JVC XL-PM20SL Service Manual

SERVICE MANUAL

PORTABLE CD PLAYER

XL-PM20SL

Area suffix

C -------------------------- Canada
E ----------- Continental Europe

XL-PM20SL

Contents

Safety precautions
Preventing static electricity
Important for laser products
Disassembly method

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

1-2
1-4
1-5
1-6

Adjustment method
Trouble shooting
Description of major ICs

1-8
1-8
1-9 17

No.21133

Aug. 2002

XL-PM20SL

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 manufacturer`s 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 re-assembling.

5. Leakage currnet check (Electrical shock hazard testing)
After re-assembling 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 ohms per volt or more
sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor
between an exposed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC
voltmeter.
Move the resistor connection to each exposed metal part,
particularly any exposed metal part having a return path to
the chassis, and meausre 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.).

0.15 F AC TYPE

1500 10W

Good earth ground

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

Place this
probe on
each exposed
metal part.

!

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.

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.

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.
(This regulation does not correspond to J and C version.)

1-2

XL-PM20SL

(U.K only)

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.

2. Any unauthorised design alterations or additions will void the manufacturer's guarantee ; furthermore the
manufacturer cannot accept responsibility for personal injury or property damage resulting therefrom.

3. Essential safety critical components are identified by ( ) on the Parts List and by shading on the
schematics, and must never be replaced by parts other than those listed in the manual. Please note

however that many electrical and mechanical parts in the product have special safety related
characteristics. These characteristics are often not evident from visual inspection. Parts other than
specified by the manufacturer may not have the same safety characteristics as the recommended
replacement parts shown in the Parts List of the Service Manual and 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 re-assembling.

1. Service should be performed by qualified personnel only.

2. This equipment has been designed and manufactured to meet international safety standards.

3. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.

4. Repairs must be made in accordance with the relevant safety standards.

5. It is essential that safety critical components are replaced by approved parts.

6. If mains voltage selector is provided, check setting for local voltage.

!

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.

1-3

XL-PM20SL

Preventing static electricity

1. Grounding to prevent damage by 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.

2. About the earth processing for the destruction prevention by static electricity

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

2-1 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.

2-2 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 plate

3. Handling the optical pickup

In order to maintain quality during transport and before installation, both sides of the laser diode on the

1.
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

2.
source can easily destroy the laser diode.

4. 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.

Remove solder of the short land on the flexible wire 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 wire carefully as it may break when subjected to strong force.

4.

It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

5. Attention when traverse unit is decomposed

*Please refer to "Disassembly method".

Main board Flexible wire

Apply solder to the short land before the flexible wire is disconnected
from the connector on the main board.
(If the flexible wire is disconnected without applying solder, the CD
pickup may be destroyed by static electricity.)
In the assembly, be sure to remove solder from the short land after
connecting the flexible wire.

1-4

Short land

Important for laser products

XL-PM20SL

1.CLASS 1 LASER PRODUCT

2.DANGER : Invisible laser radiation when open and inter

lock failed or defeated. Avoid direct exposure to beam.

3.CAUTION : There are no serviceable parts inside the
Laser Unit. Do not disassemble the Laser Unit. Replace
the complete Laser Unit if it malfunctions.

4.CAUTION : The compact disc player uses invisible
laserradiation and is equipped with safety switches
whichprevent emission of radiation when the drawer is
open and the safety interlocks have failed or are de
feated. It is dangerous to defeat the safety switches.

VARNING : Osynlig laserstrålning är denna del är öppnad

och spårren är urkopplad. Betrakta ej strålen.

VARO : Avattaessa ja suojalukitus ohitettaessa olet

alttiina näkymättömälle lasersäteilylle.Älä katso
säteeseen.

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 herein may result in
hazardous radiation exposure.

CAUTION

!

Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.

ADVARSEL : Usynlig laserstråling ved åbning , når

sikkerhedsafbrydere er ude af funktion. Undgå
udsættelse for stråling.

ADVARSEL : Usynlig laserstråling ved åpning,når

sikkerhetsbryteren er avslott. unngå utsettelse
for stråling.

