Panasonic SADK20 - MINI CD/DVD CHANGER User manual

■AMPLIFIER SECTION
Power Output
THD 10%, both channels driven
75 Hz
Subwoofer 150 W (4 Ω)
1 kHz
Front 35 W per ch (6 Ω)
Center 60 W (8 Ω)
Surround 30 W per ch (8 Ω)
Total power in stereo mode
(Front and Subwoofer) 220 W
Total power in Home Theater mode
340 W
Power output
THD 10%, both channels driven
50 Hz - 120 Hz
Subwoofer 130 W (4 Ω)
60 Hz - 16 kHz
Front 28 W per ch (6 Ω)
100 Hz - 16 kHz
Center 44 W (8 Ω)
Surround 25 W per ch (8 Ω)
Total power in stereo mode (10% THD)
(Front and Subwoofer) 186 W
Total power in Home Theater mode
© 2002 Matsushita Electronics (S) Pte. Ltd. All rights
reserved. Unauthorized copying and distribution is a
violation of law.
SA-DK20
Colour
(S)... Silver Type
Area
(P)... U.S.A.
(PC)... Canada
TAPE SECTION :
AR2 MECHANISM SERIES
CD SECTION :
RAE1181Z-S TRAVERSE DECK SERIES
(10% THD) 280 W
Input sensitivity
AUX 250 mV
Input Impedance
AUX 10 kΩ
■FM TUNER SECTION
Frequency range 87.9 - 107.9 MHz (200 kHz steps)
87.5 - 108.0 MHz (100 kHz steps)
Sensitivity 1.8 µV (IHF)
S/N 26 dB 1.5 µV
Antenna terminal(s) 75 Ω(unbalanced)
■AM TUNER SECTION
Frequency range 520 - 1710 kHz (10 kHz steps)
Sensitivity
S/N 20 dB (at 1000 kHz) 500 µV/m
■CASSETTE DECK SECTION
Track system 4 track, 2 channel
Heads
Record/playback Solid permalloy head
Erasure Double gap ferrite head
Motor DC servo motor
Recording system AC bias 100 kHz
Erasing system AC erase 100 kHz
Tape speed 4.8 cm/s (1 7/8 ips)
DVD Stereo System
Specifications
ORDER NO. MD0203054C1
A6

Frequency response (+3 dB, -6 dB at DECK OUT)
NORMAL (TYPE I) 35 Hz - 14 kHz
HIGH (TYPE II) 35 Hz - 14 kHz
S/N 50 dB (A weighted)
Wow and flutter 0.18 % (WRMS)
Fast forward and rewind time Approx. 120 seconds with
C-60 cassette tape
■Disc SECTION
Disc
DVD-Video
8 cm/12 cm single sided, single layer
8 cm/12 cm single sided, double layer
8 cm/12 cm double sided, double layer
(One layer per side)
Video CD/CD 8 cm/12 cm
Video
Signal system NTSC
Output level
Composite video 1Vp-p(75Ω)
S-Video Y 1Vp-p(75Ω)
S-Video C 0.286 Vp-p (75 Ω/NTSC)
Audio
Sampling frequency
CD 44.1 kHz
DVD 48kHz/96 kHz
Decoding 16/20/24 bit linear
Wow and flutter Below measurable limit
D/A converter Delta-sigma DAC)
1 Safety Precaution 3
2 Before Repair and Adjustment 3
3 Protection Circuitry 3
4 Accessories 4
5 Handling Precaution for Traverse Deck (Optical Pickup) 5
6 Operation Procedures 6
7 Precaution of Laser Diode 8
8 Self-Diagnostic Function 9
9 Disassembly and Main Component Replacement Procedures
17
Pick up
Beam source Semiconductor Laser
Wavelength
DVD 658 nm
VCD/CD 790 nm
■GENERAL
Power supply AC 120 V, 60Hz
Power consumption 161 W
Power consumption in standby mode
0.25 W
Dimensions (W x H x D) 215.4 X 315 X 350 mm
8 1/2” x 12 13/32” x 13 25/32”
Mass (7.8 kg) 17.2 lb
■SYSTEM
SC-DK20(P) Music Center: SA-DK20(P)
Front Speaker: SB-DK20(P)
Surround Speaker: SB-PT93(P1)
Sub woofer: SB-W20(P)
SC-DK20(PC) Music Center: SA-DK20(PC)
Front Speaker: SB-DK20(P)
Surround Speaker: SB-PT93(P1)
Sub woofer: SB-W20(P)
Notes:
1.Specifications are subject to change without notice. Mass and
dimensions are aproximate.
