Hitachi DVP-543-U Service manual
SERVICE MANUAL
TK No. 0422E
DV-P543U
DO NOT RESELL OR DIVERT IMPROPERLY.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
DVD PLAYER
2004 Digital Media Division, TokaiSeptember
CONTENTS
1 CAUTIONS FOR SAFETY IN PERFORMING
REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
1-1 LASER BEAM SAFETY PRECAUTIONS . . . . . . . . 1-1
1-2 IMPORTANT SAFETY PRECAUTIONS . . . . . . . . . 1-2
1-2-1 Product Safety Notice . . . . . . . . . . . . . . . . . . . . . 1-2
1-2-2 Precautions during Servicing . . . . . . . . . . . . . . . 1-2
1-2-3 Safety Check after Servicing. . . . . . . . . . . . . . . . 1-3
1-3 STANDARD NOTES FOR SERVICING . . . . . . . . . . 1-4
1-3-1 Circuit Board Indications . . . . . . . . . . . . . . . . . . . 1-4
1-3-2 Instructions for Connectors . . . . . . . . . . . . . . . . . 1-4
1-3-3 Pb (Lead) Free Solder. . . . . . . . . . . . . . . . . . . . . 1-4
1-3-4 Instructions for Handling Semi-conductors . . . . . 1-4
2 GENERAL INFORMATION . . . . . . . . . . . . . . . . .2-1
2-1 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 COMPARISON OF MODELS. . . . . . . . . . . . . . . . . . 2-2
2-3 COMPARISON OF MAIN CONTROL ICS. . . . . . . . 2-4
2-4 LIST OF ABBREVIATIONS AND TERMS
FOR DVD PLAYER . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2-5 OPERATING CONTROLS AND FUNCTIONS. . . . . 2-6
6 APPENDIX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6-1 SYSTEM CONTROL TIMING CHARTS . . . . . . . . . .6-1
6-2 IC PIN FUNCTION DESCRIPTIONS. . . . . . . . . . . . .6-2
6-3 LEAD IDENTIFICATIONS . . . . . . . . . . . . . . . . . . . . .6-3
S SCHEMATIC, WIRING DIAGRAMS
S-1 Schematic Diagrams/CBA’s and Test Points . . . . . . S-1
S-2 Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-3
S-3 DVD Main 1/3 Schematic Diagram . . . . . . . . . . . . . S-4
S-4 DVD Main 2/3 Schematic Diagram . . . . . . . . . . . . . S-5
S-5 DVD Main 3/3 Schematic Diagram . . . . . . . . . . . . . S-7
S-6 AV 1/3 Schematic Diagram . . . . . . . . . . . . . . . . . . . S-8
S-7 AV 2/3 Schematic Diagram . . . . . . . . . . . . . . . . . . . S-9
S-8 AV 3/3 & Function Schematic Diagram . . . . . . . . . S-10
S-9 Waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-11
C CIRCUIT BOARD DIAGRAMS
C-1 AV CBA Top View . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
C-2 AV CBA Bottom View. . . . . . . . . . . . . . . . . . . . . . . . C-2
C-3 Function CBA Top/Bottom View . . . . . . . . . . . . . . . C-3
3 MAINTENANCE AND INSPECTION. . . . . . . . . .3-1
3-1 TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . 3-1
3-2 FIRMWARE RENEWAL MODE . . . . . . . . . . . . . . . . 3-7
3-2-1 How to Update the Firmware Version . . . . . . . . . 3-7
3-2-2 How to Verify the Firmware Version . . . . . . . . . . 3-8
4 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
4-1 CABINET DISASSEMBLY INSTRUCTIONS . . . . . . 4-1
4-1-1 Disassembly Flowchart . . . . . . . . . . . . . . . . . . . . 4-1
4-1-2 Disassembly Method. . . . . . . . . . . . . . . . . . . . . . 4-1
5 EXPLODED VIEW AND PARTS LIST. . . . . . . . .5-1
5-1 EXPLODED VIEW. . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-2 REPLACEMENT PARTS LIST. . . . . . . . . . . . . . . . . 5-2
5-2-1 Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . 5-2
5-2-2 Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . 5-3
B BLOCK DIAGRAMS
B-1 System Control/Servo Block Diagram. . . . . . . . . . . B-1
B-2 Digital Signal Process Block Diagram . . . . . . . . . . . B-2
B-3 Video/Audio Block Diagram. . . . . . . . . . . . . . . . . . . B-3
B-4 Power Supply Block Diagram. . . . . . . . . . . . . . . . . . B-4
1
CAUTION FOR SAFETY IN PERFORMING REPAIR
1-1 LASER BEAM SAFETY PRECAUTIONS
This DVD player uses a pickup that emits a laser beam.