REPRODUCTION AND POSITION OF LABELS

CLASS 1

LASER PRODUCT

1-5

XL-PM20SL

Disassembly method

Removing the bottom cabinet

(See Figs. 1 to 3.)

From the bottom side of the main body, remove the

1.
six screws A from the bottom cabinet. (See Fig.1.)

Open the battery door, then remove the screw B

2.
from the bottom cabinet. (See Fig.2.)

From the top side of the main body, pay attention to

3.
remove the screw C from the middle cabinet before
next procedure. (See Fig.3.)

Disengage the claws a of the bottom cabinet from

4.
the middle cabinet and then remove the bottom
cabinet.

Bottom cabinet

A

Battery door

A

A

Fig. 1

Bottom cabinet

B

Fig. 2

Removing the main parts

(See Figs. 4 to 10.)

1.

Disconnect the flexible wire from connector CN7 on
the main board. (See Fig.4.)

[Caution]

2.

Remove the HOLD & HBS slide knobs.

3.

Remove the HOLD & HBS board by releasing the
screw D. (See Fig.5.)

Pay attention not damage the flexible
wire during disconnection.

(See Fig.5.)

C

Claw a

HOLD slide knob

D

HBS slide knob

Claw a

Middle cabinet

Fig. 3

Flexible wire

CN7

Main board

Fig. 4

1-6

HOLD & HBS board

Fig. 5

4.

Remove the battery plate "+" and battery plate "-"
from the bottom cabinet. (See Fig.6.)

5.

Remove the CD mechanism assembly together the
main board and HOLD & HBS board from bottom
cabinet.

XL-PM20SL

6.

Disconnect the CD mechanism wire from
connector CN2 on the main board. (See Fig. 7)

7.

Apply solder to short land section a on the flexible
wire. (See Fig.8.)

[Caution] Be sure to apply solder in order to

short land section a on the flexible
wire before removing the flexible
wire from the main board.

(See Fig. 8.)
If the flexible wire is removed without
applying this solder, the CD pickup
may be damaged.

8.

After soldering, disconnect the flexible wire from
connector CN1 on the main board. (See Fig.9.)

[Caution] After re-connecting the flexible

wire, be sure to remove the solder
from short land a.

9.

Final disassembly condition. (See Fig.10.)

[Caution]

No serviceable parts are provided
inside AC adaptor. Do not open it.

Battery plate"+"

Main board

Short land section a

CD mechanism assembly

Battery plate"-"

Fig. 6

Fig. 7

Flexible wire

Fig. 8

Bottom cabinet

CN2

CD mechanism
wire

Main board

Main board

HOLD & HBS board

Flexible wire

CD mechanism assembly

Middle cabinet

Fig. 9

Fig. 10

CN1

Main board

HOLD & HBS board

Bottom cabinet

1-7

XL-PM20SL

Adjustment method

Measuring instructions required for
adjustment

Oscilloscope

1.
Jitter meter

2.

Measurement conditions

Power supply voltage
AC120V/60Hz (C version)
AC230V/50Hz (B/E version)

Electrical adjustment

Perform adjust focus bias adjust only.

Connect an oscilloscope and jitter meter to the test

1.
point RF (Pin 63 of U3 KA9225) and VR (Pin 55 of
U3 KA9225).
Locations of the test points are shown on fig.1.

VR

RF

U3

Main board

(Reverse side)

Load the disc, then keep door switch short (Door

2.
close).

Press the PLAY button.

3.

MICOM auto adjust for an optimum waveform eye

4.
pattern with an amplitude of 1.0 to 1.3V.
The waveform of the eye pattern is shown on fig.2.

Trouble shooting

PROBLEM

No sound

Disc is inserted
but number of
tracks and
playing time are
not displayed.

No ANTI-SHOCK

PAUSE function is ON.
Without press PLAY key one.
VOLUME control is at its minimum position.
CD deck is empty.
Door is open.
Hold key set ON
Disc is inserted upside down.
Disc is dirty.
Disc is scratched.
Disc is seriously warped.
A non-standard disc is inserted.
Moisture has formed inside the CD deck.
ANTI-SHOCK OFF

POSSIBLE CASE

Fig.1

Fig.2

REMEDY

Press PLAY button to resume.
Press PLAY key to start power and play.
Set the VOLUME control to a proper sound level.
Insert a disc and play.
Close the door.
Switch hold key to OFF
Insert disc correctly
Wipe clean with soft cloth
Use a new disc.
Use a new disc.
Use only brand name disc.
Wait about 20 to 30 minutes.
Press ANTI-SHOCK key once to start function.

