Diagrams; Ic Pin Descriptions - Sony PMC-DR45L Service Manual

6-1. IC PIN DESCRIPTIONS

• CONTROL BOARD IC801 CXP82832-028Q (SYSTEM CONTROL)
Pin No. Pin Name
1 G2
2 G1
3 NC
4 C-SCOR
5 T-CNT (END)
6 REG.CHK
7 T-AMS
8 RMC
9 T-MODE
10 V-DA/LT
11 R-CE
12 V-CLK
13 R-CLK
14 R-DATA
15 R-COUNT
16 C-XLAT
17 C-CLK
18 C-DATA
19 C-OPEN.I
20 C-CLOSE.I
21 C-SCLK
22 RDS-CLK
23 RDS-DATA
24 SD
25 C-SQCK
26 C-SQSO
27 C-SENS
28 AVREF
29 KEY1
30 KEY2
31 KEY3
32 – 34 F-CD
35 T-STAT
36 VERSION
37 AVSS
38 RST
39 EXTAL
40 X'TAL
41 GND
42 TX
43 TEX
44 VDD
45 VFDP
46 NC
47 C-OPEN.O
48 C-CLS.O
49 SFT-CLK
50 C-RST
SECTION 6

DIAGRAMS

I/O
O GRID2 signal output
O GRID1 signal output
— Not used. (Fixed at "H".)
I SCOR signal input from the IC702 (CXD2587Q)
I T-COUNTER (T-END) signal input
I P-DOWN IN (B/UP) signal input
I TAPE AMS IN signal input
I Remote control signal input
I T-MODE SW signal input
O Serial data/latch signal output to the IC302 (BD3859FV)
O R-CE signal output
O Serial clock signal output to the IC302 (BD3859FV)
O R-CLOCK signal output
O R-DATA signal output
I R-COUNT signal input
O Serial latch signal output to the IC702 (CXD2587Q)
O Serial clock signal output to the IC702 (CXD2587Q)
O Serial data signal output to the IC702 (CXD2587Q)
I CD open switch signal input
I CD close switch signal input
O SCLK signal output to the IC702 (CXD2587Q)
I Serial clock signal input to the IC811 (BU1924F)
I Serial data signal input to the IC811 (BU1924F)
I LR signal detector terminal
I SUBQ clock signal input from the IC702 (CXD2587Q)
I SUBQ data signal input from the IC702 (CXD2587Q)
I Sens signal input from the IC702 (CXD2587Q)
— A/D converter Vref pin
I Key signal input 1
I Key signal input 2
I Key signal input 3
I CD test mode pin
I/O Tape status signal input/output
I Version read signal input
— Ground
I Reset signal input from the IC802 (PST9128-T)
I Clock oscillation input (8 MHz)
O Clock oscillation output (8 MHz)
— Ground
O Crystal connection for clock oscillation (32.768 kHz)
I Crystal connection for clock oscillation (32.768 kHz)
— Power supply pin
— Voltage for FDP
— Not used. (Open)
O CD open signal output
O CD close signal output
O Shift clock signal output
O Reset signal output to the IC702 (CXD2587Q)
– 24 –
Pin Description