Diagrams; Ic Pin Function Description - Sony XES-Z50 Service Manual

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7-1. IC PIN FUNCTION DESCRIPTION

MAIN BOARD IC501 mPD78P058GC-933-3B9 (SYSTEM CONTROLLER)
Pin No. Pin Name
1 ENC Ð
2 NCO
3 NCO
4 AVSS
5 NCO
6 NCO
7 AVREF1
8 NCO
9 NCO
10 NCO
11 NCO
12 EEP SCK
13 EEP SDA
14 BUSY-MA
15 BUSY-TU
16 UNISI
17 UNISO
18 UNICKI
19 UNICKO
TE
L 13942296513
20 BUS ON
21 SYS RST
22 KEY ACT
23 TX-SEL
24 NCO
25 NCO
26 NCO
27 CAUTION
28 TIMPOL
29 TEL MUT
30 VOL STP
31 NCO
32 MUTE
33 VSS
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34 NCO
35 NCO
36 NCO
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37 NCO
38 NCO
39 NCO
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SECTION 7

DIAGRAMS

I/O
I
Rotary encoder input from the rotary commander
O
Not used (open)
O
Not used (open)
Ñ
Ground terminal (for A/D conversion)
O
Not used (open)
O
Not used (open)
I
Reference voltage input terminal (+5V) (for D/A conversion)
O
O
Not used (open)
O
O
O Serial data transfer clock signal output to the EEPROM (IC515)
I/O
Two-way data bus with the EEPROM (IC515)
O Not used (open)
O
Not used (open)
I Serial data input from the bus interface (IC503) (for SONY bus)
O
Serial data output to the bus interface (IC503) (for SONY bus)
I
Serial data transfer clock signal input for the bus interface (for SONY bus)
Serial data transfer clock signal output to the tuner controller (IC502), bus interface (IC503)
O
(for SONY bus), and FM character multiple broadcast display controller (IC802)
Bus on/off control signal output to the tuner controller (IC502), bus interface (IC503) (for
O
SONY bus), and FM character multiple broadcast display controller (IC802) ÒLÓ: bus on
Reset signal output to the tuner controller (IC502), bus interface (IC503) (for SONY bus), and
O
FM character multiple broadcast display controller (IC802) ÒLÓ: reset
Key active control signal output terminal (for A/D conversion power control)
O
When KEY ACK (pin ^∞) is active, ÒLÓ is output to enable signal input
O
Not used (open)
O
O
Not used (open)
O
Input terminal to set whether a caution alarm (buzzer sounds if the front panel is not removed
I when accessory power is in off status) sounds or not
ÒHÓ: not sound, ÒLÓ: sounds (fixed at ÒLÓ)
Input terminal to set whether time polling is provided or not
I
ÒHÓ: provided, ÒLÓ: none (fixed at ÒLÓ)
I
Telephone mute signal input terminal At input of ÒLÓ, the signal is attenuated by Ð20 dB
I
Not used (fixed at ÒLÓ)
O
Not used (open)
O
Mute control signal output of the tuner audio signal ÒHÓ: mute on
Ñ
Ground terminal
O
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O
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O
i
Not used (open)
O
O
O
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