Do not look directly at the l aser beam coming
from the pickup or allo w it t o str ike agai nst your
skin.
The laser beam is emitted from the locatio n shown in the figure. When ch ecking the laser d iode, be sure to keep
your eyes at least 30cm away from the pickup lens when the diode is tur ned on. Do not loo k directly at the laser
beam.
Caution: Use of controls an d adjustments, or doing pr ocedures other than th ose specified here in, may result in
hazardous radiation exposure.
Drive Mecha Assembly
Laser Beam Radiation
Laser Pickup
Turntable
CAUTION
LASER RADIATION
WHEN OPEN. DO NOT
STARE INTO BEAM.
Location: Top of DVD mechanism.
1-1
1-2 IMPORTANT SAFETY PRECAUTIONS
1-2-1 Product Safety Notice
Some electrical and mechanical parts have special
safety-related characteristics which are often not evident from visual inspection, nor can the protection they
give necessarily be obtained by replacing them with
components rated for higher voltage, wattage, etc.
Parts that have special safety characteristics are identified by a # on schematics and in parts lists. Use of a
substitute replacement that does not have the same
safety characteristics as the recommended replacement par t might create shock, fire, and/or other h azards. The Product’s Safety is under review
continuously and new instructions are issued whenever appropriate. Prior to shipment from the factory,
our products are carefully inspected to confirm with
the recognized product safety and electrical codes of
the countries in which they are to be sold. However, in
order to maintain such compli ance, it is equall y impor tant to implement the following precautions when a set
is being serviced.
1-2-2 Precautions during Servicing
A. Parts identified by the # symbol are critical for
safety. Replace only with part number specified.
B. In addition to safety, other parts and assemblies
are specified for conformance with regulations
applying to spurious radiation. These must also be
replaced only with specified re pla ce men ts.
Examples: RF converters, RF cables, noise blocking capacitors, and noise blocking filters, etc.
C. Use specified internal wiring. Note especially:
1)Wires covered with PVC tubing
2)Double insulated wi res
3)High voltage leads
D. Use specified insulating materials for hazardous
live parts. Note especially:
1)Insulation tape
2)PVC tubing
3)Spacers
4)Insulators for transistors
E. When replacing AC primary side components
(transformers, power cord, etc.), wrap ends of
wires securely about the terminals before soldering.
F. Obser ve that the wires do not co ntact hea t produc-
ing parts (heats inks, oxide metal fil m resis tors, fusible resistors, etc.).
G. Check that replaced wires do not contact sharp
edges or pointed parts.
H. W hen a power cord has been repl aced, check that
5 - 6 kg of force in any direction will not loosen it.
I. Also check areas surrounding repair ed loc at ion s.
J. Be careful that foreign objects (screws, solder
droplets, etc.) do not remain inside the set.
K. Crimp type wire connector
The power transformer uses cri mp type con nector s
which connect the power cord and the primary side
of the transformer. When replacing the transformer,
follow these steps carefully and precisely to prevent
shock hazards.
Replacement procedure
1)Remove the old connector by cutting the wires at a
point close to the connector.
Important: Do not re-use a connector. (Discard it.)
2)Strip about 15 mm of the insulation from the ends
of the wires. If the wires are stranded, twist the
strands to avoid frayed conductors.
3)Align the lengths of the wires to be connected.
Insert the wires fully into the connector.
