27 dB)
blank tape
CS-123
600
Ω
attenuator
AF OSC
SECTION 5
(R-CH)
(L-CH)
RV603
(R-CH)
RV602
(L-CH)
RV652
RV653
– TC BOARD (Component Side) –
REC Level Adjustment
REC Bias
Adjustment
ELECTRICAL ADJUSTMENTS
HCD-CPX1
DECK SECTION
Note: Confirm each contents of this section first of all. If the results are
not satisfied, do the adjustment.
1. The adjustments should be performed with the rated power supply
voltage unless otherwise noted.
2. The adjustments should be performed in the order given in this service
manual.
3. The adjustments should be performed for both L-CH and R-CH.
0 dB=0.775 V
REC BIAS ADJUSTMENT
Procedure:
1. Press the [FUNCTION] key to select “MD” or “VIDEO”.
2. Set the tape into the deck.
3. After pressi ng z REC key, press X (TAPE) key to start
recording.
4. Mode: Record
MAIN board
MD (VIDEO) IN jack (J101)
L-CH, R-CH
34.6 mV (– 27 dB)
600
Ω
set
blank tape
CN-123
AF OSC
1) 315 Hz
2) 10 kHz
attenuator
REC LEVEL ADJUSTMENT
Procedure:
1. Press the [FUNCTION] key to select “MD” or “VIDEO”.
2. Set the tape into the deck.
3. After pressi ng z REC key, press X (TAPE) key to s tart
recording.
4. Mode: Record
5. Mode: Playback
recorded
portion
set
SP OUT board
SPEAKER terminals (J701)
L-CH, R-CH
level meter
+
–
5. Mode: Playback
recorded
portion
6. Confirm the playback signal recorded in step 3 becomes
adjustable level as follows.
If these levels are out of specified values, adjust the RV653 (LCH) and R V603 (R-CH) on the TC board to repeat steps 4 and
5.
Specified values: Playback output of 315 Hz to playback
output of 10 kHz: ± 2.0 dB
Adjustment Location: TC board
level meter
set
SP OUT board
SPEAKER terminals (J701)
L-CH, R-CH
6. Confirm the play back signal recorded in step 3 becomes
adjustable level as follows.
If these levels are out of specified v alues, adjust the RV652 (LCH) and RV602 (R-CH) on the TC board to repeat steps 4 and
+
–
5.
Specified values: Playback level 30.8 to 38.8 mV (–28 to –26 dB)
Adjustment Location: TC board
19
HCD-CPX1
V
CD SECTION
Note:
1. CD Block is basically constructed to operate without
adjustment.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10 MΩ 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.
5. Check the focus bias check when optical pick -up block is
replaced.
FOCUS BIAS CHECK
oscilloscope
(DC range)
BD board
TP (RFAC)
TP (VC)
Procedure :
1. Connect oscilloscope to TP (RFAC) and TP (VC) on the BD
board.
2. Press the ?/1 button to turn the power ON, and press the Z
(CD) button to open the CD disc tray.
3. Set disc (YEDS-18) on the tray and press the CD NX button
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.
+
–
s
Checking Location:
– BD BOARD (Conductor Side) –
TP
(VC)
TP
(RFAC)
IC103
IC101
IC102
VOLT/DIV: 200 m
TIME/DIV: 500 ns
level:
0.9
±
0.4 Vp-p
20
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