Sony HCDC-990 Service manual

HCD-C770/C990

AUDIO POWER SPECIFICATIONS (C770: US model)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

With 3 ohm loads, both channels driven, from 150 – 10,000 Hz; rated 70 watts per channel minimum RMS power, with no more than 1 % total harmonic distortion from 250 milliwatts to rated output.

Amplifier section

Stereo mode (C770) 90 W + 90 W (3 ohms at 1 kHz, THD 10 %)

Surround mode (C770) Front: 90 W + 90 W

Center*: 90 W Rear*: 90 W + 90 W (3 ohms at 1 kHz, THD 10 %) Subwoofer*: 100 W (3 ohms at 100 Hz, THD 10 %)

* Depending on the sound field settings and the source, there may be no sound output.

Inputs (Analog) VIDEO 1, 2:

Sensitivity: 150 mV Impedance: 50 kilohms

Inputs (Digital) VIDEO 2 (optical):

Sensitivity: –

Outputs (Analog) VIDEO 1 (AUDIO OUT):

Voltage: 2 V Impedance: 1 kilohms

PHONES:

Accepts low- and high-impedance headphones

AUDIO POWER SPECIFICATIONS (C990: US model)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

With 3 ohm loads, both channels driven, from 150 – 10,000 Hz; rated 75 watts per channel minimum RMS power, with no more than 1 % total harmonic distortion from 250 milliwatts to rated output.

Stereo mode (C990) 100 W + 100 W (3 ohms at 1 kHz, THD 10 %)

Surround mode (C990) Front: 100 W + 100 W

Center*: 100 W Rear*: 100 W + 100 W (3 ohms at 1 kHz, THD 10 %) Subwoofer*: 100 W (3 ohms at 100 Hz, THD 10 %)

SERVICE MANUAL

Ver 1.5 2003.07

HCD-C770/C990 is the amplifier, DVD/CD player and tuner section in DAV-C770/C990.

Photo: HCD-C770

SPECIFICATIONS

US Model

Canadian Model

HCD-C770/C990

AEP Model

Australian Model

HCD-C770

Model Name Using Similar Mechanism NEW Mechanism Type CDM69-DVBU16 Base Unit Name DVBU16 Optical Traverse Unit Name DBU-1

9-874-059-06 Sony Corporation

2003G05-1 Home Audio Company

C 2003.07 Published by Sony Engineering Corporation

– Continued on next page –

SACD/DVD RECEIVER

HCD-C770/C990

Super Audio CD/DVD system

Laser Semiconductor laser

Signal format system NTSC or NTSC/PAL Frequency response (at 2 CH STEREO mode)

Signal-to-noise ratio More than 80 dB (VIDEO 1 (AUDIO) connectors only) Harmonic distortion Less than 0.03 %

FM tuner section

System PLL quartz-locked digital synthesizer system Tuning range North American model: 87.5 – 108.0 MHz (100 kHz step) Other models: 87.5 – 108.0 MHz (50 kHz step) Antenna FM wire antenna Antenna terminals 75 ohms, unbalanced Intermediate frequency 10.7 MHz

AM tuner section

System PLL quartz-locked digital synthesizer system Tuning range North American model: 530 – 1,710 kHz (with the interval set at 10 kHz)

European model: 531 – 1,602 kHz (with the interval set at 9 kHz) Other models: 531 – 1,602 kHz (with the interval set at 9 kHz)

Antenna Loop antenna Intermediate frequency 450 kHz

Video section

Inputs Video: 1 Vp-p 75 ohms Outputs Video: 1 Vp-p 75 ohms

General

Power requirements North American model: 120 V AC, 60 Hz European model: 230 V AC, 50/60 Hz Australian model: 220 – 240 V AC, 50/60 Hz Power consumption (C770) 135 W (120 V AC) 135 W (230 V AC)

Power consumption (C990) 140 W (120 V AC)

Dimensions (approx.) × 70 × 335 mm (14 × 2

Mass (approx.) 4.4 kg (9 lb 12 oz) Operating temperature 5˚C to 35˚C (41˚F to 95˚F) Operating humidity 5 % to 90 %

n and specifications are subject to change without notice.

Desi

(Super Audio CD/DVD: λ = 650 nm) (CD: λ = 780 nm) Emission duration: continuous

DVD (PCM): 2 Hz to 22 kHz (±1.0 dB) CD: 2 Hz to 20 kHz (±1.0 dB)

531 – 1,710 kHz (with the interval set at 9 kHz)

530 – 1,710 kHz (with the interval set at 10 kHz)

S video:

Y: 1 Vp-p 75 ohms C: 0.286 Vp-p 75 ohms

COMPONENT:

Y: 1 Vp-p 75 ohms

B/CB

, PR/CR: 0.7 Vp-p 75 ohms

1 W (120 V AC) 2 W (230 V AC) (at the Power Saving Mode)

1 W (120 V AC) (at the Power Saving Mode) 355 incl. projecting parts

/8 × 13 1/4 inches) (w/h/d)

SELF DIAGNOSIS FUNCTION

Self-diagnosis Function

(When letters/numbers appear in the display)

When the self-diagnosis function is activated to prevent the system from malfunctioning. In this case a five-character service number (e.g., C 13 00) with a combination of a letter and digits appears on the screen and the front panel display. Refer to the following table.

C:13:00

First three characters of the service number

C 13

C 31

E XX

(xx is a number)

Note: Refer to the “5. TEST MODE” (page 22) for another self-diagnosis

function.

Cause and/or Corrective Action

The disc is dirty. , Clean the disc with a soft

cloth.

The disc is not inserted correctly. , Re-insert the disc

correctly.

To prevent a malfunction, the system has performed the selfdiagnosis function. , Contact your nearest Sony

dealer or local authorized Sony service facility and give the 5-character service number. Example: E 61 10

HCD-C770/C990

1.5 k

Ω

0.15 µF

AC voltmeter (0.75 V)

To Exposed Metal Parts on Set

Earth Ground

Notes on chip component replacement

•Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged by heat.

Flexible Circuit Board Repairing

•Keep the temperature of the soldering iron around 270 ˚C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

CAUTION

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

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. Follow the man ufacturers’ instructions to use these instruments.

2. A battery-operated A C 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 A C range are suitable. (See Fig. A)

This appliance is classified as a CLASS 1 LASER product. The label is located on the bottom exterior.

This label is located on the bottom exterior.

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.

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.

