Marantz CDR-631 Service Manual
Service
CDR631 /F1B, /N1M, /U1B
Manual
REMARK : This service manual explains them by extracting specifications
designed for the model CDR631 only. The explanation for CD-R module
"MAR770" (Loader : CDL4009' + CD-R Main board) is not mentioned on this
service manual.
The CD-R module information is described in the service manual of CD-R
modules <MAR770/MAR775>.
POWER
CD Recorder
CD RECORDER CDR631
IR
Recordable
ReWritable
STANDBY
HEADPHONE LEVEL
010
TIME
TEXT
12
6
4
3
9
8
7
TR.INCR.
REC MODE
FINAL
PROG
5
INPUT
0
REPEATRANDOM
STORE
DELETE
MENU
CANCL
ERASE
REC LEVEL/SELECT
PUSH ENTER
CDR631
TABLE OF CONTENTS
SECTION PAGE
MAIN UNIT
1. Servicing the CDR631 ............................................................................................................................... 1
2. TECHNICAL SPECIFICATIONS ............................................................................................................... 3
3. WARNINGS .............................................................................................................................................. 4
4. SERVICE HINTS AND TOOLS ................................................................................................................. 5
5. DIAGNOSTIC SOFTWARE ....................................................................................................................... 6
6. FAULTFINDING TREES ......................................................................................................................... 10
7. FAULTFINDING GUIDE .......................................................................................................................... 14
8. WIRING DIAGRAM ................................................................................................................................. 29
9. BLOCK DIAGRAM ................................................................................................................................... 31
10. SCHEMATIC DIAGRAM AND PARTS LOCATION ................................................................................. 33
11. EXPLODED VIEW AND PARTS LIST ..................................................................................................... 43
12. ELECTRICAL PARTS LIST ..................................................................................................................... 46
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
R
Printed in Japan
CDR631
387K855010 MIT
3120 785 22410
First Issue 2001.02
MARANTZ DESIGN AND SERVICE
MARANTZ AMERICA, INC.
Using superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound.
Only original MARANTZ parts can insure that your MARANTZ product will continue to perform to the specifications for which
it is famous.
Parts for your
MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent.
ORDERING PARTS :
Parts can be ordered either by mail or by Fax.. In both cases, the correct part number has to be specified.
The following information must be supplied to eliminate delays in processing your order :
1. Complete address
2. Complete part numbers and quantities required
3. Description of parts
4. Model number for which part is required
5. Way of shipment
6. Signature : any order form or Fax. must be signed, otherwise such part order will be considered as null and void.
USA
MARANTZ AMERICA, INC
440 MEDINAH ROAD
ROSELLE, ILLINOIS 60172
USA
PHONE : 630 - 307 - 3100
FAX : 630 - 307 - 2687
AMERICAS
SUPERSCOPE TECHNOLOGIES, INC.
MARANTZ PROFESSIONAL PRODUCTS
2640 WHITE OAK CIRCLE, SUITE A
AURORA, ILLINOIS 60504 USA
PHONE : 630 - 820 - 4800
FAX : 630 - 820 - 8103
AUSTRALIA
QualiFi Pty Ltd,
24 LIONEL ROAD,
MT. WAVERLEY VIC 3149
AUSTRALIA
PHONE : +61 - (0)3 - 9543 - 1522
FAX : +61 - (0)3 - 9543 - 3677
NEW ZEALAND
WILDASH AUDIO SYSTEMS NZ
14 MALVERN ROAD MT ALBERT
AUCKLAND NEW ZEALAND
PHONE : +64 - 9 - 8451958
FAX : +64 - 9 - 8463554
EUROPE / TRADING
MARANTZ EUROPE B.V.
P.O.BOX 80002, BUILDING SFF2
5600 JB EINDHOVEN
THE NETHERLANDS
PHONE : +31 - 40 - 2732241
FAX : +31 - 40 - 2735578
AUSTRALIA
TECHNICAL AUDIO GROUP PTY, LTD
558 DARLING STREET,
BALMAIN, NSW 2041,
AUSTRALIA
PHONE : 61 - 2 - 9810 - 5300
FAX : 61 - 2 - 9810 - 5355
THAILAND
MRZ STANDARD CO.,LTD
746 - 754 MAHACHAI ROAD.,
WANGBURAPAPIROM, PHRANAKORN,
BANGKOK, 10200 THAILAND
PHONE : +66 - 2 - 222 9181
FAX : +66 - 2 - 224 6795
TAIWAN
PAI- YUING CO., LTD.
