Aiwa 4ZG-1 Service Manual

4ZG-1

English

SERVICE MANUAL

KSM-2131FAM

CD MECHANISM

Z3NDSH Z3RDLSHJ Z3RNDSHJ Z3RNDSH Z3RNSMDJ Z3RSHMDJ PZ3MD Z4RNDSH Z4RNSHMDJ

TYPE

BASIC CD MECHANISM :

BASIC CD MECHANISM

3ZG-2 E1 3ZG-2 E3 3ZG-2 E1 3ZG-2 E1 3ZG-2 E1 3ZG-2 E3 3ZG-2 E4 KSM-2131 FAM KSM-2131 FAM

3ZG-2 E1 3ZG-2 E3 3ZG-2 E4

S/M Code No. 09-992-325-4N2

DATA

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING

This set employs laser. Therefore, be sure to follow carefully the instructions below when servicing.

WARNING!

WHEN SERVICING, DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK.

Caution: Invisible laser radiation when open and interlocks defeated avoid exposure to beam. Advarsel:Usynling laserståling ved åbning, når sikkerhedsafbrydere er ude af funktion. Undgå udsættelse for stråling.

VAROITUS!

Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa käyt-täjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.

VARNING!

Om apparaten används på annat sätt än vad som specificeras i denna bruksanvising, kan användaren utsättas för osynling laserstrålning, som överskrider gränsen för laserklass 1.

CAUTION

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

ATTENTION

L'utilisation de commandes, réglages ou procédures autres que ceux spécifiés peut entraîner une dangereuse exposition aux radiations.

ADVARSEL!

Usynlig laserståling ved åbning, når sikkerhedsafbrydereer ude af funktion. Undgå udsættelse for stråling.

This Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the rear exterior.

CLASS 1 KLASSE 1 LUOKAN 1 KLASS 1

LASER PRODUCT LASER PRODUKT LASER LAITE LASER APPARAT

Precaution to replace Optical block (KSS-213F)

Body or clothes electrostatic potential could ruin laser diode in the optical block. Be sure ground body and workbench, and use care the clothes do not touch the diode.

1) After the connection, remove solder shown in the right figure.

How to Adjust the Rotating Phase of the Gear, Main Cam

1) Push down the hooking catch of the CHAS. MECH, and remove the TRAY.

2) Align the arrow mark of the Gear, Main Cam with the black round mark of the CHAS, MECHA as shown below.

3) Confirm that the Slide, Mech Cam is located in the right position, then insert the TRAY gently.

Caution: If the rotating phase of the Gear, Main Cam is

incorrectly adjusted, the chucking operation and tray movement will have malfunction.

Align the arrow 2 mark with the black round • mark.

ELECTRICAL MAIN PARTS LIST

REF. NO PART NO. KANRI DESCRIPTION

NO.

IC 87-A20-446-010 C-IC,LA9241ML

87-A20-459-010 C-IC,LC78622ED 87-A20-445-010 IC,BA5936

<Z4RNDSH,Z4RNSHMDJ,Z3RNSMDJ,PZ3MD>

88-NF9-621-010 IC,BA5936S

<Z3NDSH,Z3RDLSHJ,Z3RNDSHJ,Z3RNDSHM>

TRANSISTOR 89-113-187-080 TR,2SA1318TU<Z3RNSMDJ,PZ3MD>

87-026-609-080 TR,KTA1266GR

87-A30-047-080 TR,CSD655E<Z4RNSHMDJ> 87-A30-073-080 C-TR,RT1N 141C<Z3RDLSHJ,PZ3MD> 87-A30-075-080 C-TR,2SA1235F

DIODE 87-A40-527-080 DIODE,1SS133 T-91S

87-020-465-080 DIODE,1SS133 (110MA)

87-A40-470-080 DIODE,1SS254<PZ3MD>

3CD C.B

C11 87-012-393-080 C-CAP,S 0.22-16 R K C12 87-012-157-020 C-CAP,S 330P-50 CH C13 87-016-369-080 C-CAP,S 0.033-25 B K C14 87-A10-201-080 C-CAP,S0.33-16 KB C15 87-010-213-020 C-CAP,S 0.015-25 B

C16 87-016-083-080 C-CAP,S 0.15-16 RK C17 87-010-184-020 C-CAP,S 3300P-50 B C18 87-016-083-080 C-CAP,S 0.15-16 RK C19 87-010-198-020 C-CAP,S 0.022-25 B<EXCEPT PZ3MD> C19 87-016-369-080 C-CAP,S 0.033-25 B K<PZ3MD>

