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HCD-C450
SERVICE MANUAL US Model
Canadian Model
Ver 1.6 2004.08
E Model
Australian Model




HCD-C450 is the amplifier, DVD/CD and tuner
section in DAV-C450.


Model Name Using Similar Mechanism NEW
Mechanism Type CDM53K-DVBU7
Base Unit Name DVBU7
Optical Pick-up Name KHM-240AAA

SPECIFICATIONS
AUDIO POWER SPECIFICATIONS FM tuner section
POWER OUTPUT AND TOTAL HARMONIC DISTORTION: System PLL quartz-locked digital synthesizer system
With 3 ohms loads, both channels driven, from 120 ­ 10,000 Hz; rated North American model: 87.5 ­ 108.0 MHz (100 kHz step)
80 watts per channel minimum RMS power, with no more than 10 % Other models: 87.5 ­ 108.0 MHz (50 kHz step)
total harmonic distortion from 250 milliwatts to rated output. Antenna FM wire antenna
Antenna terminals 75 ohms, unbalanced
Amplifier section
Stereo mode
AM tuner section
North American and Mexican models: System Tuner section:
PLL quartz-locked digital synthesizer system
80 W + 80 W (3 ohms at 1 kHz, THD 10 %)
Tuning range
Other models: 70 W + 70 W (4 ohms at 1 kHz, THD 10 %)
North American model: 530 ­ 1,710 kHz (with the interval set at 10 kHz)
Surround mode
531 ­ 1,710 kHz (with the interval set at 9 kHz)
North American and Mexican models: Middle Eastern, and Philipinne models:
Front: 80 W + 80 W 531 ­ 1,602 kHz (with the interval set at 9 kHz)
Center*: 80 W Other models: 531 ­ 1,602 kHz (with the interval set at 9 kHz)
Rear*: 80 W + 80 W (3 ohms at 1 kHz, THD 10 %) 530 ­ 1,710 kHz (with the interval set at 10 kHz)
Subwoofer*: 100 W (3 ohms at 100 Hz, THD 10 %) Antenna Loop antenna
Other models: Front: 70 W + 70 W
Center*: 70 W Video section
Rear*: 70 W + 70 W (4 ohms at 1 kHz, THD 10 %) Outputs VIDEO: 1 Vp-p 75 ohms
Subwoofer*: 100 W (3 ohms at 100 Hz, THD 10 %) S-VIDEO: Y: 1 Vp-p 75 ohms
* Depending on the sound field settings and the source, there may be no sound output. C: 0.286 Vp-p 75 ohms
COMPONENT: Y: 1 Vp-p 75 ohms
Inputs (Analog) AUDIO 1, 2: PB/CB, PR/CR: 0.7 Vp-p 75 ohms
Sensitivity: 150 mV
Impedance: 50 kilohms
General
Power requirements
Inputs (Digital) AUDIO 2 (optical):
North American model: 120 V AC, 60 Hz
Sensitivity: ­
Australian and Asian models: 220 ­ 240 V AC, 50/60 Hz
Outputs (Analog) AUDIO 1 (AUDIO OUT):
Middle Eastern, and Philippine models:
Voltage: 2 V 110 ­ 240 V/ 220 ­ 240 V AC, 50/60 Hz
Impedance: 1 kilohms Power consumption 120 W (120 V AC), 120 W (230 V AC)
PHONES: Dimensions (approx.) 355 × 100 × 394 mm (14 × 4 × 15 5/8 inches) (w/h/d) incl. projecting parts
Accepts low and high-impedance headphones Mass (approx.) 5.5 kg (12 lb 3 oz)
Operating temperature 5°C to 35°C (41°F to 95°F)
Operating humidity 5 % to 90 %
Super Audio CD/DVD system
Laser Semiconductor laser
Design and specifications are subject to change without notice.
(Super Audio CD/DVD: = 650 nm)
(CD: = 780 nm)
Emission duration: continuous
Signal format system NTSC or NTSC/PAL
Frequency response (at 2 CH STEREO mode)
DVD (PCM): 2 Hz to 22 kHz (±1.0 dB)
CD: 2 Hz to 20 kHz (±1.0 dB)
Signal-to-noise ratio More than 80 dB (AUDIO 1 (AUDIO) connectors only)
Harmonic distortion Less than 0.03 %