4)Use a crimping tool to crimp the metal sleeve at its
center. Be sure to crimp fully to t he complete closure of the tool.
L. When connecting or disconnecting the internal
connectors, first, disc onnect the AC plug from the
AC outlet.
1-2
1-2-3 Safety Check after Servicing
Examine the area surrounding the repaired location for
damage or deteri oration. Observe that screws, par ts,
and wires have been returned to their original positions. Afterwards, do the following tests and confirm
the specified values to verify compliance with safety
standards.
1. Clearance Distance
When replacing primary circuit components, confirm
specified clearanc e distance (d ) and (d’) betwee n soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1)
Table 1 : Ratings for selected area
AC Line Voltage Clearance Distance (d) (d’)
Chassis or Secondary Conductor
Primary Circuit Terminals
dd'
120 V
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
2. Leakage Current Test
Confirm the specified (or lower) leakage current
between B (earth ground, power cord plug prongs)
and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and
output terminals, microphone jacks, earphone jacks,
etc.) is lower than or equal to the specified value in the
table below.
Measuring Method (Power ON) :
Insert load Z between B (earth ground, power cord
plug prongs) and exposed accessible parts. Use an
AC voltmeter to measure across the ter minals of load
Z. See Fig. 2 and the following table.
Table 2: Leakage current ratings for selected areas
AC Line Voltage Load Z Leakage Current (i) Earth Ground (B) to:
120 V
≥ 3.2mm (0.126 inches)
0.15µF CAP. & 1.5kΩ RES.
Connected in parallel
Exposed Accessible Part
Z
1.5k
i≤0.5mA Peak Exposed accessible parts
0.15 F
Earth Ground
B
Power Cord Plug Prongs
AC Voltmeter
(High Impedance)
Fig. 1
Fig. 2
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
1-3
1-3 STANDARD NOTES FOR SERVICING
1-3-1 Circuit Board Indications
a. The output pin of the 3 pin Regulator ICs is indi-
cated as shown.
Top View
Out
b. For other ICs, pin 1 and every fifth pin are indicated
as shown.
Pin 1
c. The 1st pin of every male connector is i ndi ca ted a s
shown.
Input
In
Bottom View
5
10
1-3-4 Instructions for Handling
Semi-conductors
Electrostatic breakdown of the semi-conductors may
occur due to a potential di fference caused by electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a groun ding band (1M Ω) that is properly grounded to re move any static electr ici ty that may
be charged on the body.
2. Ground for Workbench
(1) Be sure to place a conductive sheet or copper plate
with proper grounding (1MΩ) on the workbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on
clothing will not escape thr ough the body grounding band, be careful t o avoid contacting semi-conductors with your clothing.
<Incorrect>
Pin 1
1-3-2 Instructions for Connectors
1. When you connect o r disc onnec t the FFC (F lexible
Foil Connector) cable, be sure to first disconnect
the AC cord.
2. FFC (Flexible Foil Connector) cable should be
inserted parallel into the connector , not at an angle.
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
<Correct>
CBA
Grounding Band
1MΩ
CBA
1-3-3 Pb (Lead) Free Solder
When soldering, be sure to use the Pb free solder.
