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KDC-9020R/MP919/PSW9521/X759
MICROCOMPUTER'S TERMINAL DESCRIPTION
SYSTEM MICROCOMPUTER uPD703033AGF-***-3BA (X25)
Pin 74 75 76 77 78 79 Avdd Avss Avref PHONE E2PROMDET MASK-SW1 Name I/O I I I I Purpose Positive power supply terminal. GND terminal. A/D converter reference voltage supply terminal. Phone detection terminal. E2PROM detection terminal. Mask mechanism position detection. Mask mechanism position detection. Mask mechanism position detection. Mask mechanism detection. FM noise detection terminal. S-meter detection terminal. RDS decoder DATA input terminal. RDS decoder OUAL input terminal. F/E IFC OUT input terminal. Muting request from CH. Request output to CH. RDS decoder CLK input terminal. Request input from CH. Communication request from Panel uCOM. Loading SW detection terminal. 12 cm disc detection SW terminal. Processing Operation Processing During Processing During Non-Operation STBY
. TEL muting: 1 V or less NAVI muting: 2.5 V or more. E2PROM present: "H". E2PROM absent: "L". Refer to the 01MASK mechanism position detection chart Refer to the 01MASK mechanism position detection chart Refer to the 01MASK mechanism position detection chart Mechanism present: "L". Mechanism absent: "H".
Models without RDS and RBDS: Connected to GND. Models without RDS and RBDS: Connected to GND. Station detected: 2.5 V or more. Request: "L". H Models without RDS and RBDS: Connected to GND. Requested: "L". H
93
CD-SW1
I
94 95 96 97 98 99
CD-SW2 N.C N.C CH-DATAC CH-DATAH CH-CLK
I O O
Loading start: "L". Take care that the logic in power OFF is different from Flip. 12 cm disc: "L". Take care that the logic in power OFF is different from Flip. L L
100 SC-DATA
10
Output Open. Not used. Output Open. Not used. DATA input terminal I from CH. DATA output terminal O to CH. CLK input/terminal I/O from/to CH. DATA line from I Panel uCOM.
