Sony HCD-VC1 Service manual
HCD-VC1
SERVICE MANUAL
Ver 1.0 2001.08
HCD-VC1 is the Amplifier, Video CD/CD
player, Tape Deck and Tuner section in
CMT-VC1.
CD
Section
Tape deck
Section
SPECIFICATIONS
Amplifier section
The following measured at 230 V AC, 60 Hz
DIN power output (rated): 27 + 27 W
Continuous RMS power output (reference):
The following measured at 220 V AC, 60 Hz
DIN power output (rated): 23 + 23 W
Continuous RMS power output (reference):
Inputs
AUDIO IN MD (VIDEO) (phono jacks):
Outputs
OPTICAL DIGITAL OUT (CD):
VIDEO OUT (phono jack):
PHONES (stereo minijack):
(6 ohms at 1 kHz, DIN)
32 + 32 W
(6 ohms at 1 kHz, 10%
THD)
(6 ohms at 1 kHz, DIN)
26 + 26 W
(6 ohms at 1 kHz, 10%
THD)
Sensitivity 500/250 mV,
impedance 47 kilohms
Optical
max. output level 1 Vp-p,
unbalanced, Sync
negative, load impedance
75 ohms
Accepts headphones with
an impedance of 8 ohms
or more
VIDEO CD/CD player section
System Compact disc and digital
Laser Semiconductor laser
Wavelength 780 - 790 nm
Video color system format
OPTICAL DIGITAL OUT (CD)
(Square optical connector jack, rear panel)
Wavelength 660 nm
Output Level –18 dBm
Tape player section
Recording system 4-track 2-channel stereo
Frequency response 50 - 13,000 Hz (±3 dB),
E Model
Model Name Using Similar Mechanism HCD-VP100
CD Mechanism Type CDM55F-K6BD42A
Model Name Using Similar Mechanism HCD-VP100
Tuner section
audio system
(λ = 780 nm)
Emission
duration: continuous
NTSC, PAL
using a Sony TYPE I
cassette
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 - 108.0 MHz
Antenna FM wire antenna
Antenna terminals 75 ohm unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range 530 - 1,710 kHz
Antenna AM loop antenna, external
Intermediate frequency 450 kHz
(50-kHz step)
(with the tuning interval
set at 10 kHz)
531 - 1,602 kHz
(with the tuning interval
set at 9 kHz)
antenna terminal
– Continued on next page –
MICRO Hi-Fi COMPONENT SYSTEM
9-873-256-01 Sony Corporation
2001H0500-1 Home Audio Company
C 2001.8 Shinagawa Tec Service Manual Production Group
HCD-VC1
General
Power requirements 110 - 120 V or 220 -
Power consumption 75 W
Dimensions (w/h/d) Approx. 191 × 253 ×
Mass Approx. 5.6 kg
Design and specifications are subject to change
without notice.
240 V AC , 50/60 Hz
Adjustable with voltage
selector
346 mm incl. projecting
parts and controls
TABLE OF CONTENTS
1. GENERAL
Parts Identification .......................................................... 4
Setting the Time .............................................................. 5
2. DISASSEMBLY
2-1. Disassembly Flow ........................................................... 7
2-2. Upper Cover Sub Assy.................................................... 8
2-3. CD Lid ............................................................................. 8
2-4. Front Panel Section ......................................................... 9
2-5. Mech Deck (Tape)........................................................... 9
2-6. CD Mechanism Deck (CDM55F-K6BD42A),
MPEG Board ................................................................... 10
2-7. Base Unit (BU-K6BD42A)............................................. 10
2-8. Loading Board................................................................. 11
2-9. Cam (CDM55) ................................................................ 11
3. TEST MODE.............................................................. 12
4. ELECTRICAL ADJUSTMENTS
Deck Section ................................................................... 13
CD Section ...................................................................... 13
5. DIAGRAMS
5-1. Block Diagram – CD SERVO Section – ....................... 14
5-2. Block Diagram – MAIN Section – ................................ 15
5-3. Block Diagram
– DISPLAY/POWER SUPPLY Section – ...................... 16
5-4. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 17
5-5. Printed Wiring Board – CD Board – ............................. 18
5-6. Schematic Diagram – CD Board – ................................ 19
5-7. Printed Wiring Board – TC Board –.............................. 20
5-8. Schematic Diagram – TC Board – ................................. 21
5-9. Schematic Diagram – MAIN Board (1/2) – .................. 22
5-10. Schematic Diagram – MAIN Board (2/2) – .................. 23
5-11. Printed Wiring Board – MAIN Board – ........................ 24
5-12. Printed Wiring Boards
– SWITCH/I/O SWITCH Boards – ................................ 26
5-13. Schematic Diagram
– SWITCH/I/O SWITCH Boards – ................................ 27
5-14. IC Pin Function Description ........................................... 28
5-15. Printed Wiring Boards – HEADPHONE/
LCD/LOADING /VIDEO Boards – ............................... 29
5-16. Schematic Diagram – HEADPHONE/
LCD/LOADING /VIDEO Boards – ............................... 29
5-17. Printed Wiring Board – POWER Board – ..................... 30
5-18. Schematic Diagram – POWER Board –........................ 31
6. EXPLODED VIEWS
6-1. Upper Cover, Tape Mech Deck Section ......................... 34
6-2. Front Panel Section ......................................................... 35
6-3. Chassis Section ............................................................... 36
6-4. CD Mechanism Deck (CDM55F-K6BD42A)................ 37
6-5. Base Unit (BU-K6BD42A)............................................. 38
7. ELECTRICAL PARTS LIST ............................... 39
2
HCD-VC1
Connect jig (extension cable J-2501-011-B)
to the MAIN board (CN101) and VCD block (CN502).