C20 87-010-178-020 C-CAP,S 1000P-50 B C21 87-012-393-080 C-CAP,S 0.22-16 R K C22 87-016-083-080 C-CAP,S 0.15-16 RK C23 87-010-197-020 C-CAP,S 0.01-25 B C24 87-010-186-020 C-CAP,S 4700P-50 B

C25 87-010-400-040 CAP,E 0.47-50 C26 87-010-322-020 C-CAP,S 100P-50 CH C27 87-010-382-040 CAP,E 22-25 SME C28 87-010-545-040 CAP,E 0.22-50 SME C29 87-010-184-020 C-CAP,S 3300P-50 B

C31 87-010-186-020 C-CAP,S 4700P-50 B C32 87-010-315-020 C-CAP,S 27P-50 CH<EXCEPT PZ3MD> C32 87-010-312-080 C-CAP,S 15P-50 CH<PZ3MD> C33 87-016-081-080 C-CAP,S 0.1-16 RK C35 87-010-196-020 C-CAP,S 0.1-25 Z F GRM

C37 87-010-405-080 CAP, ELECT 10-50V C38 87-010-263-080 CAP, ELECT 100-10V C39 87-010-596-020 C-CAP,S 0.047-16 RK C40 87-010-401-080 CAP, ELECT 1-50V C41 87-010-805-080 CAP, S 1-16

C42 87-010-263-080 CAP, ELECT 100-10V C43 87-010-197-020 C-CAP,S 0.01-25 B C44 87-010-263-080 CAP, ELECT 100-10V C46 87-010-196-020 C-CAP,S 0.1-25 Z F GRM C47 87-010-260-080 CAP, ELECT 47-25V

C48 87-010-196-020 C-CAP,S 0.1-25 Z F GRM C49 87-010-404-080 CAP, ELECT 4.7-50V C50 87-010-197-020 C-CAP,S 0.01-25 B C51 87-010-263-040 CAP,E 100-10 C52 87-012-156-080 C-CAP,S 220P-50 CH

C101 87-016-369-020 C-CAP,S 0.033-25 B K

REF. NO PART NO. KANRI DESCRIPTION

C102 87-016-081-080 C-CAP,S 0.1-16 RK C103 87-010-321-020 C-CAP,S 82P-50 CH C104 87-012-154-020 C-CAP,S 150P-50 J CH GRM C105 87-010-196-020 C-CAP,S 0.1-25 Z F GRM C109 87-010-197-020 C-CAP,S 0.01-25 B

C111 87-010-312-020 C-CAP,S 15P-50 J CH C112 87-010-154-020 C-CAP,S 10P-50 CH C113 87-010-322-020 C-CAP,S 100P-50 CH C115 87-010-404-080 CAP, ELECT 4.7-50V C116 87-010-196-020 C-CAP,S 0.1-25 Z F GRM

C117 87-010-263-040 CAP,E 100-10 C118 87-010-178-020 C-CAP,S 1000P-50 B C119 87-010-154-020 C-CAP,S 10P-50 CH C121 87-010-403-080 CAP, ELECT 3.3-50V C122 87-010-403-080 CAP, ELECT 3.3-50V

C123 87-012-157-020 C-CAP,S 330P-50 CH C124 87-012-157-020 C-CAP,S 330P-50 CH C131 87-010-382-080 CAP, ELECT 22-25V C191 87-010-263-040 CAP,E 100-10 C301 87-010-196-020 C-CAP,S 0.1-25 Z F GRM

C302 87-010-382-080 CAP, ELECT 22-25V C303 87-010-260-040 CAP,E 47-25 SME C501 87-A10-730-080 CAP,E 1000-16 SMG C502 87-010-197-020 C-CAP,S 0.01-25 B C504 87-010-196-020 C-CAP,S 0.1-25 Z F GRM

C505 87-010-196-020 C-CAP,S 0.1-25 Z F GRM C506 87-010-196-020 C-CAP,S 0.1-25 Z F GRM C507 87-010-196-020 C-CAP,S 0.1-25 Z F GRM C509 87-010-196-020 C-CAP,S 0.1-25 Z F GRM C510 87-010-196-020 C-CAP,S 0.1-25 Z F GRM