1-8

Description of major ICs

S3C821AXZZ-TWRA (U1) : Central processing unit

1.Terminal layout

SEG19

SEG18

SEG17

SEG16

SEG15

SEG14

SEG13

SEG12

SEG11

SEG10

SEG9

SEG8

SEG7

SEG6

NC

80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61

SEG5

SEG4

SEG3

SEG2

XL-PM20SL

SEG1

1

NC

2

NC

3

NC

4

NC

5

NC

6

NC

7

MLAT

8

MINT

9

MDOUT

XOUT

NC
NC

RESET

MCK

M DATA

MLT

10
11
12
13
14
15
16
17
18
19
20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

SCOR

SSENSE

K1

DSENSE

AVREF(VDD)

(9225+9288+9276)

K2

BATT

REMO

VDD1(VDD)
VSS1(GND)

XIN(8 MHz)

TEST(GND)

LA4533M (U4) : Audio amplifier

2.Block diagram1.Terminal layout

10

1

6

(POWER SWITCH)

5

(PRE GND)

S3C821A-XX

80-TQFP-1212

SUBQ

SQCK

GND

1

2IN1

3

4IN2

CDMUTE

POWER
SWITCH

AVSS(GND)

P/SW

XRST

FOK

CLOSE

Amp 1

Amp 2

POFF

HOLDSW

MUTE

CIRCUIT

AMUTE

HPMUTE

60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41

CLVX1X2

M/SW

10

(MUTE SWITCH)

9

OUT1

GND

8

(POWER GND)

7

OUT2

SEG0
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
VDD2(VDD)
VSS2(GND)
VLC1
ESP OPT2
ESP OPT1
ESP OPT0
BEEP
OPT2
OPT1(LCD)

OPT0(KICK)
NC

GM71C17403CJ-6 (U8) : DRAM

1.Terminal layout

VSSD3D2
2625242322

12345

VCC

CASOEA9

D1

D0

WE

RAS

21

6

NC

A8A7A6A5A4
1918171615

8

9

101112

A2

A1

A0

A10

14

13

A3

VCC VSS

5REF

BIAS

6

VCC

1-9

XL-PM20SL

S5L9276X01-E0R0 (U5) : Decoder

1.Terminal layout

48

33

49

64

1

2.Block diagram

CD-MP3 Decoder Chip

(CD-ROM Decoder)

cdrUnit

32

17

16

Register

Set

dspUnit

IB

read

Channel

memUnit

(Memory Management Unit)

OB

write

Channel

ssp1611 Core +

CROM0,RAM0,

CROM1,RAM1

OBL
read

Channel

PROM,

OBR
read

Channel

difUnit

(DAC I/F)

Host

Channel

hifUnit

(Host Interface)

ckgUnit

DRAM Bandwidth Estimated

- 1.9M words/sec

DRAM Controller

1M x 4 bits DRAM

3. Pin function

Pin No. Symbol I/O Function

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15

VDD

XI

XO

XOUT

CLK

RESETB
PLL0VDDA
PLL0VSSA
PLL0VBBA

FILTER0
PLL1VDDA
PLL1VSSA
PLL1VBBA

FILTER1

PBYPASS

-

Digital power

I

X'tal oscillator input (16.9344 MHz)

O

X'tal oscillator output

O

Buffered output of XO

I

System clock input

I

System reset active low

-

Analog power for PLL0

-

Analog ground for PLL0

-

Analog ground for PLL0

O

External capacitor port for PLL0

-

Analog power for PLL1

-

Analog ground for PLL1

-

Analog ground for PLL1

O

External capacitor port for PLL1

I

Tied to ground.