COMPACT AV SYSTEM
9-874-002-07 Sony Corporation
2004H16-1 Audio Group
© 2004.08 Published by Sony Engineering Corporation
HCD-C450
Ver 1.3 2003. 05 SELF-DIAGNOSIS


First three Cause and/or Corrective
Self-diagnosis Function characters of Action
the service
(When letters/numbers appear in the
number
display) C 13 The disc is dirty.
, Clean the disc with a soft
cloth.
The self-diagnosis function is activated to
C 31 The disc is not inserted
prevent the system from malfunctioning. In
correctly.
this case a five-character service number , Re-insert the disc
(e.g., C 13 00) with a combination of a letter correctly.
and digits appears on the screen and the E XX To prevent a malfunction, the
front panel display. Refer to the following (xx is a number) system has performed the self-
table. diagnosis function.
, Contact your nearest Sony
dealer or local authorized
C:13:00 Sony service facility and
give the 5-character
service number.
Example: E 61 10




SERVICING NOTE


CHANGE OF OPTICAL PICK-UP
Optical Pick-up has been replaced from KHM-240AAA (TYPE A) to KHM-270AAA (TYPE B) from the middle of production.
In parallel with that, certain parts of DVD board have been changed.

TYPE A/B DISCRIMINATION
optical device




SILVER: KHM-240AAA (TYPE A)
BLACK: KHM-270AAA (TYPE B)

PARTS LIST OF EACH MODEL

DVD BOARD
REF TYPE A TYPE B
KHM-240AAA KHM-270AAA
R076 1-216-837-11 METAL CHIP 22K 5% 1/10W No Mount
R077 1-216-815-11 METAL CHIP 330 5% 1/10W 1-216-833-11 METAL CHIP 10K 5% 1/10W
R079 1-216-801-11 METAL CHIP 22 5% 1/10W 1-216-845-11 METAL CHIP 100K 5% 1/10W




2
HCD-C450
Ver 1.6

SAFETY CHECK-OUT
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
This appliance is classified as Check the antenna terminals, metal trim, "metallized" knobs, screws,
a CLASS 1 LASER product. and all other exposed metal parts for AC leakage. Check leakage as
The CLASS 1 LASER described below.
PRODUCT MARKING is
located on the rear exterior. LEAKAGE
The AC leakage from any exposed metal part to earth Ground and
from all exposed metal parts to any exposed metal part having a
This caution return to chassis, must not exceed 0.5 mA (500 microampers).
label is located Leakage current can be measured by any one of three methods.
inside the unit. 1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers' instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC 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 2V AC range are suitable. (See
Fig. A)
CAUTION
Use of controls or adjustments or performance of procedures To Exposed Metal
other than those specified herein may result in hazardous Parts on Set
radiation exposure.

Notes on chip component replacement
· Never reuse a disconnected chip component. AC
· Notice that the minus side of a tantalum capacitor may be Voltmeter
0.15 µF 1.5 k
damaged by heat. (0.75 V)

Flexible Circuit Board Repairing
· Keep the temperature of soldering iron around 270°C
during repairing. Earth Ground
· Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times). Fig. A. Using an AC voltmeter to check AC leakage.
· Be careful not to apply force on the conductor when soldering
or unsoldering.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
CHECKING OF OPERATIONS WITH REMOTE OR BASE UNIT
COMMANDERS OF DIFFERENT MODELS
Some of the signal of remote commander vary between generation The laser diode in the optical pick-up block may suffer electrostatic
of player. break-down because of the potential difference generated by the
Between DAV-S400/S500/S800/C450/C700/C900 and DAV-S550/ charged electrostatic load, etc. on clothing and the human body.
S880/C770/C900, remote commander signal codes of During repair, pay attention to electrostatic break-down and also
"FUNCTION", "BAND", "ST/MONO" and "MEMORY" are use the procedure in the printed matter which is included in the
different. repair parts.
Take notice of the above when you check the operation with remote The flexible board is easily damaged and should be handled with
commanders of different models. care.

NOTE OF REPLACING THE DVD BOARD NOTES ON LASER DIODE EMISSION CHECK
When replacing the DVD board, since the adjustment value is not
set up correctly, "Drive Auto Adjustment" can't be performed. The laser beam on this model is concentrated so as to be focused on
In this case, initialize Memory in the following procedures. the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
Procedure: observe from more than 30 cm away from the objective lens.
1.Starting test mode. (See page 18)
2.Press the [2] key of the remote commander, and set the "DRIVE LASER DIODE AND FOCUS SEARCH OPERATION
MANUAL OPERATION". (See page 24) CHECK
3.Press the [6] key of the remote commander, and set the "6. Memory
Check". (See page 26) Carry out the "S curve check" in "CD section adjustment" and check
4.Press the [CLEAR] key of the remote commander, and initialize that the S curve waveform is output several times.
Memory.