MAIN board
VCD block
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 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
other than those specified herein may result in hazardous radiation exposure.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
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.
SERVICE POSITION
In checking the CD block, prepare jig (extension cable J-2501011-B).
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
The following caution label is located inside the unit.
CAUTION :
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
ADVARSEL :
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSAETTELSE
FOR STRÅLING.
VORSICHT :
ABDECKUNG GEÖFFNET UND SICHEREITSVERRIEGELUNG
ÜBERBRÜCKT. NICHT DEM STRAHL AUSSETZEN.
VARO! :
TIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
VARNING :
OCH SPÄRREN ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN.
ADVERSEL :
SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.
VIGYAZAT! :
GÁRVESZÉLY! KERÜLJE A BESUGÁRZÁST!
INVISIBLE LASER RADIATION WHEN OPEN AND
USYNLIG LASERSTRÅLING VED ÅBNING NÅR
UNSICHTBARE LASERSTRAHLUNG, WENN
AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT-
OSYNLING LASERSTRÅLING NÄR DENNA DEL ÄR ÖPPNAD
USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG
A BURKOLAT NYITÁSAKOR LÁTHATATLAN LÉZERSU-
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON THE SCHEMATIC DIA GRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.
3
HCD-VC1
SECTION 1
GENERAL
Parts Identification
The items are arranged in alphabetical order.
Refer to the pages indicated in parentheses () for details.
Main unit
– Front View –
This section is extracted from
instruction manual.
w;
ql
CD cover qa (9, 21)
Shown open in the illustration
above.
CD SYNC 9 (16, 17)
CD u qk (9-13, 26)
CD x qj (9-13, 24)
CD .m/M> qh (10,
11)
CD Z qg (9-11)
DSG indicator qd (19)
FUNCTION 7 (9, 11, 12, 14-16,
21, 24)
12
PBC indicator qf (10, 26)
PHONES jack qs (21)
Remote sensor q;
TAPE PAUSE X 5 (15-17)
TAPE Y 2 (15-17)
TAPE x 3 (15-17, 24)
TAPE m/M 4 (15)
TUNER/BAND w; (14, 24)
VOLUME 8 (20)
4
5
qg qdqj qhqk
qf
63
7
8
9
q;
qa
qs
BUTTON DESCRIPTIONS
@/1 (power) 1 (7, 14, 18, 20, 21)
Z 6 (15)
+/— ql (14)
4
4
HCD-VC1
– Rear View –
1
2
3
4
1 AM ANTENNA terminals
2 AUDIO IN MD (VIDEO) jacks
3 CD DIGITAL OUT OPTICAL connector
4 SPEAKER terminals
5 SYSTEM SELECT switch
6 VIDEO OUT jack
7 VOLTAGE SELECTOR switch
8 AC power cord
5
6
7
8
Setting the time
1
Turn on the system.
2
Press CLOCK/TIMER SET on the
remote.
If you are setting the clock for the first time,
go to step 5.
3
Press +/— on the remote repeatedly
until SET CLOCK appears in the
display.
4
Press ENTER on the remote.
The hour indication flashes.
5
Press +/— on the remote repeatedly to
set the hour.
6
Press ENTER on the remote.
The minute indication flashes.
7
Press +/— on the remote repeatedly to
set the minute.
