Sony HCD-GN90D, HCD-GN100D Service Manual

HCD-GN90D/GN100D

SERVICE MANUAL

Ver 1.0 2004. 07

• HCD-GN90D/GN100D are the Amplifier, DVD player, tape deck and tuner section in MHC-GN90D/GN100D.

This system incorporates Dolby* Digital, Dolby Pro Logic (II) adaptive matrix surround decoder, and the DTS** Digital Surround System. * Manufactured under license from Dolby Laboratories.

“Dolby”, “Pro Logic”, and the double-D symbol are trademarks of Dolby Laboratories.

** Manufactured under license from Digital Theater

Systems, Inc, “DTS” and “ DTS Digital Surround” are registered trademarks of Digital Theater Systems. Inc.

DVD DVD Mechanism Type CDM74D2-DVBU62

Section Base Unit Name DVBU62

TAPE

Section

E Model

HCD-GN90D/GN100D

Australian Model

HCD-GN100D

Model Name Using Similar Mechanism NEW

Optical Pick-up Name DBU-3

Model Name Using Similar Mechanism NEW

SPECIFICATIONS

Amplifier section

MHC-GN100D

The following are measured at AC 120, 127, 220, 240V 50/60 Hz DIN power output (rated) Front speaker: 180 + 180 watts (6 ohms at 1 kHz, DIN) Center speaker: 60 watts (8 ohms at 1 kHz, DIN) Surround speaker: 60 + 60 watts (8 ohms at 1 kHz, DIN)

Continuous RMS power output (reference) Front speaker: 235 + 235 watts

(6 ohms at 1 kHz, 10% THD) Center speaker: 80 watts (8 ohms at 1 kHz, 10% THD) Surround speaker: 80 + 80 watts

(8 ohms at 1 kHz, 10% THD)

MHC-GN90D

The following are measured at AC 120, 127, 220, 240V 50/60 Hz DIN power output (rated) Front speaker: 125 + 125 watts (6 ohms at 1 kHz, DIN) Center speaker: 30 watts (8 ohms at 1 kHz, DIN) Surround speaker: 30 + 30 watts (8 ohms at 1 kHz, DIN)

Continuous RMS power output (reference) Front speaker: 170 + 170 watts

(6 ohms at 1 kHz, 10% THD) Center speaker: 50 watts (8 ohms at 1 kHz, 10% THD) Surround speaker: 50 + 50 watts

(8 ohms at 1 kHz, 10% THD)

Inputs GAME INPUT (VIDEO): 1 Vp-p, 75 ohms (phono jack) GAME INPUT (AUDIO): Voltage 250 mV, (phono jacks) impedance 47 kilohms VIDEO/SAT (AUDIO) IN: voltage 450 mV/250 mV, (phono jacks) impedance 47 kilohms MIC: sensitivity 1 mV, (phone jack) impedance 10 kilohms

Outputs AUDIO OUT: Voltage 250 mV (phono jacks) impedance 1 kilohms VIDEO OUT: max. output level 1 Vp-p, (phono jack) unbalanced, Sync.

negative load impedance

75 ohms COMPONENT VIDEO OUT: Y: 1 Vp-p, 75 ohms

PB/CB: 0.7 Vp-p, 75 ohms

PR/CR: 0.7 Vp-p, 75 ohms

– Continued on next page –

MiNi Hi-Fi COMPONENT SYSTEM

9-877-976-01

2004G02-1

Sony Corporation

Home Audio Company Published by Sony Engineering Corporation

HCD-GN90D/GN100D

S VIDEO OUT (4-pin/mini-DIN jack): Y: 1 Vp-p, unbalanced,

Sync negative C: 0.286 Vp-p load

impedance 75 ohms PHONES: accepts headphones of (stereo mini jack) 8 ohms or more FRONT SPEAKER: Use only the supplied speaker SUBWOOFER OUT: Voltage 250 mV (phono jack) impedance 1 kilohms SURROUND SPEAKER: Use only the supplied speakers CENTER SPEAKER: Use only the supplied speaker

Disc player section

System Compact disc and digital

audio and video system Laser Semiconductor laser

(DVD: λ = 650 nm,

CD: λ = 780 nm)

Emission duration: continuous Frequency response DVD (PCM 48 kHz):

2 Hz – 22 kHz (±1dB)

CD: 2 Hz – 20 kHz (±0.5 dB) Video color system format NTSC, PAL (except Latin American models)

Tape deck section

Recording system 4-track 2-channel stereo Frequency response 50 – 13,000 Hz (±3 dB),

using Sony TYPE I tape

Dimensions (w/h/d) (Approx.) HCD-GN100D/GN90D 280 x 360 x 394.5 mm Mass (Approx.) HCD-GN100D 16.1 kg HCD-GN90D 15.2 kg

Design and specifications are subject to change without notice.

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 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.

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range 87.5 – 108.0 MHz (50 kHz step) Antenna FM lead antenna Antenna terminals 75 ohm unbalanced Intermediate frequency 10.7 MHz

AM tuner section

Tuning range Latin American models: 530 – 1,710 kHz

(with the interval set at 10 kHz) 531 – 1,710 kHz (with the interval set at 9 kHz)

Saudi Arabian models: 531– 1,602 kHz

(with the interval set at 9 kHz)

Other models: 531 – 1,602 kHz

(with the interval set at 9 kHz) 530 – 1,710 kHz

(with the interval set at 10 kHz) Antenna AM loop antenna Antenna terminals External antenna terminal Intermediate frequency 450 kHz

General

Power requirements Australian model: 230 – 240 V AC, 50/60 Hz Mexican model: 127 V AC, 60 Hz Saudi Arabian models: 120 – 127 V, 220V or

230 – 240 V AC, 50/60 Hz

Adjustable with voltage selector. Other models: 120 V, 220 V or

230 – 240 V AC, 50/60 Hz

Adjustable with voltage selector Power consumption MHC-GN100D 390 watts MHC-GN90D 275 watts

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

This following caution label is located inside the apparatus.

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.

