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Ver 1.2 2003.02 |
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| • Waveforms |
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Note on Printed Wiring Board: |
| Note on Schematic Diagram: |
| 1 IC801 2 (OSCO) | 4 IC501 rd (TE)(SL501) | 7 IC901 yd (CLK) |
| 0 IC301 8 (BCLK)(REC) | ||||||
• | X : parts extracted from the component side. | • | All capacitors are in µF unless otherwise noted. pF: µµF | (at the point of R806) |
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• | Y : parts extracted from the conductor side. |
| 50 WV or less are not indicated except for electrolytics |
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• | : Pattern from the side which enables seeing. |
| and tantalums. |
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(The other layers' patterns are not indicated.) | • | All resistors are in Ω and 1/4 W or less unless otherwise |
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| specified. |
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| Caution: |
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| • | % | : indicates tolerance. |
| 44.3ns |
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| 5.67∝s |
| 354ns | |||||||
| Pattern face side: | Parts on the pattern face side seen from | • | f | : internal component. |
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| 500mV/DIV, 20ns/DIV |
| 500mV/DIV, 1ms/DIV | 1V/DIV, 2∝s/DIV |
| 1V/DIV, 100ns/DIV |
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| (Side B) | the pattern face are indicated. | • | C : panel designation. |
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| Parts face side: | Parts on the parts face side seen from |
| Note: |
| Note: | 2 IC801 <z,/ (UOSCO) | 5 IC501 rs (FE)(SL502) | 8 IC862 8 (OSCOUT) | qa IC301 q; (LRCK)(REC) | ||||
| (Side A) | the parts face are indicated. |
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| (USB VBUS=5V) |
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| The components identified by | Les composants identifiés par |
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| (at the point of R823) |
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• | MAIN board is |
| mark 0 or dotted line with mark | une marque 0 sont critiques |
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| 0 are critical for safety. | pour la sécurité. |
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| However, the patterns of layers 2 and 3 have not been |
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| Replace only with part number | Ne les remplacer que par une |
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| included in this diagrams. |
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| specified. | pièce portant le numéro spécifié. |
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| 30.5∝s | ∝ | ||||||
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| 20.8ns |
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| 22.7 s | |
| * Replacement of IC501,IC801 on MAIN board requires a |
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| special tool. |
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| • | A : B+ Line. |
| 1V/DIV, 10ns/DIV |
| 500mV/DIV, 1ms/DIV | 500mV/DIV, 10∝s/DIV |
| 1V/DIV, 10∝s/DIV |
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| surface | • | Total current is measured with MD installed. | 3 IC501 9 (RFO)(TP1529) | 6 IC601 qk (CLK) | 9 IC301 9 (MCLK) |
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• Lead Layouts |
| • | Power voltage is dc 6 V and fed with regulated dc power |
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| supply from |
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| +side :TP1976(CN952 q;pin) |
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| :TP1953(CN952 1pin) |
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| • | Voltages and waveforms are dc with respect to ground in |
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| playback mode(servo on). |
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| 5.67∝s |
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| no mark : PLAYBACK(SERVO ON) |
| 88.6ns |
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| ∗ | : Impossible to measure | 500mV/DIV, 200ns/DIV | 1V/DIV, 2∝s/DIV | 1V/DIV, 40ns/DIV |
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Lead layout of conventional IC | CSP (chip size package) | • Voltages are taken with a VOM (Input impedance 10 MΩ). |
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| Voltage variations may be noted due to normal produc- |
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| tion tolerances. |
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•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc- tion tolerances.
•Circled numbers refer to waveforms.
•Signal path.
J : PLAYBACK
c : DIGITAL IN
F : ANALOG IN
f : RECORD
N : USB
*Replacement of IC501,IC801 on MAIN board requires a special tool.
•The voltage and waveform of CSP (chip size package) cannot be measured, because its lead layout is different form that of conventional IC.
✩When IC851 is damaged, replace the MAIN board.
38 38
