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It was very usefull, it is clear the quality is super, the price I paid is very afordable.
Generally speaking Iam very happy with this company.
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The manual was exactly what I needed, Good quality scans too. superb.
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I am so happy found this site as it consists of so many Manuls and easy to aquire. This onei s exactly what I wanted and much more as it has info on not only how to use the tuner but how to repair it as well. I will come here 1st before purchasing else where! Thanks owner-manual.com!
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Top class product, I printed it out on A3 paper and it is clear and very easy to follow.
Cheaper than buying a new radio!
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is part of the manual is very useful for repairing
Here are circuit diagrams
if there is damage, I recommend using this part of the
a complete list of circuit boards and components
2. POWER SUPPLY ON I/O BOARD
No 12V
YES
No 5VT
YES
Is the VCC (14V) supNO plied to Q164 Collector?
YES
Check D124 on SMPS Board and Replace
Is the VCC (5.3V) sup- NO plied to Q155 Emitor?
YES
Check 5.3VA on SMPS Board
Is there about 12.5V at NO ZD151 & Q164 Base?
YES
Check Q164 and Replace
Is there about 0V at D152 and Q152 Collector?
YES
NO
Check Q155 and Replace
Is the VCC (33V) supplied to Q162 Emitor?
YES
NO
Check D126 on SMPS Board and Replace
Is there about 5V at R180 and 0.7V at Q152 Base?
YES
NO
Check the �TIMER H� signal from µ-COM
Is there about 0V at Q162 Base?
YES
NO
Check Q162 and Replace
Check Q152 and Replace
Is there about 5V at R171 and 0.7V at Q156 Base?
YES
NO
Check the �PWR CTL H� signal from µ-COM
Check Q156 and Replace
No 5.2V
YES
No 33VT
YES
Is the VCC (5.3V) supplied to Q151 Emitor?
YES
NO
Check 5.3VA on SMPS Board
Is the VCC (33V) supplied to Q161 Emitor?
YES
NO
Check D126 on SMPS Board and Replace
Is there about 0V at D153 and Q156 Collector?
YES
NO
Check Q151 and Replace
Is there about 0V NO at Q152 Collector?
YES
Check Q161 and Replace
Is there about 5V at R171 NO and 0.7V at Q156 Base?
YES
Check the �PWR CTL H� signal from µ-COM
Is there about 5V at R180 and 0.7V at Q152 Base?
NO
Check the �TIMER H� signal from µ-COM
Check Q156 and Replace 3-4
Check Q152 and Replace
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