HCD-GN90D/GN100D

1. SERVICING NOTES ................................................ 4

2. GENERAL

Location of Controls ........................................................ 5

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 7

3-2. Case ................................................................................. 8

3-3. Loading Panel Assy ......................................................... 8

3-4. Front Panel Assy .............................................................. 9

3-5. DVD Mechanism Deck (CDM74D2-DVBU62) ............. 9

3-6. Tape Mechanism Deck, Game Board .............................. 10

3-7. CD SW Board, Panel Board ............................................ 10

3-8. Switch Board ................................................................... 11

3-9. Tuner Pack ....................................................................... 11

3-10. Bracket Top, Bracket Sub ................................................ 12

3-11. Primary Board ................................................................. 12

3-12. DMB07 Board, Video Board ........................................... 13

3-13. Rear Panel ........................................................................ 13

3-14. Main Board, Power Board Assy ...................................... 14

3-15. Surround Board, PA Board .............................................. 14

3-16. Power Transformer (T601) .............................................. 15

3-17. Driver Board, SW Board ................................................. 15

3-18. RF Board, Optical Pick-Up (DBU-3) .............................. 16

3-19. Sensor Board ................................................................... 16

3-20. Motor (TB) Board ........................................................... 17

3-21. Motor (LD) Board ........................................................... 17

4. TEST MODE .............................................................. 18

5. MECHANICAL ADJUSTMENTS ....................... 27

6. ELECTRICAL ADJUSTMENTS

Deck section .................................................................... 27

Video Section .................................................................. 28

7. DIAGRAMS

7-1. Block Diagram – DVD Section (1/2) – .......................... 32

7-2. Block Diagram – DVD Section (2/2) – .......................... 33

7-3. Block Diagram – Tuner/Tape Section – ......................... 34

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

7-5. Block Diagram – Display/Power Section – .................... 36

7-6. Block Diagram – Amp Section – .................................... 37

7-7. Printed Wiring Board – RF Board – ............................... 38

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

7-9. Printed Wiring Board – DVD Mechanism Board – ....... 40

7-10. Schematic Diagram – DVD Mechanism Board – .......... 41

7-11. Printed Wiring Board – DMB07 Board (Side A) – ........ 42

7-12. Printed Wiring Board – DMB07 Board (Side B) – ........ 43

7-13. Schematic Diagram – DMB07 Board (1/6) – ................. 44

7-14. Schematic Diagram – DMB07 Board (2/6) – ................. 45

7-15. Schematic Diagram – DMB07 Board (3/6) – ................. 46

7-16. Schematic Diagram – DMB07 Board (4/6) – ................. 47

7-17. Schematic Diagram – DMB07 Board (5/6) – ................. 48

7-18. Schematic Diagram – DMB07 Board (6/6) – ................. 49

7-19. Printed Wiring Board – Video Board – .......................... 50

7-20. Schematic Diagram – Video Board – ............................. 51

7-21. Printed Wiring Boards – Main Board – .......................... 52

7-22. Schematic Diagram – Main Board (1/4) – ..................... 53

7-23. Schematic Diagram – Main Board (2/4) – ..................... 54

7-24. Schematic Diagram – Main Board (3/4) – ..................... 55

7-25. Schematic Diagram – Main Board (4/4) – ..................... 56

7-26. Printed Wiring Board – Panel Board – ........................... 57

7-27. Schematic Diagram – Panel Board (1/2) – .................... 58

7-28. Schematic Diagram – Panel Board (2/2) – .................... 59

7-29. Printed Wiring Boards

– Game, CD SW Board – ................................................ 60

7-30. Schematic Diagram

– Game, CD SW Board – ................................................ 61

7-31. Printed Wiring Board – PA Board – ............................... 62

7-32. Schematic Diagram – PA Board – .................................. 63

7-33. Printed Wiring Board – Surround Board – ..................... 64

7-34. Schematic Diagram – Surround Board – ........................ 65

7-35. Printed Wiring Boards – Primary Board – ..................... 66

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

7-37. Circuit Board Location .................................................... 68

7-38. IC Block Diagram ........................................................... 69

8. EXPLODED VIEWS

8-1. Case, Rear Panel Section ................................................. 85

8-2. Front Panel Section ......................................................... 86

8-3. Chassis Section ................................................................ 87

8-4. DVD Mechanism Deck Section-1

(CDM74D2-DVBU62) ................................................... 88

8-5. DVD Mechanism Deck Section-2

(CDM74D2-DVBU62) ................................................... 89

9. ELECTRICAL PARTS LIST ................................ 90

HCD-GN90D/GN100D

SECTION 1

SERVICING NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

LASER DIODE AND FOCUS SEARCH OPERATION CHECK

Carry out the “S curve check” in “CD section adjustment” and check that the S curve waveform is output several times.

• MODEL IDENTIFICATION – Back Panel –

MODEL PART No.

GN100D : SP, MY models 4-254-995-1[] GN100D : EA model 4-254-995-2[] GN100D : E3, E15 models 4-254-995-3[] GN100D : PH model 4-254-995-4[] GN100D : AUS model 4-254-995-5[] GN100D : MX model 4-254-995-6[] GN90D : EA model 4-254-997-0[] GN90D : SP models 4-254-997-1[] GN90D : E15 model 4-254-997-2[] GN90D : PH model 4-254-997-3[]

PAR T N o.

•Abbreviation E3 : 240 V AC Area in E model E15 : Iran model AUS : Australian model MX : Mexican model PH : Philippine model SP : Singapore model MY : Malaysia model EA : Saudi Arabia model

SECTION 2

41 3 65

GENERAL

LOCATING THE CONTROLS

List of button locations and reference pages

Unit

HCD-GN90D/GN100D

This section is extracted from instruction manual.