3
HCD-C450
Ver 1.3 2003. 05
TABLE OF CONTENTS

1. GENERAL ·········································································· 5 5. DIAGRAMS ······································································ 30
5-1. Block Diagrams ··························································· 32
2. DISASSEMBLY ································································ 7 5-2. Printed Wiring Board ­ RF Board ­ ··························· 35
2-1. Case (Top) ····································································· 7 5-3. Schematic Diagram ­ RF Board ­ ······························ 36
2-2. Tuner Unit ····································································· 8 5-4. Printed Wiring Board ­ DVD Board (Side A) ­ ········· 37
2-3. Front Panel Section ······················································· 8 5-5. Printed Wiring Board ­ DVD Board (Side B) ­ ········· 38
2-4. POWER Board ······························································ 9 5-6. Schematic Diagram ­ DVD Board (1/9) ­ ················· 39
2-5. Mechanism Deck (CDM53K-DVBU7) ························· 9 5-7. Schematic Diagram ­ DVD Board (2/9) ­ ················· 40
2-6. RF-240 Board ······························································ 10 5-8. Schematic Diagram ­ DVD Board (3/9) ­ ················· 41
2-7. Fitting Base (Magnet) Assembly ································· 10 5-9. Schematic Diagram ­ DVD Board (4/9) ­ ················· 42
2-8. DVD Base Unit (DVBU7) ··········································· 11 5-10. Schematic Diagram ­ DVD Board (5/9) ­ ················· 43
2-9. Optical Pick-up (KHM-240AAA) ······························· 11 5-11. Schematic Diagram ­ DVD Board (6/9) ­ ················· 44
2-10. CLAMP MOTOR Board, 5-12. Schematic Diagram ­ DVD Board (7/9) ­ ················· 45
Motor (Clamp) Assembly ············································ 12 5-13. Schematic Diagram ­ DVD Board (8/9) ­ ················· 46
2-11. Fitting Base (Guide) Assembly, 5-14. Schematic Diagram ­ DVD Board (9/9) ­ ················· 47
Bracket (Chassis) ························································· 12 5-15. Printed Wiring Board ­ AMP Board (Side A) ­ ········· 48
2-12. Tray (240) ···································································· 13 5-16. Printed Wiring Board ­ AMP Board (Side B) ­ ········· 49
2-13. Chassis (Mold B) Section ············································ 13 5-17. Schematic Diagram ­ AMP Board (1/2) ­ ················· 50
2-14. LOAD MOTOR Board, 5-18. Schematic Diagram ­ AMP Board (2/2) ­ ················· 51
Motor (Loading) Assembly (M702) ···························· 14 5-19. Printed Wiring Board ­ I/O Section ­ ························ 52
2-15. Stocker Section ···························································· 14 5-20. Schematic Diagram ­ I/O Section (1/2) ­ ·················· 53
2-16. Slider (Selection), Tension Spring (Shutter), 5-21. Schematic Diagram ­ I/O Section (2/2) ­ ·················· 54
Slider (Shutter) ···························································· 15 5-22. Printed Wiring Board ­ FRONT Section ­ ················· 55
2-17. Gear (Gear A), Gear (Gear B), Gear (U/D Slider) ······ 16 5-23. Schematic Diagram ­ FRONT Section ­ ··················· 56
2-18. Gear (Chucking) ·························································· 17 5-24. Printed Wiring Board ­ SW Section ­ ························ 57
5-25. Schematic Diagram ­ SW Section ­ ·························· 58
3. TEST MODE ···································································· 18 5-26. Printed Wiring Board ­ CDM Section ­ ···················· 59
5-27. Schematic Diagram ­ CDM Section ­ ······················· 60
4. ELECTRICAL ADJUSTMENT ·································· 28 5-28. Printed Wiring Board ­ POWER Board ­ ·················· 61
5-29. Schematic Diagram ­ POWER Board ­ ····················· 62
5-30. IC Block Diagrams ······················································ 63
5-31. IC Pin Function Descriptions ······································ 66

6. EXPLODED VIEWS ······················································ 76
6-1. Case (Top) Section ······················································ 76
6-2. Chassis Section ···························································· 77
6-3. Front Panel Section ····················································· 78
6-4. Overall Section (CDM53K-DVBU7) ·························· 79
6-5. Chassis (Mold) Assembly Section
(CDM53K-DVBU7) ···················································· 80
6-6. Chassis Section (CDM53K-DVBU7) ·························· 81
6-7. Stocker (240) Overall Section,
Optical Pick-up Section (DVBU7) ······························ 82

7. ELECTRICAL PARTS LIST ······································· 83




SAFETY-RELATED COMPONENT WARNING!! ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
PUBLISHED BY SONY. DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.