2.Total harmonic distortion is measured by the digital spectrum
analyzer.
10 Measurements and Adjustments 29
11 Illustration of ICs, Transistors and Diodes 31
12 Terminal Function of IC’s 32
13 Block Diagram 33
14 Schematic Diagram 42
15 Printed Circuit Board 72
16 Wiring Connection Diagram 85
17 Parts Location and Replacement Parts List 87
CONTENTS
Page Page
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(This “Safety Precaution” is applied only in U.S.A.)
1 Safety Precaution
1.Before servicing, unplug the power cord to prevent an electric shock.
2.When replacing parts, use only manufacturer’s recommended components for safety.
3.Check the condition of the power cord. Replace if wear or damage is evident.
4.After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5.Before returning the serviced equipment to the customer, be sure to make the following insulation resistance test to
prevent the customer from being exposed to a shock hazard.
1.1. Insulation Resistance Test
1.Unplug the power cord and short the two prongs of the plug with a jumper wire.
2.Turn on the power switch.
3.Measure the resistance value with ohmmeter between the jumper AC plug and each exposed metal cabinet part, such as
screwheads, antenna, control shafts, handle brackets, etc.
Equipment with antenna terminals should read between 3 MΩand 5.2 MΩto all exposed parts*.(Fig.1)
Equipment without antenna terminals should read approximately infinity to all exposed parts.(Fig.2)
*Note: Some exposed parts may be isolated from the chassis by design. These will read infinity.
4.If the measurement is outside the specified limits, there is a possibility of a shock hazard. The equipment should be repaired
and rechecked before it is returned to the customer.
2 Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C566~C569, C782 and C591 through a 10Ω, 5W resistor to ground.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
Current consumption at AC 120V, 60 Hz in NO SIGNAL mode should be ~650mA.
3 Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
• No sound is heard when the power is turned on.
• Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
“shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1.Turn off the power.
2.Determine the cause of the problem and correct it.
3.Turn on the power once again after one minute.
Note :
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
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4 Accessories
Remote Control
Transmitter
FM indoor antenna
AC mains lead
AM Loop antenna
Video cable
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5 Handling Precaution for Traverse Deck (Optical Pickup)
The laser diode in the traverse unit (optical pickup) may break down due to static electricity of clothes or human body.
Use due caution to electrostatic breakdown when servicing and handling the laser diode.
5.1. Grounding for electrostatic breakdown prevention
Some devices such as the DVD player use the optical pickup (laser diode) and the optical pickup will be damaged by static
electricity in the working environment. Proceed servicing works under the working environment where grounding works is
completed.
5.1.1. Workable grounding
1.Put a conductive materials (sheet) or iron sheet on the area where the optical pickup is placed, and ground the sheet.
5.1.2. Human body grounding
1.Use the anti-static wrist strap to discharge the static electricity from your body.
5.1.3. Handling of optical pickup
1.To keep the good quality of the optical pickup maintenance parts during transportation and before installatio,. the both ends of
the laser diode are short-circuited. After replacing the parts with new ones, remove the short circuit according to the correct
procedure. (See this Technical Guide.)
2.Do not use a tester to check the laser diode for the optical pickup. Failure to do so will damage the laser diode due to the power
supply in the tester.
5.2. Handling Precautions for Traverse Unit (Optical Pickup)
1.Do not give a considerable shock to the traverse unit (optical pickup) as it has an extremely high-precise structure.
2.When replacing the optical pickup, install the flexible cable and cut its short land with a nipper. See the optical pickup
replacement procedure in this Technical Guide. Before replacing the traverse unit, remove the short pin for preventingstatic
electricity and install a new unit. Connect the connector as short times as possible.
3.The flexible cable may be cut off if an excessive force is applied to it. Use caution when handling the cable.
4.The half-fixed resistor for laser power adjustment cannot be adjusted. Do not turn the resistor.
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6 Operation Procedures
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7
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7 Precaution of Laser Diode
CAUTION :
This unit utilizes a class 1 laser.
Invisible laser radiation is emitted from the optical pickup lens.
When the unit is turned on :
1.Do not look directly into the pick up lens.
2.Do not use optical instruments to look at the pick up lens.
3.Do not adjust the preset variable resistor on the pickup lens.
4.Do not disassemble the optical pick up unit.
5.If the optical pick up is replaced, use the manufacturer’s specified replacement pick up only.
6.Use of control or adjustments or performance of procedures other than those specified herein may result in hazardous
radiation exposure.
CAUTION!