6 TH FL NO, 148 SUNG KIANG ROAD,
TAIPEI, 10429, TAIWAN R.O.C.
PHONE : +886 - 2 - 25221304
FAX : +886 - 2 - 25630415
BRAZIL
PHILIPS DA AMAZONIA IND. ELET. ITDA
CENTRO DE INFORMACOES AO
CEP 04698-970
SAO PAULO, SP, BRAZIL
PHONE : 0800 - 123123
FAX : +55 11 534. 8988
(Discagem Direta Gratuita)
CANADA
LENBROOK INDUSTRIES LIMITED
633 GRANITE COURT,
PICKERING, ONTARIO L1W 3K1
CANADA
PHONE : 905 - 831 - 6333
FAX : 905 - 831 - 6936
SINGAPORE
WO KEE HONG DISTRIBUTION PTE LTD
130 JOO SENG ROAD
#03-02 OLIVINE BUILDING
SINGAPORE 368357
PHONE : +65 858 5535 / +65 381 8621
FAX : +65 858 6078
MALAYSIA
WO KEE HONG ELECTRONICS SDN. BHD.
SUITE 8.1, LEVEL 8, MENARA GENESIS,
NO. 33, JALAN SULTAN ISMAIL,
50250 KUALA LUMPUR, MALAYSIA
PHONE : +60 3 - 2457677
FAX : +60 3 - 2458180
JAPAN
MARANTZ JAPAN, INC.
Technical
35- 1, 7- CHOME, SAGAMIONO
SAGAMIHARA - SHI, KANAGAWA
JAPAN 228-8505
PHONE : +81 42 748 1013
FAX : +81 42 741 9190
KOREA
MK ENTERPRISES LTD.
ROOM 604/605, ELECTRO-OFFICETEL, 16-58,
3GA, HANGANG-RO, YONGSAN-KU, SEOUL
KOREA
PHONE : +822 - 3232 - 155
FAX : +822 - 3232 - 154
SHOCK, FIRE HAZARD SERVICE TEST :
CAUTION : After servicing this appliance and prior to returning to customer, measure the resistance between either primary AC
cord connector pins ( with unit NOT connected to AC mains and its Power switch ON ), and the face or Front Panel of product and
controls and chassis bottom.
Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before AC power is applied, and
verified before it is return to the user/customer.
Ref. UL Standard No. 813.
In case of difficulties, do not hesitate to contact the Technical
Department at above mentioned address.
001120MIT
1.Servicing the CDR631
1.1 INTRODUCTION:
The CDR631is the professional version of a CD recorder, this means that the SCMS (Serial Copy Management System) is
not included. The CDR631can record on the Audio and CDRs PC.
The CDR631is suitable for recording and playback of CD-R W discs (CD-Re Writable disc).
Playback & Recording and Disc
Disc
Player/Recorder
Audio CD Player
Current products Ex:CD-17
Audio CD Player
CD-RW playback Ex:CD-17MK II
CD-RW Recorder
For Professional Ex:CDR630/631/640
CD-RW Recorder
For Consumer Ex:DR6000/6050
CDR
CD
Consumer Disc
Finalized
non
Finalized
Professional Disc
Finalized Finalized
non
Finalized
Consumer Disc
Finalized
PP no P no no no no no -
PP no P no P no P no -
P P P/R P P/R P/R P/R P/R P/R no
P P P/R PPPP P/R P/R YES
CD-RW
non
Finalized
Professional Disc
non
Finalized
SCMS
Consumer : For Digital Audio
Professional : For General use (Including PC)
P : Playback
R : Recording
1.2 OPENING THE PRODUCT:
The product can be opened by removing the top cover (8 screws). Once the product is opened one can have access to the
several PCB's and the main module. To have access to the Display PCB, the Headphone PCB first the front cover has to
be removed.
SWITCHING POWER
SUPPLY BOARD
MOTER
BOARD
CDR LOADER
DISPLAY BOARD
Below the several PCB's and it function and service policy will be discussed:
AUDIO
BOARD
HEAD
PHONE
BOARD
1
1.2.1 CDR loader (CDR main module CDL4009 or MAR770):
This complete CDR loader is considered as not repairable in the field. therefore this module will be repaired centrally. A
module exchange procedure will be set up for this purpose. The module can be removed from the product by removing 4
screws and the transformer (see demounting the CDR module on page 1-7), and loosing the connectors.
