3-5
ONE POINT REPAIR GUIDE
4. NO WIRELESS
4-1. Solution
Replace IC505 on MAIN board.(No 3.3 V)
4-2. How to troubleshoot (Countermeasure)
1) Please check externally status of Wireless board to board connection on your eyes.
(at CN506 and Wireless module)
2) Please check 3.3 V of WL_3V3 (at L509).
If 3.3 V is ok at L509, please check SPI signal (WL_SPI_CS/D0/WP/DI/CLK) of IC505 (pin1, 2, 3, 5, 6).
3) If you can’t have no signal, please replace IC505.
4) If 3) is OK, then proceed S/W update.
Update Wireless TX (Main set) and Wireless RX (Subwoofer) each.
4-3. Service hint (Any picture / Remark)
< MAIN board top view >
< MAIN board bottom view >
IC505
IC505
L509
L509
CN506
CN506
Содержание LAS454B
Страница 11: ...2 2 ...
Страница 15: ...2 8 ...
Страница 26: ...3 11 WAVEFORMS OF MAJOR CHECK POINT 1 CRYSTAL FIG 1 1 X501 24 MHz 1 FIG 1 2 X502 X701 24 576 MHz 2 1 2 2 ...
Страница 27: ...3 12 2 FLASH MEMORY FIG 2 VCC CS CLK DO 3 4 5 6 6 5 4 3 VCC CS CLK DO ...
Страница 29: ...3 14 4 USB FIG 4 1 USB_5V 11 FIG 4 2 USB D 12 FIG 4 3 USB D 13 11 13 12 ...
Страница 31: ...3 16 6 OPTICAL FIG 6 1 OPT_IN 17 FIG 6 2 OPT_DET 18 18 17 ...
Страница 34: ...3 19 AUDIO PWM 2 2 FIG 8 5 Front L 384 14 kHz FL FL 26 FIG 8 6 Front R 384 17 kHz FR FR 27 26 27 ...
Страница 35: ...3 20 28 30 29 9 AUDIO AMP FIG 9 1 AMP IC PVDD PVDD 24 V 28 FIG 9 2 PVDD GVDD AMP_PDN 1S 28 29 30 ...
Страница 48: ...3 46 3 45 2 MAIN P C BOARD DIAGRAM TOP VIEW BOTTOM VIEW ...
Страница 49: ...3 48 3 47 3 FRONT P C BOARD DIAGRAM TOP VIEW BOTTOM VIEW ...
Страница 56: ...4 7 2 AMP VOLTAGE FIG 2 1 Woofer PVDD PVDD 34 5 V 4 FIG 2 2 Woofer 12 V 5 4 4 5 ...
Страница 57: ...4 8 3 PWM FIG 3 1 Woofer PWM SW SIgnal 6 FIG 3 2 Woofer PWM SW SIgnal 7 7 6 ...
Страница 58: ...4 9 4 LED FIG 4 1 Pairing Off Status Red LED 8 FIG 4 2 Pairing On Status Yellow LED 9 9 8 ...
Страница 59: ...4 10 ...
Страница 66: ...4 24 4 23 2 WOOFER AMP P C BOARD 3 WOOFER KEY P C BOARD TOP VIEW TOP VIEW BOTTOM VIEW BOTTOM VIEW ...
Страница 67: ...4 26 4 25 ...