THIS PRODUCT UTILIZES A LASER.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT
IN HAZARDOUS RADIATION EXPOSURE.
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SA-DK20

8 Self-Diagnostic Function
8.1. Outline
• Self-Diagnosis of error conditions on user equipment according to conditions set by the head office.
• Occurance of an error condition and results of operations that occured after entering self-diagnostic mode are displayed via the
front (FL) display panel.
8.1.1. Outline of Functions
Selector Complex Operation Front Panel Display (Mode-in) Next Operation Test Content
DVD/CD Main unit [STOP]
Main unit [>>] Y_____________ [OPEN/CLOSE] Changer mechanism operation; Self-Diagnostic code acquisition
[STOP] Single press Display self-diagnostic code
[STOP] Long press Clear recorded content of error conditions
Remote Control [5] Changer mechanism continuous operation test
DVD/CD Main unit [STOP]
Remote Control [0] None Display DVD module self-diagnostic (Display error code)
Main unit [STOP]
Other
Remote Control button
Remote control [5] [6] [7] [9] [>=10] →[0].
[>=10] →[ENTER] [PAUSE] [DISPLAY] etc.
Special commands for DVD module
Tuner Main unit [STOP]
Main unit [>>] Button check display All buttons Button check, blink all front display panel lights
DVD/CD Main unit [STOP]
Main unit [>>] T______________ [PAUSE] Display analog device (AD) input value [ FF FF FF FF FF ]
Front display panel (from left) [AN0] [AN1]
[AN2] [AN3] [AN4]
Cautions:
Self-diagnostics displayed via the [STOP] key display all recorded self-diagnostic codes.
8.2. Self-Diagnostic Mode Settings and Display
1.Power-source related
* Example display
* Self-Diagnostic Codes
No. Error Display Error Item Detection Method
1F61 Power Amp output error or power supply circuit error When DCDET is L during normal operation do not
POWER OFF normally, immediately set PCNT to
L “GOODBYE” display and display F61 error.Do
not start demonstrations while error F61 is being
displayed.Record content of error occurance and
display content in error detection mode.
2.CD/DVD Changer Mechanism (CR20)
Step Operating Procedure Micro-controller operation, processing, etc.
1Switch the SELECTOR to CD/DVD, close tray without disk
2Press the [FF] button while holding down the [STOP]
button for two seconds or more. Self-diagnostic mode is
entered when the [STOP] button is released.
Self-diagnostic mode will not be entered if there is a disk in the tray.
3[T ] is displayed by the front display (FL) panel when
entering self-diagnostic mode.
4 Press the [OPEN/CLOSE] button. Operations below wil be continued. While operations are in progress
buttons relating to the micro-controller will be ignored.
a.Change disc 1 and open the tray.
b.Close the tray 1 second after opening.
c.Initialize the mechanism.
d.Insert disc 5 in the play position and quit.
5Confirm recorded error content by pressing the [STOP]
button while stopped in the self-diagnostic mode and
displaying the results of the error check.
Each time the [STOP] button is pressed error item codes are
displayed in sequence on the front display panel Example of a DVD
module content display: [_DVD_H05_ _]Example of a normal self
diagnostic code display: [T_ _ _H02_ _]
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Step Operating Procedure Micro-controller operation, processing, etc.
6Clear recorded error content by pressing the [STOP]
button for 5 seconds or more while stopped in the self-
diagnostic mode.
Recorded error content is cleared and the following is shown on the
front display panel:[CLEAR] is displayed for one second followed by
areturnto[T_______]
7Cancel self-diagnostic mode by pressing the [POWER]
button. Power is turned off. At the next power on normal operation will resume.
* If an error occurs while checking the RAM during a micro-controller reset all recorded error detection content will be cleared
while initializing the RAM.
* By skipping step 4 of the above procedure and moving directly to step 6 it is possible to just display the self-diagnostic codes.
* Example display
* Self-Diagnostic Codes
No. Error Display Error Item Detection Method
1H15 OPEN SW error If there is a failsafe for a SW error that occurs during normal
operation it will be recorded and displayed in self-diagnostic
mode.
2H16 CLOSE SW error SW errors will be detected even in error detection mode.
3H16 UP SW error
4H17 DOWN SW error
5H27 POSITION SW error
7F28 DISC mount error
8F29 DISC unmount error
* While stopped in conditions 3 or higher above it is possible to start a CR20 continuous test. Described in detail seperately.
3.Analog Device (AD) input value display
* Pressing the [PAUSE] button on the main unit after having entered self-diagnostic mode through SELECTOR [DVD/CD] will
show the analog device conversion input value on the front display panel.
