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PDF Contains
Technical Data, Mechanical data, Detailed Circuit diagram with components value, PCB layout. Actual PCBs Print. Component List, Spare parts code list and Input output detail. It cover LBB1211, LBB1212, LBB1213, LBB1216, LBB1217.
It is the actual Service Manual for SQ10
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very good manual with clear electrical schemes. Very helpful to find wat was wrong inside my microwave.
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Hi, thankyou for providing the Nordmende Globetrotter original manufacturer's repair manual. Quality is very good and sharp - the PDF file was comfortably small to download. The only question is: why did it take so long to become ready for download?? Many thanks anyway, I fixed the fault in the radio thanks to the circuit.
regards: Nick
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This was super service.Ordered this manual and was reading the download an hour later
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as always, rapid and efficient, very good and clear prints
details clearly visible keep going this way!!!!!!
CD SECTION
Notes: 1. CD block basically constructed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise indicated. 3. Use the oscilloscope with more than 10 M� impedance. 4. Clean an object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks.
RF signal waveform
VOLT/DIV: 200 mV TIME/DIV: 500 ns (with the 10: 1 probe in use) level: 1.3 +0.25 Vp-p �0.20
S-Curve Check Connection:
BD board TP (FE) TP (VC)
oscilloscope
When observing the eye pattern, set the oscilloscope for AC range and raise vertical sensitivity. When a general remote commander is not used (1 Track Jump Check): Procedure: 1. Connect the oscilloscope to TP (TE) and TP (VC) on BD board. 2. Turned power switch on. 3. Put disc (YEDS-18) in and press the � button, and play the number five track. 4. Press the � button. (Becomes the 1 track jump mode) 5. Confirm that the level B of the oscilloscope's waveform and the A (DC voltage) of the center of the traverse waveform. Confirm the following:
CN101
+ �
Procedure: 1. Connect the oscilloscope to TP (FE) and TP (VC) on BD board. 2. Connect between test point TP (FOK) and GND by lead wire. 3. Turned power switch on. 4. Put disc (YEDS-18) in and turned power switch on again and actuate the focus search. (actuate the focus search when disc table is moving in and out.) 5. Confirm that the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 3.0 ± 1.0 Vp-p.
S-curve waveform
symmetry
A�B � 100 = ± 7 (%) 2 (A + B)
Center of the waveform B
1 track jump waveform
A
within 3.0 ± 1.0 Vp-p
B
A (DC voltage) 0V
6. After check, remove the lead wire connected in step 2.
symmetry
level: 1.3 ± 0.6 Vp-p
Note: � Try to measure several times to make sure that the ratio of A : B or B : A is more than 10 : 7. � Take sweep time as long as possible and light up the brightness to obtain best waveform.
Connection Location:
[BD Board] (Side A)
RF Level Check Connection:
oscilloscope (AC range)
CN102
BD board TP (RF) TP (VC)
+ �
IC101 TP (FOK) IC103
Procedure: 1. Connect the oscilloscope to TP (RF) and TP (VC) on BD board. 2. Turned power switch on. 3. Put disc (YEDS-18) in and press the � button. 4. Confirm that the oscilloscope waveform is clear and check RF signal level is correct or not.
Note: Clear RF signal waveform means that the shape ��� can be clearly distinguished at the center of the waveform.
TP (TE) TP (FE)
TP (RF) TP (VC)
� 17 �
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