ONKYO hfe onkyo a-9050 service en free download

File name hfe_onkyo_a-9050_service_en.pdf

A-9050 Ref. No. 4412 092012 Integrated Amplifier MODEL A-9050(B)/(S) Black and Silver models RC-830S B MDC 120V AC, 60Hz B MPP 230V AC, 50Hz S MPP 230V AC, 50Hz A-9030 / 9050 / M-5010 / ADM-20.4 Service Procedure 1. Setting for shipping 1-1. Initialization of memories [A-9050, A-9030] Push PURE DIRECT button and Standby at same time. 1-2. Initial setting [A-9050, A-9030] SELECTOR SPEAKERS BASS TREBLE BALANCE VOLUME PURE DIRECT RI MODE 4ohm/8ohm Auto Standby [M-5010, ADM-20.4] Input Level 12Vtrg or Audio 4ohm/8ohm Auto Standby A-9030/9050/M-5010/ADM-20.4 Operation Check - 1 1-1. Confirm Relay operation a. Confirm that the relay of SP A and the relay of SP B operate normally respectively by SPEAKER A/B TRIM. b. It is confirmed that the relay cuts at once if becoming POWER OFF. c. Confirm no-sound from SWpreOUT when you insert HP JACK. (A-9050 / A-9030 ONLY) d. Confirm relay operation, when 4ohm-8ohm switch is change to the other possition. 1-2. Confirm of remote controll operations.(A-9050, A-9030 ONLY) a. Confirm that specified operations for each button are made. b. Confirm the RI operation. c. Confirm the change of RI mode to swith S7901-S7903 (A-9050 ONLY) 1-3. Confirm of Audio Sense operations.(M-5010, ADM-20.4 ONLY) a. TRIGGER switch is AUDIO at the condition of no input, and it turns off power. b. Confirm that it dosen't become the POWER ON ,if "-65dBV, 1KHz" inputs. c. Confirm that it becomes the POWER ON ,if "-45dBV, 1KHz" inputs. 1-4. Confirm of 12V trigger operations.(M-5010, ADM-20.4 ONLY) a. TRIGGER switch is 12Vtrg at the condition of no input, and it turns off power. Confirm it become the POWER ON if 12V trigger is input. b. Confirm 12VTRG is output when the POWER ON. A-9030/9050/M-5010/ADM-20.4 Operation Check - 2 2-1. Voltage protection a. The unit receives the remote control signal, it goes into the test mode 1-02. b. The speaker relay become OFF immediately after "D.C. 1.5V inputs" to CD SELECTOR to check L and R. The same as above when "D.C