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This service manual of the old video cassette recorder VT-LC50EM is very good readable even the tiniest numbers (i.e. IC-pins). The circuits are very clear. Many details of the schematic are very good described but in GERMAN language. Many schematic details - but complete at all. Common background information of several details are enclosed and physical knowledge of the TFT liquid crystal display for example. The manual lacks PCB drawings. If you understand german I would recommend this manual for you.
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Hi, this is a very clear manual, nice copy, not quite up to the standard of the very best available but better than many others. I think the price was especially fair for a hard to find manual and I would certainly use this manual seller again. Recommended.
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This schema available for me in good condition. I would highly recommend.
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Thanks for this "hard to find" service manual.
I apreciate the good quality of scanning and the pages scanned in A3 format.
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Helpd me mont a new carradio when prewius mont was a mess.
SJ-48G-S/N SJ-51G-S/N SJ-55G-S/N
2. DEFROSTING (1) No defrosting operation is necessary No defrosting operation is necessary. As this machine is so designed that a built-in evaporator cools air and a fan circulates cooled air, neither the freezer nor the refrigerator is frosted, though the evaporator is frosted. The frosted evaporator is defrosted automatically due to the function of defrosting timer and heater, requiring no defrosting operation.
S O U R C E
(2) Where is melted ice brought 1. Melted ice is brought into the evaporating pan at the bottom of the set and is evaporated here by the heat of sub condenser. 2. Be sure that the evaporating pan is inserted correctly and is level.
(3) The following circuit diagrams in the table show automatic defrosting function of the refrigerator with timer and defrost thermostat. Operation 1. Cooling (Normal) Electric diagram
Defrost thermostat ON Compressor running Timer motor running Thermostat Timer contact
Description The integration timer integrates running time of the compressor. When it reaches 10 hours 50 min. at 50Hz, the timer contact is changed to start defrosting.
Thermo. fuse
Defrost heater
TM
COMP
Defrost thermostat (ON)
Figure F-3. 2. Defrosting
(Time 20 to 30 min.)
Thermostat Defrost thermostat ON Compressor stops Timer motor stops Timer contact
Thermo. fuse
Defrost heater
TM
COMP
The timer contact is changed to start defrosting, the timer motor stops, and power is supplied to the defrost heater. It takes about 20 to 30 min. to defrost. The defrost time will vary depending upon the amount of frost.
Defrost thermostat (ON)
Figure F-4 . 3. Drain
(Time approx. 5 min.)
Thermostat Defrost thermostat OFF Compressor stops Timer motor running Timer contact
T i e m t o r
Thermo. fuse
When the defrost thermostat turns OFF, the timer motor starts running. During the operation time(4 min. 20 sec. /50Hz) defrosted water is drained outside the refrigerator.
Defrost heater
TM
COMP
Defrost thermostat (OFF)
Figure F-5. 4. Cooling (start)
(Time approx. 5 min.)
Thermostat Defrost thermostat OFF Compressor running Timer motor stops Timer contact
Thermo. fuse
Defrost heater
TM
COMP
Timer contact is changed to cooling operation and the compressor starts running and the timer motor stops. Defrost thermostat contact becomes ON when it's cooled. And the timer motor starts running. (Figure F-3.)
C m p e s o r
S O U R C E
Defrost thermostat (OFF)
Figure F-6. 10
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