Upc78L05J-T (Ic191) : Three Terminal Voltage Regulator; Upd780024Agkb62 (Ic251) : Unit Microcomputer - JVC BC72 Service Manual

VS-DT7R

4.4 UPC78L05J-T (IC191) : Three terminal voltage regulator

4.4.1 Terminal layout

4.5 UPD780024AGKB62 (IC251) : Unit microcomputer

4.5.1 Terminal layout
4.5.2 Pin function
Pin No. Symbol I/O
1 P50/A8 -
2 P59/A9 -
3 MCS O
4 MRDY I
5 CDINDEX -
6 CDEMP -
7 CDTNO -
8 CDCOPY -
9 VSSO -
10 VDDO -
11 P30 -
12 P31 -
13 P32 -
14 /DRMUTE O
15 SUBQ I
16 P35/SO31 -
17 SQCK O
18 KCMND I
19 MSTAT O
20 KCLK I
21 RXDO I
22 TXDO O
23 P25/SCKO -
24 VDD1 -
25 AVSS -
26 VDTLV I
27 P16/ANI6 -
22
Connect to ground
Not use
Synchronous/asynchronous output
Ready signal input
Not use
Not use
Not use
Not use
Ground terminal
Power supply terminal
Not use
Not use
Not use
Mute signal output
Sub code Q data input
Not use
Clock output for sub code Q register
Command signal input
CD control status output
CD control command clock input
Command input
Status output
Connect to ground
Power supply terminal
Ground terminal
Sensitivity adjustment for vibrating detection
Not use
4.4.2 Circuit diagram
Function