1MΩ
Conductive Sheet or
Copper Plate
1-4
GENERAL INFORMATION2
2-1 SPECIFICATIONS
ITEM DESCRIPTION
Output signal format NTSC color
Video output impedance 75 Ω
Video output level 1.0 V P-P
Audio output level 2.0 Vrms
Video S/N ratio 60 dB or more
DVD section
Terminal
Others
Disc used DVD video disc, Music CD disc
DVD (linear audio)
Audio frequency
characteristic
Signal/Noise (S/N) ratio CD: 70 dB (JEITA)
Dynamic range DVD (linear audio): 70 dB, CD: 70 dB (JEITA )
Total distortion ratio DVD: 0.004%, CD: 0.0045%
Video output PIN JACK
Audio output PIN JACK
Component video output PIN JACK
S Video output MINI DIN 4PIN JACK (75 Ω)
Coaxial digital audio output PIN JACK
Power supply 120 V AC +/- 10%, 60 Hz +/- 0.5%
Power consumption 10 W (Standby: 0.8 W)
Temperature range for
operation
Dimensions 435(W) mm x 51(H) mm x 211(D) mm
Weight 1.3 kg
20 Hz - 22 kHz (48 kHz sampling frequency)
20 Hz - 44 kHz (96 kHz sampling frequency)
Music CD
20 Hz - 20 kHz (JEITA)
5 °C - 40 °C
2-1
2-2 COMPARISON OF MODELS
O: Yes, ---: No, : Same as on left
ITEM
Dimensional 435(W) x 50(H) x 211(D) mm 435(W) x 55(H) x 211(D) mm
Hot Stamp ---
Ultra Vision Badge ---
APPEARANCE
Drive Speed 1x
Laser 2
DVD/VCD/SVCD/CD-DA O / --- / --- / O
CD-R/CD-RW/DVD-R (Video Format) O / O / O
DVD-RAM/DVD-RW --- / O (Video Mode) --- / --MP3/WMA O / ---
GENERAL
OSD languages 3 (English, French, Spanish)
Jog Shuttle on Front --Headphone Jack / Volume --- / --PAL Disc NTSC Out --Video Out Mode NTSC/PAL/PAL60 O / --- / --S-Video / Component / Composite O / O / O
Video D/A Converter 10bit / 54MHz
VIDEO
Black Level Select O
Picture Control --Progressive Out O
Audio D/A Converter 192kHz / 24bit
Digital Audio Out Optical / Coaxial --- / O
Dolby Digital 5.1 ch Decode --DTS Digital Out --Virtual Surround O
AUDIO
Dynamic Range Compression (Dolby
Digital)
DVD Audio --Search Speed
Slow Speed 1/16, 1/8, 1/2 (FORWARD/REWIND)
IP Search (Smooth 2x Play) O
1.5x Play with Audio ---
TRICK PLAY
Step Forward / Reverse O / --Still Picture Select (Frame/Field) Frame / Field / Auto Auto Only
2 to 100 (FORWARD/REWIND)
(DVD: 2, 8, 50, 100/CD: 16)
DV-P543U DV-P533U
O
2-2
ITEM
Disc Navigation O --DVD Zoom x2 / x4 / x16 O / O / --Program and Random Play of DVD /
VCD
A-B Repeat O
Repeat O
Resume O O (can not effect after Power off)
FEATURES
Closed Caption for NTSC DVD O
Front Panel Display Dimmer O
Screen Saver O
Auto Power Off O (always on) O
Jog Shuttle on Remote Controller ---
REMOTE
TV Control ---
DV-P543U DV-P533U
---
CONTROLLER
2-3
2-3 COMPARISON OF MAIN CONTROL ICS
---: No, : Same as on left
ITEM DV-P543U DV-P533U
SW NC7SB3157P6X / SN74LVC1G3157DCKR
(IC201)
OP AMP LM324PWR / LM324PT (IC202) KIA324F-EL (IC202)
SERVO DRIVE SA5694 / FAN8024CDTF / BA5954FP-E2 /
BA5888FP-E2 (IC301)
RESET PST3229NR (IC461) PST9127NR / BMR-110527 (IC461)
BMR-110529 (IC462) --MICRO CONTROLLER MN35202 (IC101) MN35102 (IC101)
SDRAM K4S641632H-UC75 (IC503) K4S643232F-TC60 / HY57V643220CT-
FLASH ROM MBM29LB160T / BM90TN-K /
MX29LV160ABTC-90G (IC103)
LATCH --- 74LVX573MTCX / TC74LVX573FT(EL)
CLOCK GENERATOR --- BU2363FV-E2 (IC451)
AUDIO D/A CONVERTER PCM1755DBQR (IC601) PCM1751DBQR (IC601)
ERROR VOLTAGE DET EL817B / EL817C /
LTV-817B-F / LTV-817C-F /
PS2561A-1(W) / PS2561A-1(Q) (IC1001)
1.2V REG PQ070XZ5MZP (IC1002) PQ070XF01SZ (IC1002)
SHUNT REGULATOR KIA431-AT / FAN431AZXA (IC1006) KIA431-AT (IC1006)
AMP KIA4558P / NJM4558D / RC4580I P (IC12 01)
VIDEO DRIVER MM1637XVBE (IC1402) MM1622XJBE (IC1402)
MM1636XWRE (IC1403) --FRONT PANEL CONTROL PT6313-S-TP / SC16313 (IC2001) PT6313-S-TP (IC2001)
NC7SB3157P6X (IC201)
SA5694 / BA5954FP-E2 (IC301)
(7,55) (IC102)
MBM29LV160BE90TN-K /
MBM29LV160B90PFTNSFK /
HY29LV160BT-90 / MX29LV160BTC-90 /
M29W160DB70N6 (IC103)
(IC104, IC105)
LTV-817B-F / LTV-817C-F (IC1001)
2-4
2-4
LIST OF ABBREVIATIONS AND TERMS FOR DVD PLAYER
Index Abbreviation/Term Explanation
A AC3 See Dolby AC3.
