Onkyo TX-8220 Manual

Note for Parts List

File Name of Parts List File (EXCEL File)
When parts list is EXCEL file, please refer to the following explanation about file name.

Color
(X) Not related to color
(B) Black
(BR) Brown
(C) Cherry
(G) Gold
(GR) Green
(H) Gray
(K) Black
(L) Blue
(LB) Light Blue
(M) Wood
(O) Orange
(P) Pink
(R) Red
(S) Silver
(V) Violet
(W) White
(Y) Yellow

Voltage
D 120V AC
G 220~230V
H 220~230/240V
J 100V AC
M 220~240V AC
P 230V AC
U 100~240V AC
V 110~240V
W 120V/220~240V
Z ※1
Speaker System (without AMP.):
0 Passive Subwoofer
F Front Speaker
C Center Speaker
R Rear Speaker
B Back Speaker

Destination

1. Australia
2. United Kingdom
3. North American
4. USA

6. Taiwan

10. Japan

11. Korea
12. Russia

16. Europe
17. Hong Kong
18. China
19. Brazil
20. Thai
21. Worldwide

Speaker System (without AMP.):
L Left channel
R Right channel
0 Center channel
※1 There is a charge function and a power supply (adapter) is needed, but an adapter isn't bundled.

Panel

Front Panel

Rear Panel

Dimensions (W x H x D): 17-1/8" x 5-7/8" x 12-15/16" (435 mm x 149 mm x 328 mm)
Weight: 6.8 kg / 15 lbs (North American), 7 kg / 15.4 lbs (European)

Remote Control Unit RC-962R

Accessory

1. Remote controller (RC-962R) (1)
2. Batteries (AAA/R03) (2)
3. FM indoor antenna (1) (North American models)
   FM/DAB antenna (1) (European models)
4. AM indoor antenna (1) (North American models)

Reset

[ Speaker A/B ] + [ Srandby/On ]

Protection

PROTECT FUNCTION
This function is a function created to avoid the electrolytic capacitor rupture due to turning on the power again when the amplifier circuit breaks down and smoke ignition by transistor breakdown.

Operating principle
The MCU detect either current, voltage and temperature error in the device, the device will be shutodown and enter protect mode and enter standby mode.
This mechanism of detect, Either VPROTECT、IPROTECT or THERMAL Signal occurred error, MCU will control RL6003 and RL6004 for power shut down and enter standby mode.
*It will recovery to power on.

Repare
If the device detect errors, you test power on again. When the device enter standby mode again, you should exchange Main board and Final transistors. It is very difficult for find where is wrong..

Model and Destination

1. Volume 25.
2. Test Mode
   [ Tuning/Preset ] + [ Standby/On ]
   Display "Test-_-__".
3. [ Input UP ] → [ > ] → [ > ]
   Show Model Name, Destination and Band Type.

Hookup and Setting

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 Blu-ray 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
  • Reset this model

Schematic Diagrams

Block Diagram

AMP Section

DIR DAC Section

SOC Section

Volume Section

Subtrans Section

Power Section

Service Notes

1. 
   Safety-related component warning!!
   Components identified by mark on the schematic diagram and by mark "!" in the parts list are critical for risk of fire and electrical shock. Replace these components with ONKYO parts whose part numbers appear as shown in this manual.

2. Safety check after servicing
   1. To ensure safety, check that the covered insulating sheet or tube are removed, all parts and wires which are removed or disconnected while servicing have been put back to their original positions after servicing.
   2. To insure structural integrity, check that all the screws or mechanical parts have been put back in their original positions after servicing.
   3. Check that in the process of servicing or replacing parts that the surrounding area has not been contaminated or adversely affected.
   4. After servicing an insulation check on the external metal connectors and between the blades of the power plug must be performed. Method of checking insulation resistance Unplug the power cord and short the both ends of the plug with a jumper wire. Using a 500V insulation resistance tester, check that the insulation resistance value between the plug of the power cord and externally exposed metal parts is 1MΩ or greater. ※The mechanical power switch should be turned on if it is available.
3. 
   Caution on replacing the battery
   
   Danger of explosion if rechargeable batteries is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. When disposing of used batteries, please comply with governmental regulations or environmental public institution's rules that apply in your country / area.
4. Other Cautions
   • When AC plug is non-polarized and if Main or Primary fuse enters in the Neutral line of AC Mains supply or if there is possibility of Main or Primary Fuse entering in the Neutral line of AC Mains supply, then AC Mains supply must be disconnected to de-energize the circuit.
   • Be sure to use only lead free solder.
   • When soldering, please be careful not to use too much solder and affect adjacent components.

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.

Documents / Resources

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Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

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