Jvc UX-QX3-WA, UX-QX3-AA Service Manual

SERVICE MANUAL

MICRO COMPONENT SYSTEM

MB57420069

UX-QX3WA,UX-QX3AA

SP-UXQX1W SP-UXQX1A

Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

CA-UXQX3W SP-UXQX1W CA-UXQX3A SP-UXQX1A

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

No.MB574

2006/9

SPECIFICATION

CD receiver section (CA-UXQX3W/CA-UXQX3A)

Amplifier Output power 20 W × 2ch (THD 10%/4 Ω)

Input terminal LINE IN × 1 LEVEL1 : 500 mV/47 kΩ

LEVEL2 : 250 mV/47 kΩ LEVEL3 : 125 mV/47 kΩ

Output terminals Speaker × 2 20 W/4 Ω

Impedance : 4 Ω - 16 Ω

Headphones (× 1) 25 mW/32 Ω

Impedance : 16 Ω - 1 kΩ

LINE OUT × 1 1 V/47 kΩ

Tuner Tuner Frequency FM 87.50 MHz - 108.00 MHz

AM 531 kHz - 1 710 kHz (9 kHz spacing)

530 kHz - 1 710 kHz (10 kHz spacing)

General Power requirement AC 240 V , 50 Hz

Power consumption 55 W (at operation)

8 W (Touch illumination ON/QP Link ON)

1.1 W (Touch illumination OFF/QP Link OFF)

Dimensions 165 mm (W) × 204 mm (H) × 339.5 mm (D)

Mass (approx.) 4.1 kg

CD player Playable discs Audio CDs and MP3

Speaker section (SP-UXQX1W/SP-UXQX1A)

System 2-way bass reflex type

Speakers Woofer 11 cm cone speaker × 1

Tweeter 4 cm cone speaker × 1

Power handling capacity 20 W

Impedance 4 Ω

Frequency range 56 Hz - 40 kHz

Sound pressure level 84 dB/W·m

Dimensions 135 mm (W) × 200.5 mm (H) × 215 mm (D)

Mass (approx.) 1.9 kg each

Micro component system (UX-QX3W/UX-QX3A)

Dimensions 435 mm (W) × 204 mm (H) × 339.5 mm (D)

Mass (approx.) 7.9 kg

Design and specifications are subject to change without notice.

1-2 (No.MB574)

SECTION 1

PRECAUTION

1.1 Safety Precautions

(1) This design of this product contains special hardware and

many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.

(2) Alterations of the design or circuitry of the product should

not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.

(3) Many electrical and mechanical parts in the products have

special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards.

(4) The leads in the products are routed and dressed with ties,

clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassembling.

(5) Leakage shock hazard testing

After reassembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check.

• Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).

• Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 in the following manner. Connect a 1,500 paralleled by a 0.15 exposed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC

Ω per volt or more sensitivity

Ω 10W resistor

µF AC-type capacitor between an

voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).

AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity)

0.15 F AC TYPE

Place this probe on

1500 10W

Good earth ground

1.2 Warning

(1) This equipment has been designed and manufactured to

meet international safety standards.

(2) It is the legal responsibility of the repairer to ensure that

these safety standards are maintained.

(3) Repairs must be made in accordance with the relevant

safety standards.

(4) It is essential that safety critical components are replaced

by approved parts.

(5) If mains voltage selector is provided, check setting for local

voltage.

1.3 Caution

Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.

1.4 Critical parts for safety

In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (This regulation dose not Except the J and C version)

each exposed metal part.

(No.MB574)1-3

1.5 Preventing static electricity

Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.

1.5.1 Grounding to prevent damage by static electricity

Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as laser products. Be careful to use proper grounding in the area where repairs are being performed.

(1) Ground the workbench

Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it.

(2) Ground yourself

Use an anti-static wrist strap to release any static electricity built up in your body.

(caption) Anti-static wrist strap

Conductive material (conductive sheet) or iron palate

(3) Handling the optical pickup

• In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.)

• Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily destroy the laser diode.