* Each time the button is pressed the value will be read again and the display refreshed.
* Front display Panel:
AD Input Usage
AN 0 Key 1 input : Key input 1
AN 1 Key 2 input : Key input 2
AN 2 Key 3 input : Key input 3
AN 3 MK_IN1 : DECK input 1
AN 4 MK_IN2 : DECK input 2
• Exit the Analog Device input value display mode by cutting off the AC power source and next time could start the device.
4.DVD/CD module
Step Operating Procedure Micro-controller operation, processing, etc.
1Set the SELECTOR to CD/DVD
2While pressing the [STOP] button on the main unit press
[0] button on the remote control See the “DVD/CD/ Changer Control” section of “Error Display” for a detailed explanation.
* Since error detection for the DVD/CD module occurs in the system component and is sent through the mechanism component
codes are received and displayed at the operating console.
* Since self-diagnostic codes for the DVD/CD module duplicate prior audio codes the self-diagnostic codes are displayed
prefixed by “DVD”.
* Self-Diagnostic Codes
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No. Error Display Error Explanation Cause (IC number, etc.)
1F010 Specified value is larger than the specified parental
value. Disk →IC7001
2F020 No TT_SRPT (RLBN is 0) Disk →IC7001
3F021 TT_SRP number is 0 Disk →IC7001
4F022 Specified value is larger than the TT_SRP number Disk →IC7001
5F023 No matching SRP for VTSN or VTS_TTN Disk →IC7001
6F024 Specified value is larger than TT_SRP.PTT_Ns Disk →IC7001
7F030 TTU_SRP number is 0 Disk →IC7001
8F031 Specified value is larger than TTU_SRP number Disk →IC7001
9F040 SRP1 number is 0 Disk →IC7001
10 F041 PGCI_SRP number is 0 Disk →IC7001
11 F042 Specified value is larger than the PGCI_SRP
number Disk →IC7001
12 F043 No matching PGCI_SRP for this Menu ID Disk →IC7001
13 F050 TMAP_SRP number is 0 Disk →IC7001
14 F051 Specified value is larger than the TMAP_SRP
number Disk →IC7001
15 F052 Specified TMAP_SA is 0 Disk →IC7001
16 F053 MAP_EN number is 0 Disk →IC7001
17 F060 C_POSIT exists, but there is no PGMAP in the PGC Disk →IC7001
18 F061 C_POSIT exists, but the PG number in the PGC is
0Disk →IC7001
19 F062 Specified value is larger than the PG number in the
PGC Disk →IC7001
20 F063 C_POSIT exists, but there is no C_PBIT in the PGC Disk →IC7001
21 F064 C_POSIT exists, but the PG number in the PGC is
0Disk →IC7001
22 F065 Specified Cell number is 0 Disk →IC7001
23 F066 Specified value is larger than the Cell number in the
PGC Disk →IC7001
24 F067 Must be a block array Disk →IC7001
25 F070 Is not NV_PCK data Disk →IC7001
26 FOB0 No Cell number for current search Disk →IC7001
27 F0E0 No user guide PGC control file for DFD, cannot
resolve
28 F0E1 DFD main micro-controller type not compatible,
cannot download
29 F0E2 DFD download start; PGC playback error
30 F0E3 Waiting for DFD download completion; PGC
playback error
31 F0E4 AVDEC during DFD download
32 F0E5 Firmware file read error during DFD download
33 F0E6 Interpolation check error in read-in DFD firmware
34 F0F0 No firmware file for DFD; download unnecessary
35 F0F1 No firmware matching the DFD download
parameters; download unnecessary
36 F103 Illegal Highlight Position Disk →IC7001
37 F4FF No ACK when requesting forced initialization of
panel component Panel Component →IC6001
38 F500 DSC Error IC2001
39 F501 DSC Not Ready Error IC2001
40 F502 DSC Time Out Error IC2001
41 F503 DSC Communication Failure IC2001
42 F504 Error adjusting DSC data slice offset IC2001
43 F505 DSC Attention Error IC2001
44 F506 Can’t determine media type (invalid media type) IC2001
45 F600 Can’t access administrative data due to
demodulation error IC7001
46 F601 Undefined sector ID requested IC7001
47 F602 Can’t access LEAD_IN data due to demodulation
error IC7001
48 F603 Can’t access KEY_DET due to demodulation error IC7001
49 F610 Can’t control ODC IC7001
50 F611 No CRCOK within the set time period (CD related) IC7001
51 F612 No CRCOK within the set time period (DVD related) IC7001
52 F620 Laser safeguard: high temperature condition
53 F621 Laser safeguard: circuit failure condition
54 F700 MBX Overflow System component bug →IC6201
55 F701 Message Command Not Complete Error System component bug →IC6201
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No. Error Display Error Explanation Cause (IC number, etc.)
