Pioneer XV-BD212 BLU-RAY HTS Troubleshooting, Reset function, Software upgrade, Circuit diagram

 PIONEER XV-BD212 BLU-RAY Home Cinema System

HOW TO USE THE SA RESET FUNCTION

 SA RESET PURPOSE
1) If we change system, we should do SA adjustment to get better performance of BD disc.
2) This is the operation to locate collimator lens of pick-up at the exact point.
3) We use this value to playback the BD disc after we store into the flash memory.
REQUIRED SA RESET
1) After changing Traverse.
2) After changing Main Board Assembly.
3) After changing Main Board Flash IC.

SA RESET PROCEDURE

SOFTWARE UPGRADE
Burn a DVD recordable disc or USB with a file that is named to ‘PIONEER_HB_6200B33.ROM’.
Insert a upgrading disc or USB.
Show help message for disc upgrade as follows.
< in the case of Back End program & Front End program >

Press enter key to upgrade and it will show progress information.
Do not turn off the power during firmware update.  After completing upgrade then power is off.

Troubleshooting

When you turn on your set, it will display “PLEASE WAIT” on front panel, and it will not boot-up normally.

IC500 (MPEG IC)
Solution
Replace IC500 on MAIN board.
How to troubleshoot (Countermeasure)
1) Please Check 1.2 V.
Please Check 3.3 V.
Please Check 1.5 V.
Please Check RESET.
Please check the frequency of 27 MHz crystal (X500).
2) If it doesn’t work even though 1.2 V, 1.5 V, 3.3 V power and RESET are no problem, IC500 BCM7633 could have problem.
3) If RESET isn’t high, you may need to replace IC101.
4) After changing it, if the set is still no booting, check main board.

MAIN Board
Solution
Replace MAIN board.
How to troubleshoot (Countermeasure)
1) Please remove IC500, IC502, IC503, and then check the Impedance between each signal (DATA, ADDRESS, and so on.).
2) If there is some Impedance (a few Ω or infinite Ω) especially power source trace, PCB via might be broken. You’d better change main board.

WIRED NETWORK CONNECTION ERROR
When you connect Accu Weahter, You-tube or Picasa through the wired LAN, the “no connection“ message appears.

JK250
Solution
Replace JK250 on MAIN board.
How to troubleshoot (Countermeasure)
1) Check you internet connection. Make sure it connect properly to modem or router.
2) If internet connection OK, please check the ethernet jack (JK250).
3) If there is soldering problem, please re-soldering pin JK250.
4) If after re-soldering problem still occurs, replace JK250.
5) If problem still occurs after change JK250, check BCM7633 IC (IC500).

BAD HDMI VIDEO / AUDIO OUTPUT
When unit is connected to HDMI TV using HDMI cable, picture shows bad color, no output or mixed color on the screen. But component output is OK.

JK803
Solution
Replace JK803 (HDMI Jack).
How to troubleshoot (Countermeasure)
1) Check JK803 pin soldering.
2) If there is short soldering on pin JK803, re-soldering pin JK803.
3) If problem still occurs, check CF809 ~ CF812, R831 ~ R838:
If issue still NG, replace IC801.

BAD HDMI VIDEO / AUDIO INPUT
When unit is connected to HDMI IN(1 or 2) using HDMI cable, picture shows bad color, no output or mixed color on the screen.

JK801 & JK802
Solution
Replace JK801 or JK802 (HDMI Jack).
How to troubleshoot (Countermeasure)
1) Check JK801 or JK802 pin soldering.
2) If there is short soldering on pin JK801 or JK802, re-soldering pin JK801 or JK802.
3) If problem still occurs, check R814 ~ R829:
If issue still NG, replace IC801.