Host MCU

1-10

Pin No. Symbol I/O Function

16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

VSS

VDD

ACLKEXT

CDCLK

CDDATA

CDLRCK

CDBCK

CDC2PO

ACLK
BCLK
LRCK

ADAT

EMP

ETYPE

NC

DA10

VSS

VDD

MCUCLK

MDAT

MCK
MLAT
MDO
MINT

SCAN_EN

TEST2
TEST1
TEST0
DDAT0
DDAT1

WEB

RASB

VSS

VDD

DDAT2
DDAT3

CASB

DA08
DA07
DA06
DA05
DA04
DA09
DA00
DA01
DA02
DA03

OEB

VSS

-

Digital ground

-

Digital power

I

External audio clock source (Not connect)

O

Clock output for CD DSP IC

I

Data from CD DSP IC

I

LRCK from CD DSP IC

I

BCK from CD DSP IC

I

C2PO from CD DSP IC

O

Audio clock to DAC clock input

O

BCLK to DAC

O

LRCK to DAC

O

Data to DAC

O

Emphasis ON/OFF (Not connect)

O

Indicates emphasis type (Not connect)

-

No used

O

Address output10 for DRAM

-

Digital ground

-

Digital power

O

Clock output for external MCU (Not connect)

I

Data input pin

I

Micom clock pin

I

Data latch input pin

O

Data from CD-MP3 to MCU

O

Interrupt output to MCU

O

Scan test enable

I

Tied to ground

I

Tied to ground

I

Tied to ground

I/O

Data0 bus for external DRAM

I/O

Data1 bus for external DRAM

O

Write enable for external DRAM

O

Row address for external DRAM

-

Digital ground

-

Digital power

I/O

Data2 bus for external DRAM

I/O

Data3 bus for external DRAM

O

Column address for external DRAM

O

Address output8 for DRAM

O

Address output7 for DRAM

O

Address output6 for DRAM

O

Address output5 for DRAM

O

Address output4 for DRAM

O

Address output9 for DRAM

O

Address output0 for DRAM

O

Address output1 for DRAM

O

Address output2 for DRAM

O

Address output3 for DRAM

O

Output to make data output to "Hi-Z at DRAM"

-

Digital ground

XL-PM20SL

1-11

XL-PM20SL

KA9225 (U3) : RF

1.Terminal layout 2.Block diagram

49

64

48

1

33

16

17

32

EQO

EFMI

DCC1

DCC2

MCP

DCB

GND

FRSH

FSET

FLB

FGD

FDFCT

FSEO

FSI

ATO

TGU

EQI

RFO

RFM

RFM2

TESO

LPC

LPB

EQC

VCC

VREF

PDE

PDF

64

63

62

61

60

59

58

57

56

55

54

53

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

RF AGC &

EQ Control

Focus OK Detect

Defect Detect

Mirror Gen

Focus Servo Loop

-Gain & Phase
Compensation

-Focus Search

-Offset Adjust

-FZC Gen.

Micom Data Interface logic Decoder

Center

Voltage

APC. Laser

Control & LPC

Tracking Servo Loop

- Gain & Phase
Compensation

- Track Jump

- Offset Adjust

- TZC Gen.

Hardware logic

- Auto-Sequencer

- Fast Search

- Febias, Focus Servo,
Tracking Offset ADJ.

- Tracking Balance & Gain
Adjust

- Interruption Detect

- EFM Muting System

Tracking

Error

(RW) I/V

AMP

EFM

Comparator

PDB

PDD

52

51

RF & Focus

Error (CD-RW)

I/V AMP

Sled servo

& Kick Gen.

Spindle

Servo LPF

PDC
50

PDA
49

PD

48

LD

47

LPF2

46

45

LPF1

TEIO

44

TZC

43

ATSC

42

41

TEO

TEM

40

39

SLP

SLO

38

37

SLM

FEO

36

FEM

35

SPO

34

33

SPM

17

18

19

20

21

22

23

VDD

ISTAT

ISTAT1

MCK

MDATA

MLT

XRST

3. Pin function

Pin No. Symbol I/O Function

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15

EQO

EFMI
DCC1
DCC2

MCP
DCB
GND

FRSH

FSET

FLB

FGD

FDFCT

FSEO

FSI

ATO

O

RF equalizer output (Not connect)

I

EFM slice input. (input impedance 47K)

