Ic Pin Descriptions - Sony WX-C570 Service Manual

6-13. IC PIN DESCRIPTIONS

• IC301 µPD78058GC-F35-3B9 (SYSTEM CONTROL)
Pin No. Pin Name
1 VSM
2 NIL
3 SD-IN
4 AVSS
5 FM-ST
6 AM-ST
7 AVREF
8 PLL-SI
9 PLL-SO
10 PLL-CKO
11 PLL-CE
12 AMS
13 PLAY/AMS
14 F/R
15 MTL
16 BUS-SI
17 BUS-SO
18 BUS-CKI
19 BUS-CKO
20 TAPE-MUTE
21 DOLON
22 EQ-CE
23 EQ-CLK
24 DATA
25 VOL-CLK
26 VOL-CE
27 MUT
28 AMP-ON
29 AUX-MUT
30 C/B
31 PWR-SEL
32 TEST
33 VSS
34 NIL
35 POWER-ON
36 TUN-ON
37 FM-ON
38 AM-ON
39 NIL
40 CM-ON
41 TP-ON
42 LM-EJ
43 LM-LOD
44, 45 POS1, 0
46 BEEP
47, 48 POS2, 3
49 REL
50 RC-IN1
51 SUB-CE
52 SUB-DATA
53 SUB-CLK
I/O
I FM/AM common signal meter A/D conversion input
I Not used. (Connect to GND.)
I Station detector detection input
– GND for A/D conversion.
I/O Used in conjunction with stereo input/monaural output. (FM mode)
I AM stereo input
– Reference voltage power supply for D/A conversion.
I PLL serial data input
O PLL serial data output
O PLL serial clock output
O PLL serial chip enable output
I Music with/without detection input at AMS.
O TAPE AMS control output
O FWD/REV detection output
O METAL control output
I Serial data input (for SONY BUS)
O Serial data output (for SONY BUS)
I Serial clock input (for SONY BUS)
O Serial clock output (for SONY BUS)
O Tape mute control output
I/O DOLBY control input/output
O Equalizer control output (Not used.)
O Equalizer control output (Not used.)
O Serial data output
O Electronic volume serial clock output
O Electronic volume serial chip enable output
O System mute control output
O Power amplifier power control output
O Not used.
I/O DOLBY B/C select control input/output (Not used.)
I Power select initial setting
I Test mode setting input
– Microcomputer GND
I Not used. (Connect to GND.)
O System power control output
O Tuner power control output
O FM power control output
O AM power control output (Not used.)
I Not used. (Connect to GND.)
O Capstan motor control output
O Tape power control output
O Loading motor control output (Eject direction)
O Loading motor control output (Loading direction)
I Position signal detection input
O Buzzer control output
I Position signal detection input
I Reel table rotation detection input
I Rotary commander input
O Sub volume serial chip enable output (Not used.)
O Sub volume serial data output (Not used.)
O Sub volume serial clock output (Not used.)
– 70 –
Pin Description