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Great service manual. Unfortunately on page no. 41 there are some details which i can't read.
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Wonderful service... doubt that I could have made the repairs to my turntable without this service manual. Great help!
Well worth the price paid!
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nice completed SERVICE MANUAL as the description THANK YOU !!!-
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The service manual is as described and received the link to the download sooner than expected. Great service, quality product. This site is a big help in the electronics repair business.
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Il service manual molto accurato. Rapidi nella risposta
PRECAUTIONS
To prevent damage of the thermal head caused by static electricity when assembling the chassis ass'y into the unit, the following steps must be followed; 1 : Turn the power switch off. 2 : Discharge the capacitor C18(2200µF) on the PCB L271-1. CN301 3 : Connect the FPC of chassis ass'y into a connector CN301 of PCB L271-2. 4 : Assemble the chassis ass'y. 5 : Turn the power switch on.
PCB L271-2
FPC
C18
LSI1
Chassis ass'y
ADJUSTMENT
Adjustment of low battery detection circuit
PCB L271-1
Figure-4
To adjust the threshold voltage of the low battery detection circuit, the following steps must be followed; 1 : Apply 6.2V + 0.1V / -0V to the battery terminals. 2 : Ground check pads CP45 and CP46. 3 : Adjust a pot VR1 so that the voltage between CP1 and CP2 is 0V ± 10 mV.
Multi-meter PCB-L271-1
+
CP2 CP1
VR1 CP46
BATT
-
CP45
+
6.2V (+0.1 / -0 V) Power supply
BATT +
GND
Figure-5 Setting the thermal head rank Set the thermal head rank with pads RNK1 and RNK2 on the PCB L271-1 according to the following conditions when replacing the chassis ass'y or thermal head. The head rank is indicated on FPC as following figure-6. Head rank A : RNK1=ON, Head rank B : RNK1=OFF, Head rank C : RNK1=ON, Head rank D : RNK1=OFF, RNK2=OFF RNK2=OFF RNK2=ON RNK2=ON
XXXXXXB
Head rank = B
XXXXXXB
Figure-6
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Chassis ass'y
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