ALPHABE TICAL ORDER

A – D

ALBUM qh AMP MENU ra CD SYNC qf Deck A wl Deck B w; DIRECTION qa DISC 1 ~ 3 3 Disc tray rg DISPLAY rd Display 5 DOLBY PL II ek DVD el

E – L

ECHO LEVEL wg EFFECT ON/OFF r; ENTER wa

EQ EDIT 8 EX-CHANGE/DISC SKIP 4 FM MODE q; GAME es GAME INPUT (jacks) wk GAME MIXING ej GROOVE ea ILLUMINATION e;

M – R

MIC (jack) wj MIC LEVEL wh MULTI JOG ws

P FILE MEMORY 7 PHONES (jack) wf PLAY MODE 9

Power illuminator 2 REC PAUSE/START qg REPEAT q;

S – Z

SLEEP rs SOUND FIELD rf TAPE A/B eg TUNER/BAND eh TUNER MEMORY qa TUNING MODE 9 VIDEO/SAT ed VOLUME wd

eh eg

SYMBOLS

?/1 (power) 1 Z OPEN/CLOSE 6 nN (play) qs

–. >+ (go backward/

forward) qd

–m M+ (rewind/fast forward)

X (pause) ql x (stop) qk

Z A (Eject A) ef Z B (Eject B) qj

wgwf

HCD-GN90D/GN100D

Remote control

This section is extracted from instruction manual.

ALPHABE TICAL ORDER

A – E

ALBUM + 7 ALBUM – qa ANGLE qk AUDIO qk BAND wg CLEAR wl CLOCK/TIMER SELECT e; CLOCK/TIMER SET e;

DISC SKIP wf DISPLAY wa DVD DISPLAY wh DVD MENU 7 DVD SETUP ws

DVD TOP MENU qa ENTER wj

F – Z

FM MODE 5 FUNCTION +/– q;

KARAOKE/MPX qf KEY CONTROL #/29 Numeric Buttons qd PLAY MODE 4

REPEAT 5 SLEEP qh SLOW / w; SOUND FIELD +/– wd SUBTITLE qk TUNER MEMORY 3 TUNING MODE 4 TUNING +/– wk TV CH +/– qg TV/VIDEO ea TV VOL +/– 2 TV &/1 qj VOLUME +/– 8

SYMBOLS

?/1 (power) 1 x (stop) 6

X (pause) 6 nN (play) 6

–. (go backward) wk >+ (go forward) wk m (rewind) w;

M (fast forward) w;

M/m/</, wj > 10 qs

O RETURN ql

wl wk

wj wh wg

+–+

–

+–+

–

+–

–

mM.>

XbB

+ –

–

ql w;

mM.>

XbB x

+–

–

+ –

+–

–

2qg

3 4 5

6 7

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

3-1. DISASSEMBLY FLOW

SET

3-2.CASE

(Page 8)

3-3.LOADING PANEL ASSY

(Page 8)

3-4.FRONT PANEL ASSY

(Page 9)

HCD-GN90D/GN100D

SECTION 3

DISASSEMBLY

3-5.DVD MECHANISM DECK

(CDM74D2-DVBU62)

(Page 9)

3-9.TUNER PACK

(Page 11)

3-10.BRACKET TOP, BRACKET SUB

(Page 12)

3-11.PRIMARY BOARD

(Page 12)

3-6.TAPE MECHANISM DECK,

GAME BOARD

(Page 10)

3-17.DRIVER BOARD,

SW BOARD

(Page 15)

3-12.DMB07 BOARD, VIDEO BOARD

(Page 13)

3-7.CD SW BOARD,

PANEL BOARD

(Page 10)

3-8.SWITCH BOARD

(Page 11)

3-18. RF BOARD,

OPTICAL PICK-UP

(DBU-3)

(Page 16)

3-19.SENSOR BOARD

(Page 16)

3-20.MOTOR (TB) BOARD

(Page 17)

3-21.MOTOR (LD) BOARD

(Page 17)

3-13.REAR PANEL

(Page 13)

3-14.POWER TRANSFORMER

(T601)

(Page 15)

POWER BOARD ASSY

3-14.MAIN BOARD

(Page 14)

3-15.SURROUND BOARD,

PA BOARD

(Page 14)

HCD-GN90D/GN100D

)

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

3-2. CASE

case

screw

(case 3 TP2) (M3 x 12)

two screws (case 3 TP2) (M3 x 8)

five screws

(+BVTT3 x 6)

two screws

(+BVTT3 x 6)

3-3. LOADING PANEL ASSY

DVD mechanismdeck (CDM74D2-DVBU62)

Turn the pulley to the arrow direction.

Pulley

Front side

loading panel assy

screw (case 3 TP2

(M3 x 12)

two screws

(case 3 TP2) (M3 x 8)

Pull out disc tray

3-4. FRONT PANEL ASSY

)

screw (BVTP3 x 10)

front panel assy

two wires

(flat type)

from CN802 on

GAME board

HCD-GN90D/GN100D

MAIN board

CN508

CN509

from deck A head

screw (BVTP3 x 10)

five screws (BVTP3 x 10)

3-5. DVD MECHANISM DECK (CDM74D2-DVBU62)

DVD mechanism deck

from deck B head

from CN801 on GAME board

two screws (BVTP3 x 10

screw (BVTP3 x 10)

wire (flat type) (29 core)

CN701

MAIN board

HCD-GN90D/GN100D

)

3-6. TAPE MECHANISM DECK, GAME BOARD

tape mechanism deck

five screws

(+BVTP2.6 x 8)

three screws

(+BVTP2.6 x 8)

3-7. CD SW BOARD, PANEL BOARD

CD SW board

claw

five screws

(+BVTP2.6 x 8)

CN907

GAME board

knob (MIC)

bracket (MIC

nineteen screws

(+BVTP2.6 x 8)

wire (flat type) (19 core)

from CN902

knob (VOL)

CN903

PANEL board

3-8. SWITCH BOARD

)

HCD-GN90D/GN100D

two screws

(+BVTP2.6 x 8

SWITCH board

3-9. TUNER PACK

tuner pack

wire (flat type)

(11 core)

two knobs (AMS)

two screws

(+BVTT3 x 6)

HCD-GN90D/GN100D

)

3-10. BRACKET TOP, BRACKET SUB

bracket, top

two screws

(BVTP3 x 10)

two screws

(BVTP3 x 6)

wire (flat type)

(21 core)

wire (flat type)

(7 core)

connector

(CN1200)

(CN516)

(CN517)

four screws

(BVTT3 x 6 (S)

3-11. PRIMARY BOARD

(CN1001)

