Schematic Diagram - Sony D-E770 Service Manual

5-5. SCHEMATIC DIAGRAM

• Refer to page 9 for IC Block Diagrams.
• TOTAL CURRENT
PLAY : 160mA
STOP : 50mA
FF : 170mA
FR : 170mA
— 15 —
• Refer to page 7 for IC Pin Function Description.
CXD3027R
— 16 —
D-E770/EJ711/EJ715
• Waveforms
1 TP629 (RF) (PLAY MODE)
100 mV/DIV, 200 ns/DIV
350 – 650 mVp-p
2 IC601 od (XTAI)
500 mV/DIV, 20 ns/DIV
2.1 Vp-p
58.8 ns
3 TP802 (R4M)
1 V/DIV, 100 ns/DIV
3.4 Vp-p
237 ns
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1 / W or less unless otherwise
4
specified.
Note : Note :
The components identified by Les composants identifiés par
mark 0 or dotted line with mark une marque 0 sont critiques
0 are critical for safety. pour la sécurité.
Replace only with part number Ne les remplacer que par une
specified. pièce portant le numéro spécifié.
• U : B+ Line.
• Power voltage is dc 4.5 V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground
under conditions in service mode.
no mark : CD PLAY
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• 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 : CD PLAY (ANALOG OUT)
c : CD PLAY (OPTICAL OUT)
• Abbreviation
FR : French model
— 17 —