Saturday, February 20, 2016

YAMAHA RX-V363 - HTR-6130 – Firmware update – Confirmation of the firmware – Initialization – Self Diagnostics – Protection Function - AV Receiver Repair and Service

                                                 

YAMAHA RX-V363 - HTR-6130

Starting Self-diagnostic Function
Press the “STANDBY/ON” key while simultaneously pressing STRAIGHT and AUDIO SELECT keys.
Starting Self-diagnostic Function in the protection cancel mode
If the protection function works and causes hindrance to trouble diagnosis, cancel the protection function as described below, and it will be possible to enter the self-diagnostic function mode. (The protection functions other than the excess current detect function will be disabled.)
Press the “STANDBY/ON” key while simultaneously pressing those two keys STRAIGHT and AUDIO SELECT keys . At this time, keep pressing those two keys for 3 seconds or longer.
In this mode, the [SLEEP] segment of the FL display of this unit flashes to indicate that the mode is self-diagnostic function mode with the protection functions disabled.
Canceling Self-diagnostic Function
1. Before canceling self-diagnostic function, execute setting for FACTORY PRESET of main menu No.13 (Memory initialization inhibited or Memory initialized).
# In order to keep the user memory stored, be sure to select PRESET INHIBITED (Memory initialization inhibited).
2. Turn off the power by pressing the “STANDBY/ON” key of this unit.
# Display provided when Self-diagnostic Function started
On the FL display of this unit, an opening message (including the protection history) appears for a few seconds followed by the self-diagnostic function menu display
When there is a history of protection function due to excess current
Cause: An excessive current flowed through the power amplifier.
Supplementary information:
As current of the power amplifier is detected, the abnormal channel can be identified by checking the current detect transistor.
Turning on the power without correcting the abnormality will cause the protection function to work immediately and the power supply will instantly be shut off.
Note:
# Applying the power to this unit without correcting the abnormality can be dangerous and cause additional circuit damage. To avoid this, if “PRI” and “PRD” protection function has been activated 3 times continuously, the power will not turn on even when the “STANDBY/ON” key is pressed. In order to turn on the power again, disconnect the power cable of this unit from the AC outlet once and then reconnect it again.
# The output transistors in each amplifier channel should be checked for damage before applying power to this unit.
# Amplifier current should be monitored by measuring DC voltage across the emitter resistors for each channel.
When there is a history of protection function due to abnormal DC output
Cause: DC output of the power amplifier is abnormal.
Supplementary information:
The protection function worked due to a DC voltage appearing at the speaker terminal. A cause could be a defect in the amplifier.
If the power is turned on with the abnormality unsolved, the protection function works in about 3 seconds to turn off the power.
When there is a history of protection function due to abnormal voltage in the power supply section
Cause: The voltage in the power supply section is abnormal.
Supplementary information:
The protection function worked due to a defect or overload in the power supply.
If the power is turned on with the abnormality unsolved, the protection function works in about 1 second to turn off the power.
When there is a history of protection function due to excessive heat sink temperature
Cause: The temperature of the heat sink is excessive.
Supplementary information:
The protection function worked due to the temperature limit being exceeded. Causes could be poor ventilation or a defect related to the thermal sensor.
If the power is turned on with the abnormality unsolved, the protection function works in about 1 second to turn off the power. For detection of each protection function, refer to main menu described later.
History of protection function