1.6 Handling the traverse unit (optical pickup)

(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. (2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the

replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a

time when attaching it to the connector. (3) Handle the flexible cable carefully as it may break when subjected to strong force. (4) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

1.7 Attention when traverse unit is decomposed

*Please refer to "Disassembly method" in the text for the pickup unit.

• Apply solder to the short land sections before the card wire is disconnected from the connecto on the servo board. (If the card wire is disconnected without applying solder, the pickup may be destroyed by static electricity.)

• In the assembly, be sure to remove solder from the short land sections after connecting the card wire.

1-4 (No.MB574)

Short land section

Pickup Connector Card wire

1.8 Important for laser products

1.CLASS 1 LASER PRODUCT

2.CAUTION :

(For U.S.A.) Visible and/or invisible class II laser radiation when open. Do not stare into beam. (Others) Visible and/or invisible class 1M laser radiation when open. Do not view directly with optical instruments.

3.CAUTION : Visible and/or invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam.

4.CAUTION : This laser product uses visible and/or invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety interlocks have failed or are defeated. It is dangerous to defeat the safety switches.

5.CAUTION : If safety switches malfunction, the laser is able to function.

6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified here in may result in hazardous radiation exposure.

Please use enough caution not to

see the beam directly or touch it

in case of an adjustment or operation

check.

REPRODUCTION AND POSITION OF LABELS and PRINT

WARNING LABEL and PRINT

(No.MB574)1-5

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

1-6 (No.MB574)

SECTION 3

DISASSEMBLY

3.1 Main body

3.1.1 Removing the rear cover (See Fig. 1, 2)

(1) Remove the six screws A attaching the rear cover. (See

Fig. 1)

(2) Remove the three screws B attaching the rear cover from

bottom side of main body. (See Fig. 2)

Rear cove

Fig.1

Fig.2

(No.MB574)1-7

3.1.2 Removing the side panel (See Fig. 3, 4)

(1) Remove the two screws C attaching the both side panels.

(See Fig. 3)

(2) Slide to backward and lift up then remove the both side

panels. (See Fig. 4)

Side panel

hook

Fig.3

Side panel

Fig.4

1-8 (No.MB574)

3.1.3 Removing the top cover

(See Fig. 5 to 8)

(1) Remove the one screw D attaching the tuner bracket. (See

Fig. 5)

(2) Disconnect the card wire from tuner pack connected the

connector CN709

(3) Disconnect the card wire from touch illumination board

connected the connector CN711 Fig. 6)

(4) Remove the two screws E attaching the top cover. (See

Fig.6, 7)

(5) Disengage the hook a and b form front panel assembly.

(See Fig. 6, 7)

(6) Lift up the top panel and then, disconnect the connector

wire from fan connected to the connector CN108 power amplifier board. (See Fig. 8)

of the micon board. (See Fig. 6)

of the micon board, (See

of the

hook

Top cover

Fig.5

hook

Fig.7

CN108

Micon board

CN709

Fig.6

hook

CN711

Power amplifier board

Fig.8

(No.MB574)1-9

3.1.4 Removing the front panel assembly (See Fig. 9, 3, 6, 7)

(1) Disconnect the card wires from front panel assembly con-

nected to the connector CN702 and CN710 of the micon board. (See Fig. 9)

(2) Disengage the hook c, d and e from the bottom chassis.

(See Fig. 3, 6 and 7)

3.1.5 Removing the heat sink (See Fig. 10)

(1) Remove the two screws F attaching the heat sink.

CN710 CN702

Fig.9

1-10 (No.MB574)

Fig.10

3.1.6 Removing the power amplifier board assembly

(See Fig. 11, 12)

(1) Remove the two screws G attaching the power amplifier

board assembly. (See Fig. 11)

(2) Disconnect the board to board connectors CN101

ed to secondary board assembly, CN102 nected to micon board assembly. (See Fig. 11)

(3) Disconnect the connector wire from head phone board as-

sembly connected to connector CN109 board assembly and disconnect the card wire from CD board connected to connector CN106 er board. (See Fig. 12)

and CN103 con-

of the amplifier

of the power amplifi-

connect-

CN103 CN102 CN101

CN109

Fig.11

Power amplifier board

Fig.12

Power amplifier board

CN106

(No.MB574)1-11

3.1.7 Removing the secondary board assembly (See Fig. 13)

(1) Disconnect the connector wire from primary board assem-

bly connected to connector CN202 of the secondary board.