(CN1002)

connector

(CN1000)

connector

bracket, sub

connector

(CN101)

PRIMARY board

two screws

(+BVTT3 x 6 (S))

connector

(CN201)

3-12. DMB07 BOARD, VIDEO BOARD

HCD-GN90D/GN100D

bracket, top

3-13. REAR PANEL

(CN501)

(CN105)

(CN1202)

(CN101)

wire (flat type) (29 core)

(DVD)

four screws

(BVTP3 x 10)

VIDEO board

(BVTP3 x 10)

wire (flat type) (17 core)

DMB07 board

wire (flat type) (7 core)

Heat sink

three screws

rear panel

with fan

MAIN board

CN503

Connector

screw

(+BVTT3 x 6)

eleven screws

(+BVTP3 x 10)

HCD-GN90D/GN100D

3-14. MAIN BOARD, POWER BOARD ASSY

two screws

(+BVTT3 x 6 (S))

connector

4p (CN703)

connector

6p (CN604)

two screws

(+BVTT3 x 6 (S))

screw

(+BVTT3 x 6 (S))

POWER board assy

screw

(+BVTP3 x 10)

3-15. SURROUND BOARD, PA BOARD

SURROUND board

MAIN board

two screws

(transistor)

two screws

(+BVTP3 x 10)

heat sink

PA board

two screws

(+BVTP3 x 10)

screw

(+BVTP3 x 10)

bracket

two screws

(transistor)

two screws

(+BVTP3 x 10)

3-16. POWER TRANSFORMER (T601)

connector

6p (CN604)

connector

4p (CN703)

six

screws

HCD-GN90D/GN100D

power transformer (T601)

3-17. DRIVER BOARD, SW BOARD

two

screws

(+BTTP (M2.6))

DRIVER

wire (flat type) 5p

(CN702)

board

connector

4p (CN703)

(+BTTP (M2.6))

screw

SW board

HCD-GN90D/GN100D

3-18. RF BOARD, OPTICAL PICK-UP (DBU-3)

Step

screw (M)

Insulator (RB)

Step

screw (M)

Insulator

Optical pick-up (DBU-3)

Step

screw (M)

Insulator (RB)

3-19. SENSOR BOARD

ray

Flat type wire

(CN002)

floating

(+PTPWH M2.6)

floating

(+PTPWH M2.6)

screw

(+BTTP (M2.6))

screw

RF board

crew

Tw o screws (+BTTP 2.6)

SENSOR board

connector

(

CN731)

Floating

Holder (DBU) assy

Flat type wire

screw (PTPWH M2.6)

(CN001)

(CN003)

elt (table)

floating

(+PTPWH M2.6)

screw

ulley (table)

ear (geneva)

3-20. MOTOR (TB) BOARD

stopper

able motor assy (M741)

HCD-GN90D/GN100D

3-21. MOTOR (LD) BOARD

Remove the two solderings of motor.

oading motor assy (M751)

MOTOR (TB) board

Remove the two solderings of motor.

two

screws

(+BTTP (M2.6))

two

screws

(+BTTP (M2.6))

MOTOR (LD) board

wire (flat type) 5 core (CN742)

elt (loading)

HCD-GN90D/GN100D

SECTION 4

TEST MODE

[GC TEST MODE]

• This mode is used to check the fluorescent indicator tube, LED, model, destination, software version, volume, key, jog, encoder and VACS level.

Procedure:

1. Press

2. All LEDs and segments in fluorescent indicator tube are lighted up.

3. When you want to enter the software version display mode,

4. Each time

5. When

button, [ENTER] button and [DISC2] button

simultaneously.

[DISC1] button. The model and destination are displayed.

press

[DISC1] button is pressed, the display changes from

MC version, GC version, CD version, ST version, TC version, TA version, TM version in this order, and returns to the MC version display.

[DISC3] button is pressed while the version numbers are

being displayed except model and destination, the date of the software creation appear. When the display returns to the software version display. When

[DISC3] button is pressed again,

[DISC1] button is pressed while the date of the software creation

is being displayed, the date of the software creation is displayed in the same order of software version display.

6. Press

7. In the key check mode, the fluorescent indicator tube displays

8. When

9. When

10. To release from this mode, press three buttons in the same

[DISC2] button, the key check mode is activated.

“K0 J0 V0 E0”. Each time a button is pressed, “K” value increases. However, once a button has been pressed, it is no longer taken into account. “J” value increases in the manner of 0,1, 2, 3 ... if knob is turned clockwise, or it decreases in the manner of 0, 9,

[MULTI JOG] knob is turned counter-clockwise.

8,7 ... if “V” value increases in the manner of 0, 1, 2, 3 ... if knob is turned clockwise, or it decreases in the manner of 0, 9, 8,7 ... if

[VOLUME] knob is turned counter-clockwise.

“E” value increases in the manner of 0, 1, 2, 3 ... if knob is turned clockwise, or it decreases in the manner of 0, 9,

8,7 ... if

knob is turned counter-clockwise.

[MULTI JOG]

[VOLUME]

[DISC3] button is pressed after all LEDs and segments

in fluorescent indicator tube light up, the fluorescent indicator tube displays “VACS A+B APCC”. A is VACS level which is trigger by signal level, B is VACS level which is trigger by temperature and CC is VACS level which is trigger by APVACS (Abuse Protection VACS).

[EX-CHANGE/DISC SKIP] button is pressed after all

LEDs and segments in fluorescent indicator tube light up, alternate segments in fluorescent indicator tube would light up. If you press half of alternate segments in fluorescent indicator tube would light up. Pressing would cause all segments lights up.

manner as step 1, or disconnect the power cord.

[EX-CHANGE/DISC SKIP] button again, another

[EX-CHANGE/DISC SKIP] button again

[MC TEST MODE]

• This mode is used to check operations of the respective sections of Amplifier, Tuner, and Tape.

Check of Amplifier

1. Press [EQ EDIT] button repeatedly until a message “GEQ MAX”

appears on the fluorescent indicator tube. GEQ increases to its maximum.

2. Press [EQ EDIT] button repeatedly until a message “GEQ MIN”

appears on the fluorescent indicator tube. GEQ increases to its minimum.