HCD-C770/C990

Ver 1.5

SELF DIAGNOSIS FUNCTION.................................... 2

1. SERVICING NOTES ............................................... 5

2. GENERAL

Location of Controls ...................................................... 6

3. DISASSEMBLY

3-1. Disassemb ly Flow .......................................................... 9

3-2. F ront Panel (AL) Section, Side Panel (L)/(R) ............... 10

3-3. Mechanism Deck (CDM69-DVBU16) .......................... 10

3-4. POWER SW Board ........................................................ 11

3-5. AUDIO Board, VIDEO Board....................................... 11

3-6. AMP Board .................................................................... 12

3-7. POWER Board ............................................................... 12

3-8. DVD Board..................................................................... 13

3-9. Optical Pick-up (DVBU16) ........................................... 13

3-10. Pick-up Unit (TDP022W) .............................................. 14

3-11. SW Board, Bracket (Top) assy ...................................... 14

3-12. RELAY Board ................................................................ 15

3-13. Motor (Stocker) Assy (Stocker) (M781) ....................... 15

3-14. Motor (Stocker) Assy (Roller) (M771) ......................... 16

3-15. Motor (Stocker) Assy (Mode) (M761) .......................... 16

3-16. Rubber Roller (Slider) Assy .......................................... 17

3-17. Timing Belt (Front/Rear) ............................................... 17

3-18. Cam (Gear) ..................................................................... 18

3-19. SENSOR Board .............................................................. 18

7-16. Schematic Diagram – DVD Board (4/10) – ................. 47

7-17. Schematic Diagram – DVD Board (5/10) – ................. 48

7-18. Schematic Diagram – DVD Board (6/10) – ................. 49

7-19. Schematic Diagram – DVD Board (7/10) – ................. 50

7-20. Schematic Diagram – DVD Board (8/10) – ................. 51

7-21. Schematic Diagram – DVD Board (9/10) – ................. 52

7-22. Schematic Diagram – DVD Board (10/10) – ............... 53

7-23. Printed Wiring Board – AMP Section (1/2) – .............. 54

7-24. Printed Wiring Boards – AMP Section (2/2) –............. 55

7-25. Schematic Diagram – AMP Section (1/2) – ................. 56

7-26. Schematic Diagram – AMP Section (2/2) – ................. 57

7-27. Printed Wiring Boards – AUDIO Section – ................. 58

7-28. Schematic Diagram – AUDIO Section – ...................... 59

7-29. Printed Wiring Board – VIDEO Section – ................... 60

7-30. Schematic Diagram – VIDEO Section – ...................... 61

7-31. Printed Wiring Boards

– DC-DC CONVERTER Section – ............................... 62

7-32. Schematic Diagram

– DC-DC CONVERTER Section – ............................... 63

7-33. Printed Wiring Boards – CONTROL Section – ........... 64

7-34. Schematic Diagram – CONTROL Section –................ 65

7-35. Printed Wiring Board – FL Board – ............................. 66

7-36. Schematic Diagram – FL Board – ................................ 67

7-37. Printed Wiring Boards – POWER Section (1/2) – ....... 68

7-38. Printed Wiring Boards – POWER Section (2/2) – ....... 69

7-39. Schematic Diagram – POWER Section – .................... 70

7-40. IC Pin Function Description .......................................... 88

4. ASSEMBLY

4-1. How to Install the Cam (Eject Lock) ............................. 19

4-2. How to Install the Cam (Gear)....................................... 19

4-3. How to Install the Gear (Mode 2) .................................. 20

4-4. How to Install the Gear (Mode Cam) ............................ 20

4-5. How to Install the Rotary Encoder (S702),

Gear (Stocker Communication)..................................... 21

4-6. How to Install the Cam (Stocker U/D) .......................... 21

4-7. How to Install the Stocker Assy..................................... 22

4-8. Phase Adjustment Between Pinions (Slider)

And Slider-1 to 5 (L/R).................................................. 23

5. TEST MODE............................................................. 24

6. ELECTRICAL ADJUSTMENT........................... 31

7. DIAGRAMS

7-1. Block Diagram – RF SERVO Section – ....................... 32

7-2. Block Diagram – AUDIO (DSP) Section – .................. 33

7-3. Block Diagram – AUDIO OUT, PANEL Section – ..... 34

7-4. Block Diagram – VIDEO Section – ............................. 35

7-5. Block Diagram

– CHANGER, POWER SUPPLY Section – ................. 36

7-6. Note for Printed Wiring Boards and

Schematic Diagrams ...................................................... 37

7-7. Printed Wiring Boards – RF Section – ......................... 38

7-8. Schematic Diagram – RF Section –.............................. 39

7-9. Printed Wiring Boards – CHANGER Section –........... 40

7-10. Schematic Diagram – CHANGER Section – ............... 41

7-11. Printed Wiring Board

– DVD Board (Component Side) – ............................... 42

7-12. Printed Wiring Board

– DVD Board (Conductor Side) – ................................. 43

7-13. Schematic Diagram – DVD Board (1/10) – ................. 44

7-14. Schematic Diagram – DVD Board (2/10) – ................. 45

7-15. Schematic Diagram – DVD Board (3/10) – ................. 46

8. EXPLODED VIEWS

8-1. General Section ............................................................. 107

8-2. F ront Panel Section-1 .................................................... 108

8-3. F ront Panel Section-2 .................................................... 109

8-4. Chassis Section-1 .......................................................... 110

8-5. Chassis Section-2 .......................................................... 111

8-6. Chassis Section-3 .......................................................... 112

8-7. Mechanism Deck Section-1 (CDM69-DVBU16) ........ 113

8-8. Mechanism Deck Section-2 (CDM69-DVBU16) ........ 114

8-9. Mechanism Deck Section-3 (CDM69-DVBU16) ........ 115

8-10. Mechanism Deck Section-4 (CDM69-DVBU16) ........ 116

8-11. Mechanism Deck Section-5 (CDM69-DVBU16) ........ 117

8-12. Mechanism Deck Section-6 (CDM69-DVBU16) ........ 118

8-13. Optical Pick-up Section (DVBU16) ............................. 119

9. ELECTRICAL PARTS LIST ............................. 120

SECTION 1

)

SERVICING NOTES

HCD-C770/C990

Ver 1.3

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 objecti ve lens.

JIG ON REPAIRING

When repairing this set, etc., connect the extension cable as the figure shown below.

RELEASING THE DISC SLOT LOCK

The disc slot lock function for the antitheft of an demonstration disc in the store is equipped.

Releasing Procedure:

1. Press two buttons of [DISC 1] and x simultaneously for five seconds.

2. The message “UNLOCKED” is displayed and the slot is unlocked.

Note: When “LOCKED” is displayed, the slot lock is not released by

turning power on/off with the [POWER] button.

CHECKING OF OPERATIONS WITH REMOTE COMMANDERS OF DIFFERENT MODELS

Some of the signal of remote commander vary between generation of player. Between DAV -S400/S500/S800/C450/C700/C900 and D AV -S550/ S880/C770/C900, remote commander signal codes of “FUNCTION”, “BAND”, “ST/MONO” and “MEMORY” are different. Take notice of the above w hen you check the operation with remote commanders of different models.

extension cable (relay board-DVD board) (Part No. J-2501-143-A)

extension cable (RF board-DVD board) (Part No. J-2501-217-A)

extension cable (DVD board-AMP board) (Part No. J-2501-198-A)

extension cable (DVD board-AMP board (Part No. J-8000-024-A)

HCD-C770/C990

LOCATION OF CONTROLS

Front Panel

SECTION 2

GENERAL

This section is extracted from instruction manual.