When the protection function has worked, its history is stored in memory with a backup. Even if no abnormality is noted while servicing the unit, an abnormality which has occurred previously can be defined as long as the backup data has been stored. The history of the protection function is cleared when self-diagnostic function is cancelled by selecting PRESET RESERVED (Memory initialized) of main menu No. 13 or when the backup data is erased.
Operation procedure of Main menu and Sub-menu
There are 14 menu items, each of having sub-menu items.
Main menu selection:
Select the menu using “>” (forward) and “<” (reverse) keys of PROGRAM.
Sub-menu selection:
Select the sub-menu using “SCENE 2” (forward) and “SCENE 1” (Reverse) keys.
Functions in Self-Diagnostic Function mode
In addition to the self-diagnostic function menu items, functions as listed below are available.
# Power on/off
# Master volume
# Muting
# Speakers A/B/OFF
# Input selection
# Audio select
# Tone control
# Functions related to the tuner and the set menu are not available.
Keys of this unit
Reverse Forward
Reverse Forward
Sub-menu selection
Main menu selection
# Initial settings used to start Self-Diagnostic Function
The following initial settings are used when starting self-diagnostic function.
When self-diagnostic function is canceled, these settings are restored to those before starting self-diagnostic function.
# Master volume: -20 dB
# Input: DVD (MULTI CHANNEL INPUT OFF)
# Effect level: 0 dB
# Main menu: 1. ANALOG BYPASS
UPDATING FIRMWARE
After replacing the following parts, be sure to write the latest firmware.
# DSP P.C.B.
# IC201 (DSP P.C.B.)
Required Tools
# DVD or CD player (with DIGITAL OUTPUT (OPTICAL or COAXIAL) jack)
# Optical cable (when OPTICAL jack is used)
# Digital audio pin cable (when COAXIAL jack is used)
# Firmware CD
# To make the firmware CD, download the latest firmware from the specified download source to PC.
Operation Procedures
1. Connect this unit and DVD/CD player to optical input
2. While simultaneously pressing the “STANDBY/ON” and “SPEAKERS A/B/OFF” keys of this unit, connect the power cable of this unit to the AC outlet.
The FIRMWARE UPDATE mode is activated and “SPDIF Upgrade” is displayed.
3. Connect the power cable of DVD/CD player to the AC outlet.
4. Press the “STANDBY/ON” key of the DVD/CD player.
5. Press the “EJECT” key of the DVD/CD player to open the disc tray.
6. Place the firmware CD in the disc tray and close the disc tray.
7. Press the “PLAY” key of the DVD/CD player. Then writing of the firmware is started.
8. When writing of the firmware is completed, “Upgrade OK”, “Please...” and “Turn off!!” are displayed repeatedly.
When the version of the firmware to be written is the same as the one existing in this unit, “Same Version”, “Please...” and “Turn off!!” are displayed repeatedly. (Upgrading is not necessary.)
If the display remains unchanged for more than 10 seconds after starting the firmware CD play procedure, perform the firmware CD play procedure again from the beginning.
If “FILE CORRUPTED” is displayed after “Address:XXXXXX”, make sure that the firmware CD is not corrupted and perform steps 1 to 8 of “Operation Procedures” again.
If “Upgrade Failed” is displayed, perform Steps 1 to 8 of “Operation Procedures” again.
9. Press the “STOP” key of the DVD/CD player.
10. Press the “EJECT” key of the DVD/CD player to open the disc tray.
11. Remove the firmware CD from the disc tray and close the disc tray.
12. Turn off the power of the DVD/CD player and disconnect the power cable from the AC outlet.
13. Turn off the power by pressing the “STANDBY/ON” key of this unit.
Confirmation of firmware version and checksum
To confirm that the firmware is updated successfully, check the firmware version and checksum value by using the self diagnostic function menu “14. ROM VER/SUM”.
For more information, refer to “SELF DIAGNOSTIC FUNCTION”.
# When the displayed firmware version and checksum are different from written firmware version and checksum, follow
the steps from 1 to 13 of “Operation Procedures” again.
Initializing of this unit
# After updating the firmware, be sure to initialize this unit.
1. Connect the power cable of this unit to the AC outlet.
2. Press the “STANDBY/ON” key while simultaneously pressing the “STRAIGHT” and “AUDIO SELECT” keys.
The self-diagnostic function is activated.
3. Select the main menu “13. FACTORY PRESET”.
4. Select the “PRESET RSRV”.
5. Turn off the power of this unit and disconnect the power cable from the AC outlet.