3. Press [EQ EDIT] button repeatedly until a message “GEQ FLAT”

appears on the fluorescent indicator tube. GEQ set to flat.

4. When the [VOLUME] knob is turned clockwise even slightly,

the sound volume increases to its maximum and a message “VOLUME MAX” appears on the fluorescent indicator tube.

5. When the [VOLUME] knob is turned counter-clockwise even

slightly, the sound volume decreases to its minimum and a message “VOLUME MIN” appears on the fluorescent indicator tube.

Tape function

1. When a tape is inserted in Deck B and recording is started, the

function is changed to VIDEO automatically. When [CD SYNC] button is pressed during recording in function, ALC (Automatic Logic Control) is turned on.

2. During recording, turn stop the recording and the function is changed to TAPE B and rewind the tape in Deck B until the recording start position and playback of the tape B is started. If the [REC PAUSE/ START] button is pressed for a pause and pressed again to resume recording during recording time, when the tape is rewind, the tape will be rewind until the position where the pause is applied.

AMS Test Mode

1. Select the function “TAPE A” or “TAPE B”.

2. Select Loop or Relay direction mode by pressing the [DIRECTION] button. Insert a test tape AMS-110A or AMS-120 to selected tape deck.

3. Press the [AMP MENU] button to enter the AMS test mode.

4. After the test tape is rewind to the beginning of the tape, the AMS+ is checked, and the mechanism is shut off after detecting the AMS signal twice.

5. Then the AMS- is checked and the mechanism is shut off after detecting the AMS signal twice.

6. When the check is complete, a message of either OK or NG appears on the fluorescent indicator tube.

To release from MC Test mode

1. To release from this mode, press

2. The cold reset is enforced at the same time.

m M

knob counterclockwise will

button.

?/1

[COLD RESET]

• The cold reset clears all data including preset data stored in the

RAM to initial conditions.

Procedure:

1. Press simultaneously.

2. The fluorescent indicator tube becomes blank for a while, and the set is reset.

button, [ENTER] button, and

?/1

button

Procedure:

•To enter MC Test Mode

1. Press

2. The DVD ring indicators and TAPE A and B indicators flash on

button, [ENTER] button and [DISC3] button

simultaneously.

the fluorescent indicator tube. The function is changed to VIDEO.

HCD-GN90D/GN100D

[VACS ON/OFF]

• This mode is used to switch ON and OFF the VACS (Variable Attenuation Control System).

Procedure:

1. Press

button to turn the set ON.

?/1

2. Press [ENTER] button and [GAME MIXING] button simultaneously.

The message “VACS OFF” or “VACS ON” appears on the fluorescent indicator tube.

[TUNER STEP CHANGE]

• The step interval of AM channels can be toggled between 9 kHz and 10 kHz.

Procedure:

1. Press

button to turn the set ON.

?/1

2. Press [TUNER/BAND] button to select the “AM”.

3. Press

4. Press [ENTER] button and

button to turn the set OFF.

?/1

button simultaneously. The set

?/1

will power ON automatically. The message “AM 9k STEP” or “AM 10k STEP” appears on the fluorescent indicator tube and thus the channel step is changed.

[REPEAT 5 LIMIT OFF MODE]

• The number of repeat for disc playback is 5 times when the repeat mode is “REPEAT ALL”. This mode enables the disc to repeat playback for limitless times.

Procedure:

1. Press

2. Select DVD function.

3. Press

simultaneously to enter the repeat 5 limit off mode and the fluorescent indicator tube displays “LIMIT OFF”.

•To release from this mode, operate the cold reset. (Refer to the “MC COLD RESET”)

button to turn the set ON.

?/1

button, [EQ EDIT] button and [DVD] button

[DVD POWER MANAGE]

• This mode let you switch on or off power supply to the ZIVA during TUNER function.

• When DVD POWER is set to OFF, the power supply to the ZIVA is cut off during TUNER function. It will increase the time taken to access disc when function change from TUNER to DVD but it will improve tuner reception performance.

• When DVD POWER is set to ON, the power supply to the ZIVA is not cut off during TUNER function. It will reduce the time taken to access disc when function change from TUNER to DVD but it will decrease tuner reception performance.

Procedure:

1. Press

button to turn the set ON.

?/1

2. Select DVD function.

3. Press

4. Press

button to turn the set OFF.

?/1

button and

?/1

button simultaneously. The set will

power on automatically.

5. The message “DVD POWER ON” or “DVD POWER OFF”

will be displayed on the fluorescent indicator tube.

[DVD TRAY LOCK MODE]

• This mode let you lock the disc tray. When this mode is activated, the disc tray will not open when [OPEN/CLOSE] button or [EX-CHANGE/DISC SKIP] button is pressed. The message “LOCKED” will be displayed in on the fluorescent indicator tube.

Procedure:

1. Press

2. Select DVD function.

3. Press

and hold down until “LOCKED” or “UNLOCKED” displayed on the fluorescent indicator tube (around 5 seconds).

button to turn the set ON.

?/1

button and [OPEN/CLOSE] button simultaneously

[DVD SHIP MODE (WITH MEMORY CLEAR)]

• This mode moves the optical pick-up to the position durable to vibration and clears all data including preset data stored in the RAM to initial conditions. Use this mode when returning the set to the customer after repair.

Procedure:

1. Press

button to turn the set ON.

?/1

2. Select DVD function.

3. Press

button, [ENTER] button and [GAME] button

simultaneously. The set will power off automatically.

4. After the “STANDBY” blinking display finish, a message

“LOCK” is displayed on the fluorescent indicator tube and the DVD ship mode is set.

[DVD SHIP MODE (WITHOUT MEMORY CLEAR)]

• This mode moves the optical pick-up to the position durable to vibration.

Procedure:

1. Press

2. Select DVD function.

3. Press [DVD] button and [POWER] button simultaneously. The

set will power off automatically.

4. After the “STANDBY” blinking display finish, a message

“LOCK” is displayed on the fluorescent indicator tube and the DVD ship mode is set.

button to turn the set ON.

