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ステレオシステム Sony Walkman MZ-R900のPDF サービスマニュアルをオンラインで閲覧またはダウンロードできます。Sony Walkman MZ-R900 50 ページ。 Service manual
Sony Walkman MZ-R900 にも： 取扱説明書 (20 ページ), 仕様 (2 ページ), 限定保証 (1 ページ), 取扱説明書 (13 ページ)
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Pin No.
Pin Name
47
FE
48
AUX1
49
VC
50
ADIO
51
ADRT
52
AVD2
53
AVS2
54
ADRB
55
SE
56
TE
57
DCHG
58
APC
59
DSPVDD0
60
DSPVSS0
61
XTSL
62
DIN1
63
DOUT
64
DAPWMLP
65
DAPWMLN
66
DAPWMRP
67
DADT
68
ADDT
69
LRCK
70
XBCK
71
FS256
72
MVCI
73
DSPVDD1
74
ADFG
75
F0CNT
76
DIFVDD0
77
DIFVSS0
78
APCREF
79
LDDR
80
TRDR
81
TFDR
82
FFDR
83
FRDR
84
MCUVDD1
85
FGIN
86
FS4
SPRD/SPDU/
87
RTG0
SPFD/SPVS/
88
PWM3
89
SPDV/RTG1
90
SPDW/RTG2
I/O
I
Focus error signal input from RF amp (IC501)
I
Support signal (I
signal/temperature signal) input terminal (A/D input)
3
I
Middle point voltage (+1.2V) input terminal
O
Monitor output of A/D converter input signal Not used (open)
I
A/D converter the upper limit voltage input (fixed at "H" in this set)
—
Power supply terminal (for the analog) (+2.4V)
—
Ground terminal (for the analog)
I
A/D converter the lower limit voltage input (fixed at "L" in this set)
I
Sled error signal input terminal Not used ( fixed at "L")
I
Tracking error signal input from RF amp (IC501)
—
Connecting analog power supply of the low impedance (fixed at "H" in this set)
I
Error signal input for the laser automatic power control Not used (fixed at "H")
—
Power supply terminal (for DSP block) (+1.5V)
—
Ground terminal (for DSP block)
Input terminal for the frequency set up of the system clock "L": 45.1584MHz,
I
"H": 22.5792MHz (fixed at "L" in this set)
I
Input terminal of the record system digital audio signal
O
Output terminal of the playback system digital audio signal Not used (open)
O
D/A converter PWM output (L-CH right phase) Not used (open)
O
D/A converter PWM output (L-CH reverse phase) Not used (open)
O
D/A converter PWM output (R-CH right phase) Not used (open)
O
Audio data output to the external A/D, D/A converter (IC301)
I
Data signal input from the external A/D, D/A converter (IC301)
O
L/R sampling block signal (44.1KHz) output to the external A/D, D/A converter (IC301)
O
Bit clock signal (2.8224MHz) output to the external A/D, D/A converter (IC301)
O
11.2896MHz clock signal output to the external A/D, D/A converter (IC301)
I
Vibrate input for the digital in PLL from the external VCO Not used (fixed at "L")
—
Power supply terminal (for DSP block) (+1.5V)
I
ADIP duplex FM signal (20.05 1KHz) input from RF amp (IC501)
O
Filter cut off control signal output Not used
—
Power supply terminal (for DSP I/F) (+2.3V)
—
Ground terminal (for DSP I/F)
Control signal output to the reference voltage generation circuit for the laser automatic power
O
control
O
PWM signal output for the laser automatic power control Not used (open)
O
Tracking servo drive PWM signal output (–) to the motor driver (IC551)
O
Tracking servo drive PWM signal output (+) to the motor driver (IC551)
O
Focus servo drive PWM signal output (+) to the motor driver (IC551)
O
Focus servo drive PWM signal output (–) to the motor driver (IC551)
—
Power supply terminal (for the microcomputer block) (+1.5V)
I
FG signal input terminal for the spindle servo
O
176.4MHz clock signal output to the power control (IC601, IC901)
O
Spindle servo drive PWM signal output terminal (–) to the motor driver (IC551)
O
Spindle servo drive PWM signal output (+)
O
Spindle motor drive control signal output (V)/RTG output 1 to the motor driver (IC551)
O
Spindle motor drive control signal output (W)/RTG output 2 to the motor driver (IC551)
Description
Not used (open)
MZ-R900
35