(2) Remove the two screws H attaching the secondary board

assembly.

3.1.8 Removing the micon board assembly (See Fig. 14)

(1) Disconnect the card wire from the CD servo board connect-

ed to connector CN705

(2) Disconnect the connector wire from primary board assem-

bly connected to connector CN713 sembly.

(3) Remove the two screws J attaching the micon board as-

sembly.

of the micon board.

of the micon board as-

CN202

Secondary board

Fig.13

CN705

CN713

Micon board

Fig.14

1-12 (No.MB574)

3.1.9 Removing the primary board assembly with power transformer

(See Fig. 15)

(1) Remove the three screws K attaching the primary board

assembly with power transformer.

(2) Slide to direction of the arrow and then take out it.

Fig.15

(No.MB574)1-13

3.1.10 Removing the CD mechanism assembly (See Fig.16, 17)

(1) Remove the four screws L attaching the CD mecha brack-

et. (See Fig. 16)

(2) Disengage the card wire from the CD board assembly en-

gaged to bracket board. (See Fig. 16)

(3) Remove the one screw M attaching the CD mechanism as-

sembly. (See Fig.17)

CD mechanism assembly

Fig.16

1-14 (No.MB574)

Fig.17

3.1.11 Removing the Headphone board assembly

(See Fig. 18)

(1) Remove the two screws N attaching the headphone jack

board assembly.

Head phone board

Fig.18

(No.MB574)1-15

3.1.12 Removing the LCD board assembly (See Fig. 19)

(1) Remove the three screws P attaching the LCD board as-

sembly.

3.1.13 Removing the key function board assembly (See Fig. 19, 20)

(1) Remove the volume knob from front panel assembly. (2) Remove the one screw Q attaching the key function board

assembly from front side. (See Fig. 20)

(3) Remove the five screws R attaching the key function board

assembly. (See Fig. 19)

LCD board

Key function board

Fig.19

1-16 (No.MB574)

Fig.20

3.2 CD mechanism assembly

• Remove the CD mechanism assembly from main body.

(Refer to "Disassembly method")

3.2.1 Removing the CD cover

(See fig.1 and 2)

(1) Remove the two screws A attaching the CD cover from top

side of CD mechanism assembly. (See fig.1)

(2) Remove the card wire from connector CN4

sembly. (See fig.1)

(3) Take out the CD cover.

Caution:

The spring which presses down a card wire is attached to CD cover. Please do not lose a spring. (See fig.2)

on the LED as-

CN4

CD cover

Fig.1

Spring

Fig.2

LED assembly

(No.MB574)1-17

3.2.2 Removing the tray assembly (See fig.3 and 4)

• Remove the CD cover.

(1) From the right-hand side of CD mechanism assembly, a

slide cam is pushed and a tray assembly is pulled out in the direction of an arrow. (See fig.3)

(2) Remove the two screws B attaching the tray assembly

from top side of CD mechanism. (See fig.4)

(3) Remove the bushing of tray assembly from hook a of CD

mechanism assembly, and then take out the tray assembly. (See fig.4)

Tray assembly CD mechanism assembly

Slide cam

Fig.3

Hook a Hook a

Tray assembly

Fig.4

1-18 (No.MB574)

3.2.3 Removing the LED assembly

(See fig.5)

• Remove the CD cover and tray assembly.

(1) Remove the double face tape attaching the LED assembly

from top side of tray assembly, and then take out the LED assembly.

3.2.4 Removing the traverse mechanism assembly

(See fig.6)

• Remove the CD cover.

(1) Remove the four screws C attaching the traverse mecha-

nism assembly from bottom side of CD mechanism assembly.

(2) Remove the card wire from connector CN602

board, and then take out the traverse mechanism assembly and CD servo board together.

