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ONKYO TXSR303
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of ONKYO TXSR303 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 4 (click to view)
TX-SR303/303E OPERATION CHECK-1
SPEAKER PROTECT-1 (DC VOLTAGE DETECTION)
[When] 1. Exchange power transistors (Q6050 - Q6064). 2. Exchange amplifier PC board ass'y (NAAF-8523). [Procedure] <Note> No load. No input. 1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power ON. "Test - _" is displays it only for 5 seconds.

Te st - _

Blinks

2. Press the VIDEO 3 button, while the character of "Test - _" is displayed. Unit will be in the state of " Test-4-00 ".

Te st - 4-00
3. Repeatedly press TONE+ button until the character of " Test-4-21 " is displayed.

Te st - 4-21
Checking the operation starts automatically as follows.

Te st - 4-21
------- Front L ch Check

P rotect OK Te st - 4-22
------- Front R ch Check

P r otect OK Te st - 4-23
------- Center ch Check

P r otect OK Te st - 4-24
------- Surround L ch Check

P r otect OK Te st - 4-25
------- Surround R ch Check

P rotect OK P rotect
If all channel are OK, the character of " Test - 4 - 35 " is displayed.

Te st - 4-35
4. Press the STANDBY/ON button.
Turn off

Clear

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