Read Sony CDP-LSA1 / MDS-LSA1 / STR-LSA1 Service Manual online
14
(Repair Tips)
When other devices are detected by the i.LINK terminal, signals will be output to the DATA0 to 3 terminals of PHY and LINK and CTL0/
1 terminal. If no signal is output to these terminals, check the clock input, power line, etc.
Fig. 2-1. Signals between PHY-LINK
(3) Packet data (LINK)
The handling of packet data input to LINK differs according to the data type. The data type of the packet data input is checked. If it is
music data which can be played back, it is sent to the playback circuit. If the data cannot be played back (for image, etc.), it will be ignored.
If it is self-addressed command data (LINC request, etc.), it will be transferred to the microprocessor.
If it is self-addressed command data (LINC request, etc.), it will be transferred to the microprocessor.
(4) Communication between LINK and microprocessor
When the i.LINK circuit connected to the AC power supply is started, communication will constantly be performed with the microproces-
sor using the 16 DATA terminals (Pins 38 to 54) of LINK, eight address terminals (Pins 63 to 70), and four control terminals (Pins 57, 58, 59,
and 61).
and 61).
When stopped
During playback
D3 terminal (LINK Pin 74)...2 V/div, 50 µs
CTL0 terminal (LINK, Pin 80)...2 V/div, 50 µs
When stopped
During playback
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