SMPS [Power supply] schematic diagram

Main MICOM circuit diagram

Main power schematic diagram

Amplifier schematic diagram

CIRCUIT VOLTAGE CHART

COMPONENT REPAIR

ABNORMAL MD OPERATION
Abnormal disc reading or abnormal tray open/close.
Replace new MD and test if it is operated normally.
Component
1) Traverse assembly
2) FFC cable from MAIN board to MD
How to troubleshoot (Countermeasure)
1) Check the connection between main board and FFC cable,
2) Confirm the connection point.
3) If all the cable connections are normal, replace the traverse assembly.

Service hint (Any picture / Remark)
After changing MD(Traverse assembly), you must perform "SA Reset".
Refer to the next chapter "How to use the SA reset function".

"ALL BD DISC" READING ERROR
All the Blu-ray disc is not operated, but DVD and CD are operated normally.
If the LDO for APC of BD laser diode is abnormal, BD doesn't work.
If the LD current control is abnormal, BD doesn't work.
Component
1) MD (Traverse Assembly)
2) SIC707 – Adjustable LDO
How to troubleshoot (Countermeasure)
1) Check MD (Traverse, pick-up) first of all
2) Check input/output voltage of LDO SIC707 – (12 V, 8.1 V)
3) If output voltage is abnormal, check the periphery of SIC707 and replace it.
4) Check the BD LD Control input/output.
If input signal (LTHR) is ok, but no output (LDI_BD), check the TR SQ714, SQ716

"ALL DVD DISC" READING ERROR
All the DVD disc is not operated, but BD and CD are operated normally.
If the LD current control is abnormal, DVD doesn't work.
Component
1) MD (Traverse Assembly)
2) SQ712, SQ717
How to troubleshoot (Countermeasure)
1) Check MD (Traverse, pick-up) first of all.
2) Check the DVD LD Control input/output.
If input signal (LDEL0) is ok, but no output (LDI_DVD), check the TR SQ712, SQ717.

"ALL CD DISC" READING ERROR
- All the CD disc is not operated, but BD and DVD are operated normally.
- If the LD current control is abnormal, CD doesn't work.
Component
1) MD (Traverse Assembly)
2) SQ713, SQ715
How to troubleshoot (Countermeasure)
1) Check MD (Traverse, pick-up) first of all.
2) Check the CD LD Control input/output.
If input signal (LDEL1) is ok, but no output (LDI_CD), check the TR SQ713, SQ715.

ABNORMAL SERVO OPERATION
The actuator, spindle and sled operation of pick-up are abnormal.
After changing MD, the motors are abnormal operations.
After changing Motor Drive IC, the motors are abnormal operations.
Component
1) MD (Traverse Assembly)
2) SIC706 – AZ4580MTR-E1
How to troubleshoot (Countermeasure)
1) Check if the input/output voltage of SIC706 (pin5 and pin7) is 1.65 V.

TCL C48P1FS-How to enter the service mode, service adjustments, audio output and power (SMPS) schematic – TCL 48 inch Curved LED TV

 

C48P1FS-MT56CT-AP – TCL 48 inch Curved LED TV – service mode – service adjustments – software upgrade – audio output and SMPS circuit diagram

MT56-AP chassis are designed for Asia & Pacific (AP) market Ready for Smart TV. It features by its high integration, easy debugging (ADC adjustment free) as well as convenience in terms of maintenance. Fast software upgrade through USB disk facilitates both manufacture and after-sale service.

Note: Factory Main Menu (FMM) is divided into Factory menu and Design menu. Factory Menu covers all indispensable functions during manufacture such as White Balance Adjustment, SHOP etc., while Design Menu includes Service Menu, Hotel Menu, Param
Setting, Other Setting etc. Some settings like Param Setting and Other Setting is exclusively used by R&D engineer, anyone else shouldn’t change the settings in the menu. When you wish to learn the product information like project ID, project name, Hardware, software version, release date, you can access to Service Menu. In addition, in Hotel Menu,  also provide a great deal of useful functions for specific applications in hotel.