STANDBY

1 POWER switch 2 STANDBY indicator 3 DISC 1 (play) /A (Eject)/indicator –

DISC 5 (play) /A (Eject)/indicator

4 H (play) 5 X (pause) 6 x (stop) 7 ./> PREV/NEXT, PRESET –/+ 8 PHONES jack

Rear Panel

FUNCTION BAND DISPLAY SOUND FIELD

9 VOLUME control 0 SOUND FIELD –/+ qa DISPLAY qs BAND qd FUNCTION qf Disc slot qg Front panel display

(remote sensor)

PHONES

FRONT

REAR

IMPEDANCE

USE WOOFER 3Ω EXCEPT WOOFER 3Ω

FRONT

CENTER WOOFER

REAR

SPEAKER

1 SPEAKER jacks 2 AM antenna 3 VIDEO 1 jacks 4 VIDEO 2 jacks 5 COMPONENT VIDEO OUT/SCAN

SELECT switch

COAXIAL

75Ω

COMPONENT

VIDEO 1

AUDIO OUT

AUDIO IN

VIDEO OUT

VIDEO IN

VIDEO OUT

VIDEO 2

VIDEO INAUDIO IN

YPB/CBPR/C

COMPONENT VIDEO OUT

SELECTABLE

INTERLACE

6 MONITOR OUT (VIDEO/S VIDEO)

jacks

7 VIDEO 2 (OPTICAL DIGITAL IN)

jack

8 COMPONENT VIDEO OUT jacks 9 FM 75Ω COAXIAL antenna jack

OPTICAL DIGITAL

MONITOR

OUT

S VIDEOVIDEO

VIDEO 2

DVD ONLY

SCAN SELECT

Front Panel Display

When playing back a DVD

Current sound

Playing status

Current chapter number

HCD-C770/C990

Lights up when you can change the angle

PCM

DIGITAL

PRO

LOGIC

ALL 1

DISC S

Play mode

Current surround format

TITLE CHAPTER H M S

Current title number Playing time

When playing back a Super Audio CD, CD, VIDEO CD, or MP3

Current index number (The index indicator does not appear during Super

Current sound

SACD

DIGITAL

ALL 1

DISC S

Play mode

Playing status

PCM

Audio CD or MP3 playback.)

TRACK INDEX M S

Current track number

Playing time

When listening to the radio

Preset number Monaural/Stereo effect

ANGLE

REPEAT 1

Current repeat mode

Lights up during PBC playback (VIDEO CD only)

REPEAT 1 PROG PBC SHUFFLE

Current play mode

FM AM

Current band

TUNED MONO ST

MHz

Current station

HCD-C770/C990

Remote

123 456

10/0

1 TV [/1 (on/standby) 2 Z (EJECT) 3 NAME 4 STEREO/MONO 5 MEMORY 6 CLEAR

7 PLAY MODE 8 AUDIO 9 ANGLE q; SUBTITLE qa VOL +/– qs ./> PREV/NEXT, TV CH –/+,

PRESET –/+

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

ql DISC SKIP w; TV/VIDEO wa REPEAT ws MUTING wd TIME wf FUNCTION

Note

This remote control glows in the dark. However, before glowing, the remote must be exposed to light for awhile.

wg BAND wh Number buttons wj SOUND FIELD wk DISPLAY wl ENTER e; COMMAND MODE DVD TV switch

ea m/M/

/ SLOW, TUNING –/+

es x STOP ed X PAUSE ef DVD MENU eg O RETURN eh AMP MENU

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SET

3-2. FRONT PANEL (AL)

SECTION, SIDE PANEL (L)/(R) (Page 10)

HCD-C770/C990

SECTION 3

DISASSEMBLY

3-3. MECHANISM DECK

(CDM69-DVBU16) (Page 10)

3-11. SW BOARD,

BRACKET (TOP) ASSY (Page 14)

3-16. RUBBER ROLLER

(SLIDER) ASSY (Page 17)

3-17. TIMING BELT

(FRONT/REAR) (Page 17)

3-7. POWER BOARD

(Page 12)

3-8. DVD BOARD

(Page 13)

3-9. OPTICAL PICK-UP

(DVBU16) (Page 13)

3-10. PICK-UP UNIT

(TDP022W) (Page 14)

3-15. MOTOR (STOCKER)

ASSY (MODE) (M761) (Page 16)

3-18. CAM (GEAR)

(Page 18)

3-6. AMP BOARD

(Page 12)

3-4. POWER SW

BOARD (Page 11)

3-5. AUDIO BOARD,

VIDEO BOARD (Page 11)

3-14. MOTOR (STOCKER)

ASSY (ROLLER) (M771) (Page 16)

3-13. MOTOR (STOCKER)

ASSY (STOCKER) (M781) (Page 15)

3-12. RELAY BOARD

(Page 15)

3-19. SENSOR BOARD

(Page 18)

HCD-C770/C990

Note: Follow the disassembly procedure in the numerical order given.

3-2. FRONT PANEL (AL) SECTION, SIDE PANEL (L)/(R)

front panel (AL) section

connector (CN807)

two screws

(BVTP3

side panel (L)

wire (flat type) (CN814)

connector (CN900)

three screws

(BVTP3

three screws

(BVTP3

3-3. MECHANISM DECK (CDM69-DVBU16)

four screws

(BVTP3

wire (flat type) (CN002)

two screws

(BVTP3

side panel (R)

mechanism deck (CDM69-DVBU16)

wire (flat type) (CN701)

3-4. POWER SW BOARD

)

power button section

power SW board

connector (CN901)

four

(BTP3

screws

two

(BVTP3

screws

connector (CN900)

two

screws

(BVTP3

HCD-C770/C990

screw (BVTP3

SEL board

MD cover sub ass

3-5. AUDIO BOARD, VIDEO BOARD

wire (flat type) (CN208)

audio board

wire (flat type) (CN203)

video board

connector (CN205)

two screws

(BVTP3

wire (flat type) (CN202)

wire (flat type) (CN201)

FM/AM tuner pack (DTP-001

four screws

(BVTP3

two screws

(BVTP2.6

HCD-C770/C990

)

3-6. AMP BOARD

wire (flat type) (CN305)

wire (flat type) (CN301)

connector (CN302)

four screws

(BVTP3

AMP board

3-7. POWER BOARD

connector (CN904)

connector (CN902)

four screws

(BVTP3

connector (CN903)

connector (CN904)

two screws (BVTP3

power sheet

power board

)

3-8. DVD BOARD

)

DVD board

two screws (BVTP3

wire (flat type) (CN006)

HCD-C770/C990

two screws

(BVTP3

two screws

(BVTP3

wire (flat type) (CN002)

wire (flat type (CN003)

3-9. OPTICAL PICK-UP (DVBU16)

wire (flat type) (CN401)

boss

optical

(DVBU16)

pick-up

boss

screw (PTPWHM2.6

HCD-C770/C990

)

3-10. PICK-UP UNIT (TDP022W)

step screw (M)

insulator

pick-up unit (TDP022W)

step screw (M)

insulator

step screw (M

flexible board

insulator

connector (CN003)

3-11. SW BOARD, BRACKET (TOP) ASSY

SW board (2)

four

screws

(BTP2.6

SW board (1)

bracket (top) assy

SW board (3)

holder (DBU1) section

SW board (4)

six screws (BVTP2.6

3-12. RELAY BOARD

– bottom view –

relay board

HCD-C770/C990

connector (CN708)

relay board

connector

Remove five solders.