56 F702 Message Command Changed System component bug →IC6201
57 F880 Task number not relevant System component bug →IC6201
58 F890 Attempted to send message while sending to an AV
task (mailbox overflow, etc.) System component bug →IC6201
59 F891 Couldn’t send message to AV task (mailbox
overflow, etc.) System component bug →IC6201
60 F8A0 Message command is not relevant System component bug →IC6201
61 F893 Flash ROM is interpolated IC6302
62 F894 EEPROM is not normal IC6303
No. Error Display Error Explanation Cause (IC number,etc.)
1U11 Focus servo error
2H01 Tray loading error
3H02 Spindle server error
DSC disc motor error
6626 CLVS FAILURE
4H03 Traverse motor error
5H04 Tracking server error
6H05 SEEK timeout error
8.3. Additional Functions
8.3.1. Tray Lock Function
• There are two tray lock functions
• Power on through the SELECTOR /DVD/CD. While holding down the [CD STOP] button on the main unit press the [POWER]
button on the main unit or the remote control. Lock Mode A will be entered, [_ _ _ _LOCKED_ _] will be displayed for 3 seconds,
and the current disc will begin playing.
• Lock Mode A will disable the button below while turning the power on or off.
[OPEN/CLOSE]
• When locked in Lock Mode A pressing the [POWER] button on the main unit or the remote control while holding down the [CD
STOP] button on the main unit will display [_ _UNLOCKED_ _] and unlock the unit.
• Power on through the SELECTOR DVD/CD. While holding down the [CD PLAY] button on the main unit press the [POWER]
button on the main unit or the remote control. Lock Mode B will be entered, [_ _ _LOCKED_ _] will be displayed for 3 seconds,
and the current disc will begin playing.
• In Lock Mode B the button below, mainly selector and disc operation related items, will be disabled.
Main Unit: [DISC 1] ~ [DISC 5] [OPEN/CLOSE] [DISPLAY/DEMO] [CLOCK/TIMER] [T.PLAY/REC] [SELECTOR] [STOP]
[TUNER/BAND] [TAPE < >] [I<</<<] [>>/>>I] [PAUSE] [TAPE EJECT] [REV MODE] [REC/STOP]
Remote Control: [SLEEP] [AUTO OFF] [DIMMER] [MIX 2ch] [MUTING] [0] ~ [9] [>=10] [DISC]
[RETURN] [DISPLAY] [TEST] [CH SELECT] [TUNER/BAND] [TAPE < >] [SELECTOR] [REPEAT]
[MARKER] [STOP] [PAUSE] [I<<] [>>I] [<<] [>>]
[KARAOKE ON/OFF] [KARAOKE DISP] [KARAOKE MODE] [ONE TOUCH] [ECHO]
[KEYCON b] [KEYCON #] [MIC -] [MIC +] [SETUP]
While playing it is not necessary to re-disable buttons disabled under Lock Mode B.
Also, button related to sound quality are not disabled. The buttons below are not disabled.
Main Unit: [POWER] [CD MANAGER] [AMAZING] [DVD/CD] [CINEMA] [DPL] [SSS]
Remote Control: [POWER] [SET UP] [PLAY MODE] [CLEAR] [EQ] [3D AI] [SUPER W] [VOL -] [VOL +]
[DVD/CD >] [MENU] [TOP MENU] [<] [>] [^] [v] [ENTER]
[SUB TITLE] [AUDIO] [ANGLE]
• When locked in Lock Mode B pressing the [POWER] button on the main unit or the remote control while holding down the [CD
PLAY] button on the main unit will unlock the unit after displaying [_ _UNLOCKED_ _] for 3 seconds.
• Tray lock is canceled when AC power is cut.
• Tray lock A and B functions are exclusive operations. The first one enabled will have priority.
• When a disabled button is pressed while in lock mode [_ _ _LOCKED_ _] will be displayed for 3 seconds on the front display
panel.
• Lock mode will be cancelled when a loading error occurs with the CR20.
(If the [OPEN/CLOSE] button were disabled when the tray is opened by a TAKE OUT DISC error recovery would be impossible)
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8.3.2. Special Commands for the DVD Module
• When the SELECTOR is set to DVD/CD the commands for the operations below will be sent to the mechanism component
micro-controller.
• The mechanism component micro-controller relays these commands without alteration to the DVD module.