The main chip is from REALTEK and supports below features matrix:

Factory Test & Alignment Specification For MT56-AP Series (V1.0)

The software boot for U702 can be programed by Flash Tool.exe.
Every set has its unique HDCP key which is purchased from suppliers or HDCP certification authority. Please check HDCP function in the process of production.
Once in a while, the software of main board may be upgraded. Please pay attention to use the latest software before production.

Factory Menu
Factory Menu is mainly used for factory production and satisfies various demands of customers. It covers all indispensable functions during manufacture such as Warm up, White Balance, Shop, NVM Reset, Power on mode, USB Clone etc.

Accessing Way
a. When the Factory hotkey item of Factory Menu is disabled (OFF), press Menu button of remote control, then select Settings/Picture, make sure the cursor stop on Contrast item submenu. Finally, press 9, 7, 3, 5 consecutively.
b. When the Factory hotkey item of Factory Menu is enabled (ON, you can see the flashing Factory Captions Info on the lower left corner), press Back button of remote control.
Press RCU “OK” key to enter the submenu.
Press RCU “Right” or “Left” key to change the values.
Press RCU “Right” or “Left” key run the function.
Press RCU “Back” or “Menu” key exit the Factory menu.
Factory Captions Info:
While “FactoryKey” is enabled, there is some toggled display information relative to MV, SV, ID, MID, to facilitate 100% quick screening without accessing to whatever else menu:

P (Production/Factory mode flag)
MV (Mboot SW Version)
SV (Main SW Version)
ID (Project ID)
MEMC

Factory menu

White Balance Menu
Press the button on remote control to select certain item and OK to adjust White Balance.

Design Menu includes Factory Menu, other, Service Menu, Param Setting, Hotel Menu.
Some settings like Param Setting and Other Menu is exclusively used by R&D engineer, anyone else shouldn’t change the settings in the menu. When you wish to learn the product information like project ID, project name, chassis name, software version, release date, you can access to Service Menu. In addition, in Hotel Menu, we also provide a great deal of useful functions for specific applications in hotel.

Accessing Way
a. When the Design mode hotkey item is disabled(OFF), press Menu button of remote control, then select Settings/ Picture, make sure the cursor stop on Contrast item submenu, press 1, 9, 5, 0 consecutively.
b. When the Design mode hotkey item of Design Menu is enabled (ON, you can see the flashing Factory Captions Info on the lower left corner), press Back button of remote control.
Press RCU OK key to enter the submenu.
Press RCU Right/Left key to change the values.
Press RCU Right/Left key run the function.
Press RCU Back/Menu key exit the Factory menu.
Design Captions Information is the same to Factory Captions Info.

Other Menu
The Other Menu contains some TV basic information, with which we can check the TV setting before production.

Service Menu
Service Menu contains some basic information of the device, such as Project ID, Hardware, Software version, USB Update etc. This menu is especially useful for after-sale service.

Param (Parameter) Setting Menu
Param Setting menu contains Sound Setting, Picture Curve, Picture Setting, SSC, DBC, CI Card, Over scan, WIFI CHECK and USB FILE. But it is exclusively used by R&D engineer, anyone else shouldn’t change the settings in the menu.

All tests and measurements mentioned hereafter have to be carried out at a normal mains voltage (100 ~ 240 VAC)
All tests and measurements mentioned hereafter have to be carried out at a normal mains voltage (100 ~ 240 VAC)

All voltages have to be measured with respect to ground, unless otherwise stated All final tests have to be done on a complete set including LCD panel in a room with temperature of 25+/-7°C

The Picture Performance assessment such as White Balance (luminance and colour temperature) has to be performed into subdued lighted room after at least 60min of warm-up in order to avoid any temperature drift influence (colorimetry vs time).