C CD-R One type of DVD standard disc, to which writing once is possible (recordable type)
CD-RW One type of CD standard disc, to which writing up to 1000 times is possible
Component video
output terminals
D Dolby AC3 Audio coding format developed by Dolby Laboratories in U.S, also simply referred to as AC3
D terminal This terminal, specified by EIAJ (currently JEITA), can automatically switch "digital hi-vision"
DTS D igital T heater Syst em: Sound s ystem as for movie theaters dev elop ed by U S Digit al Theater
DVD Digital Versatile Disc. A huge amount of digital data for video (movie) and audio can be
DVD-Audio One type of DVD standard disc, on which high-quality audio can be recorded
DVD-R One type of DVD standard disc, to which writing once is possible (recordable type)
DVD-RAM One type of DVD standard disc, to which writing up to 100,000 times is possible
DVD-ROM One type of DVD standard disc, to which data for computer can be recorded
DVD-RW One type of DVD standard disc, to which writing up to 1000 times is possible
DVD-Video One type of DVD standard disc, on which high-quality video and audio can be recorded
DVD Video Format Video recording/playback standard that applies to DVD-Video, DVD-R and DVD-RW
DVD Video Recording
Format
DVD Forum International organization that formulates the technical standards of DVD
E EIAJ Electronic Industries Association of Japan: An organization of manufacturers of consumer
J JPEG Joint Photographic Expert Group: International standard format for compressing still images.
L Linear PCM Linear Pulse Code Modulation: LPCM is a format that digitizes analog audio signal during
M MPEG Moving Picture Experts Group: Standard related to compression of digital video and audio.
MPEG Audio Layer 2 One of three audio compression standards (layers 1-3) defined by MPEG
MP3 MPEG1 Audio Layer-3: Audio data digital compression technology.
P Progressive playback
function
S SDMI Secure Digital Music Initiative: This conference was established by hardware makers, the
V Virtual surround This technology localizes sound at any position using only two front speakers, by subjecting
Used for outputs of HDTV video signal format. Since signals for brightness and colors are
independently handled for components signals (Y: luminance signal; PR/PB: chrominance
signals), degrading of image will be reduced.
format: Supports 5-channel full-range sound and one channel for sub-woofer sound
playback.
programs of BS di gital b roadca st, and "d igital stand ard broad cast" of curre nt image qua lity. A
tuner and TV can easily be connected to the D terminal. There are 5 types of D terminal,
depending on the different format of video signal passing thorough the D terminal.
Systems, Inc. The number of channels provided by DTS is the same for Dolby AC3.
recorded on this disc, whose size is the same as CD.
Video recording/playback standard that applies to DVD-RAM and DVD-RW: This allows
versatile editing functions, differing from the DVD Video Format.
electronic devices, industrial electronic devices and electronic components, established in
April 1948. EIAJ merged with JEIDA (Japan Electronic Industry Development Associat io n) in
November 2000 to become JEITA (Japan Electronics and Information Technology Industries
Association).
recording and converts it back to analog signal during playback.
