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The manual was very clear and contained all the information I was looking for. My dishwasher is working again because of this servicemanual!
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Quality scan, great manual. I solved my problem with this manual.
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The AKAI 1720 model reel to reel tape recorder described in this Manual is quite an old unit - circa late 1960's. As a consequence, the description of the mechanical details - and adjustments thereof - is quite critical. The manual does this quite well. The schematics are also well presented and have detailed PCB overlays. Probably the only negative is that some half-tone detail has been lost from the original manual as it has been scanned in simple B&W.
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Perfect source for service manuals: fast and professional transaction; high quality, perfect readable and largely scaleable PDF; complete schemes, diagrams and spare part list. Tnx a lot, cu again!!!!
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I got your link from a friend and I must say that I am really satisfied with your service. Specially this B&O manual I didn't find anywhere on the web... but you could deliver it :-) . You deliver very fast and the copy is of good quality. So your webpage is bookmarked. Thanks
2-10. DP & DG Check 2-11. SCH Adjustment
2-10. DP & DG* Check
Measurement equipment Waveform/vector monitor Procedure 1. Supply a ramp signal (with chroma) from the signal generator (TSG-170A) to the ANALOG IN connector. 2. Set the waveform/vector monitor as follows. MODE : VECTOR DP & DG measuring INPUT : CH A n To change to the DP & DG measuring display, push the measure button and touch DP & DG item on the display (the display is a touch panel). Measuring point : ANALOG OUT connectors (BKPF-102 connector panel)
2-11. SCH Adjustment
Measurement equipment Oscilloscope Procedure 1. Supply 75% (SMPTE) color bars signal from the signal generator (TSG-170A) to the ANALOG IN connector. 2. Set the oscilloscope as follows. CH2 : 2 V/DIV AC TIME : 50 ns/DIV TRIG : CH1 (ANALOG OUT) or CH4 (EQ OUT) Measuring point : TP102 (E-4)/AD-147 Adjustment point : 1RV3 (E-4)/AD-147
A
DP DP < 1% TP102
50%
DG DG < 1%
A = 70 ±5 ns
*DP : Differential Phase
DG : Differential Gain 2-6 (E)
BKPF-101A
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