8
Press ENTER on the remote.
The clock will begin operating.
To reset the system clock
Start over from step 1.
5
HCD-VC1
5
Remote Control
e;
wl
wk
wj
wh
wg
wf
wd
ws
wa
w;
ql
qk
123
`/1
y
O
X
4
5
6
7
8
9
q;
qa
qs
qd
qf
qg
CD ql (9, 11)
CLOCK/TIMER SELECT 4
(18, 20)
CLOCK/TIMER SET 5 (8, 17,
20)
DIR MODE wj (15-17)
DISPLAY wk (12)
DSG qj (19)
ENTER 8 (8, 14, 17, 20)
MEMORY wl (14)
NEXT qa (10)
Numeric buttons wh (10, 11)
ON SCREEN 7 (13)
PREV wd (10)
REC z 9 (16)
REPEAT qf (10, 11)
RETURN O qs (10)
SLEEP e; (19)
SLOW y wf (9)
STEREO/MONO 6 (14, 24)
TAPE qh (15)
TUNER BAND qk (14)
TUNING MODE/PLAY MODE
w; (9, 11-14, 24)
TV/VIDEO 1 (7)
TV @/1 2 (7)
VOLUME +/— qg (20)
BUTTON DESCRIPTIONS
N ws (9-13, 15, 26)
X wa (9, 11, 15-17)
x qd (9-13, 15-17)
. wd (10-12, 17)
> qa (10-12, 17)
m wg (10, 11, 14, 15)
M 0 (10, 11, 14, 15)
@/1 (power) 3 (7, 14, 18, 20, 21)
+ qa (8, 14, 18, 20)
— wd (8, 14, 18, 20)
qj
qh
6
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
Set
HCD-VC1
SECTION 2
DISASSEMBLY
2-2. UPPER COVER SUB ASSY
(Page 8)
2-3. CD LID
(Page 8)
2-4. FRONT PANEL SECTION
(Page 9)
2-5. MECH DECK (TAPE)
(Page 9)
2-6. CD MECHANISM DECK
(CDM55F-K6BD42A),
MPEG BOARD
(Page 10)
2-7. BASE UNIT
(BU-K6BD42A)
(Page 10)
2-8. LOADING BOARD
(Page 11)
2-9. CAM (CDM55)
(Page 11)
7
HCD-VC1
Note: Follow the disassembly procedure in the numerical order given.
2-2. UPPER COVER SUB ASSY
3
upper cover sub assy
2
two case screws
1
four screws
(BTP3
×
8)
2-3. CD LID
3
CD lid
2
two claws
2
two case screws
1
tray
Note: Open the tray by supplying the power.
8
2-4. FRONT PANEL SECTION
)
1
1
flexible flat (20core) cable
(CN804)
1
flexible flat (18core) cable
(CN301)
6
front panel section
1
wire (flat type) (16core)
(CN801)
flexible flat (18core) cable
(CN802)
2
connector
(CN501)
HCD-VC1
5
screw (KTP3 × 6)
2-5. MECH DECK (TAPE)
7
two screws
(BTP3 × 8)
4
two screws
×
(BTP3
6
flexible flat (9core) cable
(CN302)
8)
3
5
screw (KTP3 × 6)
5
TC board
4
2
three screws
(BVTT2.6 × 5
connector
(CNP1)
3
1P wire
8
mech deck (tape)
1
azimuth cap
7
two screws
(BTP3 × 8)
9
HCD-VC1
2-6. CD MECHANISM DECK (CDM55F-K6BD42A), MPEG BOARD
6
parallel (FFC) (24core) wire
3
connector
(CN503)
7
three screws
(DIA.2.6 × 8)
8
MPEG board
9
two screws
(DIA.2.6 × 8)
0
bracket (MPEG)
3
connector
(CN504)
4
screw
(BVTP3 × 8)
(CN501)
1
fparallel (FFC) (19core) wire
(CN101)
2
connector
(CN401)
qa
CD mechanism deck
(CDM55F-K6BD42A)
2-7. BASE UNIT (BU-K6BD42A)
2
base unit (BU-K6BD42A)
5
1
floating screw
(PTPWHM2.6)
10
2-8. LOADING BOARD
B
2
belt (CDM55)
HCD-VC1
3
Pull the tray
with pushing
B
2-9. CAM (CDM55)
.
4
two screws
(BTP2.6
×
6)
6 gear (B)
A
3 spacer (55)
5
LOADING board
4 pulley (LDG)
1
5 gear (A)
Rotate the gear(B) in
the direction of arrow
A
.