?/1

[VIDEO/SAT SWITCHING]

• This mode let you switch from VIDEO to SAT and vice-versa.

Procedure:

1. Press

button to turn the set ON.

?/1

2. Select VIDEO function.

3. Press [VIDEO/SAT] button and

button simultaneously. The

?/1

function will change to SAT. Press the same buttons again to change from SAT to VIDEO.

[DVD COLOR SYSTEM SWITCHING]

• This mode let you change the color system of the video output from PAL to NTSC or vice-versa.

Procedure:

1. Press

2. Select DVD function.

3. Press

4. Press [PAUSE] button and

will power on automatically.

5. The message “COLOR PAL” or “COLOR NTSC” will be

displayed on the fluorescent indicator tube.

button to turn the set ON.

?/1

button to turn the set OFF.

?/1

button simultaneously. The set

?/1

HCD-GN90D/GN100D

[DVD PROGRESSIVE]

• This mode let you change the video signal format from PROGRESSIVE format to INTERLACE format if you accidentally change the COMPONENT OUT settings in DVD SETUP MENU to “PROGRESSIVE” and your TV cannot accept Progressive signal.

Procedure:

1. During DVD function, press

button and [DOLBY PL II]

button simultaneously.

[DVD SERVICE MODE]

• This mode let you make diagnosis and adjustment easily by using the remote commander and TV. The instructions, diagnostic results, etc. are given on the on-screen display (OSD).

Procedure to enter to DVD Service Mode:

1. Press

2. Select DVD function.

3. Press down

simultaneously and then turn the [VOLUME] knob clockwise.

4. The message “SERVICE IN” will be displayed on the

fluorescent indicator tube and the Test Mode Menu is displayed on the on-screen display on the TV. The model name and revision number is displayed at the bottom of the on-screen display.

button to turn the set ON.

?/1

button and [OPEN/CLOSE] button

Test Mode Menu

0. Syscon Diagnosis

1. Drive Auto Adjustment

2. Drive Manual Operation

3. Mecha Aging

4. Emergency History

5. Mecha Error History

6. Version Information

7. Video Level Adjustment Exit: POWER Key

Model :MHC-GNxxx xx Revision :x.xx

0-0 Quit

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

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.

### Syscon Diagnosis ###

Diag All Check

No.2 Version

2-3. ROM Check Sum

Check Sum = xxxx

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 item, or press the

button to repeat the same operation

button to go to the

>NEXT

again. To quit the diagnosis and return to Check Menu screen, press the [RETURN] button on the remote commander to display Check Menu.

• Error occurred If an error occurred, the diagnosis is suspended and the error is displayed. Press the [RETURN] button to quit the diagnosis, or press

the occurred, or press the

button to repeat the same check where an error

button to continue the check from

>NEXT

the item next to faulty item.

5. To execute each function, press its number by using numeric button on the remote commander.

6. To release from this mode, press

button to turn the set

?/1

OFF.

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] button 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. GPIO

5. SD Bus

6. Video

• General Description of Checking Method Selecting 2 and subsequent items call the submenu screen of each item. And selecting 2 and subsequent items execute 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

0-2. Version

0-2-2. Revision The revision number of ROM (IC206) that the program for the DVD system processor (IC207) is stored.

HCD-GN90D/GN100D

0-2-3. ROM Check Sum Check sum is calculated. (4 digits hexadecimal number)

0-2-4. Model Type Model name is displayed. (MHG-GN XXX)

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 (IC207) 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.

1. Drive Auto Adjustment

On the Test Mode Menu screen, press the 1 button on the remote commander, the Adjustment Menu will be displayed.

## Drive Auto Adjustment ##

Adjustment Menu

0. ALL

1. DVD-SL

2. CD

3. DVD-DL

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] button on the remote commander, and the servo set data in EEPROM will be initialized. Then DVD-SL disc, CD disc and DVD-DL disc are adjusted in this order. Each time one disc was adjusted, it is ejected. Replace it with the specified disc following the message. You can finish the adjustment by pressing the [RETURN] button on the remote commander.

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 button 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

24. 32 track jump forward

25. 32 track jump reverse

26. 500 track jump forward

27. 500 track jump reverse

28. All servo stop

29. EEP copy loop

1-2. CD

Press the 2 button 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 EEPROM.

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

17. Check CLV on

18. Auto loop filter offset adjust

HCD-GN90D/GN100D

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 button 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 t L1)

46. Layer jump (L1 t 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 button 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

button to turn the power off.

?/1

Basic operation:

(controllable from front panel or remote commander)

+/1 : Power OFF (release the Test Mode)

x : Servo stop

Z : 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/

2-1. Disc Type

1. Disc Type Auto Check

2. Set Disc Type DVD

3. Set Disc Type CD

4. Set Disc Type Hybrid

: Increase/Decrease in manually

adjusted value

Disc Type

Disc Type Select

Exit: RETURN

HCD-GN90D/GN100D

2-1-1. Disc Type Auto Check

1) Press the 1 button on the remote commander to display the Disc Type Auto Check screen.

2) Insert a disc and press the [ENTER] button 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

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.

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

of each layer when lens down.

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) [8] : DVD-RW disc (8 cm)

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)

[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

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. [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.

2-3. Track/Layer Jump

Track/Layer Jump

1. 1Tj FWD

2. 1Tj REV

3.500Tj Fine FWD

4.500Tj Fine REV

5.10kTj Dirc FWD

6.10kTj Dirc REV

7.20kTj Dirc FWD

8.20kTj Dirc REV

0. All Servo Off

Exit: RETURN

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)

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

HCD-GN90D/GN100D

[1] 1Tj FWD : 1 track jumps forward. [2] 1Tj REV : 1 track jump reverse. [3] 500Tj FWD : 500 tracks 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

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

[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 the

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

button (UP) or o button (DW).

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 the O button or o button. 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.

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

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

2-7. Disc Check Memory

Disc Check Memory

1. SL Disc check

2. CD Disc check

3. DL Disc check

Exit: RETURN

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

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.

