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TX-SR603X/603E/8360 OPERATION CHECK-3
CONTROL OF POWER SUPPLY (OUTPUT SENSOR AND THERMAL SENSOR)
[When] 1. Exchange power transistors (Q6050 - Q6066). 2. Exchange power amplifier PC board ass'y (NAAF-8523). 3. Exchange thermal sensor PC board ass'y (NAETC-8526). [Procedure] <Note> No output. No input. Output sensor 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.
Test - _
Blinks
2. Press the VIDEO 3 button, while the character of " Test - _ " is displayed. Unit will be in the state of " Test-4-00 ".
Test - 4-00
3. Repeatedly press TONE+ button until the character of " Test-4-37 " is displayed.
Test - 4-37
4. Adjusts MASTER VOLUME to Max. position. At this time, check the character of " FM STEREO " displayed. And, check relay RL6901 and RL6902 are turned off in 2 - 3 seconds.
Test - 4-37
5. Press the STANDBY/ON button.
FM STEREO
Turn off
Clear
Thermal sensor
1. Press and hold down the DISPLAY button, then press the STANDBY button when the unit is power ON. " V e r . 0 . 5 0 / 0 5 1 3 1 a " is displays it only for 2 seconds. <Ex.>
Ver. 0.50/05131a
2. Press the TONE button, while the character of " Ver.0.50/05131a " is displayed. <Ex.>
T: 25 C/ 77 F
3. Check the displayed temperature is +/-20 C of the ambient temperatures. 4. Press STANDBY/ON button.
Turn off
Clear
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