MPEG2 is a higher standard of MPEG and is applied to video (movie) requiring higher
quality.
This function converts interlaced images to non-interlaced images and displays them. It can
play back 24-frame/second images included in DVD movie software, etc.
Recording Industry Association of America (RIAA) and music industry companies, to protect
copyrights of musical compositions.
the L and R signals to matrix operation. It uses the four transfer functions from L/R speakers
located at specified positions to both ears of listener located in a specified position, taking
into account th e sha pe of head and th e eff e ct of ea rlobes , and the tw o tran sfer functions from
any position to both ears.
2-5
2-5 OPERATING CONTROLS AND FUNCTIONS
1 2 3 4 5 6 7 8
9
10 12 13 1411
FRONT PANEL
REAR VIEW
1. /I (POWER/STANDBY)
Switch the player to ON or OFF
(As to the indication of the Operate switch, “I” indicates
ON and “
2. SKIP/FR
Go to previous chapter or track during playback; press
and hold for 1.5 seconds for a reverse search
3. PLAY
Start or resume disc playback
4. FF/SKIP
Go to next chapter or track during playback; press and
hold for 1.5 seconds for a forward search
5. STOP
Stop playback
6. OPEN/CLOSE
Open/close the disc tray
7. Disc tray
8. Display
” indicates electrical power STANDBY)
9. MAIN (AC Power Cord)
Connect to a standard AC outlet
10. COAXIAL (Digital audio out)
Connect to the AUDIO inputs of a digital (coaxial) audio
equipment
11. AUDIO OUT (Left/Right)
Connect to the AUDIO inputs of an amplifier, receiver or
stereo system
12. VIDEO OUT
Connect to the Video Input of a TV.
13. COMPONENT VIDEO OUT
Connect to a TV with the Component video in jacks.
14. S-VIDEO OUT
Connect to a TV with the S-Video inputs
Caution: Do not touch the inner pins of the jacks on the
rear panel. Electrostatic discharge may cause permanent
damage to the player.
2-6
HITACHI
DV-RM543U
/ I
DISPLAY
213
4
5
6
7
8
9
+10
0
SUBTITLE
ANGLE
REPEAT
CLEAR
AUDIO
SEARCH MODE
PAUSE/STEP
SKIP
PLAY
STOP
MENU
TOP MENU
SETUP
MODE
ZOOM
ENTER
RETURN
DISC NAVIGATION
OPEN / CLOSE
2
16
17
19
18
22
20
25
23
21
1
3
4
5
9
10
11
13
14
15
12
7
6
8
24
1. DISPLAY
REMOTE CONTROLLER
Press to access or remove the display screen during
DVD or Audio CD playback.
2.
/I
(POWER/STANDBY)
Press to turn the power on and off.
(As to the indication of the Operate switch, "I" shows
ON and "
" shows electrical power stand-by.)
3. AUDIO
Press to select a desired audio language or sound
mode.
4. SUBTITLE
Press to select the desired subtitle language.
5. ANGLE
Press to change the camera angle to see the sequence
being played back from a different angle.
6. CLEAR
Press to reset the setting.
7. REPEAT
Repeats playback of the current disc, title, chapter or
track.
8. PAUSE/STEP
Press to pause Disc playback. Press repeatedly to
advance the DVD picture step by step or one frame at a
time.
9. DISC NAVIGATION
Press to display the first scenes of each chapter of the
title being played.
10. PLAY
Press to begin playback.
11.
Press to view the DVD picture in fast reverse motion or
to reverse playback of an Audio CD.
12. TOP MENU
Press to call up the title menu.
13. SETUP
Press to enter the setup mode.
14. MODE
Activates program playback or random playback mode
when playing CDs or MP3. Sets Black level and virtual
surround.
15. ZOOM
Enlarges part of a DVD-reproduced image.
16. SEARCH MODE
Press to access or remove the Search display, which
allows you to go directly to a specific Title/ Chapter/
Track/ Time.
17. OPEN/CLOSE
Press to open or close the disc loading tray.