• THe DVD module sends data resulting from commands to the mechanism component, where they are then relayed to the
operating console.
• Data received from the DVD module by the operating console is displayed by the right 10 digits.
• Command Table
Special Operation Command Operation/Display Release/Remarks
Jitter Display
(servo test mode) B5 Main Unit [STOP] + Remote Control [5] xxx: jitter measurement (DEC)
[xxx_yyy_zz] yyy:read error counter (DEC)
zz: focus drive measurement (HEX)
Test string from DVD MODULE :[J_xxx_yyy_zz]
Send STOP command from operating
console
Region Display
(location display) B6 Main Unit [STOP] + Remote Control [6] w: region number
[_ _w_xy_zzz] x: N noPAL P PAL
y: N NTSC 6 PAL60
zzz: panel component jumper data
Text string from DVD MODULE: [_ _w_xy_zzz]
5 seconds after activation the text string
from the DVD MODULE dissappears and
display is automatically turned off.
Version Display B7 Main Unit [STOP] = Remote Control [7]
s: panel component mode type
[srrrxxyzzz] rrr: panel component release number
[_ _ _xxyzzz] x: generation of system component (45)
y: system component model type
zzz: system component release number
Text string from DVD MODULE: [srrr_ _xxyzzz]
srrr will be blank with mini-components
5 seconds after activation the text string
from the DVD MODULE dissappears and
display is automatically turned off.
Error Code Display BA +
request
record
number
Main Unit [STOP] + Remote Control [0]
[__DVD_Fxxx] xxx: error number
[__DVD_Uxxx]
[__DVD_Hxxx]
5 seconds after activation the text string
from the DVD MODULE dissappears and
display is automatically turned off.
Laser Current
Initial measurement
(saved laser power
value)
C2 Main Unit [STOP] + Remote Control [PAUSE]
[DO_034_028] 034: DVD current measurement (mA) (DEC)
028: CD current measurement (mA) (DEC)
Text string from DVD MODULE: [LDO_034_028]
DVD Laser
Current
Measurement
C3 Main Unit [STOP] + Remote Control [DISPLAY]
034: saved in EEPROM
[DD_034_032] initial current mearement (mA) (DEC)
032: present current measurement (mA) (DEC)
Text string from DVD MODULE: [LDD_034_032]
Laser lighting remains on until POWER
OFF of the tray opens.
ADSC
Internal RAM
Display A
C4 Main Unit [STOP] + Remote Control [1]
[A_0FA_6901] 0FA: address (HEX)
6901: RAM value of display address (HEX)
STOP command is sent from the
operating console to the DVD MODULE
ADSC
Internal RAM
Display B
C5 Main Unit [STOP] + Remote Control [2]
[A_0FA_6901] 0FA: address (HEX)
6901: RAM value of display address (HEX)
STOP command is sent from the
operating console to the DVD MODULE
kink measurement
(invalid pick
detection)
C6 Main Unit [STOP] + Remote Control [9]
[FK_109_101] 109: maximum value of calculated value (DEC)
101 : ratio of maximum value to minimum value
[FK_ER_9101] ER: display error occurance
9101: ADSC command error code
STOP command is sent from the
operating console to the DVD MODULE
User Initialization
(For users) BC+ Model Table
+0x00
Main Unit [STOP] + Remote Control [>=10]
[INITIALIZED] display on the operating console for 2 seconds.
When display clears the user initialization commands is output
the system component.
Returns user settings to factory values.
When the [INITIALIZED] on the front
panel dissappears the operation is
complete.
to GUI is INITIALIZE.
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Special Operation Command Operation/Display Release/Remarks
All Reset
(for design service) BC+ Model Table
+0x3C
While [INITIALIZED] is being displayed from the user
initialization operation press [STOP] on the main unit and
[ENTER] on the remote control.
[_DVD_RESET] is displayed on the operating console and the
all reset command is output instead of the user initialization
command.
Returns user settings to factory values.
Panel component jumpers are referenced, and the appropriate
model number’s initialization values are written to the
EEPROM and global region.
Laser times and spindle times are not initialized.
If NO DISC or ---READ can be confirmed
after DVD RESET is displayed on the
front display panel the operation is
completed.
No GUI. All items temporarily
dissappear.
All set
(for industrial
production)
F1 Receipt of remote control code [B0 00 F1].
Also, Main Unit [STOP] + Remote Control [1DDF]
[_ALL_SET] (display text string from system component).
Returns user settings to factory values.
Panel component jumpers are referenced, and the appropriate
model number’s initialization values are written to the
EEPROM and the global region.
