Diagrams; Ic Pin Function; 1C601 System Control Microprocessor (Tmp47C1270An-H228) - Sony LBT-A590 Service Manual

3-1. IC PIN FUNCTION
*1C601 SYSTEM CONTROL MICROPROCESSOR (TMP47C1270AN-H228)
SECTION 3
DIAGRAMS
Pin No. Pin Name vo Function
1 VKK — | Negative power supply for the FL tube (FL601)
2—13 | s4—sis © | Segment signal output to the FL tube (FL601)
14— 17 | KO0— KO3 ce] Key scan signal output
18 TEST 1 | Test input (Fixed at "L" )
19 XIN I Main system clock input (8.388608 MHz)
20 XOUT O | Main system clock output
21 HOLD I Power failure detection input
22 RESET 1 | Reset signal input
23 IF COUNT NG oO F monitor output (IF count NG)
24 R60 1 | Key return input
25 R61 = Not used (connected to ground)
26,27 | R62, 63 1 Diode input terminal
28—31 | PIO— P13 O | Key scan signal output
32 GND = Ground terminal
33—35 | P20— P22 O | Key scan signal output
36 =| P23 O | Notused (Fixed at "H")
37 RELAY fe) Power ON/OFF control output to RY801
38 MUTING O | Muting signal output
39 TUNED IN I TUNED indication signal input
40 STEREO IN I STEREO indication signal input
41 SIRCS IN I _| Sircs signal input from the remote control receiver (IC602)
42 AUB OUT oO Audio bus output
43 AUB IN I Audio bus input
44 | CE © | Chip enable signal output to the PLL (IC51_LC7218)
45 SI I Data signal input from the PLL (IC51_LC7218)
46 so O | Data signal output to the PLL (IC51 LC7218)
47 SCK O | Clock signal output to the PLL (IC51 LC7218)
48, 49 poe = No connection
50—59 | TO--T9 ce) Digit signal output to the FL tube (FL601)
60—63 | So—S3 O | Segment signal output to the FL tube (FL601)
64 VDD —__| Power supply terminal (+5V)