Diagrams; Ic Pin Description; Circuit Boards Location - Sony PMC-R30L Service Manual

6-1. IC PIN DESCRIPTION

• IC801 CXP83232A-015Q (SYSTEM CONTROL)
Pin No. Pin Name I/O
1 REG I AC check input
2 C-SCOR I CD-SCOR input
3 RMC I SIRCS receiver input
4, 5 NC — Not used.
6 C-SENS I CD SENS-1 input
7 C-SENS2 I CD SENS-2 input
8 RDS-CLK O Tuner demodulator clock output
9 RDS-DATA O Tuner demodulator data output
10 C-XRST O CD system reset output
11 C-SQCK O Clock output for CD SUB-Q.
12 C-SQSO I CD SUB-Q input
13 A-MUTE O Mute signal output for audio.
14 R-ST I Stereo detection input
15 R-COUNT I Tuner PLL IC count input
16 R-DATA O Tuner PLL IC data output
17 R-CLK O Tuner PLL IC clock output
18 R-CE O Tuner PLL IC chip enable output
19 V-CE O Electrical volume chip enable output
20 V-DAT O Volume data output
21 V-CLK O Volume clock output
22 C-CLK O Clock output for CD-DSP command.
23 C-XLAT O CD-DSP command latch output
24 C-DATA O CD-DSP command data output
25 PA-CON O Power on/off control output
26 REG-CON O Regulator on/off control output. LED (STANDBY) control signal output.
27 C-MUTE O Mute signal output for CD.
28 BACKLIGHT-ON O Not used.
29 RDS-IND O Not used.
30 – 32 KEY1 – 3 I Key return signal input
33 VER I Mode setting terminal
34 C-DOOR I CD lid open/close detection input
35 NC — Not used.
36 9/10K I Not used.
37 SHIFT-CLK O Shift clock on/off output
38 RST I Reset signal input
39 EXTAL I Clock oscillation input (8 MHz)
40 XTAL O Clock oscillation output (8 MHz)
41 VSS — Ground (for A/D converter)
42, 43 NC — Not used.
44 AVREF I Reference voltage input (for A/D convereter)
45 AVSS — Ground (for A/D converter)
46 VL O LCD bias resistor current control terminal (Cut off at standby)
47 – 49 VLC3 – 1 — LCD bias power supply terminal
50 – 53 COM0 – 3 O LCD common signal output terminal
54 – 73 SEG0 – 19 O LCD segment signal output terminal
74 RADIO O Regulator on/off control output for radio block.
75 TAPE O Regulator on/off control output for tape block.
76 CD O Regulator on/off control output for CD block.
SECTION 6

DIAGRAMS

Pin Description
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Pin No. Pin Name I/O
77 – 88 SEG20 – 31 O LCD segment signal output terminal
89 VDD — Power supply (+ 5V)
90 NC — Connected to VDD.
91 VSS — Ground
92 TX O Crystal connection for clock oscillation. (32.768 kHz)
93 TEX I Crystal connection for clock oscillation. (32.768 kHz)
94 – 98 SEG32 – 36 O LCD segment signal output terminal
99 REC I Tape REC detection signal input (from SW301)
100 PLAY I Tape PLAY detection signal input (from S302)

6-2. CIRCUIT BOARDS LOCATION

BACK LIGHT board
CONTROL board
HEADPHONE board
KEY board
REC SW board
Pin Description
MAIN board
CD board
CD MOTOR board
POWER board
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