O

Time constant connection output to detect defects

I

Time constant connection input to detect defects

I

CAP connection terminal for mirror hold

I

CAP terminal to limit defect detection

-

RF, servo ground

I

CAP connection terminal for focus search

I

Filter bias for focus, tracking, spindle (Not connect)

I

CAP terminal to make focus loop rising low band

I

Terminal to charge the high frequency gain of the focus loop

I

CAP connection terminal to integrate the focus error

O

Focus error output

I

Focus servo input

O

Shock level detect output (shock: L:state)

24

WDCK

25

CLVI

26

LOCK

27

ASY

28

EFM2

29

EFM

30

SSTOP

31

VSS

32

VDD

1-12

Pin No. Symbol I/O Function

16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

TGU
VDD

I STAT

I STAT 1

MCK

M DATA

MLT

XRST

WDCK

CLVI

LOCK

ASY

EFM2

EFM

SSTOP

VSS
VDD
SPM
SPO
FEM
FEO
SLM

SLO

SLP
TEM
TEO

ATSC

TZC

TEIO
LPF1
LPF2

LD

PD

PDA
PDB
PDC
PDD

PDF
PDE

VREF

VCC
EQC

LPB

LPC

TESO
RFM2

RFM
RFO

EQI

I

Time constant connection to charge the high frequency gain of the tracking loop.

-

Power supply for the servo

O

Internal status output pin (FOK, TRCNT)

O

Internal status output pin

I

Micom clock pin

I

Data input pin

I

Data latch input pin

I

Reset input pin

I

88.2kHz input terminal from DSP

I

Control output input terminal of DSP spindle

I

Sled run away prevention pin (L: sled off and tracking gain up)

I

Auto asymmetry control input terminal

O

Output for EFM pulse integration

O

EFM output terminal for RFO slice (to DSP)

I

PICK UP's maximum lead-in diameter position check pin

-

Digital ground

-

Digital power

I

Spindle amp inverting input pin

O

Spindle amp output pin

I

Focus servo amp inverting input pin

O

Focus servo amp output pin

I

Sled servo inverting input

O

Sled servo output

I

Sled servo non inverting input

I

Tracking servo amp inverting input pin

O

Tracking servo amp output pin

I

Anti-shock input pin

I

Tracking zero crossing input pin

I/O

Tracking error output & tracking servo input pin

I

Tracking error integration input terminal 1 (automatic control)

I

Tracking error integration input terminal 2 (automatic control)

O

APC AMP output pin

I

APC AMP input pin

I

Photo-diode A/C RF I/V amp1 inverting input pin

I

Photo-diode B/D RF I/V amp2 inverting input pin

I

Photo-diode A/C RF I/V amp1 inverting input pin

I

Photo-diode B/D RF I/V amp2 inverting input pin

I

Photo-diode F with tracking (F) I/V amp inverting input pin

I

Photo-diode E with tracking (E) I/V amp inverting input pin

O

(VCC + GND) /2 voltage reference output pin

-

RF part VCC power supply pin

I

AGC_equalize level control terminal and VCA input connection cap terminal

I

Laser power level control resistance terminal (Not connect)

I

Laser power control tracking summing signal integration terminal (Not connect)

O

Tracking error summing signal (Not connect)

I

RF summing amp 2x filter ON/OFF

I

RF summing amp inverting input terminal

O

RF summing amp output terminal

I

RFO dc control input terminal (use by MIROR, FOK, AGC&EQ terminals)