Pre-Conditions and Power Supply Check
Before power-on, please check the board according to the relevant block diagram and circuit diagram, make sure that no serious issue or mistake can destroy the board. For example, the output of DC/DC and LDO should not be shorted to ground.
Supply a suited voltage and power-on, then check the voltage according to the relevant block diagram, circuit diagram and voltage spec, the error should be less than 5%, for example, the voltage for main chip (+3V3, +2.5V, VDDC1V15, 1V5_DDR, etc.), the voltage for TUNER (TU_3V3), the voltage for amplifier (AMP_VCC), etc.

Project ID Modification
There are different ID stored in the EMMC depending on different Panels settings and Model features, but there’s only one key branching Project ID able to ensure normal display. And when you power on the TV set, you should make sure the Project ID is accord with the BOM description. If not, you need to modify the ID. There are two methods to modify the ID:

Change Project ID in Design Menu
In case of “Design mode hotkey” is enabled, press “Back” button to enter Design Menu. To modify Project ID, you need to go through “Service menuàProject ID”, then press Left or Right key to select suitable ID (Project name is dynamically refreshed). Finally restart the TV set.
In case of “Design mode hotkey” is unabled, you can enter the Design Menu easily with reference to 3.1 Design Menu.

Change Project ID with RCU
Press “062598”+”Menu”+”XXX” (XXX represents project ID you’d like to switch to) in the remote control and wait about half minutes, When the set restart automatically, you have successfully changed project ID.
Here below is none exhaustive ProjectID table for reference:

Function Test
Once the Project ID is correct and the TV display normally, plug all external generator devices to relevant inputs/outputs below according to their respective test patterns format and check picture content and sound quality accordingly:

LAN/WLAN Test: MAC Address Upgrade
Upgrading MAC address needs to use the tool in factory and through serial command. The specific method is according to the operation of the factory guidance.

DeviceID (DID) and UserID (UID)
Purpose is to allow Other Network Download (OND) and further specific services over dedicated portal based on AP. For such, specific DID (32 bytes) and UID (8 bytes) needs to be paired and overwritten into memory for internal client encryption, as below:

Those DID/UID codes can only be set using UART commands following enclosed SIACP requirements (rev. v3.9).

LAN Test
A rough LAN test can be done by connecting Ethernet to TV’s RJ45 and check that IP, subnet mask, DNS addresses, which are visible on “HomeàSettingsàNetworkàEthernet settingsàIP settings” (ensure that “Internet Connection” is Enabled at first). More in-depth test can be performed faster using suitable UART/IR commands following SIACP requirements. SW will internally manage Network ID (NID) flag controlling all MAC/DID/UID integrity to facilitate PA screening further.

SHOP INIT (Intilization)
At final process stage, it’s necessary to perform Shop init before any packing to leave Factory mode and restore User default presets according to the requirement of order.
This function is accessible by selecting “Factory Menu à Shop”, then pressing RCU “Right ”or” Left” key.  Other faster methods are available on above enclosed SIACP requirements (rev. v3.9).

Warm-up Test
Following TCL standard and practices, it’s required minimum 15min of Warm-Up that can be considered as Burn-In. Additional aging for White Balance alignment is no more necessary due to consistent picture performance with cloning usage. This function is accessible by selecting “Factory menu à Warm up”, pressing RCU “Right” or ”Left” key to set it ON, and then it enter in Warm up mode. Press “Menu” key on keyboard to exit the burning mode. Other faster methods are available on above enclosed SIACP requirements (rev. v3.9)

Software Upgrade: How to upgrade Mboot
Connect the computer and mainboard VGA port by a serial port tool. Serial connector definition: VGA/P303: Pin4: RXD VGA Pin11:TXD
Open MTK “Mboot” software programming tool “Flash Tool”, and set serial port.

Import the mboot file, as below

power on the TV, then Click Upgrade key and you will see the below message.