Reference:

When attach the traverse mechanism assembly, the wire should through part b.

on CD servo

Tray assembly LED assemlbyDouble face tape

Fig.5

CD mechanism assembly

Slot b

CD servo board

Traverse mechanism assembly

Fig.6

CN602

(No.MB574)1-19

3.2.5 Removing the CD servo board (See fig.7 and 8)

• Remove the CD cover and traverse mechanism assembly.

(1) Remove the two screws D attaching the CD servo board

from bottom side of traverse mechanism assembly. (See fig.7)

(2) Remove the solder from soldered section c of CD servo

board. (See fig.7)

(3) Remove the yellow wire and white wire from soldered sec-

tion d of CD servo board. (See fig.7)

(4) CD servo board is removed upward, hook e is removed in

the direction 1 of an arrow, and CD servo board is turned

over. (See fig.7) (5) Solder the short land section f of pickup. (See fig.8) (6) The lock of the connector CN601

moved in the direction 2 of an arrow, and a card wire is re-

moved. (See fig.8)

Caution:

• Please solder the short land section f of a pickup before re-

moving a card wire from the connector CN601 board. If a card wire is removed without soldering, a pickup may be destroyed by static electricity. (See fig.8)

• At the time of CD servo board attachment, please remove

the solder of the short land section f of a pickup after attaching a card wire in a connector CN601

of CD servo board is re-

of CD servo

. (See fig.8)

CN601

Hook e

Soldered section c

Wire(yellow)

Wire(white)

Soldered section d

Hook e

Travers mechanism assemblyCD servo board

Fig.7

CD servo board

Pickup

Short land section f

CN601

Traverse mechanism assembly

Fig.8

1-20 (No.MB574)

3.2.6 Removing the pickup (See fig.9 to 11)

• Remove the CD cover and traverse mechanism assembly.

(1) Remove the screw E attaching the plate from top side of

traverse mechanism assembly. (See fig.9)

(2) Remove the plate from fixing part g, and then take out the

plate. (See fig.9)

(3) Remove the two screws F attaching the LAED spring. (See

fig.10)

(4) Take out the feed gear, and then remove the shaft of pick-

up from part h of traverse mechanism assembly. (See fig.10)

(5) Remove the pickup from the part j of traverse mechanism

assembly, and then take out the pickup and shaft together.

(See fig.10) (6) Draws out the shaft from pickup. (See fig.10) (7) Solder the short land section k of pickup. (See fig.11) (8) The lock of the connector of pickup is remover in the direc-

tion of an arrow, and a card wire is removed. (See fig.11)

Caution:

• Please solder the short land section of a pickup before re-

moving a card wire from the connector of pickup. If a card wire is removed without soldering, a pickup may be destroyed by static electricity. (See fig.11)

• At the time of pickup attachment, please remove the solder

of the short land section k of a pickup after attaching a card wire in a connector. (See fig.11)

Feed gear Shaft LEAD spring

Pickup

Short land section

j part

Fig.10

h part

3.2.7 Attaching the pickup (See fig.9 to 12)

• Refer "Removing the pickup"

(1) After attaching a card wire in the connector of a pickup, the

solder of the short land section k of a pickup is removed.

(See fig.11) (2) Attach the shaft to pickup. (See fig.10) (3) A pickup is united with the part j of a traverse mechanism

assembly, and the end of the shaft of a pickup is attached

in the part h. (See fig.10) (4) Attach the LEAD spring and feed gear. (See fig.10) (5) Attach the plate. (See fig.9) (6) A LEAD gear is turned in the direction 1 of an arrow, and

until full movement of the pickup is made to carry out in the

direction 2 of an arrow. (See fig 12)

Plate

EFixing point g

Pickup Connector Card wire

Fig.11

LEAD gear

Traverse mechanism assembly

Fig.12

Pickup

Traverse mechanism assembly

Fig.9

(No.MB574)1-21

3.2.8 Removing the feed motor (See fig.13 to 15)

• Remove the CD cover and traverse mechanism assembly.