This module is the complete CD recorder, it contains the following parts:
CD Mechanism (CDM4009'). Underneath this mechanism a PCB is mounted which is adjusted to the mechanism (laser
current settings are stored in EEPROM).
Loader Assy. This mechanical assy takes care for the tray control.
Main PCB. This PCB takes care that the (analog or digital) signal to be recorded is converted into a suitable signal which
can be recorded on the disc.
Digital signals with an other sampling frequency then 44.1kHz will be converted in the sample rate converter (DASP) to
44.1kHz.
Analog signals will be first converted into a digital converter by the AD converter.
This PCB also takes care that the signal from the CD (playback) is converted into a suitable digital signal (or analog via
the DA converter).
The main microprocessor controls the several functions of this PCB.
1.2.2 Switching Power Supply Board.
This PCB contains the Power Supply, which delivers the sevelal volteges for the each PCB in the CDR631. On this Power
Supply a fuse (Primaly side) are mounted on this PCB. The power SW is jointed the Power bottom on the front panel.
All parts are available as spare parts.
1.2.3 Audio Board.
This PCB contains the audio part,witch takes care that the signal from CDR main module is converted into an analog signal
via DA converter and outputs the analog signal. This PCB contains the output and input connectors also. All parts are available
as spare parts.
1.2.4 Display Board.
This PCB contains the Display, which informs the user about the status of the recording/playback process and it also takes
care for scanning the keys on the front panel. The information from the keys is fed via a I C connection to the main
microprocessor on the CDR loader module. Information which needs to be displayed is also fed via this I C line from the
main microprocessor on the CDR loader module to the display controller.
The parts for this PCB are available as service parts so this PCB can be repairable up to component level.
2
2
1.2.5 Headphone Board.
This PCB contains the headphone socket and potentiometer which controls the headphone volume. All parts are available
as spare parts.
IMPORTANT
In case of replace the CD-R module "MAR770", the initialization is necessary.
Please initialize the CD-R module with following orders.
1. Press the POWER button (POWER ON) while depressing FINALIZE button and REC
MODE button together.
2. FL Display shows;
WAIT
PGM PROTOCOL
PGM PORT END
3. Press the POWER button (POWER OFF).
Then the CD-R module set up to CDR631 own status.
2
2 TECHNICAL SPECIFICATIONS
GENERAL
System .................................................................................................... Compact disc digital audio
Number of channels ................................................................................ 2 (stereo)
Applicable discs ...................................................................................... CD, CD-R , CD-RW
Power Requirement
F version ........................................................................................... AC 100 V 50 / 60 Hz
N version ........................................................................................... AC 100 - 240 V 50 /60 Hz
U version. .......................................................................................... AC 120 V 60 Hz
Power Consumption ................................................................................ 19 W
Operating Temperature . ......................................................................... 5 °
Dimension (MAX)
Width ................................................................................................. 483 mm
Height ................................................................................................ 100 mm
Depth ................................................................................................ 340 mm
Weight ................................................................................................ 4.7 kg
AUDIO
Frequency Response ............................................................................. 20 Hz - 20 kHz
Playback S/N .......................................................................................... 108 dB
Playback Dynamic Range ....................................................................... 95 dB
Playback Total Harmonic Distortion ........................................................ 92 dB
Recording S/N (analog) .......................................................................... 96 dB
Recording Dynamic Range (analog) ....................................................... 92 dB
Recording Total Harmonic Distortion (analog) ........................................ 88 dB
Analog Output Voltage ............................................................................. 2 Vrms
Digital Coaxial Output ............................................................................. 0.5 V (p-p) / 75 ohms
Digital Optical Output .............................................................................. - 20 dB
Headphones ............................................................................................ 0 - 5 Vrms / 8 - 2000 ohms
Recording values for line input
Digital Coaxial Input (automatic sample rate conversion) ....................... 11 - 56 kHz
Digital Optical Input (automatic sample rate conversion) ........................ 11 - 56 kHz
Digital XLR Input (automatic sample rate conversion) ............................ 11 - 56 kHz
Analog Input Sensitivity (Unbalanced) .................................................... 500 mVrms / 50 kohms
Analog Input Sensitivity (Balanced) ........................................................ 0 dBu to +22 dBu / 50 kohms
(default setting : +16 dBu / 50 kohms)
Specifications subject to change without prior notice.