How to upgrade FLASH Software
USB Upgrade Download the update file (generally named V8-MT56551-LF1VXXX.pkg) to the root directory of your USB device, and make sure there’s no other bin file named analogously. Then insert the USB device to USB interface of TV set.
Power on the TV set, Press and hold on the menu key of key board at the same time. If the TV is updating, you’ll see the  screen:

Upgrade process takes about 3 to 5 minutes.
After updating, the TV set will reset automatically.

Online Upgrade
Download the bin zip file “V8-MT56551-LF1VXXX.Zip” to the root directory of your USB device, and do not change the file name. Then insert the USB device to USB interface of TV set.
Press RCU Menu/Settings/Picture/Contrast/1,9,5,0/Service menu/USB Update /Main Upgrade/Local Update . If the upgrade file is found, TV will give a message that it verifying. TV displays a warning message, it means selecting “confirm” to continue or “cancel” to exit. During updating, do not power off the TV set.
After updating, the TV set will reset automatically.

Network Connection
You can set up your TV so that it can access the Internet through your local area network (LAN) using a wired or wireless connection.
Connect to a wired network
Attach the TV set to your LAN using cable in three ways:
Connecting the LAN port on the TV to an external modem using a Cat 5 cable.
Connecting the LAN port on the TV to an IP Sharer which is connected to an external modem. Use Cat 5 cable for the connection.
Depending on how your network is configured, you may be able to attach the TV to your LAN by connecting the LAN port on your TV directly to a network wall outlet using a network cable. Note that the wall outlet is attached to a modem or router anywhere in your house.
Select Home → Settings → Network → Ethernet Settings →IP Settings, then the TV will obtain IP address Automatic configuration. In addition, you can set the IP address and password manually.

Connecting to a wireless network
To connect the TV set to your network wirelessly, you need a wireless router or modem and a Wireless LAN Adapter.
If the TV set is equiped with an internal WiFi module, select Home → Settings → Network → Wireless Settings, then turn on Wireless Switch, select a wireless network and press OK to connect.
If you want to connect the TV set to a wireless network by a Wireless High Gain USB Adapter (USB dongle), select Home → Settings → Network → Wireless Settings, then turn on Wireless Switch and External WiFi, and select a wireless network and press OK to connect.

White Balance (WB) Adjustment
The White Balance generally is customized by PQ engineer, and uploaded to the PDM system, anyone else shouldn’t change the value in the menu. If it is necessary to adjust, the following content can offer some reference, but the process of adjusting White Balance is out of the range of this file.
Calibration of Color Temperature
According to TCL standards, the color temperature and white reference coordinates of LCD like the following table: (This standard is based on CA-310 color temperature meter)

White balance adjustment takes the Normal color temperature of HDMI channel as the reference.
Warm and Cold tone is relative to Normal mode. The adjustable gain range is 0~255.
The Normal color temperature of other channel is relative to the Normal mode of HDMI channel. The adjustable gain range is also 0~255.
The manual adjustment is according to the regulation above. Additionally, when manually adjust, it needs to do White Balance init first.
Take signal generator 22293 as an example, the timing value and pattern value of each source show in the following table:

Note:

1) The input signal is 80% white when the pattern value of 22293 is 103.
2) The adjustment of White Balance should fulfill TCL matching specification.

Audio output schematic

SMPS (Power) schematic

Sony WRT 807B Schematic diagram, troubleshooting, disassemble and reassamble procedure - UHF SYNTHESIZED WIRELESS MICROPHONE

 

LCD readout of various information
The microphones LCD shows the current channel number, frequency, input attenuation setting, and residual battery power.
The accumulated battery use time is also indicated (in oneminute increments) to allow precise monitoring of battery use.
Automatic saving of channel and input attenuation settings
All channel and input attenuation settings are automatically saved when the microphone is turned off (and are maintained even when the battery is removed), thus eliminating the need to make the same settings again the next time you use the microphone.
Highly reliable electronic attenuator
Adjustable in a range of 0 dB to 21 dB in 3-dB steps, the built-in input level attenuator reduces signal distortion during the input of excessively strong audio signals.
Tone signal-incorporated RF carrier signal
The microphone transmits an RF carrier signal that incorporates a tone signal to enable any tuner with a tone squelch circuit to pick out only the target audio signal.
Wide dynamic range and low noise
The microphones compander (compressor/expander) system enables transmission over a wide dynamic range with minimum noise.