4
HCD-C450
SECTION 1
This section is extracted
GENERAL from instruction manual.


Index to Parts and Controls
For more information, refer to the pages indicated in parentheses.


Front Panel




1 POWER switch/indicator (32) 8 PHONES jack (32)
2 DISC 1 (play) / A (open/close)-DISC 5 9 VOLUME control (32)
(play) / A (open/close) (32) q; SOUND FIELD +/­ (49)
3 Front panel display (12) qa DISPLAY (49, 64)
4 ./> PREV/NEXT, PRESET +/­ qs BAND (30)
(30, 33) qd FUNCTION (63)
5 H (play) (32) qf (remote sensor) (18)
6 X (pause) (33) qg Disc tray (32)
7 x (stop) (33)




Rear Panel




OUT IN IN

L L S VIDEO
( DVD ONLY)
AM

R R OPTICAL Y P B/ C B P R/ C R
DIGITAL VIDEO
COAXIAL IN
AUDIO 1 AUDIO 2 MONITOR OUT COMPONENT VIDEO OUT
FM FRONT R CENTER FRONT L
75




REAR R WOOFER REAR L
SPEAKER




1 AM antenna (21) 6 COMPONENT VIDEO OUT jacks (23)
2 AUDIO 1 jacks (23) 7 SPEAKER jacks (19)
3 AUDIO 2 jacks (23) 8 FM 75 COAXIAL antenna jack (21)
4 DIGITAL IN (OPTICAL) jack (24)
5 MONITOR OUT (VIDEO/S VIDEO)
jacks (23)




5
HCD-C450



1 TV [/1 (on/standby) (62)
Remote
2 Z OPEN/CLOSE (32)
3 NAME (65)
4 STEREO/MONO (64)
5 MEMORY (30)
6 CLEAR (39)

7 PLAY MODE (39)
8 AUDIO (47)
9 ANGLE (54)
1 2 3 q; SUBTITLE (55)
4 5 6 qa VOL +/­ (62)
7 8 9 qs ./>, PREV/NEXT, TV CH +/­,
PRESET +/­ (30, 33)
>10 10/0

qd H PLAY/SELECT (32)
qf DVD TOP MENU (35)
qg DVD DISPLAY (15)
qh C/X/x/c/ENTER (26)
qj DVD SETUP (59)
qk 1 (standby) (32)

ql DISC SKIP (32)
w; TV/VIDEO (62)
wa REPEAT (39)
ws MUTING (33)
wd TIME (44)
wf FUNCTION (63)

wg BAND (30)
wh Number buttons (35)
wj SOUND FIELD (49)
wk DISPLAY (49, 64)
wl ENTER (62)
e; COMMAND MODE DVD/TV switch
(62)

ea m/M, / SLOW, TUNING +/­
(30, 41)
es x STOP (33)
ed X PAUSE (33)
ef DVD MENU (35)
eg O RETURN (36)
eh AMP MENU (26)




6
HCD-C450
SECTION 2
DISASSEMBLY
· The equipment can be removed using the following procedure.

SET CASE (TOP) TUNER UNIT FRONT PANEL SECTION


POWER BOARD


MECHANISM DECK (CDM53K-DVBU7) RF-240 BOARD


FITTING BASE (MAGNET) ASSEMBLY DVD BASE UNIT (DVBU7) OPTICAL PICK UP (KHM-240AAA)


CLAMP MOTOR BOARD, MOTOR (CLAMP) ASSEMBLY


FITTING BASE (GUIDE) ASSEMBLY, TRAY (240)
RACKET (CHASSIS)
CHASSIS (MOLD B) SECTION



LOAD MOTOR BOARD, MOTOR (LOADING) ASSEMBLY (M702)


