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CT-S520, CT-S420
2.
NM93C46N
(IC703)
Memory
@ Pin Assignment
cS
Vee
SK
NC
DK
NC
DBO
GND
Top View
3.
LC7570 (IC702)
BLE Data conversion
@ Pin Function
WR
For the data in latch from the CPU
SCK
For the data in clock from the CPU
DAT1
Data in from the CPU ~
To Vcc +5V
All outputs L. REQUEST input
To GNDC
11
SELB
2-bit monitor switching selection
12
SELA
13
NRSS
| Not used
1 bit of the 2-bit Dolby NR selection
Mechanism solenoid power reduction
selection. H: ON
15
SOLB
ri
19
RECV
Meter amplifier DC output recovery fast.
H: ON
When BLE: H. Circuit selection
,
CONT to CD (for CD-SYNCHRO)
21 | TOCD | | PLAY to CD, REQUEST
30
3-bit 1/f high frequency boost amount
selection (3-bit output data=0 to 7)
@ Pin Function
[Pane [ Pavone [Funcom |
ae
cs
Chip Select
SK
Serial Data Clock
1
Cc
H
DI
Serial Data input
Serial Data Output
NC
NC
7
i See 4
vc
Power Supply
[Pave Prnens]
nao
=
[22 wbx | Wx retard are ON _|
asians [ECHO LEDane Hon |
Tae [aro [Ravn isbanms ron |
ac
SOUND-EQ type selection (2-bit)
Filter selection during BLE
Auto BLE compensation data output
Bias 2-bit
Auto BLE compensation data output
Mid-EQ 4-bit
Auto BLE compensation data output
High-EQ 4-bit
Auto BLE compensation data output
Level 4-bit
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