(CN703)

3-13. MOTOR (STOCKER) ASSY (STOCKER) (M781)

two screws (BVTP2.6

stocker motor board

four screws

(BVTP2.6

connector (CN702)

Remove two solders

connector (CN710)

connector (CN761)

connector (CN706)

connecto (CN707)

motor (stocker) assy (stocker) (M781)

belt (stocker)

HCD-C770/C990

)

3-14. MOTOR (STOCKER) ASSY (ROLLER) (M771)

two screws

(BVTP2.6

motor (stocker) assy (roller) (M771)

Remove two solders.

roller motor board

3-15. MOTOR (STOCKER) ASSY (MODE) (M761)

Remove five solders of rotary encoder.

mode motor board

Remove two solders of motor (M761)

two screws

(BVTP2.6

belt (roller

mode motor board

motor (stocker) ass (mode) (M761)

belt (mode)

3-16. RUBBER ROLLER (SLIDER) ASSY

)

step screw

rubber roller (slider 4) assy

rubber roller (slider 2) assy

step screw

rubber roller (slider 1) assy

screw

(BVTP2.6

tension spring (slider 2)

step screw

tension spring (base slider 5)

rubber roller (slider 1) assy

HCD-C770/C990

step screw

rubber roller (slider S) assy

tension spring (base slider 5

rubber roller (slider 5) assy

sub chassis

3-17. TIMING BELT (FRONT/REAR)

slider (mode cam) assy

two gears (center)

timing belt (front)

two gears (center)

timing belt (rear)

When install three timing belts, its pass under each claws.

timing belt (rear)

claw

timing belt (rear)

claw

gear (timing)

gear (mode cam) : Note

screw

(PTPWH2.6

claw

timing belt (front)

Note: Refer to assembly (Section 4)

claw

HCD-C770/C990

3-18. CAM (GEAR)

cam (gear) : Note

screw (PTPWH2.6

gear (mode 2) :Note

screw (PTPWH2.6

Note: Refer to assembly (Section 4).

gear (mode 4)

screw

gear (mode 5)

screw (PTPWH2.6

gear (mode 3)

(PTPWH2.6

pulley (mode deceleration)

screw (PTPWH2.6

3-19. SENSOR BOARD

Note: Refer to assembly (Section 4).

screw (PTPWH2.6

cam (BU U/D)

cam (eject lock) : Note

gear (eject lock)

screw (PTPWH2.6

compression spring (shutter)

screw (BVTP2.6

screw (PTPWH2.6

harness

sensor board

shaft (shutter)

gear (mode 1)

screw (BVTP2.6

lever shutter (A)

claw

base (shutter) block

two screws (BVTP2.6

rotary encoder (S701)

screw (PTPWH2.6

two claws

SECTION 4

ASSEMBLY

• This set can be assembled in the order shown below.

4-1. HOW TO INSTALL THE CAM (EJECT LOCK)

Rotate the cam (BU U/D) fully in the direction of arrow.

Engage the gear (eject lock) and the gear of the cam (eject lock) aligning the mark with the center of the gear (eject lock).

cam (BU U/D)

HCD-C770/C990

Ver 1.5

mark

gear (eject lock)

4-2. HOW TO INSTALL THE CAM (GEAR)

Check that the cam (BU U/D) can not be rotated in the direction of arrow.

Align the mark on the cam (gear) with the boss as shown in the figure and install the cam (gear).

cam (gear)

cam (BU U/D)

cam (eject lock)

– bottom view • front –

boss

mark

– bottom view • front –

HCD-C770/C990

Ver 1.5

4-3. HOW TO INSTALL THE GEAR (MODE 2)

Align the mark on the rotary encoder (S701) with the projection of the assy.

Check that the cam (BU U/D) can not be rotated in the direction of arrow.

Install the gear (mode 2).

rotary encoder (S701)

gear (mode 2)

cam (BU U/D)

mark projection chassis

– bottom view • front –

4-4. HOW TO INSTALL THE GEAR (MODE CAM)

Slide the shaft in the direction of arrow.

Align mark A on the gear (mode cam) with mark B on the slider (mode cam) assy, then install the gear (mode cam).

Check that mark C on the gear (mode cam) is in alignment with mark D on the cam (gear).

mark

gear (mode cam)

shaft

slider (mode cam) assy

cam (gear)

mark

– bottom view • front –

mark

HCD-C770/C990

4-5. HOW TO INSTALL THE ROTARY ENCODER (S702), GEAR (STOCKER COMMUNICATION)

Engage the rotary encoder (S702) and the gear (stocker communication) as shown below in the figure.

rotary encoder (S702)

gear (stocker communication)

screw

(PWH2

rotary encoder (S702)

screw (PTPWH2.6

two screws

(PTPWH2.6

two gears (stocker communication)

Ver 1.5

gear (stocker communication)

– rear –

4-6. HOW TO INSTALL THE CAM (STOCKER U/D)

screw

(PTPWH2.6

cam (stocker U/D)

rotary encoder (S702)

screw

five

solders

relay board

Position the hole on the gear (stocker communication) on the screw of the rotary encoder (S702).

gear (stocker communication)

– rear –

hole

two screws

(PTPWH2.6

cam (stocker U/D)

mark

cam (stocker U/D)

To install three cams (stocker U/D), align each groove of the cam (stocker U/D) with each f mark on the chassis as shown in the figure.

cam (stocker U/D)

mark

two cams

(stocker U/D)

HCD-C770/C990

Ver 1.5

4-7. HOW TO INSTALL THE STOCKER ASSY

Fit three shafts of the stocker assy in respective slits of the cams (stocker U/D).

cam (stocker U/D)

Note: For the location of slits of the cams (stocker U/D),

see 4-6. HOW TO INSTALL CAM (STOCKER U/D).

cam (stocker U/D)

shaft shaftstocker assy

cam (stocker U/D)

shaft

pulley (stocker)

stocker assy

pulley (stocker)

Making sure that three shafts of the stocker assy fit in respective slits of the cams (stocker U/D), rotate the pulley (stocker) in the direction of arrow A by hand to store the stocker assy.

HCD-C770/C990

4-8. PHASE ADJUSTMENT BETWEEN PINIONS (SLIDER) AND SLIDER-1 TO 5 (L/R)

As shown in the following figure, adjust the portion A of each slider to the boss with the slider-1 to 5 (L) and the slider-1 to 5 (R) pushed in the arrow directions respectively (see Fig. 1).