STOCKER SECTION


SLIDER (SELECTION), TENSION SPRING (SHUTTER),
SLIDER (SHUTTER)



GEAR (GEAR A), GEAR (GEAR B), GEAR(U/D SLIDER)


GEAR (CHUCKING)


Note: Follow the disassembly procedure in the numerical order given.
2-1. Case (Top)


4 case


3 four screws,
+BVTP
2 two case screws (3 × 8)




1 two case screws




7
HCD-C450



2-2. Tuner Unit



4 flexible flat cable
(13core)
7 tuner unit
1 screw,
+BVTP
(3 × 8)




5 earth wire




6 two screws,
+BVTP
(3 × 8)


2 screw,
+BVTP
(3 × 8)




3 chassis




2-3. Front Panel Section

7 flexible flat cable (17core)
(CN005)
HARNESS PROCESSING 3 screw,
+BVTP
MD cover (3 × 8)


2 connector
(CN902)




4 wire

HARNESS PROCESSING

POWER board
8 front panel
section



wiring
stopper
6 two claws
1 connector
(CN309)


5 five Screws,
+BVTP
(3 × 8)




8
HCD-C450



2-4. POWER Board

5 two screws,
+BVTP
6 wire (3 × 8)
7 two screws,
+BVTP
(3 × 8)




9 POWER board
2 connector
(CN901)
8 hook

3 connector
(CN902)



1 connector
(CN905)




4 connector
(CN904)




2-5. Mechanism Deck (CDM53K-DVBU7)

6 screw, 5 screw, 4 two screws,
+BVTP +BTP +BTP
(3 × 8) (3 × 6) (3 ×12)
HARNESS PROCESSING
HARNESS PROCESSING
MD cover 8 MD cover
MD cover

connector
(CN202)


q; four screws,
+BVTP
(3 × 8)


qd mechanism deck
(CDM53K-DVBU7)

qs flexible flat cable
(9core) (CN004)

7 connector qa flexible flat cable
(CN202) (25core) (CN002)
2 screw,
+BTP
(3 × 6)

1 three screws,
+BVTP
(3 × 8)
3 bracket
9 flexible flat cable
(17core) (CN701)



9
HCD-C450



2-6. RF-240 Board

1 three screws
+BVTP
(2.6 × 8)




4 RF-240 board 3 flexible flat cable (9 core)
(CN003)



2 flexible flat cable (26 core)
(CN001)




2-7. Fitting Base (Magnet) Assembly


2 four screws
+BVTP
(2.6 × 8)




3 fitting base (magnet)
assembly


1 connector
(CN710)




10
HCD-C450



2-8. DVD Base Unit (DVBU7)
1 two floating screws,
+PTPWHM (2.6 × 6)




2 DVD base unit
(DVBU7)




2-9. Optical Pick-up (KHM-240AAA)


1 step screw (L)
2 two step
screws (S)



7 three insulators




6




8 optical pick-up
(KHM-240AAA)
3 flexible flat cable
(26 core)

5 holder (240)
assembly 4 flexible flat cable
(9 core)




11
HCD-C450



2-10. CLAMP MOTOR Board, Motor (Clamp) Assembly



1 belt (mode)




5 motor (clamp)
assembly (M701)




4 CLAMP MOTOR
board




3 Remove the two solderings.
2 two screws
+BVTP
(2.6 × 8)




2-11. Fitting Base (Guide) Assembly, Bracket (Chassis)

2 four screws 6 bracket
+BVTP (chassis)
(2.6 × 8)

4 two screws
3 fitting base +BVTP
(guide) assembly (2.6 × 8)




5 three screws
+BVTP
(2.6 × 8)
1 two connectors
(CN709, 715)




12
HCD-C450



2-12. Tray (240)

1 Rotating the pulley (LD)-A, shift the slider (selection) in the arrow A direction.
2 Rotating the pulley (LD)-B in the arrow direction, adjust the tray (240) to be removed.
3 Rotating the pulley (LD)-A, shift the slider (selection) in the arrow B direction.
4 Rotating the pulley (LD)-B in the arrow direction, remove the tray (240) to be removed.

slider (selection)


pulley (LD)-A



stocker section A


B




pulley (LD)-B


tray (240)




2-13. Chassis (Mold B) Section



1 two screws PRECAUTION DURING CHASSIS (MOLD B) SECTION INSTALLATION
+BVTP
(2.6 × 8)
1 Insert the portion A of
chassis (mold B) section
into the portion B of
2 cover 2 Insert the gear (eject) slider (selection).
under the gear (LD
deceleration).
3 three screws chassis (mold B)
+BVTP section
(2.6 × 8) portion A

