Goldstar ffh-2000ax Service Manual troub
TROUBLESHOOTING GUIDE
1. POWER PART
Turn power on.
PN302 5.6V check?
PN302 Defective.
IC703 Surrounding circuitry
defective.
IC703 defective.
IC301 defective.
IC801 defective.
IC301 defective.
•
PN808 defective.
•
Pattern defective.
•
X301 defective.
•
IC301 defective.
IC301 16, 46, 72, 90 input +5V
IC703 check?
• Pin 1 + 12V
• Pin 3 + 6.3V
IC301 Pin 79 power output?
IC301 Pin 97 HRST output?
IC801 Pin 13,15,17,4 Check?
IC301 Pin 12 Reset check.
OK
IC301 Pin 98,99,100,97 Check?
- 10 -
OFF
ON 5V
PCTL
HRST
13
15
98
99
100
97
17
4
NO NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
- 11 -
2. CD PART
DOOR OPEN/CLOSE
CHECK? (LOADING)
Is rotate turret?
(A) When laser does not light.
(B) When laser lights.
Is DISC play?
Is lead-in?
Is audio output?
2-1
2-2
2-3
2-4
2-5
- 12 -
2-1. DOOR OPEN/CLOSE PART(LOADING)
Door open/close?
IC809 Pin 2, 10 Output?
• ZD803 defective.
• +12V-CD defective.
•
IC809 defective.
•
2,10 pattern defective.
Pick-up MOTOR? Pick-up defective.
OK
• CLOSE leaf s/w defective.
• IC801 Pin 2, 3 defective.
• ZD803 (4.7V)?
• IC809 surrounding circuitry
check?
IC809 Pin 5,6 input?
56
OPEN L H
CLOSE H L
NO
NO
NO
NO
YES
YES
YES
YES
- 13 -
2-2. TURRET PART
OK
Is Rotation turret?
Limit S/W 0V(LOW) check?
IC801 Pin 47, 51, 93, 94 check?
IC808 Pin 15, 16, output check?
PN802 input check?
Pick-up check?
Pick-up defective.
IC808 Pin 11, 12 output
pattern defective.
PN805 connector check.
IC801 DATA, CLK, XLT check?
IC801 defective.
•
IC801 Pin 20, 21, 23
Pattern defective.
•
IC827 defective.
•
IC827 X-TAL Pin 8, 9
defective.
IC827 36, 37, 38 check?
IC806 Pin 43 output check?
IC808 Pin 11, 12 output check?
• IC808 Pin 10 pattern
defective.
• IC806 defective.
Down leaf S/W(PN804) 0V
(LOW) check?
leaf S/W defective.
• IC801 defective.
• IC801 Pin 47, 51, 93,
94 pattern defective.
• IC806 Pin 35, 36, 37
input defective.
• IC806 defective.
• IC808 defective.
• IC808 Pin 9, 14 input
defective.
• IC808 Pin 15, 16,
output defective.
NO NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
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