Jvc KDLX 555 R Service Manual
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Extracted text from Jvc KDLX 555 R Service Manual (Ocr-read)
Page 1
JVC
SERVICE MANUAL
CD RECEIVER
KD-LX555R
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Area Suffix
E ------ Continental Europe
TABLE OF CONTENTS
1 Precautions ............................................................................ 3
2 Disassembly method .................................................................... 5
3 Adjustment ............................................................................ 28
4 Description of major le ................................................................. 32
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD. No_49793
2003/5
Page 2
SE
CTION 4
Description of major ICs
4.1 BA6956AN (IC830, l6831) : Reversible motor driver
- Block diagram
TSD
CONTROL LOGIC
I_I
LL
LIJ
[E
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N
N
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O
- Pin function
(.0
.9.
I7_I
Z
Li.
Igl
U1
VCCE
we
H
GNDE
RINE
- Truth table
1-32 (No.49793)
Pin No Symbol Function FIN RIN OUT1 OUT2 MODE
1 VREF Output high voltage level control terminal H L H L Forward rotation mode
2 OUT2 Output terminal for motor L H L H Reverse rotation mode
3 RNF GND of driver division H H L L Break Mode
4 OUT1 Output terminal for motor L L OPEN OPEN Stand-by mode
5 VM Power supply for driver division
6 Vcc Power supply for signal division
7 FIN Input terminal for control logic
8 GND GND
9 RIN Input terminal for control logic