Paying attention to the up/down direction of the pinion (slider) (see Fig. 2), install each pinion (slider) so that the portion

Note: Push in the pinion (slider) until the claw of the boss comes out above the pinion (slider) to lock.

of each pinion (slider) meshes with the portion A of each slider (see Fig. 3).

Ver 1.5

slider-5 (L)

slider-4 (L)

slider-3 (L)

slider-2 (L)

slider-1 (L)

(Fig. 1)

boss

claw

slider-5 (R)

slider-4 (R)

slider-3 (R)

slider-2 (R)

slider-1 (R)

boss

pinion (slider)

pinion (slider) portion

slider portion

(Fig. 2)

boss

(Fig. 3)

pinion (slider) portion

slider portion

claw

boss

pinion (slider)

HCD-C770/C990

Ver 1.4

SECTION 5

TEST MODE

[GENERAL DESCRIPTION]

The T est Mode allows you to make diagnosis and adjustment easil y using the remote commander and monitor TV. The instructions, diagnostic results, etc. are given on the on-screen display (OSD).

[TEST DISC LIST]

Use the following test disc on test mode. TDV-520CSO (DVD-SL): PART No. J-2501-236-A LIV-P01 (CD): PART No. 4-999-032-01 TDV-540C (DVD-DL): PART No. J-2501-235-A

Note: Do not use exiting test disc for DVD.

[STARTING TEST MODE]

1. Press the [POWER] button to turn the power on, and set the function to DVD.

2. While pressing the x and [DISPLAY] button, turn the

[VOLUME] knob clockwise to enter the test mode.

3. It displays “TEST MODE” on the fluorescent indicator tube, and displays the Test Mode Menu on the monitor screen as follows. (At the bottom of the menu screen, the model name and revision number are displayed)

Test Mode Menu

0. Syscon Diagnosis

1. Drive Auto Adjustment

2. Drive Manual Operation

3. Mecha Aging

4. Emergency History

5. Version Information

6. Video Level Adjustment

Exit: POWER Key Model :DAV-Cxxx Revision :x.xx

4. To execute each function, select the desired menu and press its number on the remote commander (RM-SS880J).

5. To release from test mode, press the [POWER] button and turn the power off.

[OPERATING TEST MODE]

0. SYSCON DIAGNOSIS

The same contents as board detail check by serial interface can be checked from the remote commander operation. On the Test Mode Menu screen, press [10/0] key on the remote commander, and the following Check Menu will be displayed.

### Syscon Diagnosis ###

Check Menu

0. Quit

1. All

2. Version

3. EEPROM

4. SPIO

5. SD Bus

6. Video

7. Audio

0-1. All (All items continuous check)

This menu checks all diagnostic items continuously. Normally, all items are checked successively one after another automatically unless an error is found, but at a certain item that requires judgment through a visual check to the result, the following screen is displayed for the key entry.

• Example display

### Syscon Diagnosis ###

Diag All Check

No.2 Version

2-3. ROM Check Sum

Check Sum = 2320

Press NEXT Key to Continue Press PREV Key to Repeat

For the ROM Check, the check sum calculated by the Syscon is output, and therefore you must compare it with the specified value for confirmation. Following the message, press the [NEXT ] button to go to the next item, or press the [ PREV] button to repeat the same operation again. To quit the diagnosis and return to Check Menu screen, press the

[RETURN] key on the remote commander to display Check Menu.

• Error occurred

If an error occurred, the diagnosis is suspended and error is displayed. Press the [RETURN] key on the remote commander to quit the diagnosis, or press the [ PREV] button to repeat the same check where an error occurred, or press the [NEXT ] button to continue the check from the item next to faulty item.

General Description of Checking Method

Selecting 2 and subsequent items calls the submenu screen of each item. And selecting 2 and subsequent items executes respective menus and outputs the results. For the contents of each submenu, see “Check Items List” as below .

Check Items List:

0-2. Version

0-2-1. All 0-2-2. Revision 0-2-3. ROM Check Sum 0-2-4. Model Type 0-2-5. Region

0-3. EEPROM Check

0-3-1. Sampling Check

0-3-2. Detail Check 0-4. GP I/O Check 0-5. SD Bus Check 0-6. Video Check 0-7. Audio Check

0-0. Quit

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

0-2. Version

0-2-2. Revision

The revision number of ROM (IC204) tha t the program for the DVD system processor (IC206) is stored. (4 digits hexadecimal number)

HCD-C770/C990

0-2-3. ROM Check Sum

The revision number of ROM (IC204) that the program f or the DVD system processor (IC206) is stored.

0-2-4. Model Type

Model name is displayed. (DAV-C770 or DAV-C990)

0-2-5. Region

Model destination code is displayed. (2 digits number)

0-3. EEPROM Check

0-3-1. Sampling Check

EEPROM check at every 64 words. It compares read data with write data of each address. When there are discrepancies between two data, it displays error.

0-3-2. Detail Check

EEPROM check at every 1 word. It compares read data with write data of each address. When there are discrepancies between two data, it displays error.

0-4. GP I/O Check

Pull up/down setting check of the DVD system processor (IC206) pin 150, 151 and 154 (for clock setting port).

0-5. SD Bus Check

SD bus data check between DVD decoder (IC701) and D-RAM (IC706).

0-6. Video Check

Output the color bars for video level adjustment.

0-7. Audio Check

Output the test signal (1kHz sine wave) for 5.1 CH test.

1. DRIVE AUTO ADJUSTMENT

On the Test Mode Menu screen, press the [1] ke y on the remote commander, and the Adjustment Menu will be displayed.

## Drive Auto Adjustment ##

Adjustment Menu

0. ALL

1. DVD-SL

2. CD

3. DVD-DL

specified disc following the message. Y ou can finish the adjustment by pressing the

Note: During adjustment of each disc, the measurement for disc type judg-

ment is made. As automatic adjustment does not judge the disc type unlike conventional models, take care not to insert wrong type discs. Also, do not give a shock during adjustment.

1-1. DVD-SL (single layer)

Press the [1] key on the remote commander and insert a DVD single layer disc following the message. Then the adjustment will be made through the steps below, then adjusted values will be written to the EEPROM.

DVD Single Layer Disc Adjustment Steps:

1. Sled tilt reset

2. Disc check memory SL

3. Wait 300 msec

4. Set disc type SL

5. LD on

6. Spindle start

7. Wait 1 sec

8. Focus servo on 0

9. Auto track offset adjust

10. CLVA on

11. Wait 500 msec

12. Tracking on

13. Wait 1 sec

14. Sled on

15. Check CLV on

16. Auto LFO adjust

17. Auto focus offset adjust

18. Auto tilt position adjust

19. Auto focus gain adjust

20. Auto focus offset adjust

21. EQ boost adjust

22. Auto loop filter offset adjust

23. Auto track gain adjust Search Check

28. All servo stop

29. EEP copy loop filter offset

1-2. CD

Press the [2] key on the remote commander and insert a CD disc following the message. Then the adjustment will be made through the steps below , then adjusted values will be written to the EEPR OM.