• When operating two or more microphones, keep the microphones separated from each other by a distance of at least 30 cm (1 foot).
• Keep the microphones at least 3 meters (10 feet) away from receiving antenna.

CH (channel) indication
Displays the transmitting channel.
Each time you press the SET button in Transmit mode, the channel indication changes as follows.

Transmitting channel: The current transmitting channel setting.
Transmitting frequency: The current transmitting frequency setting.
Attenuation: The input attenuation setting in decibels.  Can be set within a range of 0 dB to 21 dB in 3-dB steps.
Accumulated battery use time: The accumulated time of battery use (in 1-minute increments).

SET button
In Transmit mode, press this button to change the indicated items in the lower half of the liquid-crystal display.
To change to Setting mode, turn the POWER switch to ON while holding this button down. Then press this button to select the items to be indicated.

Initiating Setting Mode

Enter Setting mode to change the transmitting channel, the transmitting frequency and the attenuation level, or to reset the accumulated battery use time indication.
To enter Setting mode
While holding down the SET button, turn the POWER switch to ON.
Hold the SET button down until an indication appears on the liquid-crystal display.
The microphone enters Setting mode and the indication before the microphone was previously turned OFF flashes on the liquid-crystal display.
Pressing the SET button cycles the modes in the order of Channel selection mode, Frequency selection mode, Attenuator adjustment mode and Accumulated time indication reset mode.
Note
On the model available in Europe, the transmitting channels are grouped in four sets as shown in “Sony Wireless Microphone System Frequency List.”

[On the model available in Europe, set the channel group indication (the left two digits) first. Press the + or – button to toggle the channel group (e.g., for CE62 model: 00 y 62 y 63 y 64) and press the SET button. Then, the remaining four digits start to flash for setting the channel number]

Changing the Transmitting Channel

The transmitting channel can be selected through either the channel number or the frequency.
1 Set the microphone to Setting mode.  If the channel number (or frequency) indication does not appear,
(or)
press the SET button until the channel number frequency) indication appears.

Changing the Input Attenuation Setting

The input attenuation setting can be changed within a range of 0 dB to 21 dB (in 3-dB steps) in either Setting mode or Transmit mode.

Changing the input attenuation in Setting mode
1 Set the microphone to Setting mode.
2 If the attenuation level is not displayed, press the SET button until it appears.
3 Press the + or – button to change the attenuation setting.

4 Once the desired level appears, turn the POWER switch to OFF to release Setting mode, or press the SET button to continue operations in Setting mode.

The next time you turn on the microphone (by turning the POWER switch to ON), the microphone enter Transmit mode with the selected attenuation setting

Changing the input attenuation in Transmit mode
You can also change the input attenuation setting while transmitting
If button in Transmit mode.
1 the attenuation level is not displayed, press the SET until it appears.
2 Press the + or – button to change the attenuation setting.

Resetting the Accumulated Battery Use Time Indication

The accumulated battery use time is the total time (in hours and minutes) the battery has been used. It is recorded whenever the WRT-807B is on.
Reset the indication to 00:00 whenever you replace the battery.
1 Set the microphone to Setting mode.
2 If
4 Turn the accumulated battery use time is not displayed, press the SET button until it appears.
3 Press the – button.
The indication resets to 00:00.

Press the + button while the 00:00 indication is on to go back to previous value.

