JVC XL-PM30SL Service Manual

SERVICE MANUAL
PORTABLE CD PLAYER
XL-PM30SL
Area suffix
C -------------------------- Canada E ----------- Continental Europe UJ -------------------- U.S.Military
XL-PM30SL
Contents
Safety precautions Preventing static electricity Important for laser products Disassembly method
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
1-2 1-3 1-4 1-5
Adjustment method Trouble shooting Description of major ICs
1-7 1-7 1-8~12
No.21165 Oct. 2002
XL-PM30SL
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-PM30SL

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.
Short land
1-3
XL-PM30SL

Important for laser products

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
1-4
CLASS 1
LASER PRODUCT
XL-PM30SL

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 CN5 on the main board. (See Fig.4.)
[Caution]
2.
Remove the HOLD & RESUME slide knobs.
3.
Remove the HOLD & RESUME board by removing 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
Fig. 3
Fig. 4
Claw a
Middle cabinet
Flexible wire
CN5
Main board
RESUME slide knob
HOLD & RESUME board
Fig. 5
1-5
XL-PM30SL
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 & RESUME board from bottom cabinet.
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"+"
CN2
Main board
Short land section a
CD mechanism assembly
Bottom cabinet
Battery plate"-"
Fig. 6
CD mechanism wire
Main board
Fig. 7
Flexible wire
Fig. 8
Main board
1-6
HOLD & RESUME board
Flexible wire
CD mechanism assembly
Middle cabinet
CN1
Fig. 9
Main board
HOLD & RESUME board
Bottom cabinet
Fig. 10

Adjustment method

Measuring instructions required for adjustment
Oscilloscope
1. Jitter meter
2.
XL-PM30SL
VC
Measurement conditions
Power supply voltage AC120V/60Hz (J/C/UJ version) AC230V/50Hz (E version)
Electrical adjustment
Perform adjust focus bias adjust only.
Connect an oscilloscope and jitter meter to the test
1. point RF (Pin 2 of IC2 S1L9226) and VC (Pin 47 of IC2 S1L9226). Locations of the test points are shown on fig.1.
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 0.5 ~ 0.8V. The waveform of the eye pattern is shown on fig.2.
RF
IC2
Main board
(Reverse side)
Fig.1

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.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.
1-7
XL-PM30SL

