Sony CDP-S37 - Page 12

3-5. CIRCUIT DESCRIPTION
IC6 (MSC6458) SYSTEM CONTROL MICROCOMPUTER
Table 1 Pin Functions IC6
Description of IC6 (MSC6458)
ICl101 has the following functions:
- Digital signal output to operation key
- Sub Q signal loading and processing
» Fluorescent display (FLD) control
- Servo circuit control
Pin Function
1 PLL SW Oe | "L” in play mode and "H” in search mode.
Ewe aes Command transfer of clock to SSP (IC3) and DSP (IC7).
DATA B20 Command transfer of data to SSP (IC3) and DSP (IC7).
D4 a fo | Command transfer of latch to SSP (IC3) and DSP (IC7).
PRGL F308 aI Command transfer of latch to DFIL {IC9).
ion.
ms SYNC OUT No connector (NC).
SENSE SSP (IC2) and DSP (IC3) sense information
Pa [onc [or [sine CC in etme
a A
a a
Te [ aes [oY i conection
Tie | max [0 | Sieade ite eal dec
ak ee es el
Tas [tao [0 [testing ctr ico
fc ror
ps 1 5—
se | | | et termina
:
a [mst [| wemetin
| 5 | oom |_| Ho conection wo.
a ee
| a7 | tier | 0 | No comection wo.
36 | to | 0 | Volume indicator
Pat See S FLD timing output.
Tan [6 [0 | np tining ott.
| 6 | | rtp timing oututs
pe | 6 | oO | Fup timing outowt,
| ae | 0 | mun timing outt,
| ae | 0 | mp timing cutout,
Ps || 0 | ip timing outst,
i ee tes “1 2. 4 FLD timing output.
Rat a ee No connection (NC).
ps | 6 | 0 | mip seenent outst,
9 | on | 0 | run seanent outout,
Lo | FLD seqment output.
ie ee se
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ee a ee
psa | 5 | 0 | rip seament cutouts
ze FLD seqment output
FLD seqment output
FLD seqment output.
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FLD seqment output.
positive(+) power supply (5V)
= 1 6—
3-6. IC BLOG
©IC3 CXA-108
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