Troubleshooting

Disassembly procedure

Reassembly procedure

EEPROM (IC202, DP-306 board) replacement

When replacing EEPROM (IC202) on the DP-306 board or replacing DP-306 board, perform the following operation.
When the power is turned on initially after the replacement:
1. “Error 11” is indicated on the display.
2. Turn off the power. Next turn on the power again.
Confirm that “CE57B” (for CE57 model) is indicated on the display.
Confirm that “CE62B” (for CE62 model) is indicated on the display.
Confirm that “CE67B” (for CE67 model) is indicated on the display.
Confirm that “U30B” (for U30 model) is indicated on the display.
Confirm that “U42B” (for U42 model) is indicated on the display.
Confirm that “U62B” (for U62 model) is indicated on the display.
Confirm that “U66B” (for U66 model) is indicated on the display.

How to make a AF input cable

Schematic diagram and PWB layout

PWB

Sony STR NX5MD Tuner Amplifier - AEP, UK AND E MODELS - test mode, schematic diagram

 

 [CD Delivery Mode]
• This mode moves the optical pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair.
1. Press the Power  button to turn the power ON.
2. Press the [ENTER] and Power  buttons simultaneously.
3. A message “LOCK” is displayed on the liquid crystal display, and the CD delivery mode is set.

[Change-over the MW Tuning Interval]
• The MW tuning interval can be changed over 9 kHz or 10 kHz.
1. Press the Power  button to turn the power ON.
2. Press the [TUNER] button to select the function “TUNER”, and press the [TUNER BAND] button to select the BAND “MW”.
3. Press the Power  button to turn the power OFF.
4. Press the [TUNER MEMORY] and ?/1 buttons simultaneously, and the display on the liquid crystal display changes to “MW 9 k STEP” or “MW 10 k STEP”, and thus the tuning interval is changed over.

[MC Cold Reset]
• The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer.
1. Turn the power ON or set to the DEMO mode.
2. Press the [GROOVE] and Power  buttons simultaneously.
3. The set is reset, and displays “COLD RESET”, then becomes DEMO mode.

[Amplifier Test Mode]
1. Press the Power  button to turn the power ON.
2. Press three buttons of [ENTER] , [DISPLAY] , and [TUNER BAND] simultaneously.
3. “ALC OFF” is displayed, then the function which was set before the test mode became active is displayed.

[LED and Liquid Crystal Display All Lit, Software Version Display, Key Check, VACS Level Display Mode]
1. Press the Power  button to turn the power ON.
2. Press three buttons of [ENTER] , [DISPLAY] , and [STEREO/MONO] simultaneously.
3. LEDs and liquid crystal display are all turned on.
Rotating the JOG dial changes over the check patterns of liquid crystal display.
4. Successively, the following three modes can be activated.
(1) Press the[VIDEO] button, and the software version is displayed on the liquid crystal display.
(2) Press the [MD] button, and the key check mode is activated.
In the key check mode, the liquid crystal display displays “K 0 J0 V0”. Each time a button is pressed, “K” value increases.
However, once a button is pressed, it is no longer taken into account.
“J” value increases like 1, 2, 3 ... if turn the JOG dial clockwise, or it decreases like 0, 9, 8 ... if turn the JOG dial counterclockwise.
“V” value increases like 1, 2, 3 ... if turn the [VOLUME] dial clockwise, or it decreases like 0, 9, 8 ... if turn the JOG dial counterclockwise.
(3) Press the [TAPE] button, and the VACS level is displayed on the liquid crystal display.
5. To release from these mode, press three buttons in the same manner as step 2, or remove the power cord.

[MC Hot Reset]
• This mode resets the set with the preset data kept stored in the memory. The hot reset mode functions same as if the power cord is plugged in and out.
1. Turn the power ON or set to the DEMO mode.
2. Press three buttons of [ENTER] , [DISPLAY] , and [TUNER MEMORY] simultaneously.
3. The set is reset, and becomes standby state.