4 chassis (mold B)
section gear (eject)
5 gear (eject)




portion B of
slider (selection)




13
HCD-C450



2-14. LOAD MOTOR Board, Motor (Loading) Assembly (M702)



1 belt (communication)


2 belt (loading)
3 belt (loading)
7 motor (loading)
assembly (M702)




6 LOAD MOTOR
board




5 Remove the two solderings.

4 two screws
+BVTP
(2.6 × 8)




2-15. Stocker Section
PRECAUTION DURING STOCKER
SECTION INSTALLATION

4 stocker section Hook the portion A of tray (240)
to the slider (selection).




portion A sticking of
of tray (240) slider (selection)
2 two step screws (J)




1


3 two step screws (J)


gear (gear A)



14
HCD-C450



2-16. Slider (Selection), Tension Spring (Shutter), Slider (Shutter)

1 two floating screws
+PTPWHM, PRECAUTION DURING SLIDER
(2.6 x 6) (SELECTION) INSTALLATION (2)




4 slider (selection),
tension spring (shutter), 2 washer, 8 Insert the slider (selection)
slider (shutter) into the portion A.
3 compression
spring (gear A)




portion A




PRECAUTION DURING SLIDER
(SELECTION) INSTALLATION (1)

gear (choking) slider (selection)




Insert a convex portion into
the groove of gear (chucking).




15
HCD-C450



2-17. Gear (Gear A), Gear (Gear B), Gear (U/D Slider)

6 gear (gear B) 5 gear (gear A)
7 screw
+BVTP
(2.6 × 8) 2 washer
3 compression spring

8 gear (U/D slider) 4 gear (selection)


1 gear (relay)




PRECAUTION DURING GEAR (GEAR U/D SLIDER), GEAR (GEAR B), GEAR (GEAR A) INSTALLATION

3 gear (gear B)
portion A




Adjust the gear (gear B) with the
portion A as shown.


slider (U/D)


1 Slide the slider (U/D)
fully in the arrow
direction.



4 gear (gear A)
2 gear (U/D slider)
slider (U/D) gear gear linearly
(gear B)




Adjust the gear so that it meshes with Adjust so as to be aligned with
the bottom tooth of slider (U/D) gear, gear B linearly, as shown.
as shown.




16
HCD-C450



2-18. Gear (Chucking)


PRECAUTION DURING 2
GEAR (CHUCKING) (2)

rotary encoder gear 1
(S707) (chucking) 3 gear (chucking)



NG rotary encoder (S707)




OK Align with the slot of
rotary encoder.



PRECAUTION DURING
GEAR (CHUCKING) (1)
rotary encoder (S707)




Align marking.