2 lever (SW)
1 torsion spring
7 roller
8 cam (CDM55)
11
HCD-VC1
SECTION 3
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. Turn ON the power.
2. Press three buttons x (TAPE), x (CD), and
[TUNER/BAND] simultaneously.
3. The set is reset.
[Liquid Crystal Display All Lit Check Mode]
Procedure:
1. Set to standby state.
2. Press three buttons of x (TAPE), x (CD), and
[FUNCTION] simultaneously.
3. Liquid crystal display are all turned on.
4. T o exit from this mode, press the I/1 button to turn the power
OFF.
[Tape Deck Aging Mode]
This mode can be used for operation check of tape deck section.
Procedure:
1. Set a tape in the tape deck.
2. Set to standby state.
3. Press three buttons of x (TAPE), x (CD), and [+] (TUNING)
simultaneously.
4. The aging is executed in bellow sequence.
5. T o e xit from the a ging mode, press the I/1 button to turn the
power OFF.
[CD Aging Mode]
This mode can be used for operation check of CD section.
Procedure:
1. Load a CD disc.
2. Set to standby state.
3. Press three buttons of x (TAPE), x (CD), and [--] (TUNING)
simultaneously.
4. The aging is executed in bellow sequence.
5. T o e xit from the ag ing mode, press the I/1 button to turn the
power OFF.
Aging mode sequence:
Start
Open the disc tray
Close the disc tray
Play the last track
Aging mode sequence:
Start
FWD Play
REC pause for 3 seconds
FWD REC
Fast forward
REV Play
REC pause for 3 seconds
Shut off
1 minute
Shut off
3 minutes
Shut off
1 minute
12
REV REC
3 minutes
Rewind
Shut off
SECTION 4
)
)
+
–
CD board
IC703 pin qg
TP (VC)
oscilloscope
+
–
CD board
IC703 pin qh
TP (VC)
oscilloscope
(AC range)
y
ELECTRICAL ADJUSTMENTS
HCD-VC1
DECK SECTION
Note: Confirm each contents of this section first of all. If the results are
not satisfied, do the adjustment.
0 dB=0.775 V
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 RCH.
7. Switches and controls should be set as follows unless otherwise
specified.
• Test Tape
Tape Signal Used for
P-4-A100 10 kHz, –10 dB Azimuth Adjustment
Record/Playback Head Azimuth Adjustment
Procedure:
1. Mode: Playback
test tape
P-4-A100
(10 kHz, –10 dB)
MAIN board
SPEAKER terminals (SJ301
L-CH, R-CH
set
level meter
+
–
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.
Output
level
within
1 dB
L-CH
peak
R-CH
peak
within
1 dB
Screw
position
L-CH
peak
Screw
position
R-CH
peak
3. Mode: Playback
MAIN board
test tape
P-4-A100
(10 kHz, –10 dB)
set
in phase 45° 90 ° 135° 180°
SPEAKER terminals (SJ301
L-CH
R-CH
waveform of oscilloscope
good
oscilloscope
wrong
H
V
4. Repeat step 1 to 3 in playback (REV) mode.
5. After the adjustments, apply suitable locking compound to the
pats adjusted.
Adjustment Location:
reverse
forward
CD SECTION
Notes:
1. CD block basically constructed to operate without adjustment. Therefore, check each item in order given.
2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise indicated.
3. Use the oscilloscope with more than 10 MΩ impedance.
4. Clean an object lens by an applicator with neutral detergent when the
signal level is low than specified value with the following checks.
S-Curve Confirmation
Connection:
Procedure:
1. Connect an oscilloscope to IC703 pin qg and TP (VC) on the
CD board.
2. Connect between TP (FOK) and TP (GND) on the CD board
by lead wire.
3. Turn the power ON.
4. Press the
[EJECT ] (CD) button to open the disc tray, and
put the disc (YEDS-18).
5. Press the
[EJECT ] (CD) button to close the disc tray (Actu-
ate the focus search).
6. Confirm that the waveform on the oscilloscope is symmetrical
between A and B and that peak to peak level is within 3.0 ±
1.0 Vp-p.
S-curve waveform
7. After confirmation, disconnect the lead wire in step 2.
Note: • Try to measure several times to make sure that the ratio of A : B
or B : A is more than 10 : 7.
• Take sweep time as long as possible and light up the brightness
to obtain best waveform.