XL-PM20SL

1-13

XL-PM20SL

S5L9288D01-TORO (U2) : DSP

1.Terminal layout 2.Block diagram

4160

4061

VCO1LP
VCO2LP

EFMI

LOCK, SMEF

80

1

21

20

SMON, SMDP
SMDS, WDCK

TESTV

WFCK, RFCK

C4M

XIN

I STAT

MLT, MDAT

MCK, MUTE

DPLL

CLV

Servo

Timing

Generator

Micom

Interface

SOSI

SQCK

SQDT

SBCK

SBDT

Subcode

Out

EFM

Demodulator

ECC

16K

SRAM

Address

Generator

C2PO

Interpolator

Encoder Decoder

DATX

Digital

Out

I/O

Interface

DRAM

Interface

Digital

Filter

1-bit
DAC

PWM

LPF

JITB

3. Pin function

Pin No. Symbol I/O Function

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

VDDAPLL

VSSAPLL
VBBAPLL

VCO1LF

VCO2LF
VSSDPLL
VDDDPLL

PBCK

VDDD1

XIN

XOUT

VSSD1

TEST0

EFMI
LOCK
SMEF

SMON

SMDP
SMSD

WDCK

VDD

TESTV

WFCK

LKFS

XRST

MLT

M DATA

MCK

I STAT

-

Analog power for DPLL

-

Analog ground for DPLL

-

Analog bulk bias ground for DPLL

O

Pump out for VCO1

O

Pump out for VCO2

-

Digital ground separated bulk bias for DPLL

-

Digital power separated bulk bias for DPLL

-

VCO 1/2 clock output (4.3218 MHz) (Not connect)

-

Digital power

I

X'tal oscillator input (16.9344 MHz)

O

X'tal oscillator output (Not connect)

-

Digital ground

I

Test input

I

EFM signal input

O

CLV servo locking status output

O

LPF time constant control of the spindle servo error signal

O

ON/OFF control signal for spindle servo

O

Phase control output for spindle motor drive

O

Speed control output for spindle motor drive

O

Word clock output (X1: 88.2kHz, X2: 176.4kHz)

-

Digital power

I

Various test input

O

Write base clock output (Not connect)

O

The lock status output of frame sync (Not connect)

I

System reset at "L"

I

Latch signal input from micom

I

Serial data input from micom

I

Serial data receiving clock input from micom

O

The internal status output to micom

A9 - A0
D3 - D0

CAS1,CAS0

RAS, WE

LCHOUT
RCHOUT

VHALE
VREF

1-14

Pin No. Symbol I/O Function

30
31
32
33
34
35
36
37
38
39
40

41 - 43

44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

SOSI

SQCK

SQDT

LCHOUT

VDDADAC

VHALF

VREF

VSSADAC

RCHOUT

VDDDDAC

VSS

TEST1 - 3

MUTE

SBCK
SBDT

C4M

VSSD2

VDD

DATX

JITB
C2PO
RFCK

MINT0
MINT1
MINT2
MINT3
MINT4
MINT5

VSS

VDD

D0
D1

WE

RAS

D2
D3

CAS0

CAS1(A10)

A8
A7
A6
A5
A4
A9
A0
A1
A2
A3

VSS

I/O

Subcode sync signal (S0+S1) output

I

Subcode-Q data transferring bit clock input

O

Subcode-Q data serial output

O

Left-channel audio output through DAC

-

Analog power for DAC

O

Reference voltage output for bypass

O

Reference voltage output for bypass

-

Analog ground for DAC

O

Right-channel audio output through DAC

-

Digital power for DAC

-

Digital ground for DAC

I

Test input

I

System mute at "H"

I

Subcode data transferring bit clock

I/O

Subcode data serial output (Not connect)

O

4.2336 MHz clock output (Not connect)

-

Digital ground

-

Digital power

O

Digital audio data output (Not connect)

I/O

Internal SRAM jitter margin status output (Not connect)

O

C2 pointer output

I/O

Read base clock output

I/O

Monitoring signal output

I/O

Monitoring signal output

I/O

Monitoring signal output

I/O

Monitoring signal output

I/O

Monitoring signal output

I/O

Monitoring signal output

-

Digital ground

-

Digital power

I/O

DRAM data input/output0

I/O

DRAM data input/output1

O

DRAM write enable output (active low)

O

DRAM row address selection output (active low)

I/O

DRAM data input/output2

I/O

DRAM data input/output3

O

DRAM column address selection output 0 (active low)

O

DRAM column address selection output 1 (active low)