HCD-GN90D/GN100D

2-8. Error Rate Display

Error Rate Display

UC CR Address

PI1 Err Now xx xxxx xxxxxxxx

Max xx xxxx xxxxxxxx Avg xx xxxx

PI2 Err Now xx xxxx xxxxxxxx

Max xx xxxx xxxxxxxx Avg xx xxxx

PO Err Now xx xxxx xxxxxxxx

Max xx xxxx xxxxxxxx Avg xx xxxx

START: ENTER STOP: RETURN

On this screen, measure and display the error rate.

UC: Incorrect value CR: Correct value Add: Address

2-9. SACD Water Mark Check (Not used)

SACD Water Mark Check

PSP AMP PSN

During aging, the disc number, operating status and repeat cycle are displayed. Aging can be aborted at any time by pressing the [RETURN] button. After the operation is stopped, press the [RETURN] button 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 the O button

button. Also, specific information can be displayed by

directly entering that number with ten keys.

### 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.

Adjust error Failed

Start: ENTER Stop: RETURN

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

3. Mecha Aging

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

Aging Test MENU

Pls use over 40min. CD

1. Open/Close Test

1) On the Aging Test MENU screen, press the [1] button on the

remote commander to display the Open/Close Test screen.

2) Insert discs and press the [ENTER] button on the remote

commander.

3) Is starts the aging.

Operation Menu

Exit: RETURN

• Clearing History Information

Clearing laser hours:

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

Clearing emergency history:

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

Initializing set up data:

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

• 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 (IC204). 14 : Communication to servo DSP (IC509) failed, or servo DSP

(IC509) is faulty.

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

decoder (IC701) is faulty.

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

decoder (IC801) is faulty. (Not used)

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.

HCD-GN90D/GN100D

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 Test 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

button or o button. Also, specific information can be displayed

by directly entering that number with ten keys.

### Mecha Error History ###

1. xx xx xx xx xx xx xx xx

2. xx xx xx xx xx xx xx xx

3. xx xx xx xx xx xx xx xx

4. xx xx xx xx xx xx xx xx

5. xx xx xx xx xx xx xx xx

6. xx xx xx xx xx xx xx xx

7. xx xx xx xx xx xx xx xx

8. xx xx xx xx xx xx xx xx

Scroll:UP/DOWN

(1.Latest Err.) Exit: RETURN

6. Version Information

On the Test Mode Menu screen, selecting [6] displays the ROM version and region code. The parenthesized hexadecimal number in version field is checksum value of ROM.

## Version Information ##

IF con. Ver.x. xx

SYScon. Ver.x. xx (xxxx)

Model MHC-GNxxx Region 0x Config xxxxxxxx

Front End Ver.x.xx

Exit: RETURN

IF con. : The version of system controller (IC501). SYScon. : The version of DVD system processor (IC207). Front End : The version of mechanism controller (IC901).

7. Video Level Adjustment

On the Test Mode Menu screen, selecting [7] displays color bars for video level adjustment. During display of color bars, OSD disappears but the menu screen will be restored if pressing the [RETURN] button.

aa : Initialization is completed or not.

FF : Complete. other number : Not complete.

bb : Operating status of mechanism deck at an error occurred.

(lod sq jcp) 00 : Initializing. 10 to 15 : Open operating. 16 to 19 : Kicking cause open failed. 1A to 1F : Open operating. 20 to 27 : Complete the open operation. 28 : No disc and complete the open operation. 29 to 2F : Complete the open operation. 30 to 3F : Close requesting. 40 to 4F : Open requesting. 50 to 5F : Close operating. 60 to 6F : Complete the chucking operation. 80 to 8F : Complete the release operation.

(BU is home position) 90 to 9F : BU down operating. A0 to AF : Opening/closing the shutter. Or stationary state

in open/close the shutter is enablement. B0 to BF : BU up requesting. C0 to CF : BU down requesting. D0 to DF : BU upping. E0 to EF : No disc checking in disc loading.

cc : Operating status of mechanism deck at an error occurred.

(lod oq jcp) 00: Complete the operation. 10 to 1F : Open operating. 20 to 2F : Close operating. 30 to 3F : Release operating. 60 to 6F : Chucking operating. 70 to 7F : Kicking operating. 80 to 8F : Returning the BU to home position.

(after kicking)

HCD-GN90D/GN100D

SECTION 5

MECHANICAL ADJUSTMENTS

Precaution

1. Clean the following parts with a denatured alcohol-moistened swab:

record/playback heads pinch rollers erase head rubber belts capstan idlers

2. Demagnetize the record/playback head with a head demagnetizer.

3. Do not use a magnetized screwdriver for the adjustments.

4. After the adjustments, apply suitable locking compound to the parts adjusted.

5. The adjustments should be performed with the rated power supply voltage unless otherwise noted.

Torque Measurement

Mode Torque meter Meter reading

3.06 N • m to 6.96 N • m

FWD CQ-102C 31 to 71 g • cm

(0.43 – 0.98 oz • inch)

FWD

back tension

REV CQ-102RC 31 to 71 g • cm

REV

back tension

FF/REW CQ-201B 71 to 143 g • cm

FWD tension CQ-403A 100 g or more

REV tension CQ-403R 100 g or more

CQ-102C 2 to 6 g • cm

CQ-102RC 2 to 6 g • cm

0.19 N • m to 0.58 N • m

(0.02 – 0.08 oz • inch)

3.06 N • m to 6.96 N • m

(0.43 – 0.98 oz • inch)

0.19 N • m to 0.58 N • m

(0.02 – 0.08 oz • inch)

6.96 N • m to 14.02 N • m

(0.98 – 1.99 oz • inch)

9.80 N • m

(3.53 oz or more)

9.80 N • m

(3.53 oz or more)

SECTION 6

ELECTRICAL ADJUSTMENTS

DECK SECTION

1. Demagnetize the record/playback head with a head demagnetizer.

2. Do not use a magnetized screwdriver for the adjustments.

3. After the adjustments, apply suitable locking compound to the parts adjust.

4. The adjustments should be performed with the rated power supply voltage unless otherwise noted.

5. The adjustments should be performed in the order given in this service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.)