C603 87-010-196-020 C-CAP,S 0.1-25 Z F GRM C610 87-010-405-080 CAP, ELECT 10-50V C611 87-010-405-080 CAP, ELECT 10-50V C701 87-010-405-040 CAP,E 10-50 C705 87-010-197-020 C-CAP,S 0.01-25 B

C706 87-010-196-020 C-CAP,S 0.1-25 Z F GRM C707 87-010-196-020 C-CAP,S 0.1-25 Z F GRM C711 87-010-322-020 C-CAP,S 100P-50 CH C712 87-010-322-020 C-CAP,S 100P-50 CH C713 87-010-322-020 C-CAP,S 100P-50 CH

C901 87-010-260-080 CAP, ELECT 47-25V C902 87-010-196-020 C-CAP,S 0.1-25 Z F GRM CON3 84-ZG1-648-010 CONN ASSY,6P<Z4RNDSH,Z4RNSHMDJ> CON3 87-099-199-010 CONN,6P 6216 H

CON4 87-099-212-010 CONN,5P 6216 V

CON5 87-099-199-010 CONN,6P 6216 H CON6 87-099-030-010 CONN,13P 6216H CON8 87-A60-248-010 CONN,16P H CFF1416

CON8 87-A60-429-010 CONN,16P H TOC-A CON9 87-009-345-010 CONN,2P PH H

FC1 85-NFT-611-110 FF-CABLE 16P-1.0 FC4 84-ZG1-672-010 F-CABLE,5P 1.25 210MM WHITE N FC5 84-ZG1-630-010 CABLE FFC 6P-1.25

L11 87-005-602-080 COIL,10UH LAV35 J L101 87-005-614-080 COIL 100UH LAV35 J

L102 87-005-602-080 COIL,10UH LAV35 J L902 87-A50-189-080 C-COIL,S BLM21B272S

LED901 87-A40-558-010 LED,SLZ-8128A-01-A<EXCEPT PZ3MD> LED901 87-A40-123-010 LED,SLZ-8128A-01-B<PZ3MD> M601 87-045-305-010 MOTOR, RF-500TB DC-5V (2MA)

R50 88-118-124-020 C-RES,S 120K-1/10W J

R51 88-118-124-020 C-RES,S 120K-1/10W J

NO.

<Z4RNDSH,Z4RNSHMDJ>

<Z4RNSHMDJ,Z3RNSMDJ,PZ3MD>

REF. NO PART NO. KANRI DESCRIPTION

NO.

R52 88-118-124-020 C-RES,S 120K-1/10W J

R53 88-118-124-020 C-RES,S 120K-1/10W J

<EXCEPT PZ3MD> SFR101 87-A90-787-080 SFR,100K H HOKU SW701 87-036-109-010 PUSH SWITCH SW702 87-036-109-010 PUSH SWITCH

X101 87-A70-046-010 VIB,XTAL 16.934MHZ

LED C.B<Z3RDLSHJ,PZ3MD> LED701 87-A40-316-080 LED,SLR-56PCT31 GRN<PZ3MD>

LED702 87-A40-316-080 LED,SLR-56PCT31 GRN<Z3RDLSHJ> LED702 87-A40-268-080 LED,SLH-56DCT31 ORN<PZ3MD> LED703 87-A40-268-080 LED,SLH-56DCT31 ORN

<Z3RDLSHJ,PZ3MD>

LED704 87-A40-316-080 LED,SLR-56PCT31 GRN<PZ3MD>

T-T C.B C401 87-A11-148-080 CAP,TC U 0.1-50 Z F

CON401 86-NFZ-675-010 CONN,5P H 6216-11H M401 87-045-364-010 MOTOR(BCH3B14) PS401 87-026-573-010 IC,GP1S53V

<Z4RNDSH,Z4RNSHMDJ,Z3RNSMDJ,PZ3MD>

PS401 88-NF9-627-010 SNSR,SG-240

<Z3NDSH,Z3RDLSHJ,Z3RNDSHJ,Z3RNDSHM>

REF. NO PART NO. KANRI DESCRIPTION

NO.

DRIVE C.B<EXCEPT Z4RNDSH,Z4RNSHMDJ> M1 87-045-358-010 MOT,RF-310TA 43

M2 87-045-356-010 MOT,RF-310TA 30

SW1 87-A90-042-010 SW,MSW-17310MVPO

MOTOR C.B<Z4RNDSH,Z4RNSHMDJ> M2 9X-262-513-210 SLED MOTOR<Z4RNDSH,Z4RNSHMDJ>

PIN3 91-564-722-110 CONNECTOR 6P<Z4RNDSH,Z4RNSHMDJ> SW1 91-572-085-110 LEAF SW<Z4RNDSH,Z4RNSHMDJ>

• Regarding connectors, they are not stocked as they are not the initial order items.

