3-3
Replace IC301.
Refer to Front Part
Check short
Reconnect it.
2. µ-COM Circuit
A. No Power
Does Logo appear
on the screen?
Is oscillation of
X501 normal?
Are IC503 Pins 193, 80
and 81 normal?
Does no DISC appear?
Does Hello
appear at FLD?
Is P5901
connected normally?
Is P5901 Pin 23 normal?
The waveform
on AD(00~21) of IC501
normal?
Are IC301 Pins 5, 26 normal?
Replace Main B/D.
Check the oscillation
Check short.
OK
Replace IC501
Check power.
(Refer to power)
If power is
normal
OK
POWER ON
1
1
YES
YES
YES
YES
YES
YES
YES
YES
A
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
A
Содержание T512C
Страница 29: ...3 19 3 20 TRACKING LOOP FOCUS LOOP SLED LOOP SPINDLE LOOP WAVEFORM 5 6 5 2 DVD DSP CIRCUIT DIAGRAM...
Страница 30: ...3 21 3 22 3 DRIVE RF CIRCUIT DIAGRAM TRACKING LOOP FOCUS LOOP SLED LOOP SPINDLE LOOP WAVEFORM 1 6 2 3...
Страница 31: ...3 23 3 24 4 MPEG CIRCUIT DIAGRAM Optical Coaxial out CVBS Y Pb Pr Componet Y C S VHS WAVEFORM...
Страница 36: ...3 33 3 34 8 A V JACK CIRCUIT DIAGRAM S VIDEO C AUDIO L AUDIO R OPTICAL COMP VIDEO S VIDEO Y...
Страница 39: ...PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE 3 39 3 40...
Страница 40: ...3 41 3 42 2 POWER A V FRONT P C BOARD LOCATION GUIDE...
Страница 41: ...3 43 3 44 3 KEY P C BOARD LOCATION GUIDE...
Страница 48: ...MEMO MEMO...
Страница 64: ...MEMO...