[RETURN] button on the remote commander.

24. 32 track jump forward

25. 32 track jump reverse

26. 500 track jump forward

27. 500 track jump reverse

Exit: RETURN

Normally, [10/0] is selected to adjust DVD (single layer), CD and DVD (dual layer) in this order . But, individual items can be adjusted for the case where adjustment is suspended due to an error. In this mode, the adjustment can be made easily through the operation following the message displayed on the screen. The disc used for adjustment must be the one specified for adjustment.

1-0. ALL

Press the [10/0] key on the remote commander, and the servo set data in EEPROM will be initialized. Then, 1. DVD-SL disc, 2. CD disc and 3. DVD-DL disc are adjusted in this order. Each time one disc was adjusted, it is ejected. Replace it with the

CD Adjustment Steps

1. Sled tilt rest

2. Disc check memory CD

3. Wait 500 msec

4. Set disc type CD

5. LD on

6. Spindle start

7. Wait 500 msec

8. Focus servo on 0

9. Auto track offset adjust

10. CLVA on

11. Wait 500 msec

12. Tracking on

13. (TC display start)

14. Wait 1 sec

15. Jitter display start

16. Sled ON

HCD-C770/C990

17. Check CLV on

18. Auto loop filter offset adjust

19. Auto focus offset adjust

20. Auto focus gain adjust

21. Auto focus offset adjust

22. EQ boost adjust

23. Auto LFO Adjust

24. Auto track gain adjust Search Check

25. 32Tj forward

26. 32Tj reverse

27. 500Tj forward

28. 500Tj reverse

29. All servo stop

1-3. DVD-DL (dual layer)

Press the [3] key on the remote commander and insert a DVD dual layer disc following the message. Then the adjustment will be made through the steps below, then adjusted values will be written to the EEPROM.

DVD Dual Layer Disc Adjustment Steps:

1. Sled tilt reset

2. Disc check memory DL

3. Wait 500 msec

4. Set disc type DL

5. LD on

6. Spindle start

7. Wait 1 sec

Layer 1 Adjust

8. Focus servo on 0

9. Auto track offset adjust

10. CLVA on

11. Wait 500 msec

12. Tracking on

13. Wait 500 msec

14. Sled on

15. Check CLV lock

16. Auto loop filter offset adjust, Auto focus adjust

17. Auto focus gain adjust

18. Auto focus offset adjust

19. EQ boost adjust

20. Auto loop filter offset adjust

21. Auto Track Gain Adjust Search Check

22. 32 track jump forward

23. 32 track jump reverse

24. 500 track jump forward

25. 500 track jump reverse

Layer 0 Adjust

26. Focus jump (L1 t L0)

27. Auto track offset adjust L0

28. CLVA on

29. Wait 500 msec

30. Tracking on

31. Wait 500 msec

32. Sled on

33. Check CLV lock

34. Auto focus filter offset adjust

35. Auto Focus Adjust

36. Auto focus gain adjust

37. Auto focus offset adjust

38. EQ boost adjust

39. Auto Loop Filter Offset

40. Auto track gain adjust Search Check

41. 32 track jump forward

42. 32 track jump reverse

43. 500 track jump forward

44. 500 track jump reverse

Layer Jump Check

45. Layer jump (L0 ? L1)

46. Layer jump (L1 ? L0)

47. All servo stop

2. DRIVE MANUAL OPERATION

Note: This mode is used for design, and not used in service fundamen-

tally.

On the Test Mode Menu screen, press the [2] key on the remote commander, and the Operation Menu will be displayed. For the manual operation, each servo on/off control and adjustment can be executed manually.

## Drive Manual Operation ##

Operation Menu

1. Disc Type

2. Servo Control

3. Track/Layer Jump

4. Non EEPROM Write Adjust

5. EEPROM Write Adjust

6. Memory Check

7. Disc Check Memory

8. Error Rate Display

9. SACD Water Mark

Exit: RETURN

In using the manual operation menu, take care of the following points. These commands do not provide protection, thus requiring correct operation. The sector address or time code field is displayed when a disc is loaded.

Note:

1. Set correctly the disc type to be used on the Disc Type screen.

2. In case of an alarm, immediately press the x button to stop the servo operation, and press the [POWER] button to turn the power off.

Basic operation:

(controllable from front panel or remote commander)

[POWER] :Power OFF (release the Test Mode)

x : Servo stop

Z (DISC1 to 4) : Stop and eject/Loading

[RETURN] : Return to Operation Menu or Test

Mode Menu

[ PREV], [NEXT ] :Transition between sub modes of menu

[1] to [9], [10/0] : Selection of menu items

Cursor o/

: Increase/Decrease in manually

adjusted value

HCD-C770/C990

2-1. Disc Type

Disc Type

Disc Type Select

1. Disc Type Auto Check

2. Set Disc Type DVD

3. Set Disc Type CD

4. Set Disc Type Hybrid

Exit: RETURN

2-1-1. Disc Type Auto Check

1) Press the [1] key on the remote commander to display the Disc Type Auto Check screen.

2) Insert a disc and press the [ENTER] key on the remote commander.

3) It judges the type of inserted disc automatically and displays the disc type and so on as below.

Disc Type Auto Check

Disc Type xx Layer xx Mirr Time xx Mirr Count xx FZC Count xx PI Reference xx PI Peak xx

2-1-3. Disc Type CD It sets up so that it may judge as a disc type of specification of the disc with which the set was inserted.

[1]: CD disc (normal speed, 12 cm) [2]: CD disc (double speed, 12 cm) [3]: CD disc (normal speed, 8 cm) [4]: CD disc (double speed, 8 cm) [5]: CD-RW disc (normal speed, 12 cm) [6]: CD-RW disc (double speed, 12 cm) [7]: CD-RW disc (normal speed, 8 cm) [8]: CD-RW disc (double speed, 8 cm)

2-1-4. Disc Type Hybrid It sets up so that it may judge as a disc type of specification of the disc with which the set was inserted.

[1]: SACD Hybrid disc (SACD layer, 12 cm) [2]: SACD Hybrid disc (CD layer, normal speed, 12 cm) [3]: SACD Hybrid disc (CD layer, double speed, 12 cm) [4]: SACD Hybrid disc (SACD layer, 8 cm) [5]: SACD Hybrid disc (CD layer, normal speed, 8 cm) [6]: SACD Hybrid disc (CD layer, double speed, 8 cm)

2-2. Servo Control

Note: Be sure to perform the disc type setup before performing this item.