The connectors are available after they are supplied from connector manufacturers upon the order is received.

CHIP RESISTOR PART CODE

Chip Resistor Part Coding

Resistor Code

Chip resistor

Wattage Type Tolerance 1/16W 1005 5% CJ

1/16W 1/10W

1/8W

TRANSISTOR ILLUSTRATION

1608 2125

3216

5% 5%

E C B

Symbol

CJ CJ

Figure

Value of resistor

Form

Dimensions (mm)

0.55

Resistor Code

108 118

128

LW t

1.0 0.5 0.35 104

1.6 0.8 0.45 2 1.25 0.45

3.2

1.6

: A : A

2SA1235 2SC3052 DTC144TK

2SD655 KTA1266

BLOCK DIAGRAM

WIRING

234567

11 12 13

109

SCHEMATIC DIAGRAM

1211

WAVE FORM

IC BLOCK DIAGRAM

1 IC11 Pin = (RFSM) VOLT/DIV: 0.5V

TIME/DIV: 1µS

MAX

2.0±0.1 Vp-p

0 V

EYE PATTERN must be CLEAR and MAX

2 IC11 Pin ^ (FD) VOLT/DIV: 100mV

TIME/DIV: 1mS

VREF

4 IC11 Pin ≥ (SPD) VOLT/DIV: 100mV

TIME/DIV: 1mS

VREF

5 IC11 Pin ª (SLD) VOLT/DIV: 200mV

TIME/DIV: 2S

VREF

IC, BA5936

3 IC11 Pin % (TO) VOLT/DIV: 100mV

TIME/DIV: 1mS

VREF

1413

IC DESCRIPTION IC, LA9241M

Pin No. Pin Name I/O Description

FIN2

FIN1

Pin to which external pickup photo diode is connected. RF signal is created by adding

with the FIN1 pin signal. FE signal is created by subtracting from the FIN1 pin signal.

Pin to which external pickup photo diode is connected.

10 11

13 14 15 16

4 5 6 7

TE–

TESI

SCI

TH TA

TD–

JP TO FD

FD–

Pin to which external pickup photo diode is connected. TE signal is created by

subtracting from the F pin signal.

Pin to which external pickup photo diode is connected.

DC component of the TE signal is input.

Pin to which external resistor setting the TE signal gain is connected between the TE pin.

TE signal output pin. TES “Track Error Sense” comparator input pin. TE signal is passed through a band-

pass filter then input.

Shock detection signal input pin.

Tracking gain time constant setting pin.

TA amplifier output pin. Pin to which external tracking phase compensation constants are connected between

the TD and VR pins.

Tracking phase compensation setting pin.

Tracking jump signal (kick pulse) amplitude setting pin.

Tracking control signal output pin.

Focusing control signal output pin. Pin to which external focusing phase compensation constants are connected between

the FD and FA pins.

20 21 22 23 24 25

27 28

29 30, 31 32, 33

FA–

FE–

AGND

SPG

SP–

SPD

SLEQ

SLD

SL–, SL+

JP–, JP+

TGL

Pin to which external focusing phase compensation constants are connected between

the FD– and FA– pins. Pin to which external focusing phase compensation constants are connected between

the FA and FE pins.

FE signal output pin.

Pin to which external FE signal gain setting resistor is connected between the FE pin.

—

Analog signal GND.

—

No connection.

Single ended output of the CV+ and CV– pin input signal.

Pin to which external spindle gain setting resistor in 12 cm mode is connected. Pin to which external spindle phase compensation constants are connected together

with SPD pin.

Spindle control signal output pin.

Pin to which external sled phase compensation constants are connected.

Sled control signal output pin.

Sled advance signal input pin from microprocessor.

Tracking jump signal input pin from DSP.

Tracking gain control signal input from DSP. Low gain when TGL = H.

TOFF

Tracking off control signal input pin from DSP. Off when TOFF = H.

Pin No. Pin Name I/O Description

TES

Pin from which TES signal is output to DSP.