(1) Remove the yellow wire and white wire from soldered sec-

tion m of the CD servo board at bottom side of traverse mechanism assembly. (See fig.13)

(2) Remove the screw G attaching the plate, and the take out

the feed gear. (See fig.14 and 15)

(3) Remove the screw H attaching the feed motor, and then

take out the feed motor. (See fig.15)

Reference:

A time of feed motor attachment, the wire should through part n of spindle base. (See fig.15)

Wire(yellow)

Wire(white)

Soldered section m

Traverse mechanism assemblyCD servo board

Fig.13

Plate

Traverse mechanism assembly

Fig.14

Feed gear Feed motor

Traverse mechanism assembly

Fig.15

n part

1-22 (No.MB574)

3.2.9 Removing the switch board

(See fig.6 and 16)

• Remove the CD cover.

(1) Remove the card wire from connector CN602

board from bottom side of CD mechanism assembly. (See

fig.6) (2) Remove the wire from soldered section p of switch board. (3) A switch board is raised pushing the hook q of CD mecha-

nism assembly in the direction of an arrow, and it removes

from the part r.

Reference:

• The wire should hook to part s after attached switch board

to CD mechanism assembly.

• Hook q of CD mechanism assembly should lock by glue.

3.2.10 Removing the motor (See fig.16 and 17)

• Remove the CD cover and tray assembly.

(1) Remove the wire from soldered section p of switch board

from bottom side of CD mechanism assembly. (See fig.16)

(2) Remove the belt from motor pulley from top side of CD

mechanism assembly. (See fig.17)

Caution:

Be careful not to make grease adhere to a belt.

(3) Remove the two screws J attaching the motor to CD mech-

anism assembly, and then take out from bottom side of CD mechanism assembly. (See fig.17)

Reference:

The wire should hook to part s after attached the motor to CD mechanism. (See fig.16)

of switch

Switch board Wire

Soldered section p

r part

s part

CD mechanism assembly

Hook q

CD mechanism assembly

Fig.16

BeltMotor pulley

Fig.17

(No.MB574)1-23

SECTION 4

ADJUSTMENT

4.1 CD TEST MODE

4.1.1 Set the CD TEST MODE

Press STOP [ ] button and CD play/pause [ ] button together and keep then connect AC power cord. LCD indication [ __CD_TEST_1]. Complete the setting TEST MODE.

4.1.2 Set the CD TEST MODE 2 (Indication auto adjustment value)

At LCD indication [ __CD_TEST_1] condition, press [SET] key of the remote controller more than 3 sec. LCD indication change to [ __CD_TEST_2].

Assumes after the TOC reading to be effective, and (E1 ~ E3) is transmittend in order in the table at each SET reception of remote control. The E1 status : the adjustment value (ten kinds) based on status with [1:OK,0:NG] of bit like the HEX data. As follows at each reception [ ] and the toggle are displayed.

Adjust value

Focus gain mantissa Focus gain index part Focus balance adjustment value Focus offset adjustment value Turbulence amplitude when focus gain is adjusted Tracking gain mantissa Tracking gain constant index part Tracking balance adjustment value Tracking offset adjustment value Turbulence amplitude when tracking gain is adjusted Tracking energy gain (Only ST1 :. ) Focus energy gain Tracking balance Focus balance Tracking rough gain Focus rough gain Focus offset

E2 status

(FOCUS system self

adjustment information)

E3 status

(TRACKING system self

adjustment information)

E1 status

(self adjustment information)

FG_ _ FEXP FBAL FOFS FES_ TG_ _ TEXP TBAL TOFS TES_ TAGC FAGC ABC2 ABC1 AGC2 AGC1 AOC1

"CD test mode 2" is released by CANCEL key to remote control. Shifts to "CD test mode 1" (The display is returned to "__CD_TEST_1").

Clearness of test mode

All the CD test modes are made clear by the thing that the POWER key is pushed.

4.2 ERROR HISTORY

4.2.1 Outline

EEPROM use 256byte, when an abnormal state is generated, the factor is written in EEPROM. Worth of a history is left for each item 16 times. ERROR HISTORY.