Servo Control

1.LD off R.Sled FWD

2.Focus off L.Sled REV

3.SPDL off U.Sled Reset

4.CLVA off D.Sled Limit

5.Trk. off

6.Sled off

7.Fcs.Srch off

8.Fcs.OppL off

ENTER.Execute

Exit: RETURN

Disc Type : CD, DVD or Hybrid (SACD) Layer : SINGLE, DUAL or HYBRID Mirr Time : Mirror time of between disc surface and record

surface when disc type judgment. (hexadecimal number)

Mirr Count : The number of times which mirror counts between

disc surface and record surface when disc type judging. (hexadecimal number)

FZC Count : The number of times which focus zero cross points

of each layer when lens down. (hexadecimal number)

PI Reference : The average of PI reference voltage. (hexadecimal

number)

PI Peak : PI peak level voltage. It performs only when disc

type judgment is successful. (hexadecimal number)

2-1-2. Disc Type DVD It sets up so that it may judge as a disc type of specification of the disc with which the set was inserted.

[1]: DVD single layer disc (12 cm) [2]: DVD dual layer disc (0 layer, 12 cm) [3]: DVD dual layer disc (1 layer, 12 cm) [4]: DVD-RW disc (12 cm) [5]: DVD single layer disc (8 cm) [6]: DVD dual layer disc (0 layer, 8 cm) [7]: DVD dual layer disc (1 layer, 8 cm)

0.All Servo Off

Exit: RETURN

On this screen, the servo on/off control necessary for replay is executed. Normally, turn on each servo from 1 sequentially and when CLVA is turned on, the usual trace mode becomes active. In the trace mode, DVD sector address or CD time code is displayed. This is not displayed where the spindle is not locked. The spindle could run overriding the control if the spindle system is faulty or RF is not present. In such a case, do not operate CLVA.

[1] LD :Turn on/off the laser. [2] Focus : Search the focus and turn on the focus. [3] SPDL :Turn on/off the spindle. [4] CLVA : Turn on/off normal servo of spindle servo. [5] Trk. :Turn on/off the tracking servo. [6] Sled : Turn on/off the sled servo. [7] FCS. Srch : Turn on/off the focus search. [8] FCS. OppL :T urn on/of f the f ocus search to another layer

of designated layer in Disc T ype setting. (dual layer disc only)

[10/0] :All servo off. [R] Sled FWD (right cursor) :Move the sled forward. [L] Sled REV (left cursor) : Move the sled reverse. [U] Sled FWD (up cursor) : Reset the sled. [D] Sled REV (down cursor): Limit in the sled.

HCD-C770/C990

2-3. Track/Layer Jump

Track/Layer Jump

1. 1Tj FWD R.Lj L0>L1

2. 1Tj REV L.Lj L1>L0

3.500Tj Fine FWD U.Fj L0>L1

4.500Tj Fine REV D.Fj L1>L0

5.10kTj Dirc FWD

6.10kTj Dirc REV

7.20kTj Dirc FWD

8.20kTj Dirc REV

0. All Servo Off

Exit: RETURN

On this screen, track jump, etc. can be performed. Only for the DVD dual layer disc, the focus jump and layer jump are displayed in the right field

[1] 1Tj FWD : 1 track jump forward. [2] 1Tj REV : 1 track jump reverse. [3] 500Tj FWD: 500 track jump (fine search)forward. [4] 500Tj REV : 500 track jump (fine search) reverse. [5] 10kTj FWD: 10k track jump (direct search) forward. [6] 10kTj REV : 10k track jump (direct search) reverse. [7] 20kTj FWD: 20k track jump (direct search) forward. [8] 20kTj REV : 20k track jump (direct search) reverse. [10/0] : All servo off.

2-4. Non EEPROM Write Adjust

2-5. EEPROM Write Adjust

EEPROM Write Adjust

1. Focus Offset

2. Focus Gain

3. Trk. Offset Coarse

4. ——————

5. Trk. Gain

6. EQ Boost

0.All Servo Off

Exit: RETURN

On this screen, each item can be adjusted automatically. Select the desired number [1] to [10/0] from the remote commander, and selected item is adjusted automatically.

[1] Focus Offset: Adjusts focus offset. [2] Focus Gain : Adjusts focus gain. [3] TRK. Offset : Adjusts tracking offset of the RF amp

(IC001) side.

[5] TRK. Gain : Adjusts track gain. [6] EQ Boost : Adjusts amount of boost of equalizer. [10/0] : All servo off.

2-6. Memory Check

Display images are shown as follows, and all two screens are able to switch by theOkey (UP) or okey (DW).

Non EEPROM Write Adjust

1. Focus Offset

2. Focus Gain

3. Trk. Offset Coarse

4. Trk. Offset Fine

5. Trk. Gain

6. EQ Boost

0.All Servo Off

Exit: RETURN

On this screen, each item can be adjusted manually. Select the desired number [1] to [10/0] from the remote commander, and current setting for the selected item will be displayed, then increase or decrease numeric value with theOkey or okey. This value is stored in the EEPROM. If CLV has been applied, the jitter is displayed for reference for the adjustment.

[1] Focus Offset: Adjusts focus offset. [2] Focus Gain : Adjusts focus gain. [3] TRK. Offset : Adjusts tracking offset of the RF amp

(IC001) side.

[4] TRK. Offset : Adjusts tracking offset of the DSP (IC401)

side.

[5] TRK. Gain : Adjusts track gain. [6] EQ Boost : Adjusts amount of boost of equalizer. [10/0] : All servo off.

EEPROM Data 1/2 CD SL L0 L1 Focus Gain xx xx xx xx Trk. Gain xx xx xx xx Focus Offset xx xx xx xx Trk. Offset xx xx xx xx EQ. Boost xx xx xx xx PI Level xx xx -- -Fcs. Balance -- xx -- -Jitter xx xx xx xx Mirror Time xx xx xx -FE Level -- xx -- -Traverse Lv1. -- xx -- -Next:DW Default:CLR Exit:RET

EEPROM Data 2/2 CDRW DVDRW Focus Gain xx xx Trk. Gain xx xx Focus Offset xx xx Trk. Offset xx xx EQ. Boost xx xx

Next:UP Default:CLR Exit:RET

On this screen, current servo adjusted data stored in the EEPROM are displayed. The adjusted data are initialized by pressing the

[CLEAR] key, but be careful that they are not recoverable after

initialization. Before clearing the adjusted data, make a note of the set data. This screen will also appear if [0]-All is selected in the Drive Auto Adjustment. In this case, default setting cannot be made.

HCD-C770/C990

2-7. Disc Check Memory

Disc Check Memory

1. SL Disc check

2. SL Disc check

3. SL Disc check

Exit: RETURN

On this screen, measure the mirror time of chucked disc, and write to the EEPROM.

2-8. Error Rate Display

Error Rate Display

UC CR ADD

PI1 Err Now xx xxxx xxxxxxxx

Max xx xxxx xxxxxxxx Avg xx xxxx xxxxxxxx

PI2 Err Now xx xxxx xxxxxxxx

Max xx xxxx xxxxxxxx Avg xx xxxx xxxxxxxx

PO Err Now xx xxxx xxxxxxxx

Max xx xxxx xxxxxxxx Avg xx xxxx xxxxxxxx

Exit: RETURN

On this screen, measure and display the error rate.

3. MECHA AGING

On the T est Mode Menu screen, selecting [3] executes the aging of the mechanism deck.