39, 40

44 45 46 47 48 49 50 51 52 53 54 55

HFL

SLOF

CV–, CV+

RFSM

RFS–

SLC

SLI

DGND

FSC TBC

NC DEF CLK

DAT

DRF

FSS

“High Frequency Level” is used to judge whether the main beam position is on top of

bit or on top of mirror.

Sled servo off control input pin.

CLV error signal input pin from DSP.

RF output pin. RF gain setting and EFM signal 3T compensation constant setting pin together with

RFSM pin. “Slice Level Control” is the output pin which controls the RF signal data slice level by

DSP.

Input pin which control the data slice level by the DSP.

—

Digital system GND.

Output pin to which external focus search smoothing capacitor is connected.

“Tracking Balance Control” EF balance variable range setting pin.

—

No connection.

Disc defect detector output pin.

Reference clock input pin. 4.23 MHz of the DSP is input.

Microprocessor command clock input pin.

Microprocessor command data input pin.

Microprocessor command chip enable input pin.

“Detect RF” RF level detector output.

“Focus Search Select” focus search mode (± search/+ search) select pin. 56 57 58 59 60 61 62 63 64

VCC2

REFI

LF2 PH1 BH1

LDD

LDS

VCC1

—

Servo system and digital system Vcc pin.

—

Pin to which external bypass capacitor for reference voltage is connected.

Reference voltage output pin.

Disc defect detector time constant setting pin.

Pin to which external capacitor for RF signal peak holding is connected.

Pin to which external capacitor for RF signal bottom holding is connected.

APC circuit output pin.

APC circuit input pin.

—

RF system Vcc pin.

IC, LC78622ED

Pin No. Pin Name I/O Description

1 2 3 4 5

DEFI

TAI

PDO

VVSS

ISET

Defect sense signal (DEF) input pin. (Connect to 0V when not used).

—

Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V. Phase comparator output pin to control external VCO. GND pin for built-in VCO. Be sure to connect to 0V.

For PLL.

Pin to which external resistor adjusting the PD0 output current. 6 7 8 9

10 11

12, 13

15 16 17 18

19, 20

24-28

VVDD

VSS

EFMO

EFMIN

TEST2

CLV+, CLV–

___

V/P

HFL TES

TOFF

TGL

JP+, JP–

PCK

FSEQ

VDD

SL+ - PUIN

EMPH

—

O O O O

—

I/O

Power supply pin for built-in VCO.

Pin for VCO frequency range adjustment.

Digital system GND. Be sure to connect to 0V.

EFM signal output pin.

For slice level control.

I I

Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.

EFM signal input pin.

Disc motor control output. Three level output is possible using command. Rough servo or phase control automatic selection monitoring output pin. Rough servo at H. Phase servo at L.

Track detect signal input pin. Schmidt input.

Tracking error signal input pin. Schmidt input. Tracking OFF output pin. Tracking gain selection output pin. Gain boost at L. Track jump control signal output pin. Three level output is possible using command. EFM data playback clock monitoring pin 4.3218 MHz when phase is locked in. Sync signal detection output pin. H when the sync signal which is detected from EFM

signal and thesync signal which is internally generated agree. Digital system power supply pin.

The pin is controlled by the serial data command from microprocessor. When

General purpose input/output pin 1 to 5.

the pin is not used, set the pin to the input terminal and connect to 0V, or alternately set the pin to output terminal and leave the pin open.

De-emphasis monitor output pin. De-emphasis disc is being played back at H. 30 31

32, 33

34 35 36 37 38 39 40 41 42

C2F

DOUT

TEST3, TEST4

N.C.

MUTEL

LVDD LCHO

LVSS

RVSS RCHO RVDD

MUTER

C2 flag output pin.

DIGITAL OUT output pin. (EIAJ format).

Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.

—

Not used. Set the pin to open.

—

L-channel 1-bit DAC.

O — —

L-channel mute output pin. L-channel power supply pin. L-channel output pin. L-channel GND. Be sure to connect to 0V. R-channel GND. Be sure to connect to 0V. R-channel output pin.

R-channel 1-bit DAC.

—

R-channel power supply pin. R-channel mute output pin.

Pin No. Pin Name I/O Description

43 44 45 46 47

XVDD XOUT

XIN XVSS SBSY

—

Crystal oscillator power supply pin.

Pin to which external 16.9344 MHz crystal oscillator is connected.

—

Crystal oscillator GND pin. Be sure to connect to 0V.