17
HCD-C450
Ver 1.4 2003. 07 SECTION 3
TEST MODE
Version Display Mode OSD Test Mode
Procedure: Procedure:
1. Press the A button on the main unit or ?/1 button on the 1. Press the A button on the main unit or ?/1 button on the
remote commander to turn the set on. remote commander to turn the set on.
2. Press three buttons of FUNCTION , . PREV and A 2. Set the FUNCTION to DVD.
(Disc 1) simultaneously for two seconds. 3. While pressing two buttons of DISPLAY and
3. The message "VER. 1. XX " is displayed for a moment. x simultaneously, turn the VOLUME knob clockwise.
4. The Test Mode Menu is displayed on the TV screen.
Jog Test Mode 5. To execute each function, select the number on the remote
Procedure: commander.
1. Press the A button on the main unit or ?/1 button on the 6. See the following section for explanation in detail.
remote commander to turn the set on. 7. To exit from this mode, press the POWER button to turn the
2. Press three buttons of BAND , x and A (Disk 5) simul- set off.
taneously.
3. The fluorescent indicator displays "JOG 0". The value "JOG Disc Tray Lock
0" increases like +1, +2, +3... if rotating the VOLUME knob Procedure:
clockwisw,or it decreases like ­1, ­2, ­3,.... if rotating counter- 1. Press the A button on the main unit or ?/1 button on the
clockwise. remote commander to turn the set on.
4. To exit from this mode, press the POWER button to turn the 2. Press two buttons of DISPLAY and . PREV
set off. simultaneously for two seconds.
3. The message "LOCKED" is displayed and the tray is locked.
Key Test Mode (Even if exiting from this mode, the tray is still locked.)
Procedure: 4. Press two buttons of DISPLAY and . PREV
1. Press the A button on the main unit or ?/1 button on the simultaneously for two seconds again.
remote commander to turn the set on. 5. The message "UNLOCKED" is displayed and the tray is
2. Press three buttons of DISPLAY , x and A (Disk 2) simul- unlocked.
taneously. 6. To exit from this mode, press the POWER button to turn the
3. The message "KEY NUM 0" is displayed and "0" blinks. set off.
4. Each time a button is pressed, "KEY NUM 0" value increases.
However, once a button is pressed, it is no longer taken into General Description
account. The Test Mode allows you to make diagnosis and adjustment easily
5. When all buttons are pressed, "KEY NUM 20" appears and using the remote commander and monitor TV. The instructions,
the number blinking is stopped. diagnostic results, etc. are given on the on-screen display (OSD).
6. To exit from this mode, press the POWER button to turn the
set off. [TEST DISC LIST]
Use the following test disc on test mode.
Display Test Mode 1) DVD reference disc
Procedure: HLX-501 (J-6090-071-A) (dual layer)
1. Press the A button on the main unit or ?/1 button on the HLX-503 (J-6090-069-A) (single layer)
remote commander to turn the set on. HLX-504 (J-6090-088-A) (single layer)
2. Press three buttons of BAND , X and A (Disk 3) simul- HLX-505 (J-6090-089-A) (dual layer)
taneously. 2) SACD reference disc
3. All segments and five orange LEDs on the panel are turned on. HLXA-509 (J-6090-090-A)
ALL 1 DISCS AUTO TITLE TRACK CHAPTER INDEX HTUNED M MONO ST S D D dts PCM
Note: Do not use exiting test disc for DVD.
PRO LOGIC dB REPEAT 1
D D DIGITAL FM AM kHz PROGRAM
NTSC PBC ANGLE MHz SHUFFLE Starting Test Mode
Set the FUNCTION to DVD with the main unit power on. Next,
while pushing the x button and the [DISPLAY] button on the main
4. When the NEXT > button is pressed, the display will light unit at the same time, turn the VOLUME knob to the right to start
up as follows. Five orange LEDs are still lit on. Test Mode and display the menu shown below on the TV screen. At
ALL 1 DISCS AUTO TITLE TRACK CHAPTER INDEX HTUNED M MONO ST S D D dts PCM the bottom of the menu screen, the model name and revision number
PRO LOGIC
D D DIGITAL FM AM
dB REPEAT 1
kHz PROGRAM
are displayed.
NTSC PBC ANGLE MHz SHUFFLE To execute each function, select the desired menu and press its
number on the remote commander. To exit from Test Mode, press
the [POWER] button.
5. Press the NEXT > button, confirm the display. Five orange
LEDs are turned off. Test Mode Menu

0. Syscon Diagnosis
1. Drive Auto Adjustment
2. Drive Manual Operation
3. Mecha Aging
4. Emergency History
6. Press the NEXT > button, all segments are turned off. 5. Version Information
7. Every pressing of the NEXT > button turns on each 6. Video Level Adjustment
segments in the same order. Exit: POWER Key
8. To exit from this mode, press the POWER button to turn the _
set off. Model : HCX-1089_xx
Revision: 1.xxx Last Off:01

18
HCD-C450



Syscon Diagnosis Press x key to quit the diagnosis, or [PREV] key to repeat the
The same contents as board detail check by serial interface can be same item where an error occurred, or [NEXT] key to continue the
checked from the remote commander. check from the item next to faulty item.
On the Test Mode Menu screen, press [0] key on the remote
commander, and the following check menu will be displayed. Selecting 2 and subsequent items calls the submenu screen of each
item.
### Syscon Diagnosis ### For example, if "5. Supply" is selected, the following submenu will
Check Menu
be displayed.
0. Quit
1. All
2. Version ### Syscon Diagnosis ###
3. Peripheral Check Menu
4. Servo No. 5 Supply
5. Supply 0. Quit
6. AV Decoder 1. All
7. Video 2. ARP Register Check
8. Audio 3. ARP to RAM Data Bus
9. DSD Decoder 4. ARP to RAM Address Bus
_ 5. ARP RAM Check
_


0. Quit
Quit the Syscon Diagnosis and return to the Test Mode Menu.

1. All