C - 35 °C
3
3. WARNINGS
WARNING
All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD). Careless handling during
repair can reduce life drastically.
When repairing, make sure that you are connected with the
same potential as the mass of the set via a wristband with
resistance. Keep components and tools at this potential.
ATTENTION
Tous les IC et beaucoup d´autres semi-conducteurs sont
sensibles aux décharges statiques (ESD). Leur longévite
pourrait être considérablement écourtée par le fait qu´aucune
précaution nést prise à leur manipulation.
Lors de réparations, s´assurer de bien être relié au même
potentiel que la masse de l´appareil et enfileer le bracelet
serti d´une résistance de sécurité.
Veiller à ce que les composants ainsi que les outils que l´on
utilise soient également à ce potentiel.
WARNUNG
Alle ICs und viele andere Halbleiter sind empfindlich
gegenüber elektrostatischen Entladungen (ESD).
Unsorgfältige Behandlung im Reparaturfall kann die
Lebensdauer drastisch reduzieren.
Sorgen Sie dafür, daß sie im Reparaturfall über ein Pulsarmband mit Widerstand mit dem Massepotential des
Gerätes verbunden sind.
Halten Sie Bauteile und Hilfsmittel ebenfalls auf diesem
Potential.
AVAILABLE ESD PROTECTION EQUIPMENT :
anti-static table mat large 1200x650x1.25mm 4822 466 10953
anti-static wristband 4822 395 10223
connection box (3 press stud connections, 1M ) 4822 320 11307
extendible cable (2m, 2M , to connect wristband to connection box) 4822 320 11305
connecting cable (3m, 2M , to connect table mat to connection box) 4822 320 11306
earth cable (1M , to connect any product to mat or to connection box) 4822 320 11308
KIT ESD3 (combining all 6 prior products - small table mat) 4822 310 10671
wristband tester 4822 344 13999
ESD
WAARSCHUWING
Alle IC´s en vele andere halfgeleiders zijn gevoelig voor
electrostatische ontladingen (ESD).
Onzorgvuldig behandelen tijdens reparatie kan de levensduur
drastisch doen vermindern. Zorg ervoor dat u tijdens reparatie
via een polsband met weerstand verbonden bent met hetzelfde
potentiaal als de massa van het apparaat.
Houd componenten en hulpmiddelen ook op ditzelfde potentiaal.
AVVERTIMENTO
Tutti IC e parecchi semi-conduttori sono sensibili alle scariche
statiche (ESD).
La loro longevità potrebbe essere fortemente ridatta in caso di
non osservazione della più grande cauzione alla loro
manipolazione. Durante le riparationi occorre quindi essere
collegato allo stesso potenziale che quello della massa
delápparecchio tramite un braccialetto a resistenza.
Assicurarsi che i componenti e anche gli utensili con quali si
lavora siano anche a questo potenziale.
small 600x650x1.25mm 4822 466 10958
Safety regulations require that the set be restored to its
original condition and that parts which are identical with
those specified be used.
Safety components are marked by the symbol
Les normes de sécurité exigent que l`appareil soit remis
à l`état d`origine et que soient utilisées les pièces de
rechange identiques à celles spécifiées.
Les composants de sécurité sont marqués
Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu beachten. Der Originalzustand des Gerätes
darf nicht verändert werden. Für Reparaturen sind Originalersatzteile zu verwenden.
Sicherheitsbauteile sind durch das Symbol markiert.
U : VERSION N : VERSION
DANGER: Invisible laser radiation when open.
AVOID DIRECT EXPOSURE TO BEAM.
Varning !
Advarsel !
Osynlig laserstrålning när apparaten är öppnad och
spärren är urkopplad. Betrakta ej strålen.
Usynlig laserstråling ved åbning når sikkerhedsafbrydere
er ude af funktion. Undgå udsaettelse for stråling.
CLASS III b
LASER PRODUCT
SAFETY
Veiligheidsbepalingen vereisen, dat het apparaat in zijn
oorspronkeliijke toestand wordt teruggebracht en dat
onderdelen, identiek aan de gespecificeerde, worden toegepast.