Subcode block sync signal output pin. 48 49 50

53 54 55 56 57 58 59 60 61 62

EFLG

SFSY

SBCK

FSX

WRQ RWC

SQOUT

COIN

___________

CQCK

________

RES

TST11

16M

4.2M

TEST5

______

TEST1

C1, C2, single and dual correction monitoring pin.

Subcode P, Q, R, S, T, U and W output pin.

Subcode frame sync signal output pin. Falls down when subcode enters standby.

Subcode read clock input pin. Schmidt input. (Be sure to connected to 0V when not in

use.)

Pin outputting the 7.35 kHz sync signal which is generated by dividing frequency of

crystal oscillator.

Subcode Q output standby output pin.

Read/write control input pin. Schmidt input.

Subcode Q output pin.

Command input pin from microprocessor.

Command input read clock or subcode read input clock from SQOUT pin

LC78622 reset input pin. Set this pin to L once when the main power is turned on.

Test signal output pin. Use this pin as open (normally L output).

16.9344 MHz output pin.

4.2336 MHz output pin.

Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.

Chip select signal input pin with built-in pull-down resistor. Be sure to connect to 0V

while it is not controlling.

Test signal input pin without built-in pull-down resistor. Be sure to connect to 0V.

Note: The same potential must be applied to the respective power supply terminals. (VDD, VVDD, LVDD, RVDD, XVDD)

TEST MODE

1. How to Activate CD Test Mode Insert the AC plug while pressing the function CD button. All FL display tubes will light up, and the test mode will be activated.

3. CD Test Mode Functions When test mode is activated, the following mode functions from No.1 to No.5 can be used by pressing the operation keys.

2. How to Cancel CD Test Mode Either one of the following operations will cancel the CD test mode.

• Press the function button. • Press the power switch button. (except CD function button) • Disconnect the AC plug

Mode/No.

Start mode

No.1

Search mode

No.2

Play mode

No.3

Traverse mode

No.4

Sled mode

No.5

Operation

Activation

9 key

1 2 key

key

;

ﬁ key ﬂ

FL display

All lamps light

Operation

• Test mode is activated.

• CD block power is ON.

• Laser diode turns always ON.

• Continual focus search (The pickup lens repeats the fullswing up-down motion.)

* Avoid continual searches that last for

more than 10 minutes.

* NOTE 1

• Normal playback

• Focus search is continued if TOC cannot be read. * NOTE 1

• During normal disc playback Press once; tracking servo OFF Press twice; tracking servo ON

* NOTE 2

• Pickup moves to the outermost track

• Pickup moves to the innermost track

* NOTE 3 (During playback, machine operates normally.)

Contents

• FL display check (All displays light.)

• APC circuit check

• Laser current measurement (Laser current control. Across a resistor connected between emitter and GND.)

FOCUS SERVO

• Check focus search waveform

• Check focus error waveform (FOK/FZC are not monitored in the

search mode)

FOCUS SERVO/TRACKING SERVO CLV SERVO/SLED SERVO Check DRF TRACKING SERVO ON/OFF Tracking balance (traverse) check

SLED SERVO Check SLED mechanism operation

* NOTE 1: There are cases when the tracking servo cannot be locked owing to the protection circuit being operated when heat builds up

in the driver IC if the focus search is operated continually for more than 10 minutes. In these cases the power supply should be switched off for 10 minutes until heat has been reduced and then re-started.

* NOTE 2: Do not press the ﬁ or ﬂ keys when the machine is in the

after the

status has been canceled. If the ﬁ or ﬂ keys are pressed in the ; status, press the 9 key and return to the start mode

;

status is active. If they are pressed, playback will not be possible

;

(No.1).

* NOTE 3: When pressing the ﬁ or ﬂ keys, take care to avoid damage to the gears. Because the sled motor is activated when the ﬁ or ﬂ

keys are pressed, even when the pick-up is at the outermost or innermost track.

4. Operation Outline The operation of each mode is carried out in the direction of the arrows from the start mode as indicated in the following illustration.

No. 2 No. 3

1 2

No. 1

Start mode

(All FLs light up.)

Search mode

ﬁ ﬂ

No. 5 No. 4

Sled mode

;

Play mode

1 2

;

Traverse mode

If the DISC DIRECT PLAY button is pressed, the machine performs the same operation as the PLAY button is pressed as shown. If the tray is opened by pressing OPEN/CLOSE button during Play mode or Traverse mode, the machine returns to the Start mode.