Laser times and spinlde times are also initialized.
If NO DISC or ---READ can be confirmed
after ALL SET is displayed on the front
display panel the operation is completed.
ALL SET is displayed on the front
displaye panel the operation is
completed.
GUI is ALL SET.
Device Name
Display B1+ 0x13 Main Unit [STOP] + Remote Control [4] [FEP_??????] [SRV_??????] [ODC_??????]
[Av_??????] [SYS_??????]
Display cycles every 3 seconds. Display
automatically turns off after the last
device name is displayed.
Laser Time Use B1+
0x14 Main Unit [STOP] + Remote Control [^] 1234 : DVD laser use time
[_1234_5678] 5678: CD laser use time
10 hour units displayed in 4 digits
Text string from DVD MODULE: [T1_1234_5678]
5 seconds after activation the text string
from the DVD MODULE dissappear and
display is automatically turned off.
Reset Laser Time
Use B2 + 0x14 While use time is being displayed press Main Unit [STOP] + Remote Control [V]
[_0000_0000]
DVD and CD are both reset at the same time.
5 seconds after activation the text string
from the DVD MODULE dissappear and
display is automatically turned off.
Spindle Use Time B1 +
0x15 Main Unit [STOP] + Remote Control [>] [___T2_1234] 1234: 10 hour units displayed in 4 digits
Text string from DVD MODULE: [T2_1234_____]
5 seconds after activation the text string
from the DVD MODULE dissappear and
display is automatically turned off.
Reset Spindle Use
Time B2 +
0x15 While use time is being displayed press Main Unit [STOP] + Remote Control [<]
[___T2_0000]
5 seconds after activation the text string
from the DVD MODULE dissappear and
display is automatically turned off.
CD Laser Current
Measurement B1 +
0x92 Main Unit [STOP] + Remote Control [3] 028: initial current value
[DC_028_026] stored in EEPROM (mA)
026: Present current value (mA)
Text string from DVD MODULE: [LDG_028_026]
Laser lighting continues until POWER
OFF or the tray opens.
Region and
Firmware Version
Display
BF +
0x92 Main Unit [STOP] + Remote Control [8] r: region number
[__r__xyzzz] x: generation of system component
y: system component model type
zzz: system component model type
Text string from DVD MODULE: [____r__xyzzz]
5 seconds after activation the text string
from the DVD MODULE dissappear and
display is automatically turned off.
8.3.3. Jitter Offset Correction
• The jitter offset correction function below is necessary for D5, but is not necessary for D8.
• While displaying K objects,certain remote control operations correct the offset of the DVD MODULE jitter value.
• When the DVD module firmware rewriting connector is inserted K objects will be displayed [KC 00 0000].
• Key codes of input from the remote control’s ten key while displaying K objects are relayed to the system component by the
operating console.
• Inputting [2] [0] from the remote control returns a 14 hex value from the system component. The value is converted from hex
→dec and displayed as [KC 20 0000].
• Continuously pressing the [PLAY] button returns the offset result as a text string from the system component, which is displayed
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8.4.3. CHECK SUM Display
as [KC 20 0002].
• The DVD Module has functions that support buttons other than [2] [0] [PLAY], so when K objects are being displayed key codes
are as below.
[0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [>=10] [PLAY]
8.4. Pseudo ROM Correction
8.4.1. Outline
• Since the Mitsubishi M3819 series micro-controller is capable of making programs operate in RAM the pseudo ROM corrections
below are possible.
• Program the process calling the modifying sub-routine in advance.
• Program the process to read-out the program from the EEPROM into RAM in advance.
• Processes previous to the read-out cannot be modified.
• In pseudo ROM corrections defective processses cannot be completely bypassed.
8.4.2. EERPOM Flag Indicator Interpretation
• Regardless of the EEPROM flag indicator CS/CLK/DATA is output and the DATA read-in process occurs.
Accordingly, even if there is no EEPROM hardware processing at the terminal is necessary.
• If the data read-out below is valid then an EEPROM will be determined to be present, and the modifying program will be read-
out.
− When the MASK ROM file name (8 character ASCII code, 8 bytes) and the EEPROM file name match.
− When the modifying points flag indicator data (8 points, 1 byte) written at two places on the EEPROM match.
• In order to confirm that the EEPROM is loaded, the operations below display the CHECK SUMs for the Operating Console,
mechanism component, and DSP micro-controller EEPROMs.
• Receiving [1DDF or 1CDF] when in Process Check Mode with Process Check Mode-in [1DDF or 1 CDF] will display the
operating console’s version and EEPROM CHECK SUM.
