Saturday, February 13, 2016

ONKYO TX-RZ900 AV Receiver - Factory reset procedure - Self diagnosis - Firmware checking and updating procedure - Troubleshooting - AV receiver Repair and service

                                                 Category: AV Receiver Repair and Service 

Contents of this article 
  • Factory Resetting Procedure
  • Firmware updating Procedure
  • Troubleshooting    

ONKYO TX-RZ900

Resetting the Unit
# How to reset:
Step:1
While holding down CBL/SAT on the main unit (note that step 2 must be performed with this button pressed down)
Step:2
Press ON/STANDBY on the main unit. ("Clear" appears on the display and the unit returns to standby.)
# Do not unplug the power cord until "Clear" disappears from the display.
# How to reset the remote controller:
Step:1
While holding down RECEIVER on the remote controller, press Q until the remote indicator stays lit (about 3 seconds).
Step:2
Within 30 seconds, press RECEIVER again.
Self-diagnostics
This function is For avoiding the rupture of electrolytic capacitors with amplifier circuit failure during power-ON.
Operation of Self diagnostic
Self-diagnostic will start at the timing of next power on, after goes to the protect mode by Current detection or DC voltage detection.
Only On/Standby key could work in this mode. Also remote control does not work.
However, the CLEAR operation is enabled.
During Self-diagnostic, the power supply for amplifier circuit become low voltage state(SEC1-LOW), and the speaker relay will be turned off. Then, MPU will check each amplifier circuits internally by entering the test signal (20 kHz,-20 dBFS sine wave) to each channel from DSP.
MPU will judge the amplifier circuit is good or not from VOLH value.
The normal range of VOLH value is 0.04 V < VOLH < 0.20 V.
If VOLH value is in the out of this range, it will be judged as NG (No good).
No problem found
When protected by current detection, and no problem found, "CHECK SP WIRE“ will be displayed in this State, Only the On/Standby key is effective. And it do not anything for 3 minutes, unit goes into stand by automatically.
When protected by a DC voltage detection, and no problem found, unit goes into normal operation.
Problem found
When judged as there is a problem on any channel, the information of channel that has a problem will be displayed. In this State, Only the On/Standby key is effective. Also remote control does not work. if do not anything for 3 minutes, unit goes into standby automatically. This state will keep also after unit turn on/off, or AC unplugged.
The power supply for the amplifier becomes low voltage state and the speaker relay will be turned on.
Repair Process and How to Confirm
Confirmation of the protect cause
While NG channel is displayed, You can confirm the protect cause by following the step below
1. Press the Enter button
2. The protection causes are displayed for 5 seconds.
Please check the around of those amplifier circuit and repair it.
Clear of NG CH information
After repair, you can clear NG CH information by following the steps below.
1. Press the On!Standby key while pressing the Enter key.
2. Display as in the right figure appears.
3. Unit goes into Standby automatically after 5 seconds.
Self-diagnostic will start again at the timing of next power on.
By this, You can verify whether repair was properly or not.
If problem found after repair, please re-check the around of its circuit.
Cancel of Self-diagnostic
You can cancel this mode by clear operation (press Standby key while pressing CBL/SAT key)
After cancel this mode, receiver will be started as normal operation.
How to check Firmware Version & Preparation of Update
Step1 : [DISPLAY] + [ON/STANDBY] x 2
Main Firmware Version will appear on the main unit’s display.
Step2 : [TONE +]
NET Firmware Version will appear on the main unit’s display.
Step3 : [TONE +]
DSP Firmware Version will appear on the main unit's display.
Step4 : [TONE +]
VIDEO Firmware Version will appear on the main unit’s display.
Step5 : [TONE +]
OSD Firmware Version will appear on the main unit’s display.
Step6 : [TONE +]
V8100 Firmware Version will appear on the main unit’s display ( DTR-40.7 only)
Preparation of Update
How to update (service mode)
Overwriting is also possible.
1.Turn on the unit. It takes some time to start after you switch on the unit.
2.Select the USB input source.
3.Connect the USB storage device to USB port on the unit. Wait until Initializing of USBINET finishes.
4.Hold down [DISPLAY] button and then press [ONISTANDBY] button twice.
Main version will be displayed, and HYBRID STANDBY indicator will start to flash.
5.Press [RETURN] button. “NET -> ALL_D" will be displayed.
6.Select "USB -> ALL_D" by [PRESET(left/right)] cursors and [TUNING(up/down)] cursors, then press [ENTER] button, updating will begin.
7.Wait until update is completed. When the update ends, "Completed!" is displayed (if you leave it, it automatically turns standby mode. )
8.Press [ON/STANDBY] button, and the unit turns on.
9.Check the new FW version number.
Note:If the procedure might not be successful, please select "USB -> ALL_M”.
TROUBLESHOOTING
No Sound
No sound from connected player
# Chose input selector which is assigned to connected input terminal ?
# Isn't muting on ?
No sound from connected TV
# Chose wrong input selector ?
# Connect to this model's HDMI OUT terminal from TV by HDMI cable ?
# When TV supports ARC function, connect to his model's HDMI OUT terminal from TV's HDMI input terminal for ARC function ?
# When TV doesn't support ARC function, connect TV to this model with optical cable etc. ?
# Isn't muting on ?
No sound from some connected loudspeaker(s)
# No sound loudspeaker(s) config is enabled ?
No sound from all connected TV or Bluray player etc.
# After chose loudspeaker volume level setting, test tone is OK ?
No problem about above items
# Unplug power cord
After 10 seconds, connect power cord again.
# Execute Reset 
NO Picture
In general
# Connection cable is bent , twisted or damaged ?
# Input is switched on TV ?
No picture from connected player by HDMI input terminal
# Chose input selector which is connected to player ?
# Listening mode is not Pure Audio ?
# Don't use HDMI-DVI adaptor. From personal computer ?
No picture from connected player by component video terminal
# Output to TV connected to component video out terminal from player's picture connected to the composite video input terminals ?
No problem about above items
# Unplug power cord
After 10 seconds connect the power cord again
# Execute Reset 
No Power
In general
# Doesn't be connection cable bent, be it twisted and be it damaged?
There is time when indication on the front panel doesn't just light up.
# Please check the connecting cord of a DISPLAY PCB.
No problem about above items
# Unplug power cord
After 10 seconds, connect power cord again
# Execute Reset