ELECTRICAL ADJUSTMENT

3CD C.B (PATTERN SIDE)

R46

R16

TP1 (TE)

SFR101

TP3 (VREF)

IC11

TP2 (RF)

Note: • Connect a probe (10: 1) of the oscilloscope test point

for adjustment.

• Connect ground (-) terminal of oscilloscope probe to TP3 (VREF) for all adjustment.

1. Focus Bias Adjustment Make the focus bias adjustment when replacing and repairing the optical block.

Oscilloscope

(DC range)

TP2 (RF)

TP3 (VREF)

1) Connect an oscilloscope to test points TP2 (RF) and TP3 (VREF).

2) Turn on the power switch.

3) Insert test disc TCD-782 (YEDS-18) and play back the second program.

4) Adjust SFR101 so that RF signal of the test point TP2 (RF) is MAX and CLEARREST.

+ –

2. Tracking Balance Check

Oscilloscope

(DC range)

TP1 (TE)

TP3 (VREF)

1) Connect an oscilloscope to test points TP1 (TE) and TP3 (VREF).

2) Start up the CD test mode.

3) Insert the test disc TCD-782 (YEDS-18) and enter the traverse mode of the CD test mode.

4) Confirm that the traverse waveform on an oscilloscope is vertically symmetrical as shown in the figure below.

5) After confirming the waveform, release the CD test mode.

VREF

A=B

+ –

MAX

1.4±0.1 Vp-p

EYE PATTERN must be CLEAR and MAX.

VOLT/DIV: 0.5V TIME/DIV: 0.5µS

Note: The current of the laser signal can be checked with the

voltages on both sides of R46 (voltage across 10Ω). The difference for the specified value shown on the label must be within ± 6.0mA.

KSS-213B

15165

SG442

Laser current Iop =

44.2mA

Voltage across R46

10Ω

VOLT/DIV: 20mV TIME/DIV: 1mS

MECHANICAL EXPLODED VIEW 1/1

CHAS,MECHA

P.C.B

3ZG-2 E1 3ZG-2 E3 3ZG-2 E4 KSM-2131FAM

P.C.B

HLDR,MECHA

CUSH CD A

MECHANICAL PARTS LIST 1/1

REF. NO PART NO. KANRI DESCRIPTION

NO.

1 84-ZG1-239-210 PULLY,WORM N 2 84-ZG1-267-010 PULLEY,LOAD MO 8

2 81-ZG1-212-010 PULLY,LOAD MO

<Z4RNDSH,Z4RNSHMDJ,PZ3MD> 3 81-ZG1-239-010 S-SCREW,TT 4 81-ZG1-291-110 GEAR,TRAY RELAY NO3

5 81-ZG1-271-010 S-SCREW MECH REAR 6 84-ZG1-290-010 HLDR,MAGNET J NAT

<Z4RNSHMDJ,Z3RNDSHJ,Z3RNSMDJ> 6 84-ZG1-295-010 HLDR,MAGNET JV<Z3RDLSHJ> 6 84-ZG1-289-010 HLDR,MAGNET NAT

<Z4RNDSH,Z3NDSH,Z3RNDSHM>

7 81-ZG1-229-110 PLATE,MAGNET

<Z4RNDSH,Z4RNSHMDJ,PZ3MD>

7 81-ZG1-255-110 PLATE,MAGNET MK2

<EXCEPT Z4RNDSH,Z4RNSHMDJ,PZ3MD> 8 83-ZG3-213-010 LVR,SW 9 84-ZG1-003-310 TRAY,NO2-B<Z3NDSH,PZ3MD> 9 84-ZG1-008-210 TRAY,NO3<EXCEPT Z3NDSH,PZ3MD> 10 87-045-364-010 MOTOR(BCH3B14)

11 84-ZG1-005-210 TURNTABLE,NO1(*) 12 84-ZG1-011-010 REFLECTOR,CD<Z3RDLSHJ,PZ3MD> 13 84-ZG1-248-010 SPR-C,WORM 14 84-ZG1-208-210 LEVER,CAM<PZ3MD> 14 84-ZG1-266-010 LEVER,CAN 8<EXCEPT PZ3MD>