De Veiligheidsonderdelen zijn aangeduid met het symbool
Le norme di sicurezza estigono che l´apparecchio venga
rimesso nelle condizioni originali e che siano utilizzati i
pezzi di ricambiago identici a quelli specificati.
Componenty di sicurezza sono marcati con
CLASS 3B
LASER PRODUCT
Varoitus !
Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina
näkymättömälle laserisäteilylle. Älä katso säteeseen !
After servicing and before returning the set to customer
perform a leakage current measurement test from all
exposed metal parts to earth ground, to assure no
shock hazard exists.
The leakage current must not exceed 0.5mA.
"Pour votre sécurite, ces documents doivent être utilisés par
des spécialistes agréés, seuls habilités à réparer votre
appareil en panne".
4
4. SERVICE HINTS AND TOOLS
SERVICE TOOLS
“The tools listed below are standard test tools that can be used for repairing and testing Marantz
CD Players & Recorders. Unless otherwise stated in the text, these tools are not mandatory for
servicing Marantz CD Players & Recorders”
Audio signals disc 4822 397 30184
Disc without errors (SBC444)+
Disc with DO errors, black spots and fingerprints (SBC444A) 4822 397 30245
Disc (65 min 1kHz) without no pause 4822 397 30155
Max. diameter disc (58.0 mm) 4822 397 60141
Torx screwdrivers
Set (straight) 4822 395 50145
Set (square) 4822 395 50132
13th order filter 4822 395 30204
Hexagon socket screw button (No. 1.5)
5
5. Diagnostic Software
5.1 Electrical service diagnostics
ELECTRICAL SERVICE DIAGNOSTICS
(software versions, test for defective components)
If power ON,
switch power OFF
Load CD-DA disc (SBC444A)
Press <PLAY> + <F FWD>
simultaneously and switch ON unit
PLAYER
INFORMATION
Display :
"PLAYER ID"
"SW VERSION BACK END"
"SW VERSION CDR LOADER"
(DR6050
CDR MAIN
BOARD TEST
Display :
PASS OR FAIL
Display :
PASS OR FAIL
Display :
PASS OR FAIL
Display :
PASS OR FAIL
Display :
PASS OR FAIL
Display :
PASS OR FAIL
"SW VERSION CD LOADER"
"DTST1"
DRAM test (7702)
"DTST2"
FLASH CHECKSUM test (7702)
"DTST3"
FLASH ERASE test (7702)
"DTST4" *
CODEC test (7702)
"DTST5"
CDR LOADER
COMMUNICATION test
"DTST5"
*
CD LOADER
COMMUNICATION test
* FOR CDR500 ONLY
)
ABORT TEST
Press <F FWD>
ABORT TEST
Press <F FWD>
ABORT TEST
Press <F FWD>
ABORT TEST
Press <F FWD>
ABORT TEST
Press <F FWD>
ABORT TEST
Press <F FWD>
ABORT TEST
Press <F FWD>
LOADER TESTS
CDR LOADER TEST
CD-DA disc must be loaded
Display shows current disc time
Test OK?
YES
CD LOADER TEST *
CD-DA disc must be loaded
Display shows current disc time
Test OK?
YES
DISPLAY TEST
DISPLAY TEST
Display segments blink at f=1Hz
KEYBOARD &
RC TEST
KEYBOARD & RC TEST
Display shows name of pressed keys
Press <F FWD>
NO
Display :
or
or
* FOR CDR500 ONLY
NO
Display :
or
or
"BERR1"
"NO CDDA"
"NO DISC"
Press <F FWD>
"BERR2"
"NO CDDA"
"NO DISC"
Press <F FWD>
Tests OK?
YES
NO
Display :
n = failed test
Display next
failed test
To end test, switch OFF unit
"DERRn"
Figure 5-1
6
5.1.1 Description
The intention of the electrical service diagnostics is to show the
software versions present in the player and to direct the dealer
towards defective internal units. The units are : the CDR main
board, the CDR loader, the CD loader in case of a CDR500 and
the keyboard/display board. A sequence of tests is executed
automatically. Some of the tests can be aborted or skipped
without the result being taken into account. External tools or
disassembly of the unit is not necessary to get the diagnostic
information. Pressing keys [PLAY/PAUSE] and [F FWD]
simultaneously while switching on the unit, starts the test.