RF Level Confirmation
Connection:
Z
Z
symmetr
A
within 3.0 ± 1.0 Vp-p
B
RF signal waveform
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
(with the 10: 1 probe
in use)
level: 1.3 Vp-p
+0.25
–0.20
When observing the eye pattern, set the oscilloscope for A C range
and raise vertical sensitivity.
Connecting Location:
– CD Board (Conductor Side) –
TP (GND)
IC701
TP (VC)
CN701
TP (FOK)
20 11
IC703
1
10
Procedure:
1. Connect an oscilloscope to IC703 pin qh and TP (VC) on the
CD board.
2. Turn the power ON.
3. Load the disc (YEDS-18), and press the
u
[ ] button to play-
back the disc.
4. Confirm that the waveform on the oscilloscope is clear and
that the RF signal level is correct.
Note: Clear RF signal waveform means that the shape “◊” can be clearly
distinguished at the center of the waveform.
1313
HCD-VC1
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM – CD SERVO Section –
RF AMP,
DETECTOR
A
B
C
D
F
E
OPTICAL PICK-UP
(KSS-213DCP)
LASER DIODE
PD
7
4
2
1
5
I-V AMP
10
6
LD
A+5V
AUTOMATIC
A
3
B
4
C
5
D
6
F
8
F I-V AMP
E
9
E I-V AMP
POWER
CONTROL
Q701
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
FOCUS/TRACKING ERROR AMP
1
LD
IC702
IC703
RF
SUMMING
AMP
APC LD
AMP
RF EQ
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
APC PD
AMP
RFO
RFE
FE BIAS
LDON
IC704
6320
VCKI
XTAO
CLOCK
GENERATOR
INTERNAL BUS
DIGITAL
OUT
SBSO
75
62
XTAI
SCLK
ERROR
CORRECTOR
PEAK
DETECTOR
83
D/A DIGITAL
PROCESSOR
MUTE
79
MUTE
DATA
BCLK
LRCK
GFS
RFCK
PROCESSOR
C2PO
SERIAL/PARALLEL
DOUT
46
47
45
54
55
56
71
FILTER
32
34
33
MDS
97
31
PCO
FILO
DIGITAL PLL
VARI-PITCH
DOUBLE SPEED
SYNC
PROTECTOR
TIMING
GENERATOR 1
SCOR
XRST
74
81
WFCK
73
CLTV
SCOR
LDON
FILI
DEMODULATOR
TIMING
GENERATOR 2
EFM
ADDRESS
GENERATOR
SUBCODE Q
PROCESSOR
SUBQ
SQCK
77
78
SQCK/SCLK
REGISTER
32K
RAM
SUBQ
PRIORITY
ENCODER
SUBCODE P – W
PROCESSOR
EXCK
76
D+5V
VCD BLOCK
DIGITAL SIGNAL PROCESSOR
IC701 (1/2)
16
RF EQ
SWITCH
17
Q702
FE
15
14
TE
13
19
PD
2
RFAC
36
ASYMMETRY
CORRECTOR
ASYI
38
ASYO
39
NOISE
SHAPER
MIX
18-TIMES
OVERSAMPLING
FILTER
CLV
PROCESSOR
MDP
MON
FSW
94
95
96
CTRL2
XTAL 16.9344MHz
AD
BCK
LRCK
GFS
C2PO
VIDEO OUT
DO
L-OUT
R-OUT
S-SI
S-SD
RST
S-ACK
S-CLK
S-REQ
CD L-CH
R-CH
VIDEO OUT
OPTICAL
DO
TRANSCEIVER
IC321
J401
(Page 15)
A
OPTICAL
DIGITAL OUT (CD)
(Page 15)
E
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
M101
(SPINDLE)
M102
(SLED)
OUT+
27
M
26
16
M
17
12
13
1
2
OUT–
OUT+
OUT–
OUT–
OUT+
OUT+
OUT–
MOTOR
DRIVE
MOTOR
DRIVE
COIL
DRIVE
COIL
DRIVE
IN+
IN–
IN–
IN+
IN–
IN+
MUTE
IN+, IN–
23, 24
