1.6V
VC
3.6V
VC
Figure 20
Is pin 34 of IC701
more than 2.0V at
playing ?
*
Check circuit around pin 34 of
IC701.
*
Check digital signal pins 18, 19
and 20 of IC701.
*
Check FFC connector (CN701).
*
Pickup is defective.
No
Yes
Repair Item 2-A2: The lens does not move up and down.
Is waveform at
pins 13 and 16 of CN701 like that
shown in figuer 8 ?
*
Check FFC connector
from pickup.
*
Pickup is defective.
Is waveforn at
pin 5 (FEO) of IC701 like
that shown in figuer 9 ?
No
No
Yes
Yes
*
Check circuit around
IC701.
*
IC701 is defective.
*
Check circuit around
and soldering pin 16 of
IC701.
*
IC701 is defective.
*
IC702 is defective.
Figure 21
Is emitta of Q701
3.3V ?
*
Check soldering Q701.
No
Yes
Repair Item 2-A1: The laser does not emit.
A1
A2
19
Содержание ZD-3
Страница 1: ... without price ZD 3 MD CD SYSTEM SEP 2000 INDEX ...
Страница 48: ...Vo Vadj GND Vin 1 2 3 4 1 2 4 3 IC IC303 IC708 IC709 PQ15RW11 46 ...
Страница 57: ...IC707 S 80727AL AQ T1 2 VDD VSS 3 Parasitic Diode 1 OUT 1 2 3 55 ...
Страница 67: ...5P 6P 12P 210 116 114 117 300 118 250 2 2 250 1 2 8P 230 4P 3P UNIT ASSEMBLY 2 3 65 ...
Страница 68: ...122 122 122 122 9P 11P 2P 7P 6P 109 107 108 400 UNIT ASSEMBLY 3 3 66 ...
Страница 69: ...331 331 351 347 345 339 334 351 344 346 348 CASE UNIT 67 ...
Страница 70: ...315 316 317 318 305 303 303 304 323 304 306 16P 6P TOP CASE UNIT 68 ...
Страница 71: ...MD MECHANISM UNIT 69 ...
Страница 72: ...CD MECHANISM 70 ...