7
KDV-3241Y/MP4339
/MP4439/MP5032
YES
YES
NO
TU101(6, 17), Q307, IC301(10, 14)
YES
Checked the Tuner Vdd?
NO
IC401(39, 64), Q318, IC301(11)
YES
Checked the Tuner Vdd control?
NO
TU101(3, 7, 12, 16)
NO
TU101(14, 15), IC401(1, 2)
NO
TU101(1, 2)
NO
TU101(8), IC401(4)
NO
TU101(5), IC401(67)
Checked the Tuner Ground?
YES
Checked the I2C data?
YES
Checked the RF signal in?
YES
Checked the Mute Control?
Checked the SD level(RDS model)?
YES
YES
OK
Something wrong With the Tuner system?
Not available to Tuner?
YES
YES
NO
TU101(10, 11), IC601(5, 6)
YES
Checked the Tuner Signal out?
NO
TU101(8), IC401(4)
YES
Checked the mute?
NO
See the Sound Error correction Process.
Checked the E-VR & Power AMP?
YES
OK
Something wrong With the Tuner system?
Tuner no sound?
YES
YES
NO
TU101(4), IC401(55)
YES
Checked the S-METER level?
NO
TU101(19, 20), IC401(65, 83)
YES
Checked the RDS data?
OK
Something wrong With the Tuner system?
Not available to AF?
YES
YES
NO
TU101(19, 20), IC401(65, 83)
YES
Checked the RDS data?
OK
Something wrong With the Tuner system?
Not available to RDS function?
YES
YES
NO
JK901, CN910, CN503, CN901(15, 17),
IC601(11, 13)
YES
Checked the AUX Signal input?
NO
See the Sound Error correction Process.
YES
Checked the E-VR & Power AMP?
OK
Something wrong With the Tuner system?
AUX no sound?
YES
YES
NO
See the System error correction
Process with the key control.
YES
Checked the Eject Key defect?
NO
IC1202(1, 6)
NO
IC1202(7, 8, 2, 3). See Fig.9.
NO
CN1301(2, 4), SW1301, CN1202(13).
See Fig.9~12.
NO
IC1301(VDD33, VDD12, +3VA). See Fig.13.
NO
IC1301 VSS (1, 23, 35, 46, 63, 81, 100,
171, 180, 198, 208, 220, 245)
NO
IC401(23), IC203(5, 6) CN902(10),
IC1301 NRST(101), CN1601 M_RESET(10)
NO
X1301(1, 3). See Fig.14.
NO
IC401(84, 85, 86, 29), CN902(4, 5, 6, 7)
IC1301(84, 85, 86, 87)
NO
CN902(4, 5, 6, 7) CN1601(4, 5, 6, 7).
See Fig.15.
NO
CN1301(2, 4)
Checked the Loading Motor IC Vdd?
YES
Checked the Load/Unload Control?
YES
Checked the Load/Unload SW?
YES
Checked the MPEG VDD?
YES
Checked the MPEG Ground?
YES
Checked the MPEG Reset?
YES
Checked the MPEG X-tal?
YES
Checked the Main Micom Data Interface?
YES
Checked the Main Micom Data Interface?
YES
Checked the Disc in load switch?
YES
OK
Something wrong With the DVD system?
No Loading/Unloading?
YES
YES
NO
IC1301(161)
YES
Checked the MPEG Video Signal out?
NO
IC1603(3, 5). See Fig.30.
Check the 6dB Amplifier Vcc, GND?
YES
NO
IC1603(2, 4). See Fig.30.
Check the 6dB Amplifider In, Out?
YES
NO
IC403(6, 7, 8). See Fig.31.
Check the IC403’s Vcc & GND?
YES
NO
IC403(3, 4, 5). See Fig.31, 32.
Check the IC403’s IN, Out, Mute Signal?
YES
NO
TM1(1, 2)
Check the Brake Line?
YES
NO
CN403(1, 2)
Check the RCA Cable?
OK
YES
Something wrong With the DVD system?
Can hear the sound but not display on monitor?
4. Tuner Error Correction Flow Chart
5. AUX Error Correction Flow Chart
6. DVD Error Correction Flow Chart
TROUBLESHOOTING