Switching off the unit ends the test.
5.1.2 Requirements to perform the test
• Working keyboard to start up the test.
• Working local display to check the output messages.
• A CD-DA disc with a minimum of 3 tracks in all trays to
perform the disc test.
5.1.3 Description of the tests
Player information
In this part of the test the following important information can be
checked without removing the cover :
• Recorder ID.
• SW-version back end of player.
• SW-version CDR loader.
• SW-version CD loader (only for CDR500).
CDR main board test
As soon as the CDR main board tests are finished, all failure
messages (if any) will be displayed sequentially by pressing the
[F FWD] key. The message "DERRn" will be displayed with n
indicating the faulty test number.
If one of the tests is aborted with the [F FWD] key, no error
message will be displayed for this test. The flash data erase
test ("DTST3") can not be aborted !
The CDR main board test consists out of :
DRAM test
Display : "DTST1". The DRAM used for buffer management is
tested by writing, reading and verifying test patterns.
Flash checksum test
Display : "DTST2". This test checks the checksum of the
player's SW stored in the flash.
Flash data erase
Display : "DTST3". During this test, all temporary information
(CDtxt) in the flash is erased.
CODEC (ADC/DAC) test
Display : "DTST4". This test checks the CODEC IC by writing,
reading and verifying test patterns. The test is not applicable for
CDR950.
CDR communication test
Display : "DTST5". The communication between the host
processor (DASP) and the CDR loader via the DSA-R-bus is
tested.
CD communication test
Display : "DTST6"). The communication between the host
processor (DASP) and the CD loader is tested. The test is only
applicable for CDR500.
Loader tests
These tests determine if the CDR loader and the CD loader in
case of a CDR500 work correctly. A CD-DA disc with a
minimum of 3 tracks needs to be inserted in both loaders. A
disc test is executed to check focus control, disc motor control,
radial control and jump grooves control. The disc test is
performed by audio play-back of 5 seconds at the beginning,
middle and end of the disc.
CDR loader test
During the test, the current disc time is shown. In case of an
error the message "BERR1" will be displayed and the [F FWD]
key must be pressed to continue with the following test.
Pressing the [F FWD] key also aborts this test.
CD loader test
For CDR500 only. During the test, the current disc time is
shown. In case of an error the message "BERR2" will be
displayed and the [F FWD] key must be pressed to continue
with the following test. Pressing the [F FWD] key also aborts
this test.
Display test
All segments will blink at a frequency of 1 Hz. Pressing the [F
FWD] key will start the next test because the user has to check
for himself if all segments work properly.
Keyboard and remote control tests
The test will give the user the ability to test every key without
executing the function assigned to it. Therefore, the user needs
to press every key on the keyboard and the remote control. The
display will show the name of the key being pressed. Pressing
more than one key at once will give an unpredictable result
except for the service combinations : [PLAY/PAUSE] + [STOP],
[PLAY/PAUSE] + [ERASE] + [RECORD], [PLAY/PAUSE] +
[RECORD].
7
5.2 Mechanical service diagnostics
MECHANICAL SERVICE DIAGNOSTICS
(test for defective components)
If power ON,
switch power OFF
Press <PLAY/PAUSE> + <STOP>
simultaneously and switch
To end test, switch OFF unit
ON unit
FOCUS TEST
Display shows
Visual inspection
SLEDGE TEST
Visual inspection
Display shows
“BUSY”
“BUSY”
<
OPEN
>
<
CLOSE
>
<FWD><REWIND>
TRAY TEST
Visual inspection
Display shows
even if tray is blocked
“OPENED”
5.2.1 Description
No external tools are required to perform this test. The cover
needs to be removed because the user has to check the
movements of the tray, focus and sledge visually. Pressing
keys [PLAY/PAUSE] and [STOP] simultaneously while
switching on the unit, starts the test. Switching off the unit ends
the test. In case of a CDR500, one can check the CD loader
mechanics in the same way by pressing the above key
combination on the CD player keys.
5.2.2 Requirements to perform the test
• Working keyboard to cycle through the tests and to start up
the test.
• Working local display to check the output messages.
5.2.3 Description of the tests
Focus control test
The focussing lens is continuously moving up and down. The
display reads "BUSY".