• If [1DDF or 1CDF] are received while the operating console’s version and EEPROM CHECK SUM are being displayed the
mechanism component’s version and EEPROM CHECK SUM are displayed.
• If [1DDF or 1CDF] are received while the mechanism component’s version and EEPROM CHECK SUM are being displayed the
DSP micro-controller’s version and EEPROM CHECK SUM are displayed.
• If a valid remote control code is received while the CHECK SUM is being displayed the CHECK SUM display will be erased to
confirm with that operation and display.
• When the result of referencing the EEPROM is a differing file name [NO] will be displayed, just as when no EEPROM is present.
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8.4.4. Insertion Points for ROM Correction Processing
• Processing read-outs from EEPROM
− RCaccE2PrSUB: Insert after port or control register setting (AC check).
It is also necessary for the EEPROM’s power supply to be in power-off (AC positive).
• Processing Modifying Program Calls
− RCtimerinsSUB: Insert at the end of the timer interrupt.
− RCschedulerSUB: Insert in the OS scheduler.
− RCinitialSUB: Insert after initialization, immediately before jumping to the main process.
− RCstandbySUB: Insert immediately before the power failure process STP command.
− RCimagetskSUB: Insert immediately before branching to individual image processing.
− RCdisptskSUB: Insert immediately before processing the data settings for the display RAM.
− Rcreserve0SUB: Insert in the transmission process to the CD mechanism component.
− Rcreserve1SUB: Insert in the transmission process to the DSP control micro-controller.
• Data inside the EPROM (Required RAM capacity)
− EEPROM flag indicator determination data: 10 bytes
− Modifying Program’s starting address: 16 bytes
− Modifying Program: remaining bytes
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Some chassis components may have sharp edges.
Be careful when disassembling and servicing.
• Main Component Replacement Procedures
9 Disassembly and Main Component Replacement
Procedures
“ATTENTION SERVICER”
1.This section describes procedures for checking the operation of the major printed circuit boards and replacing the
main components.
2.For reassembly after operation checks or replacement, reverse the respective procedures.
Special reassembly procedures are described only when required.
3.Select items from the following index when checks or replacement are required.
Contents
• Checking Procedure For Each Major P.C.B.
1.Checking of the Main and DVD F/E Module (1/2) and (2/2) P.C.B.
2.Disassembly for DVD/CD cahnger unit
3.Disassembly Procedure for the each major P.C.B. checking
1.Replacement of the Traverse Deck.
2.Replacement of the Power Amplifier IC.
• Disassembly and assembly of the Traverse Unit
• Disassembly and assembly of the Disc Tray
Warning:
This product uses a laser diode. Refer to caution statement Precaution of Laser Diode.
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Step 1 Remove 3 screws each both side and 5 screws at rear
panel.
Step 2 Lift up the both sides cabinet ass’y to release the hook
(A). Then pull the cabinet ass’y toward the rear and release the
hook (B) to remove the cabinet ass’y.
NOTE: When installing the cabinet ass’y, take care not to
damage the front cabinet ass’y from hook (B).
• Check the Main P.C.B. and DVD F/E Module (1/2) P.C.B..
Step 3 Remove 4 screws.
Step 4 Remove 4 connectors.
Step 5 Pull out 4 FFCs.
• Checking the DVD F/E Module (2/2) P.C.B. as shown
below.
Step 7 Disconnect the FFCs to the connector.
Step 8 Lift up DVD F/E Module (2/2) P.C.B. as shown.
9.1. Checking for the Main and DVD F/E Module (1/2) and (2/2) P.C.B.
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9.2.1. Disassembly for the disc tray
ornament
• Follow the (Step 1) - (Step 3) of item 8.1
When opening the disc tray automatically
Step 1 Connect the power.
Step 2 Push the button and the power turns ON.
Step 3 Push the open/close button, so the disc tray will be
open automatically. (If the other buttons would be push, disc
tray would be open.)
Step 4 Disconnect the power.
Step 5 Release the 2 claws, and then remove the disc tray
ornament.
Step 6 Connect the power again.
Step 7 Push the button and the power turns ON.
Step 8 Push the open/close button1, so the disc tray will be
close.
When opening the disc tray manually
Step 1 Upset the unit.
Step 2 Insert the gear for servicing into the bottom hole of
mechanism unit cover, and then rotate the hexagonal wrench
clockwise so the disc tray will be open.
9.2. Disassembly for DVD/CD changer unit
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Step 3 Release 2 claws, and then remove the disc tray
ornament.
Step 4 Push the disc tray.
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