4.2.2 EEPROM writing

(1) EEPROM information

ITEM EEP address byte Count Value of writing Writing condition Guessed factor

No.

SAFETY Number AD value

Timer playback start NG factor

P.OFF timeout factor

P.OFF factor

Other

0x100 0x110

0x120

0x150

0x160 0x1A0

0x1B0~

1 1

Safety abnormal

No. & AD value

Factor of failure

Factor of power off

When detectiong of SAFETY error, writing SAFETY number and AD value Timer playback is not starting

Time out of power OFF process

Error with CD When starting of power OFF process

Power circuit failure. Damege of card wire. Missing key operation. User operation.

Mechanical and module failure. Damege of card wire. Missing key operation. Mechanical and pickup failure. User operation.

1-24 (No.MB574)

(2) EEPROM writing timing

When abnormality occurs respectively, the value of the generated item is rewritten. at the following. The writing method does the batch writing 16 bytes with PAGE WRITE.

exp.) The data taking to EEPROM

address data

120 01121 02122

12D 0D12E 0E12F

After it shifts in the direction of the subordinate position by one byte, "20" is written at head byte when ERROR information new "20" is written. The data of final byte is thrown away.

address data

(3) EEPROM clear condition

120 20121 01122

12D 0C12E 0D12F

When COLD SET is fixed by remote control code [ 0 ]+[ ]+[STANDBY/ON] receive, the ERROR HISTORY part is cleared (ALL0x00).

RECEIVE

[ 0 ]

[ ]

EEPROM

E.HISTORY

CLEAR

COLD SET

INDICATION

PROCESSING

[STANDBY/ON]

Do not clear EEPROM when COLD SET processing at power to ON. In case of clear EEPROM, so that the ERROR HISTORY data may disappear when the set returned from the user.

4.2.3 Reading the ERROR HISTORY

Reading ERROR HISTORY is assumed to be able to read set both POWER ON and turning off. The reading method is done by the following ways.

No.

Operation Indication System micon processing

1 Receive the remocon code.

[COLOR]+[ ]+STANDBY/ON]

2 Address change to 0x01 by |<<, >>|

(skip) key of remote controller. Address change to 0x10 by G|<<,

ERR I NFO

00 : 01

address data

Read out the ERROR HISTORY information from EEPROM.

Indicate the read out value by key operation.

G>>| (GROUP SKIP) key of remote controller. Indication is start address to 00 then indicate staep by 1 byte.

3 Cancel the mode by remocon code.

01 : 05 10 : 21 0F: 11 00 : 01 F0 : 00

Return to normal function indication.

[COLOR]+[ ]+STANDBY/ON]

(No.MB574)1-25

4.2.4 ERROR details

Item

SAFETY

Number

AD value

Timer playback start NG factor

P.OFF timeout factor 50

CD 60

P. O F F

OTHER

To p

address

Low address and contents

SAFETY number at SAFETY occur. 1~5 (SAFETY watch umber difference by model) AD value at SAFETY occur 00~FF Factor that was not able to be playbacked at timer start of the playback. 10 CD NO DISC 11 CD OPEN 90 OTHER Factor that was not able to be power off. 10 CD TIMEOUT 70 MECHA CLOSE TIMEOUT 90 OTHER Abnormal factor concerning CD 31 SLED IN TIMEOUT SLED inside track shift timeout 32 SLED OUT TIMEOUT SLED outside track shift timeout 34 Q CODE 3s TIMEOUT Q code input 3sec timeout 35 TOC READ TIMEOUT TOC read timeout 36 SEARCH TIMEOUT Search timeout 3B FOCUS TIMEOUT Focus out ->[/FLOCK=H] detection 3C PLAY Q CODE ERROR Q Code continuous Error in Play 70 MECHA CLOSE TIMEOUT 71 MECHA OPEN TIMEOUT Factor that was power off 10 NORMAL 20 AUTO STANDBY 30 SLEEP 40 TIMER

1-26 (No.MB574)

SECTION 5

TROUBLESHOOTING

This service manual does not describe TROUBLESHOOTING.

(No.MB574)1-27

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