Sanyo FISHER DVD-1500 Service Manual page 8

DVD P.W.BOARD OPERATION
3. Data reading
(1) The SLED control is performed by the control output "FMO" (TC9461, pin 48), which reaches the IC601 via the
IC605 and drives the SLED motor.
(2)The SPINDLE control is performed by the control output "DMO CD" (TC9461) in the case of a CD, and "DMO DVD" (TC90A41AF)
in the case of a DVD, which reaches the IC602 via the IC605, whose reference voltage is set by the DVD/CD* of the micon,
and drives the SPINDLE motor (brushless motor).
The reference voltage is 1.65 V for a DVD, and 2.1 V for a CD.
(3) The PLL control is conducted by the TC9461 for a CD, and by the TC90A41AF for a DVD.
(4) An output is in accordance with the respective disks.
CD :TC9461 serial data (BCK, CDDATA, LRCK, C2PO) output (CN802)
DVD:TC9461 serial data (BCK, CDDATA, LRCK, C2PO) and this are inputted into the ROM decoder (IC802), converted to the
MPEG decoder signals (parallel data) and then outputted (CN801).
DVD:TC90A41AF MPEG data:parallel signals (SD0-7, SERR, SBGN, SENB, SDCK and SREQ) are inputted into the ROM
decoder (IC802), decode the digital copy protection and are converted to the MPEG decoder signals (parallel data)
and then outputted (CN801).
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