4-6
ONE POINT REPAIR GUIDE
2. POWER ON ERROR (12 V, 5 VA)
Fundamental power check points
2-1. 12 V
1) Check 12 V at WFC602.
2) If 12 V is not checked at the point, then find PVDD at pin1 of WIC607.
3) 1), 2) is NG
Replace WIC607.
If you can’t check PVDD voltage, then you replace woofer SMPS board.
2-2. 5 VA
1) Check 5 VA at WFC601.
2) If 5 VA is not checked at the point, then find PVDD at pin1 of WIC606.
3) 1), 2) is NG
Replace WIC606.
If you can’t check PVDD voltage, then you replace woofer SMPS board.
< Woofer AMP board top view >
< Woofer AMP board top view >
12 V
12 V
at WFC602
at WFC602
PVDD
PVDD
at pin1 of WIC607
at pin1 of WIC607
PVDD
PVDD
at pin1 of WIC606
at pin1 of WIC606
5 VA
5 VA
at WFC601
at WFC601
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 ...