Sledge control test
After pressing [F FWD] the sledge continuously moves up and
down. Pressing [REWIND] stops the sledge at the position it is
in and the focus control test resumes. The display reads
"BUSY".
Figure 5-2
pressing [F FWD]. One has to stop these tests pressing
[REWIND] before it is possible to close the tray again.
Depending on the action the display reads "OPEN",
"OPENED", "CLOSE" or "BUSY".
Tray control test
This test starts from within the focus control test routine.
Pressing [OPEN/CLOSE] moves the tray in or out. In the tray
open position one can initiate focus and sledge tests by
8
5.3 DC-erase service mode
DC ERASE SERVICE MODE
(erasement of complete CD-RW)
Load CD-RW disc
<ERASE> + <RECORD>
simultaneously and switch
Display shows:
“
ER mm:ss
Press
ON unit
”
mm
ss :remaining seconds
TOTAL
illuminated
To end test, switch OFF unit
:remaining minutes
and
REM
are also
Display shows:
“
when the erase function is
PASSED
completed
ERROR
“
if DC ERASE fails
Figure 5-3
”
”
5.3.1 Description
This test is initiated by pressing [ERASE] and [RECORD]
simultaneously while switching on the unit. The player will
erase a complete CD-RW disc (including PMA and ATIP lead
out area) at speed N=2. The display shows the countdown of
the remaining time required for the operation to complete. The
format is "ER mm:ss", where "mm" are the remaining minutes
and "ss" the remaining seconds. After completion the message
"PASSED" is shown, and the player has to be switched off and
on again to start up in normal operating mode. Switching off the
unit before completion of the test, leaves the disc in an
unpredictable state. In such case only a complete DC-erase
procedure can recover the CD-RW disc.
5.3.2 Requirements to perform the test
• Functional CDR player.
• A CD-RW audio disc must be present in the tray.
9
6. Faultfinding Trees
NO DISC LOADED
SWITCH ON POWER
PRESS <DISPLAY>
DISPLAY?
YES
DISPLAY:
"INSERT DISC"
YES
CHECK:
• MAINS, MAINS CABLE
• POWER SUPPLY & TRAFO
⇒
WIRING
⇒
ON/OFF SWITCH
⇒
FUSES
⇒
NO
• DISPLAY (SEE FAULT FINDING GUIDE DISPLAY BOARD)
CHECK:
NO
• WIRING
• POWER SUPPLY VOLTAGES
• ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
OR
VOLTAGES
⇒
WIRING
⇒
SUPPLY VOLTAGES
⇒
CLOCK SIGNAL 8MHz
⇒
CONTROL SIGNALS
⇒
KEYBOARD
⇒
STANDBY LED
⇒
ELECTRICAL SERVICE DIAGNOSTICS:
DISPLAY TEST, KEYBOARD TEST
"DERRn"
"BERRn"
ERROR OCCURS
PRESS
<OPEN/CLOSE>
TRAY?
YES
INSERT DISC
PRESS <OPEN/CLOSE>
CD-DA DISC
LOADED?
SEE CD-DA DISC
FAULT FINDING
CHECK:
• DISPLAY BOARD (SEE FAULT FINDING GUIDE DISPLAY BOARD)
⇒
NO
• MECHANICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF ERROR OCCURS
YESYES
SEE CD-R DISC
FAULT FINDING
WIRING
⇒
SUPPLY VOLTAGES
⇒
CLOCK SIGNAL 8MHz
⇒
CONTROL SIGNALS
⇒
KEYBOARD
⇒
ELECTRICAL SERVICE DIAGNOSTICS:
DISPLAY TEST, KEYBOARD TEST
CD-R DISC
LOADED?
NONO
SEE CD-RW DISC
CD-RW DISC
LOADED?
YES
FAULT FINDING
Figure 6-1
10
Faultfinding T rees
CD-DA DISC LOADED
DISC
DETECTION &
READING?
YES
DISPLAY:
“CD”
&
T.O.C. INFO?
YES
PRESS <PLAY>
NO
NO
CHECK:
• WIRING
• POWER SUPPLY VOLTAGES
• ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
OR
"BERRn"
CHECK:
• DISC: DIRT, SCRATCHES, DAMAGED...
• ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
OR
"BERRn"
ERROR OCCURS
ERROR OCCURS
"DERRn"
"DERRn"
ANALOG
AUDIO
OUT?
YES
DISTORTION?