15 84-ZG1-209-010 BELT,SQ1.8-117.7 16 84-ZG1-211-010 SPR-E CAM S 17 84-ZG1-203-410 GEAR,MAIN CAM

<EXCEPT Z3RDLSHJ,PZ3MD> 17 84-ZG1-215-410 GEAR,MAIN CAM BLU<Z3RDLSHJ,PZ3MD> 18 84-ZG1-216-310 SLIDE,MECHA CAM YEL

<Z3RDLSHJ,PZ3MD>

18 84-ZG1-204-310 SLIDER,MECHA CAM

<EXCEPT Z3RDLSHJ,PZ3MD> 19 84-ZG1-205-210 GEAR,TRAY (*) 20 84-ZG1-206-110 GEAR,RELAY<PZ3MD> 20 84-ZG1-274-010 GEAR,RELAY 8<EXCEPT PZ3MD> 21 84-ZG1-207-010 PULLEY,RELAY

REF. NO PART NO. KANRI DESCRIPTION

22 84-ZG1-221-010 GEAR,MAIN TT<PZ3MD> 22 84-ZG1-269-010 GEAR,MAIN TT 4<EXCEPT PZ3MD> 23 84-ZG1-238-010 GEAR,WORM N 24 84-ZG1-224-010 LEVER,TT<Z3RDLSHJ,PZ3MD> 24 84-ZG1-288-010 LEVER,TT NAT

25 84-ZG1-225-010 BELT,SQ1.0-63.3 26 84-ZG1-300-010 MAGNET,CLAMPER 4P

26 84-ZG1-296-010 MAGNET,CLAMPER 93ZZ<Z3RDLSHJ> 26 84-ZG1-268-010 MAGNET,CLAMPER 97

27 87-045-305-010 MOTOR, RF-500TB DC-5V (2MA)

28 84-ZG1-259-010 SPR-P,WORM 29 84-ZG1-244-310 CABI,OPTICAL

29 84-ZG1-276-010 CABI,OPTICAL C<Z4RNDSH,Z4RNSHMDJ> 30 84-ZG1-261-010 LID,OPTICAL 31 84-ZG1-287-010 HLDR,MECHA NAT

32 84-ZG1-286-010 CHAS,MECHA NAT

A 87-067-703-010 TAPPING SCREW, BVT2+3-10 C 87-067-981-010 BVT2+3-6 BLK

NO.

<Z4RNDSH,Z4RNSHMDJ>

<Z3RDLSHJ,PZ3MD>

COLOR NAME TABLE

Basic color symbol Color Basic color symbol Color Basic color symbol Color

B Black C Cream D Orange G Green H Gray L Blue

LT Transparent Blue N Gold P Pink

R Red S Silver ST Titan Silver

T Brown V Violet W White WT Transparent White Y Yellow YT Transparent Yellow LM Metallic Blue LL Light Blue GT Transparent Green

LD Dark Blue DT Transparent Orange

CD MECHANISM EXPLODED VIEW 1/1 (3ZG-2 E1)

SW1

DRIVE C.B

CD MECHANISM PARTS LIST 1/1 (3ZG-2 E1)

REF. NO PART NO. KANRI DESCRIPTION

NO.

1 83-ZG2-243-110 CHAS ASSY,SHT 2 83-ZG2-235-010 GEAR,A3 3 83-ZG2-205-210 GEAR,B 4 83-ZG2-236-010 GEAR MOTOR 3 5 83-ZG2-240-010 SHAFT,SLIDE 3

6 87-A90-836-010 PICKUP,KSS-213F 8 83-ZG2-233-010 TURN TABLE,A5 11 83-ZG2-245-110 LEVER,SHUTTER 12 83-ZG2-250-010 SPR-E,SHT 2 A 87-261-032-210 SCREW V+2-3

CD MECHANISM EXPLODED VIEW 1/1 (3ZG-2 E3)

P.C.B

CD MECHANISM PARTS LIST 1/1 (3ZG-2 E3)

REF. NO PART NO. KANRI DESCRIPTION

NO.

1 83-ZG2-243-210 CHAS ASSY,SHT 2 83-ZG2-235-010 GEAR,A3 3 83-ZG2-205-210 GEAR,B 4 83-ZG2-236-010 GEAR MOTOR 3 5 83-ZG2-253-010 SHAFT,SLIDE 5

6 87-A90-836-010 PICKUP,KSS-213F 8 83-ZG2-227-210 TURN TABLE,C1 11 83-ZG2-245-410 LEVER,SHUTTER 12 83-ZG2-250-110 SPR-E,SHT 2 A 87-261-032-210 SCREW V+2-3

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