18. Numerical Buttons
Press to directly select a Track (Audio CD or MP3) for
playback.
19. SKIP
Press to skip Chapters or Tracks.
20.
Press to fast forward the Disc. Press PAUSE/STEP,
then press this button to begin slow motion playback.
Press this button repeatedly to change the forward
speed of slow motion.
21. STOP
Press to stop the disc motion.
22. MENU
Press to display the menu of the Disc.
23. Arrow Buttons (
)
Move the cursor and determines its position.
24. ENTER
Press to accept a setting.
25. RETURN
Returns to the previous operation.
2-7
MAINTENANCE AND INSPECTION3
3-1 TROUBLESHOOTING
Troubleshooting is how to service for the specifying malfunction or poor parts.
Detect malfunction or poor parts and service as the following charts.
FLOW CHART NO.1
The power cannot be turned on.
Is the fuse normal?
Yes
Is normal state restored when once unplugged
power cord is plugged again after several seconds?
Yes
Is the EV +3.3V line voltage normal?
Yes
Check each rectifying circuit of the secondary circuit
and service it if defective.
FLOW CHART NO.2
The fuse blows out.
Check the presence that the primary component
is leaking or shorted and service it if defective.
After servicing, replace the fuse.
FLOW CHART NO.3
When the output voltage fluctuates.
Does the photo coupler circuit on the secondary
side operate normally?
Yes
Check IC1001, D1012, D1024 and their periphery,
and service it if defective.
No
No
No
No
See FLOW CHART No.2 <The fuse blows out.>
Check if there is any leak or short-circuiting on the
primary circuit component, and service it if defective.
(Q1003, Q1031, T1001, D1001, D1002, D1004,
D1005, D1011, C1003, C1005)
Check the presence that the rectifying diode or
circuit is shorted in each rectifying circuit of
secondary side, and service it if defective.
Check IC1001, IC1006, D1048 and their
periphery, and service it if defective.
FLOW CHART NO.4
When buzz sound can be heard in the vicinity of power circuit.
Check if there is any short-circuit on the rectifying diode and the circuit in each rectifying circuit of the secondary side
and service it if defective.
FLOW CHART NO.5
-FL is not outputted.
Is approximately -23V voltage supplied to the
anode of D1003?
Check if there is any leak or short-circuit
on the loaded circuit, and service it if defective.
(D1003, D1006, D1008, D1016, D1030, IC1002, Q1002, Q1004, Q1005, Q1011)
No
Yes
3-1
Check D1003 and periphery circuit, and service it
if defective.
,
FLOW CHART NO.6
P-ON+10V (EV+11V) is not outputted.
Is 11V voltage supplied to the emitter of Q1002?
Yes
Is the voltage of base on Q1002 lower than the
voltage of emitter on Q1002 when turning the power on?
Yes
Replace Q1002.
FLOW CHART NO.7
P-ON+5V is not outputted. (EV+11V is outputted normally.)
Is the "H" signal inputted into the base of Q1004?
Yes
Replace Q1004.
FLOW CHART NO.8
P-ON+3.3V is not outputted. (P-ON+10V is outputted normally.)
Is 3.3V voltage supplied to the collector of Q1011?
Yes
Replace Q1011 or R1067.
No
No
No
No
Check D1030, D1048, C1035, C1048, L1009 and
the periphery circuit, and service it if defective.
Check Q1016 and PWRCON line and service it if
defective.
Check R1068 and D1046, and service it if defective.
Check D1008, C1007, C1038, L1007 and the
periphery circuit, and service it if defective.
FLOW CHART NO.9
EV+5V is not outputted.
Is EV+11V outputted normally?
Yes
Check D1047 and the periphery circuit,
and service it if defective.
FLOW CHART NO.10
EV+1.2V is not outputted.
Is 2.5V voltage supplied to Pin(1) of IC1002?
Yes
Replace IC1002.
No
No
Refer to "FLOW CHART NO.6"
<P-ON+10V (EV+11V) is not outputted.>
Check D1006, C1014, C1050, L1008 and the
periphery circuit, and service it if defective.
3-2
Loading...