Onkyo DX-C300 Service Manual

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Pin No. | Symbol Function Pin No. | Symbol Function
1 FSW Time constant switching output terminal of 49 RAWE | Write enable signal output to external RAM
output filter of spindle motor
50 | RACS | Chip selector signal output to external RAM
» | mon. | ON/OFF control output terminal of spindle
motor 51 | C4M_ | Divider output of crystal. f=4.2336MHz
Drive output terminal of spindle motor. 52 vss _| Ground
3. | MDP | Rough control when mode CLV-S and phase
control when mode CLV-P 53 XTAL Input terminal of crystal oscillator
4 | mpg. | Drive output terminal of spindle motor. 4 | XTAO | Output terminal of crystal oscillator
Speed control when mode CLV-P
35 | MDL
s | EFM | EFM signal input terminal from RF amplifier 1 | Mode switching input terminals
37 | MD3
6 ASY Output terminal to control the slice level of
EFM signal 58 | SLOB | Code switching input of audio data output.
‘! LOCK GFS sampling terminal Mode switching input of audio data output.
59 | PSSL | Serial output at low level.
8 veoo | VCO output terminal 8.6436MHz when lock Parallel output at high level
to EFM signal
60 | APTR | Control output for aperture correction,
9 Vvcol VCO input terminal High level when Rch.
10 | TEST | ov Control output for aperture correction.
61 | APTL | High level when Lch.
PD Phase comparator output terminal of EFM
il 0 | signal and VCO/2 62. | DAo1 | PAO! (LSB of parallel sound output) output
when PSSL = H. CIF! output when PSSL = L
12 Vss Ground
: 2 : - 63. | DAo2 | DAQ2 output when PSSL = H.
Serial data transmitter clock input terminal from CIF? output when PSSL = L.
13 | CLK microcomputer |
+ 64 DA03. | DAO3 output when PSSL
14 XLT | Latch input terminal from microcomputer C2F1 output when PSSL
15 | DATA | Serial data input terminal from microcomputer 65 | pao4 | DA04 output when PSSL = H.
C2F2 output when PSSL = L.
16 XRST System rest input terminal.
eeaeee cs | ome | Bae sage ste
17 | CNIN | Tracking pulse input erminal
DAO6 output when PSSL
Inner condition output terminal correspond to or DAO6 | €2PO output when PSSL
18 | SENS | address
68 | pao7 | DAQT7 output when PSSL
19 | MUTG | Muting input terminal RFCK output when PSS
20 | CRCF | CRC check output terminal of subcode Q 69 | pang | DAOS output when PSSL =
WFCK output when PSSL = L.
a1 | Exc | Clock input terminal for serial output of
subcode DAO9 output when PSSL
70 | DA09 | pLCK output when PSSL
22 | SBSO_| Serial output terminal of subcode
DA10 output when PSSL = H.
23 | SUBOQ | Subcode Q output terminal nm DALO | UGFS output when PSSL = L.
24 SCOR Subcode sink SO + $1 output terminal n DAIL DA11 output when PSSL iF
GTOP output when PSSL = L.
25 | sack | Clock terminal to read the subcode Q
: - 73 | Voo | Power supply (5V)
26 | SQEX | Selector input terminal of SQCK
DAI2 output when PSSL =
27 | DOTX | Digital output terminal 74 | DA12 | RAOV output when PSSL = L.
Indicator output of lock condition of frame DA13 output when PSSL = H.
28: GFS | sync 75 | DAI3 | C4LR output when PSSL = L.
29 | DBos 76 | paiq | DA14 output when PSS = H.
2 | Data terminals of external RAM C210 output when PSSL = L.
32 | DBos 4
DAIS output when PSSL = H.
33 Voo | +5V 77 | DAIS | ¢210 output when PSSL = L.
34 | DBos 78 | DA16 | DATS (MSB of parallel sound output) output
2 | Data terminals of external RAM when PSSL = H. DATA output when PSSL = L
37 | DBOL
Strobe signal output. 176.4kHz when DF is on.
38 | RAOI 79 | WDCK | $8 2kHz when DF is off.
2 | Address output terminals of external RAM
48 | RAL 0 | LRCK | Strobe signal output. 88.2kHz when DF is on.
44.1kHz when DF is off.

Onkyo DX-C300 Specifications

General

Brand	Onkyo
Model	DX-C300
Category	CD Player
Language	English