Schematic Diagram - Technics SH-DV290EG Service Manual

: Positive voltage line
: CD Playback signal line
: Negative voltage line

8. Schematic Diagram

9. Printed Circuit Board Diagram
10. Terminal Function of IC's
10.1. IC601(C2BBGF000425):System control/FL drive
Pin Mark I/O /
No. Division
1 KEY1 I
2 KEY2 I
3 SP IN I
4 SP A O
5 SP B O
6 SP C O
7 SA CS I
8 DSP RST O
9 DSP CS O
10 DSP SNS I
11 DSP I
ACK
12 DSP CK O
Function
Operation key1 signal input
terminal
Operation key2 signal input
terminal
A/D signal input terminal
from IC602
Band select signal output
terminal for IC602
Band select signal output
terminal for IC602
Band select signal output
terminal for IC602
Chip select signal input
terminal
Reset signal output terminal
for IC401
Chip select signal output
terminal for IC401
Sense signal input terminal
from IC401
Acknowledge signal input
terminal from IC401
Clock signal output terminal
for IC401
8