Kenwood KDV-3241Y, Руководство по обслуживанию

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8
KDV-3241Y/MP4339
/MP4439/MP5032
YES
YES
NO
IC1301(VDD33,VDD12,+3VA). See Fig.13.
YES
Checked the Input voltage of MPEG IC?
NO
IC1301 VSS (1, 23, 35, 46, 63, 81, 100,
171, 180, 198, 208, 220, 245)
Checked the GND Condition of MPEG IC?
YES
NO
IC401(23), IC203(5, 6) CN902(10), IC1301
NRST(101), CN1601 M_RESET(10)
Checked the MPEG RESET?
YES
NO
X1301(1, 3). See Fig.14. Check the MPEG X-tal?
YES
NO
IC401(84, 85, 86, 29), CN902(4, 5, 6, 7)
IC1301(84, 85, 86, 87)
Checked the Main Micom Data Interface?
YES
NO
CN902(4, 5, 6, 7), CN1601(4, 5, 6, 7).
See Fig.15.
Checked the Main Micom Data Interface?
YES
OK
Something wrong With the DVD system?
Front LCD : “INIT” Display?
YES
YES
YES
No Spindle Motor Operating?
NO
IC1201(22, 27, 43) Checked the Spindle Driver IC Vdd?
YES
NO
IC1201(4, 16) Checked the Spindle Driver IC VHALF?
YES
NO
IC1201(36, 38, 41) Checked the Spindle Driver IC GND?
YES
NO
IC1201(37, 39, 40). See Fig.16. Checked the A1, A2, A3 of The Driver IC?
YES
NO
IC1201(27~33). See Fig.17.
NO
IC1201(5). See Fig.17.
Checked the Hall Bias Signals?
Checked the spindle motor control?
YES
YES
OK
Something wrong With the DVD system?
No Reading & “FILE CHECK” DISPLAY?
YES
YES
YES
Checked the Limit SW?
NO
IC1201(18). See Fig.19.
NO
CN1202(13), IC1301(75). See Fig.18.
Checked the Motor DRV mute control?
YES
NO
IC1201(10). See Fig.20. Checked the focus control?
YES
NO
FMON0. See Fig.20. Checked the focus error level out.(FE Mon)?
YES
NO
IC1201(9). See Fig.21. Checked the tracking control?
YES
NO
FMON1. See Fig.21.
NO
IC1301(117). See Fig.22.
NO
IC1201(6, 7). See Fig.23, 24.
Checked the Tracking error level out.(TE Mon)?
Checked the RF signal out check?
Checked the sled motor control?
YES
YES
YES
OK
Something wrong With the DVD system?
No Reading & “FILE CHECK” DISPLAY?
YES
YES
YES
Checked the MPEG Audio DATA out?
NO
IC1401(4, 5, 6, 9, 10). See Fig.25.
NO
IC1301(172, 173, 174,175)
Checked the DAC Vcc,Vdd, GND?
YES
NO
IC1401(1, 2, 3, 7, 8, 16). See Fig.26, 27. Checked the DAC signal In/out?
YES
NO
IC1301(178), IC1401(11, 12). See Fig.28.
Checked the DAC Mute?
YES
NO
IC1402(4, 8). See Fig.29.
Checked the OP AMP VDD, GND?
YES
NO
IC1402(1, 2, 6, 7). See Fig.29.
NO
See a Sound Error correction Process.
Checked the OP AMP Signal in/out?
Checked the E-VR & Power AMP?
YES
YES
OK
Something wrong With the DVD system?
DVD/CD no sound?
TROUBLESHOOTING