JVC RC-QC7 Service Manual page 40

RC-QC7 seen |
Function
RESET input of CD microcomputer. This input is
vO controlled by the main microcomputer.
Function
ST input termimal from main microcomputer
Not connected.
Serial data input/output terminals from main
microcomputer
+
DSP and RF power supply monitoring input
Clock input form main microcomputer
[DOOR OPEN] switch input of charger mechanism
Status signal input terminal coming from DSP
(IC651: MN35510)
\ [DOOR CLOSE} switch input of charger
__j mechanism
Tracking servo leading - in signal input terminal
coming from DSP (IC651: MN35510)
Phote interruption switch input of charger
mechanism
Focus servo leading - in signal input terminal
coming from DSP (IC651: MN35510)
Not connected.
Sensor signal input terminal coming from DSP
(IC651: MN35510)
2
[+] input of tray motor of charger mechanism
Not connected.
[—] input of tray motor of charger mechanism
External clock output terminal for sub- code "Q"
resistor going to DSP (1C651: MN35510)
[+] input of cam motor of charger mechanism
Microcomputer command load signal output
terminal going to DSP (IC651: MN35510)
[—] input of cam motor of charger mechanism
Microcomputer command data output terminal
going to DSP (IC651: MN35510)
Sub- code "Q" data input terminal coming from
DSP (1C651; MN35510)
Microcomputer command clock signal output
terminal going to DSP (1C651: MN35510)
Not connected.
Reset output terminal going to DSP (IC651:
MN35510)
+
initial switch input of charger mechanism
Not connected.
1 Not connected
7 |NC
fences
REQ (e)
21 REQ output terminal to main microcomputer
22-| BLKCK { Sub- code block clock signal input terminal coming
from DSP (IC651: MN35510
@ 1C691,1IC692 : LB1641(Cam & Tray Moter Driver)
OUT! Vcc2 OUT2
j2_[8 {10
9
Pre- Driver
Fig.7-1
40 (No.10036)
Gland
System clock, 4.19MHz
System clock, 4.19MHz
5.0V power supply
Gland
Not conncted
P2 VCCl
7