NO
HEADPHONE?
YES
DIGITAL
AUDIO
OUT?
YES
PLAY BACK OF CD-DA
DISCS OK
NO
YES
NO
NO
CHECK:
AUDIO CONNECTIONS & CABLES
•
AUDIO BOARD
•
⇒
FLEX & WIRE CONNECTIONS
⇒
+5V (pin 4. W855), +12V(pin 2. W855), -12V(pin 6. W855)
⇒
SEE FAULTFINDING GUIDE AUDIO BOARD - ANALOG OUT PATH
• ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
OR
"BERRn"
CHECK:
CONNECTION OF HEADPHONE
•
HEADPHONE BOARD
•
⇒
⇒
⇒
⇒
⇒
•
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
OR
"BERRn"
CHECK:
AUDIO CONNECTIONS & CABLES
•
AUDIO BOARD
•
⇒
⇒
⇒
• ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
OR
"BERRn"
ERROR OCCURS
WIRE CONNECTION
+10V (pin 6. J903), -10V (pin 2. J903)
KILL VOLTAGE (pin 1. J903) : -8V DURING PLAY
KILL TRANSISTORS QN01 - QN02
PLAY SBC442 DISC (1kHz, -30dB) AND CHECK SIGNAL AT
Q901
ERROR OCCURS
FLEX & WIRE CONNECTIONS
+5V (pin 3. W853)
CHECK SINGNAL
-FOR COAXIAL OUT AT QT31,LT13
-FOR OPTICAL OUT AT QT31,JT21
ERROR OCCURS
"DERRn"
"DERRn"
"DERRn"
Figure 6-2
11
CD-R DISC LOADED
DISC
DETECTION &
READING?
YES
DISPLAY:
“CD R”
&
OPC INFO?
YES
NO
NO
CHECK:
• WIRING
• POWER SUPPLY VOLTAGES
• ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
OR
"BERRn"
DISPLAY:
“CD”
OR
T.O.C. INFO?
YES
ERROR OCCURS
“CD R”
&
NO
"DERRn"
CHECK:
• DISC: DIRT, SCRATCHES, DAMAGED...
• ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
OR
"BERRn"
ERROR OCCURS
"DERRn"
CD-R DISC EMPTY
START MANUAL
RECORDING FROM
ANALOG SOURCE
ANALOG IN?
YES
LEVEL
ADJUSTABLE?
YES
FINALISED OR PARTIALLY
RECORDED CD-R DISC
LOADED :
SEE CD-DA DISC
FAULT FINDING
CHECK:
AUDIO CONNECTIONS & CABLES
•
AUDIO BOARD
•
⇒
+10V (QM01), -10V (QM02)
⇒
NO
CHECK SINGNAL
-FOR BALANCE IN AT Q326
-FOR UNBALANCE IN AT Q331
-FOR BALANCE & UNBALANCE IN AT Q332
-FOR OPTICAL IN AT J301
• ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
OR
"BERRn"
CHECK:
AUDIO CONNECTIONS & CABLES
•
DISPLAY BOARD (SEE FAULT FINDING GUIDE DISPLAY BOARD)
•
NO
AUDIO
•
• ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
OR
"BERRn"
ERROR OCCURS
⇒
EASY JOG KNOB
⇒
I2C COMMUNICATION
⇒
ELECTRICAL SERVICE DIAGNOSTICS:
KEYBOARD TEST
BOARD (SEE FAULT FINDING GUIDE I/O BOARD - ANALOG IN PATH)
ERROR OCCURS
"DERRn"
"DERRn"
DIGITAL IN?
OPTICAL IN?
YES
RECORDING
SUCCESSFUL?
YES
SET OK
CHECK:
AUDIO CONNECTIONS & CABLES
•
NO
AUDIO BOARD
•
⇒
⇒
⇒
FLEX AND WIRE CONNECTIONS
+5V (pin 3 conn. W853)
CHECK SINGNAL
-FOR XLR IN AT Q326
-FOR COAXIAL IN AT Q331
-FOR XLR & COAXIAL IN AT Q332
-FOR OPTICAL IN AT J301
• ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
OR
"BERRn"
NO
CHECK:
• ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
OR
"BERRn"
ERROR OCCURS
ERROR OCCURS
Figure 6-3
"DERRn"
"DERRn"
12
Loading...