Description of major ICs

S5L9290 (IC1) : Digital signal processor
1. Terminal layout
BCKO
36 35
BCKI
37
LRCKI
38
SADTI
39
VSSD_DAC
VDDD_DAC
RCHOUT
VSSA_DAC
VDDA_DAC
LCHOUT
VDDA_PLL
VREF
VHALF
40
41
42
43
44
45
46
47
48
LRCKO
SADT0
34 33
DATX
C2PO
32 31
JITB
SBCK
30 29
VDDD3_5V
VSSD2_3v
28 27
VDDD2_3V
MUTE
26 25
SQDT
24
23
22
21
20
19
18
17
16
15
14
13
SQCK
S0S1
I STAT
MCK
MDT
MLT
RESET
CK4M
LKFS
TESTV
WDCK
SMDS
34
12
VCO1LF
VSSA_PLL
VSSD_PLL
VDDD_PLL
S1L9226 (IC2) : Servo signal processor
1. Terminal layout
ATSC
LPFT
TEIO
TZC/SSTOP
34 33
LD
PD
PDAC
PDBD
PDF
PDE
DCB
MCP
DCCI
DCCO
VREF
EQC
36 35
37
38
39
40
41
42
43
44
45
46
47
48
56
XIN
VDDD1_5V
GND
FEO
32 31
78
XOUT
FEM
30 29
910
EFM1
VSSD1_5V
TEO
TEM
28 27
11 12
LOCK
SLP
26 25
SMEF
SLO
SMDP
SLM
24
23
22
21
20
19
18
17
16
15
14
13
SPO
SPM
ASY
EFM
LOCK
WDCK
CLVI
RESET
MLT
MDATA
MCK
I STAT
1-8
12
RFO
RFM
34
EQI
EQO
56
VCC
EFMI
78
FSET
FRSH
910
FLB
FGD
11 12
FSI
TGU
LA4533M (IC3) : Audio amplifier
XL-PM30SL
2. Block diagram1. Terminal layout
10
1
6
5
1MX16Y3VTW (IC4) : SDRAM
1. Terminal layout
VSS
DQ15
DQ14
VSSQ
DQ13
50494847464544434241403938373635343332313029282726
123456789
DQ0
DQ1
VDD
DQ2
VSSQ
DQ12
VDDQ
DQ3
VDDQ
(PRE GND)
DQ9
DQ8
DQ6
DQ7
P/SW
GND
VDDQ
VDDQ
(POWER SWITCH)
DQ11
DQ10
VSSQ
101112131415161718192021222324
DQ4
DQ5
VSSQ
1
2IN1
3
4IN2
5REF
N.C/RFU
UDQM
CLK
WE#
CAS#
LDQM
POWER
SWITCH
BIAS
CKE
N.CA9A8A7A6A5A4
BA
CS#
RAS#
Amp 1
Amp 2
A0A1A2
A10/AP
MUTE
CIRCUIT
A3
10
9
8
7
6
VSS
25
VDD
M/SW (MUTE SWITCH)
OUT1
GND (POWER GND)
OUT2
VCC
TMD2201 (IC6) : Decoder
1. Terminal layout
MADDR#
SRMCLK
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
1
MCS#
2
MWR#
3
MRD#
DECINT
PCMCS#
DEMAND
RESET#
VSS0(INT)
VDD0(INT)
AVDD(PLL)
AVSS(PLL)
CP(PLL)
CZ(PLL)
CKE
UDQM
TEST0 TEST1
TEST2 ADDR8 ADDR7
4 5 6 7 8
9 10 11 12 13 14 15 16 17 18 19 20
M DATA 7
M DATA 6
M DATA 5
M DATA 4
M DATA 3
M DATA 2
M DATA 1
M DATA 0
VSS1(PAD)
VDD1(PAD)
XOUT
XIN
LRCKI
BCKI
A DATA I
C2PO
FSYNC
MULCLK
MULDATA
60 59
SQCK
58
S0S1 SQDT
57
WFCK
56 55
DEEMPHO XWDCK
54
JITTI
53
OBCKO
52 51
S3C825A
VSS1(INT) VDD1(INT)
50
A DATA O
49
BCKO
48
LRCKO
47
ADDR12/BA0
46
ADDR9
45
CAS#
44
DB4
43 42
DB5
41
DB6
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
DB1
DB3
DB2
DB0
LDQM
ADDR6
ADDR5
ADDR4
ADDR3
ADDR2
ADDR1
ADDR0
ADDR10
VDD0(PAD)
VSS0(PAD)
RAS#
ADDR11
DRW#
DB7
BA1
1-9
XL-PM30SL
BD7920KS (IC5) : Servo driver
1. Terminal layout
2942
43
56
2. Block diagram
43
SPRT
44
SOFT
45
DC_IN
46
REGB
REGO
47
48
MIDOUT
28
15
1
DPG3
DPG2
42 41 40 39 38 37 36 35 34 33 32 31 30 29
REG/SW
14
CH1+
CH1-
PRE-DR PRE-DR
VSYS
Detector
CH2+
CH2-
PVCC
PVCC
CH3+
CH3-
PRE-DR PRE-DR
CH4+
+
-
+
-
+
-
CH4-
DPG1
DCT
28
N.C.
FIL4
27
FIL3
26
FIL2
25
24
FIL1
23
VREF
49
DSW
PG1
PG2
USW
VSYS
SSW
VSUB
LG
50
51
52
53
54
55
56
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
­+
VSUB
-0.3V
PREG1
TSD
SYSTEM
ON
PREG2
Internal 1/2
WP
RSTOUT
3. Pin function 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
+
-
OSC
Frequency
SYSTEM
OFF
MUTE1
OFF
MUTE34
MUTE1
MUTE34
22
21
20
19
18
17
16
15
VCC
DPREG
CH4
CH3
CH2
CH1
CLK
MIDFIL
1-10
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+
CH3-
CH3+ PVCC PVCC
CH2-
CH2+
CH1-
CH1+ 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-PM30SL
1-11
XL-PM30SL
S3C825A (IC8) : Central processing unit
1. Terminal layout
LCD-RS
LCDSDATA/LCD-EN
LCDDATA0/MD0
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
LCD-SCK
LCD-CSB
BACK-LIGHT
AC-IN
RESUME SWNCOPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
LCDDATA1/MD1 LCDDATA2/MD2 LCDDATA3/MD3 LCDDATA4/MD4 LCDDATA5/MD5 LCDDATA6/MD6 LCDDATA7/MD7
MADRB
MCS VDD1 VSS1
XOUT
XIN(8MHz)
TEST(GND)
XTIN
XTOUT
RESET#
MWE/MCK
MRD/MDATA
DINT
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 30 31 32 33 34 35 36 37 38 39 40
K0
SCOR
MLT
SENSE
K1
AVREF
REMOTE
BATT
AVSS
S3C825A
SUBQ
SQCK
XRST
CDMUTE
LIMIT SW
HOLD SW
OFF
AMUTE
HPMUTE
CLVX1/X2
OPTION
60 59 58 57 56 55 54 53 52
VDD2
51
VSS2
50
VLC1
49
STEREO
48
CD
47
DA
46
CK
45
CE
44
EEPROM DATA
43
EEPROM CLK
42 41
FUNC SW
BR24C02F (IC9) : EPROM
1. Block diagram
PRE
1
E1
2
E2
3
VSS
4
1-12
2048 bit EEPROM array
7bit 8bit
Address decoder
7bit
Slave/word
address register
START STOP
Control circuit
High-voltage
generator
Power supply
voltage detector
ACK
Data
register
8
7
6
5
VCC
MODE
SCK
SDK
< MEMO >
XL-PM30SL
1-13
XL-PM30SL
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.21165
200210
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