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CD-SW250DVD
7 – 2
From 7-1 Page
Is focus control signal output from pin 208 of IC3201 to pin 16 of
IC3001 ?
No
Check focus control signal line between IC3201 and IC3001.
Check M7V line.
Yes
No
Is focus control drive voltage output from pins 1 and 2 of IC3001
?
No
Is voltage of 7 V applied to pin 27 of IC3001 ?
Yes
Check that pin 29 of IC3704 is “H” and replace IC3001.
If pin 29 of IC3001 is “L”, check pin 160 of IC3201.
Yes
Is focus control drive voltage applied to the focus actuator termi-
nal ? (Pin 23 and 24 of CN3001)
No
Check line between IC3001 and focus actuator terminal. Check
CN3001.
Yes
Check connection of optical pickup cables.
If no abnormality is detected, replace the optical pickup mecha-
nism unit.
• “No Disc” is displayed during DVD playback (when CD is playable) ... When DVD laser does not light up.
Is control signal output from pin 15 of IC3101 ?
No
Check and replace IC3101.
Yes
Is voltage of 5 V applied to emitter of Q3105 ?
No
Check S5V line.
Yes
Is voltage of approx. 2.3 V supplied to pin 2 of CN3001 ?
No
Check around Q3105 and Q3101.
Yes
Check connection of optical pickup cables.
If no abnormality is detected, replace optical pickup mechanism
unit.
Note: The laser diode is easily damaged by static electricity.
Carefully check static electricity and electric leak of the measuring
instrument.
Содержание CD-SW250DVD
Страница 17: ...CD SW250DVD 2 10 APPLY GREASE PULL THE LEVER UNITIL REACH THE ARROW MARK 143 112 3 ...
Страница 18: ...CD SW250DVD 2 11 FIGURE 1 FIGURE 2 APPLY GREASE SLOT CLAMP SW ARM INSIDE BASE SLOT 152 142 118 4 ...
Страница 20: ...CD SW250DVD 2 13 APPLY GREASE AT HALF GEAR AREA ROTATE CLOCKWISE UNTIL REACH HERE MAXIMUM 6 129 ...
Страница 21: ...CD SW250DVD 2 14 CHANGE COLOR TO BLACK 150 151 148 7 ...
Страница 24: ...CD SW250DVD 2 17 10 148 147 146 145 ...
Страница 25: ...CD SW250DVD 2 18 APPLY GREASE WHEN FIXING ITEM 2 MUST FOLLOW AS SHOWN 121 144 130 11 ...
Страница 26: ...CD SW250DVD 2 19 FIGURE 1 FIGURE 3 FIGURE 2 APPLY GREASE SC141 APPLY GREASE 117 12 ...
Страница 29: ...CD SW250DVD 2 22 APPLY GREASE BEHIND THE LEVER NEED TO APPLY GREASE PULL IT THEN LEVER WILL MOVE IN 115 15 ...
Страница 34: ...CD SW250DVD 2 27 BIG SLOT FACING OUT 110 20 ...
Страница 38: ...CD SW250DVD 2 31 804 24 SCREW TORQUE 3 kgf cm 0 5 0 ...
Страница 46: ...CD SW250DVD 2 39 NO GAP HAVE GAP O K N G 32 ...
Страница 128: ...CD SW250DVD 28 17 SURROUND SPEAKER GBOXSA110AWM1 905x4 902 906 903 901 SP1 2 904x4 SP1 2 SP1 2 ...