6. The adjustments should be performed for both L-CH and 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 ADJUST-MENT

DECK A DECK B

Note: Perform this adjustments for both decks

Procedure:

1. Mode: Playback

test tape P-4-A100 (10 kHz, –10 dB)

0 dB=0.775 V

MAIN board CN510 Pin

1 3

set

MAIN board CN510

(L-CH) (R-CH)

(GND)

level meter

+ –

HCD-GN90D/GN100D

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 1dB

L-CH peak

R-CH peak

within 1dB

Screw position

L-CH peak

Screw position

R-CH peak

3. Mode: Playback

test tape P-4-A100 (10 kHz, –10 dB)

L-CH

MAIN board CN510 set

R-CH

waveform of oscilloscope

oscilloscop

VIDEO SECTION

RE-ADJUSTMENT OF THE SERVO CIRUIT

The re-adjustment of the servo circuit is necessary when the part which relates to the servo circuit is replaced. Referring to “1. DRIVE AUTO ADJUSTMENT” (see page 21). Choose ALL and do the re-adjustment of each item of DVD-SL, CD and DVD-DL.

THE PART THAT THE RE-ADJUSTMENT OF THE SERVO CIRCUIT IS NECESSARY.

1. Optical pick-up

2. RF AMP (IC001)

3. DSP IC (IC509)

4. Motor driver IC (IC501)

5. EEPROM (IC204)

Note :

1. DBM07 board is basically designed to operate without adjustment. Therefore, check each item in order given.

2. Use DVD reference disc unless othermise indicated. [DVD reference disc]

• LUV-P01 (4-999-032-01) (CD)

•TDV-540C (J-2501-235-A) (DVD-DL)

• TDV-520CSO (J-2501-236-A) (DVD-SL)

3. Use an oscilloscope with more than 10MΩ impedance.

4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks.

in phase 45°90°135°180

good

wrong

4. After the adjustments, apply suitable locking compound to the pats adjusted.

Adjustment Location: Playback Head (Deck A).

Record/Playback/Erase Head (Deck B).

Video Level Check (DBM07 BOARD)

Purpose

This adjustment is made to satisfy the NTSC standard, and if not adjusted correctly, the brightness will be too large or small.

Oscilloscop

Ω

set

J1201 VIDEO OUTPUT

Procedure:

1. Connect oscilloscope to VIDEO output.

2. Load a DVD reference disc playback.

3. Check the video signal level is 1.00±0.05Vp-p.

1.00 ± 0.05 Vp-

(WHITE 100%)

reverse

forward

RFMON Level Check

Perform a RFMON level check before exchanging optical pick-up.

Connection:

oscilloscope

HCD-GN90D/GN100D

–RF board (side B) –

JL005

(RFMON)

RFMON signal waveform

C035

C012

JL005(RFMON)

C051

C036

C033

R031

C034

+ –

IC001

VOLT/DIV: 200 mV TIME/DIV: 500 ns

RFMON level

R013

• Standard value

DVD

Test Disc

TDV-520CSO

(J-2501-236-A)

LUV-P01

(4-999-032-01)

RFMON level

Standard Value

1.09±0.2Vp-p

1.05±0.2Vp-p

HCD-GN90D/GN100D

SECTION 7

DIAGRAMS

For schematic diagrams. Note:

• All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics and tantalums.

• All resistors are in Ω and 1/ specified.

• f : internal component.

• 2 : nonflammable resistor.

• 5 : fusible resistor.

Note: The components identified by mark 0 or dotted line

with mark ! are critical for safety. Replace only with part number specified.

• C : panel designation.

• A : B+ Line.

• B : B– Line.

• H : adjustment for repair.

•Voltages and waveforms are dc with respect to ground under no-signal conditions.

RF, DMB07, VIDEO boards section

no mark: DVD PLAY

Other board section

no mark: TUNER (FM/AM) ( ): DVD PLAY < >: TAPE REC [ ]: TAPE PLAY

* : Impossible to measure

•Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances.

•Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F : TUNER (FM/AM) E : TAPE PLAY (DECK A) d : TAPE PLAY (DECK B) G : RECORD J : DVD PLAY N : MIC INPUT

W or less unless otherwise

Note on Printed Wiring Boards:

• X : parts extracted from the component side.

• : Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

Caution: Parts face side: Parts on the parts face side seen from (Side A) the parts face are indicated. Pattern face side: Parts on the pattern face side seen from (Side B) the pattern face are indicated.

• Indication of transistor.

• Abbreviation E3 : 240V AC Area in E model EA : Saudi Arabia mdoel E15 : Iran model SP : Shingapore model MY : Malaysia model AUS : Australian mdoel MX : MExican model PH : Philippine model

These are omitted.

• Abbreviation E3 : 240V AC Area in E model EA : Saudi Arabia mdoel E15 : Iran model SP : Shingapore model MY : Malaysia model AUS : Australian mdoel MX : MExican model PH : Philippine model

+ 84 hidden pages

Sony HCD-GN90D, HCD-GN100D Service Manual

SPECIFICATIONS

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

3-1. DISASSEMBLY FLOW

DISASSEMBLY

3-2. CASE

3-3. LOADING PANEL ASSY

3-4. FRONT PANEL ASSY

3-5. DVD MECHANISM DECK (CDM74D2-DVBU62)

3-6. TAPE MECHANISM DECK, GAME BOARD

3-7. CD SW BOARD, PANEL BOARD

3-8. SWITCH BOARD

3-9. TUNER PACK

3-10. BRACKET TOP, BRACKET SUB

3-11. PRIMARY BOARD

3-12. DMB07 BOARD, VIDEO BOARD

3-13. REAR PANEL

3-14. MAIN BOARD, POWER BOARD ASSY

3-15. SURROUND BOARD, PA BOARD

3-16. POWER TRANSFORMER (T601)

3-17. DRIVER BOARD, SW BOARD

3-18. RF BOARD, OPTICAL PICK-UP (DBU-3)

3-19. SENSOR BOARD

3-20. MOTOR (TB) BOARD

3-21. MOTOR (LD) BOARD

TEST MODE

MECHANICAL ADJUSTMENTS

ELECTRICAL ADJUSTMENTS

DIAGRAMS