O

DRAM address output8

O

DRAM address output7

O

DRAM address output6

O

DRAM address output5

O

DRAM address output4

O

DRAM address output9

O

DRAM address output0

O

DRAM address output1

O

DRAM address output2

O

DRAM address output3

-

Digital ground

XL-PM20SL

1-15

XL-PM20SL

BD7920KS (U6) : Servo driver

1.Terminal layout

2942

43

56

1

2.Block diagram

43

SPRT

44

SOFT

45

DC IN

REGB

46

REGO

47

48

MIDOUT

28

15

14

DPG3

DPG2

CH1+

CH1-

CH2+

CH2-

PVCC

PVCC

CH3+

CH3-

42 41 40 39 38 37 36 35 34 33 32 31 30 29

REG/SW

PRE-DR PRE-DR

VSYS

Detector

PRE-DR PRE-DR

CH4+

+

-

+

-

+

-

CH4-

DPG1

DCT

28

N.C

FIL4

27

FIL3

26

FIL2

25

24

FIL1

23

VREF

49

DSW

50

PG1

51

PG2

52

USW

53

VSYS

54

SSW

55

VSUB

56

LG

3. Pin function

VSUB

-0.3V

PREG1

TSD

SYSTEM

ON

WP

PREG2

UP/DOWN

CONVERTER

VG

CONV

1 2 3 4 5 6 7 8 9 10 11 12 13 14

VG

+

-

-

SUB

CONV

+

-

EI

EO

+

-

SUBNF

SUBEO

OSC

RSTIN

PCT

­+

+

-

OSC

Internal 1/2

Frequency

SYSTEM

OFF

RSTOUT

Pin No. Symbol Function

1
2
3
4
5
6
7

VG

EI

EO

SUBNF

SUBEO

RSTIN

PCT

Power MOS driving circuit power input pin
Voltage UP/DOWN DC/DC converter error amplifier input pin
Voltage UP/DOWN DC/DC converter error amplifier output pin
Microcomputer power error amplifier input pin
Microcomputer power error amplifier output pin (Not connect)
Reset power setting input pin
Power triangular wave output pin

MUTE1

OFF

MUTE34

MUTE1

MUTE34

22

21

20

19

18

17

16

15

VDD

DPREG

CH4

CH3

CH2

CH1

CLK

MIDFIL

1-16

Pin No. Symbol Function

8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56

PREG1
PREG2

WP

RSTOUT

OFF

MUTE1

MUTE34

MIDFIL

CLK
CH1
CH2
CH3
CH4

DPREG

VCC

VREF

FIL1
FIL2
FIL3
FIL4
N.C.

DCT

DPG1

CH4-

CH4+

CH3­CH3+
PVCC
PVCC

CH2­CH2+

CH1­CH1+
DPG2
DPG3
SPRT
SOFT

DC_IN
REGB

MIDOUT

REGO

DSW

PG1
PG2

USW
VSYS

SSW

VSUB

LG

Power control pre-ground
Power control pre-ground
DC/DC converter start pin
Reset detection output pin
DC/DC converter OFF pin
CH1 mute pin
CH34 mute pin
ESP power filter pin
External clock input pin
CH1 input pin
CH2 input pin
CH3 input pin
CH4 input pin
Driver pre-ground
Pre power input pin
Reference voltage input pin
CH1 filter pin
CH2 filter pin
CH3 filter pin
CH4 filter pin
Not connect
Driver triangular wave output pin
Driver POW ground
CH4 negative output pin
CH4 positive output pin
CH3 negative output pin
CH3 positive output pin
Power system power supply pin
Power system power supply pin
CH2 negative output pin
CH2 positive output pin
CH1 negative output pin
CH1 positive output pin
Driver POW ground
Driver POW ground
Power-off time constant setting pin
Soft start setting pin
AC adapter power supply input pin
Regulator Tr. base pin
ESP power supply output pin (Not connect)
Primary side power supply input pin
Voltage UP/DOWN DC/DC converter coil driving pin 1
Power control POW ground
Power control POW ground
Voltage UP/DOWN DC/DC converter coil driving pin 2
System power supply output pin
Microcomputer DC/DC converter coil driving pin (Not connect)
Microcomputer power supply output pin (Not connect)
VG voltage UP coil driving pin

XL-PM20SL

1-17

XL-PM20SL

VICTOR COMPANY OF JAPAN, LIMITED

AUDIO & COMMUNICATION BUSINESS DIVISION
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,maebashi-city,371-8543,Japan

No.21133

200208