### Aging Test MENU ###

Operation Menu

1. Open/Close Test

Exit: RETURN

1) On the Aging Test MENU screen, press the [1] key on the remote commander to display the Open/Close Test screen.

2) Insert discs and press the [ENTER] key on the remote commander.

3) Is starts the aging. During aging, the disc number, operating status and repeat cycle are displayed. Aging can be aborted at any time by pressing the x key. After the operation is stopped, press the x key or

[RETURN] key aging to return to the Aging Test MENU.

4. EMERGENCY HISTORY

On the Test Mode Menu screen, selecting [4] displays the information such as servo emergency history. The history information from last 1 up to 10 can be scrolled with theOkey orokey. Also, specific information can be displayed by directly entering that number with ten keys.

UC : Incorrect value CR : Correct value Add: Address

2-9. SACD Water Mark Check

SACD Water Mark Check

PSP AMP PSN

Start: ENTER Exit: RETURN

On this screen, measure the PSP AMP v alue and PSN value of SACD water mark.

### EMG. History ###

Laser Hours CD xxxxhxxm

DVD xxxxhxxm

a. bb xx xx xx xx xx xx xx

xx xx xx xx xx xx xx xx

a. bb xx xx xx xx xx xx xx

xx xx xx xx xx xx xx xx

Select:1-9 Scroll:UP/DOWN (1.Latest EMG.) Exit: RETURN

xxxxhxxm: The laser on total hours. Data below minutes are

omitted. a. : Error number. bb : Error code. xx : Not used.

• Clearing History Information

Clearing laser hours:

Press the [DVD DISPLAY] and [CLEAR] keys in this order. Then both CD and DVD data are cleared.

Clearing emergency history:

Press the [DVD TOP MENU] and [CLEAR] keys in this order .

Initializing set up data:

Press [DVD MENU] and [CLEAR] keys in this order. The data have been initialized when “Set Up Initialized” message is displayed. The EMG. History screen will be restored soon.

HCD-C770/C990

• Code list of Emergency History

10: Communication to RF AMP (IC001) failed. 11: Each servo for focus, tracking, and spindle is unlocked. 12: Check sum error of EEPROM (IC203). 14: Communication to servo DSP (IC401) failed, or servo DSP

decoder (IC801) is faulty.

15: Communication to DVD decoder (IC701) failed, or DVD

decoder (IC801) is faulty.

16: Communication to DSD decoder (IC801) failed, or DSD

decoder (IC801) is faulty.

20: Initialization of sled servo failed. It is not placed in the ini-

tial position. 23: Sled servo operation error. 24: Made a request to move the sled servo to wrong position. 30: Tracking balance adjustment error. 31: Tracking gain adjustment error. 33: Focus bias adjustment error. 34: Focus gain adjustment error. 35: Equalizer adjustment error. 40: Focus servo does not operate. 41: With a DVD dual layer disc, focus jump failed. 50: CLV (spindle) servo does not operate. 51: Spindle does not stop. 60: Made a request to seek nonexistent address. 61: Seek error of retry more than regulated times. 70: Control data could not be read. 80: Disc reading failed.

5. MECHA ERROR HISTORY

On the T est Mode Menu screen, selecting [5] displays the information of mechanism deck error history. The history information from last 1 up to 8 can be scrolled with the

key orokey. Also, specific information can be displayed by

directly entering that number with ten keys.

### Mecha Error History ###

1. aa bb cc dd xx xx xx xx

2. aa bb cc dd xx xx xx xx

3. aa bb cc dd xx xx xx xx

4. aa bb cc dd xx xx xx xx

5. aa bb cc dd xx xx xx xx

6. aa bb cc dd xx xx xx xx

7. aa bb cc dd xx xx xx xx

8. aa bb cc dd xx xx xx xx

Scroll:UP/DOWN

(1.Latest Err.) Exit: RETURN

aa : The error in the midst of initializing the mechanism deck. bb : The error in the midst of loading operation. cc : The error in the midst of up/down the stocker. dd : The error in the midst of switching the mechanism deck mode. xx : Not used.

• Error code (aa)

FF : Complete the initializing. (normal operation) 11 : Stocker movement (to chucking position) failing in the midst

of initializing the mechanism deck.

12 : Stocker movement (to chucking position) failing in the midst

of initializing the mechanism deck. 1x : Initializing the mechanism deck. 2x : Initializing the mechanism deck. 3x : Initializing the mechanism deck. 41 : Disc eject failing in the midst of initializing the mechanism

deck. 4x : Initializing the mechanism deck. 50 : Disc eject failing in the midst of initializing the mechanism

deck. 5x : Initializing the mechanism deck. A2 : Disc eject failing in the midst of initializing the mechanism

deck. Ax : Initializing the mechanism deck. D3 : Disc eject failing in the midst of initializing the mechanism

deck. Dx : Initializing the mechanism deck. Ex : Initializing the mechanism deck.

• Error code (bb) 00 : Initializing the mechanism deck. 10 : Retry over of eject and loading. 30 : Open operation in no disc status. 60 : Retry over of eject and loading. 70 : Disc is chucking position. 81 : Retry failed of disc movement from chucking position to

stocker. 83 : Retry preparation failed of disc movement from chucking

position to stocker. 90 : Disc is stored in the stocker. A1 : Retry failed of disc movement from stocker to chucking

position. A3 : Retry preparation failed of disc movement from stocker to

chucking position. B0 : Just before the release operation. B1 : Retry failed of the release operation.

• Error code (cc)

10 : Under a stop. 22 : Retry preparation failed. 23 : Retry failed.

• Error code (dd)

10 : Under a stop. 22 : Retry preparation failed. 23 : Retry failed.

+ 112 hidden pages

Sony HCDC-990 Service manual

SELF DIAGNOSIS FUNCTION

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

3-1. DISASSEMBLY FLOW

DISASSEMBLY

3-2. FRONT PANEL (AL) SECTION, SIDE PANEL (L)/(R)

mechanism deck (CDM69-DVBU16)

power SW board

3-5. AUDIO BOARD, VIDEO BOARD

AMP board

power board

DVD board

3-9. OPTICAL PICK-UP (DVBU16)

pick-up unit (TDP022W)

relay board

motor (stocker) assy (stocker) (M781)

motor (stocker) assy (roller) (M771)

sensor board

ASSEMBLY

4-1. HOW TO INSTALL THE CAM (EJECT LOCK)

4-2. HOW TO INSTALL THE CAM (GEAR)

4-3. HOW TO INSTALL THE GEAR (MODE 2)

4-4. HOW TO INSTALL THE GEAR (MODE CAM)

4-5. HOW TO INSTALL THE ROTARY ENCODER (S702), GEAR (STOCKER COMMUNICATION)

4-6. HOW TO INSTALL THE CAM (STOCKER U/D)

4-7. HOW TO INSTALL THE STOCKER ASSY

4-8. PHASE ADJUSTMENT BETWEEN PINIONS (SLIDER) AND SLIDER-1 TO 5 (L/R)

TEST MODE