20
19
10
9
4
5
15
SW401
26
29
28
27
FE
TE
SE
RFDC
A/D
CONVERTER
SFDR
100
SRDR
2
TFDR
4
TRDR
6
FFDR
8
FRDR
10
PWM GENERATOR
FOCUS/TRACKING/SLED
SERVO DSP
FOCUS/TRACKING/SLED
SERVO
INTERFACE
COUT
89
DIGITAL SERVO
PROCESSOR
IC701 (2/2)
MIRR/DFCT/
FOK
DETECTOR
SERVO AUTO
SEQUENCER
CPU
INTERFACE
FOK
MIRR
DFCT
SENS
DATA
CLOK
XLAT
VIDEO SYSTEM
LIMIT
A +5V
93
91
92
80
86
88
87
FOK
TR-OPEN
SENS
DATA
CLK
XTL
SW-CLOSE
SW-OPEN
XRST
SYSTEM SELECT
PAL
AUTO
NTSC
S101
(LIMIT)
LOADING
MOTOR DRIVE
IC320
INPUT1TR-CLOSE
INPUT2
OUT1
OUT2
OPEN/CLOSE DETECT
5 2
6 10
M
M901
(LOADING)
S901
DISC TRAY
• R-CH : R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: CD PLAY (ANALOG OUT)
: CD PLAY (VIDEO)
: CD PLAY (DIGITAL OUT)
1414
5-2. BLOCK DIAGRAM – MAIN Section –
HCD-VC1
FM
75Ω
ANTENNA
AM
SJ302
AUDIO IN
MD (VIDEO)
(RECORD/PLAYBACK/ERASE)
L
R
L-CH
HRPE901
R-CH
(ERASE)
(Page 14)
SJ301
SPEAKER
+
–
–
+
B
J301
PHONES
L
R
(Page 16)
OUT
R-CH
IMPEADANCE
USE 6 – 16Ω
14
R-CH
REG CON
INPUT SELECT SWITCH,
MIX, TONE CONTROL,
ELECTRICAL VOLUME
TUNED
2
(TU-DATA)
5
(TU-CLK)
8
(TU-CE)
(TU-COUNT)
TU ON
(S-SI)
(S SO)
L-MUTE
REC-MUTE
REC/PB
11 17 14 100
IC323
R-CH
VOL2 OUT2
TREBLE
LOGIC
DATA CLK
14 15
SDA
88 23
SYSTEM CONTROLLER
IC801 (1/2)
(S-CLK)
(MPEG-RST)
(S-REQ)
(S-ACK)
MIDDLE BASS
(SCK)
AU-MUTE
AMP-MUTE
(MIC CHECK)
TEX
XTAL1
EXTAL1
MOT-CON
SOL-CON
TAPE-END
T-MODE
TC SW
MIC AMP
97
22
24
92
TX
93
40
39
10
32
11
MUTING
Q200
R-CH
MUTING DRIVE
Q330
B+ (+8V)
MUTING DRIVE
Q312, 313
X802
32.768KHz
X801
4.19MHz
4
1
6
CAPSTAN/REEL
MOTOR DRIVE
Q601, 602
TRIGGER
PLUNGER DRIVE
Q603, 604
TU1
TUNER PACK
LINE
OUT2
1
L-CH
2
FM ANT
ANT GND
ANT GND
AM ANT
R-CH
R-CH
A
CD L-CH
R-CH R-CH
4
TUNED
9
DI
8
CK
10
CE
7
DO
REC/PB SWITCHING
IC402
(REC)
1
(PB)
3
BIAS
OSC
T401
R-CH
(SW)
R-CH
2
REC BIAS SWITCH
Q402, 403
BIAS OSC
Q401
REC/PB AMP, EQ AMP
IC401
ALC
REC OUT L
R-CH
PB L
20
REC
IN L
14
16
MUTING
Q414
MUTING
Q407
B IN L
23
A IN L
24
R-CH
4
D401
T403
BIAS
TRAP
B+
(+8V)
C2
6
B1
3
D2
8
E2
10
R-CH
R-CH
31 30 17
LINE
AMP
19
18
25
12
13
96
87
95
HEADPHONE AMP
IC324
IN+
3
4
IN–
MUTE STBY
R-CH
(TAPE DECK BLOCK)
MM
TAPE END DETECT
SENSOR
STANDBY/MUTE
10 9
R-CH
R-CH
MOS GAIN &
LEVEL SHIFT
ING STAGE
MUTING
Q815, 817
MOS
STAGE
SHORT
CIRCUIT
PROTECTION
POWER AMP
IC201
OUTPUT
• R-CH : R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER
: CD PLAY (ANALOG OUT)
: CD PLAY (OPTICAL OUT)
: TAPE (PLAY)
: TAPE (RECORD)
: MD
(Page 14)
S-DO
S-DI
E
S-CLK
S-RST
S-REQ
S-ACK
LED DRIVE
Q854
D856, 857
TUNER
REC/PB
D
(Page 16)
1515
Loading...