 [Change-over of VACS ON/OFF]
1. Press the Power button to turn the power ON.
2. Press three buttons of [ENTER] , [DISPLAY] , and [GROOVE] simultaneously, and the display on the liquid crystal display changes to “VACS ON” or “VACS OFF”, and thus the VACS ON/OFF is changed over.
[VIDEO input, Record and CD play in CD function]
1. Press the Power button to turn the power ON.
2. Press three buttons of [ENTER] , [DISPLAY] , and -<< simultaneously.
3. “DVD 5.1CH” is displayed on liquid crystal display, and at the same time, CD is played and the deck B is placed in the record status.

[CD Service Mode]
• This mode can run the CD sled motor optionally. Use this mode, for instance, when cleaning the optical pick-up.
1. Press the Power button to turn the power ON.
2. Press the [CD] button to select the function “CD”.
3. Press three buttons of [ENTER] , [POWER SAVE/DEMO (STANDBY) , and [STEREO/MONO] simultaneously.
4. Set to the Sled Servo mode.
5. With the CD in stop status, turn the JOG dial clockwise to move the optical pick-up to outside track, or turn it counterclockwise to inside track.
6. To release from this mode, perform as follows.
1) Move the optical pick-up to the most inside track.
2) Remove the power cord.
Notes: • Always move the optical pick-up to most inside track when releasing from this mode. Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can be chipped.

[Aging Mode]
This mode can be used for operation check of CD section and tape deck section.
CD section and tape deck section work in parallel.
• If an error occurred:
The aging operation stops only an error occurred sections and display then status.
• If no error occurs:
The aging operation continues repeatedly.
1. Set disc in DISC5 tray.
2. Load the tapes into the decks A and B respectively.
3. Press the [PLAY MODE] button to set the “ALL DISCS” mode, and press the [REPEAT/PTY] button to “REPEAT” off.
4. Press the [CD] button to select the function “CD”.
5. Press three buttons of [ENTER] , [POWER SAVE/DEMO (STANDBY) , and [TUNER BAND] simultaneously.
6. The aging mode is activated, if the indicator of disc tray number on the liquid crystal display is blinking.
7. To release from the aging mode, press the Power button to turn the power OFF and operate the cold reset. (Refer to the “MC Cold Reset”)

Display at the Aging Mode
• Display operating state of CD section and tape deck section alternately.
• If an error occurred, stop display which that section.
2. CD Section
• Display at the aging mode is the same as the normal operation.
• The sequence during the aging mode is following as below.

• Display at an error occurred
1) Display of the error count
(1) Press three buttons of [ENTER] , [POWER SAVE/DEMO
(STANDBY) , and [GROOVE] simultaneously.
(2) Display of the error count following as below.

Notes:
EMC**: The number of mechanical error.
EDC** : The number of no disc error after chucking the disc.

2) Display of mechanical error

Notes:
**: The number of mechanical error.(“00” is latest one)
(Press the [PLAY MODE] button to changes next error display)
## : Not used.
$$ : Loading error. (Second figure is not used)
D : The error in the midst of close at the except mechanical trouble.
E : The error in the midst of open at the except mechanical trouble.
C : The error in the midst of chuck up at the except mechanical trouble.
F : The error in the midst of EX-open at the except mechanical trouble.
&&: Loading error. (Second figure in not used)
1:The error in the midst of chuck up.
2:The error in the midst of chuck down.
3:Time up of EX-open
4:Time up of EX-close.

3) Display of no disc error

Display
E**D##$$&&

Notes:
**: The number of mechanical error.(“00” is latest one)
(Press the [REPEAT] button to changes next error display)
##:
01:Focus error
02:GFS error
03:Set up error
$$:
00:No disc error when does not chucking retry.
02:No disc error when chucking retry to completion.
&&: The state when judged no disc error. (Second figure is not used)
1:Stop
2:Set up
3:TOC read
4:Access
5:Play
6:Pause
7:Manual search (Play)
8:Manual search (Pause)

Schematic diagrams