3-5
ONE POINT REPAIR GUIDE
1. NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE OR
“HELLO” ON FRONT PANEL
When you turn on your set, no message on the front panel, and stand-by LED doesn’t work.
1-1. IC300 System 12 VA (No 12 VA)
1-1-1. Solution
Replace MAIN board.
1-1-2. How to troubleshoot (Countermeasure)
1) Please check 20 VA of IC300 pin2 (VIN).
2) If 20 VA is abnormal, please check adapter.
3) If 20 VA is OK, but 12 VA is abnormal pin3 of IC300 (VOUT), replace MAIN board.
1-1-3. Service hint (Any picture / Remark)
< MAIN board top view >
IC300
IC300
L301
L301
Summary of Contents for SJ9
Page 37: ...2 22 ...
Page 53: ...3 16 CRYSTAL Fig 1 4 Crystal X601 25 MHz Fig 1 3 Crystal X603 12 288 MHz 3 4 3 4 ...
Page 57: ...3 20 13 14 5 OPTICAL Fig 5 2 Optical Opt Det Fig 5 1 Optical Opt In 13 14 ...
Page 60: ...3 26 3 25 2 MAIN P C BOARD DIAGRAM TOP VIEW ...
Page 61: ...3 28 3 27 MAIN P C BOARD DIAGRAM BOTTOM VIEW ...
Page 62: ...3 30 3 29 3 HDMI JACK P C BOARD DIAGRAM TOP VIEW BOTTOM VIEW ...
Page 73: ...4 10 7 6 3 VOLTAGE Fig 3 2 Woofer 12 VA Fig 3 1 Woofer PVDD 6 7 ...
Page 74: ...4 11 9 8 VOLTAGE Fig 3 4 Woofer 3 3V_PWM Fig 3 3 Woofer 3 3 VA 8 9 ...
Page 75: ...4 12 10 11 4 AMP VOLTAGE Fig 4 2 AMP 12 V Fig 4 1 AMP PVDD 10 11 ...
Page 76: ...4 13 13 12 5 PWM Fig 5 2 Woofer PWM SW Signal Fig 5 1 Woofer PWM SW Signal 12 13 ...
Page 77: ...4 14 14 15 6 LED Fig 6 2 Pairing On Status Green LED Fig 6 1 Pairing Off Status Red LED 14 15 ...
Page 80: ...4 20 4 19 2 WOOFER AMP P C BOARD 3 WOOFER KEY P C BOARD TOP VIEW BOTTOM VIEW ...
Page 81: ...4 22 4 21 ...