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Description Display master request (Connected to MB90570 U.MREQ) Display data (Connected to MB90570 U.DATA) Slave data/request (Connected to MB90570 U.SREQ) Power supply +5 V Display clock (Connected to MB90570 U.CLOCK) To tuner LC7821 latch To tuner LC7821 data To tuner LC7821 clock Not used (Connected to ground) PLL data input Auto stop input Stereo input Ground AC power check Not used (Connected to ground) Not used (Connected to ground) Error output LC8904 Not used (Connected to ground) Not used (Connected to ground) Not used U or CED or J U or CED or J Not used (Not connected, open) Not used (Not connected, open) To LC8904AQ C-bit To LC8904AQ data To LC8904AQ latch To LC8904AQ clock Protector input To NJM2296 video select switch 4 To NJM2296 video select switch 3 To NJM2296 video select switch 2 To NJM2296 video select switch 1 IC muting (Not connected, open) Function muting Hardware standby (Connected to power supply +5 V) MD 2 MD 1 (Connected to power supply +5 V) MD 0 Reset Ground (Connected to ground) External ceramic filter 4 MHz is connected to this terminal External ceramic filter 4 MHz is connected to this terminal Power supply +5 V Flash memory rewrite (Connected to ground) Flash memory rewrite (Connected to ground) Tuner muting Surround muting 4/8 relay Not used
