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A good and useful manual. With these, We was abled to isolate and pin point the component that was causing the problem. The total time spent in troubleshooting is very much reduced.
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The quality of the manual is top. The transfer worked perfect and fast.
No problems at all. Recommendable
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Very good service for get any documentation. Fast and perfect quality.
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Excellent service manual with all the necessary info. :)
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The product dowload was delivered efficiently with emails to support its download availabilty. The contets of the manual was very eligible and of good quality. Will purchase from this site again!
CIRCUIT DESCRIPTION
TUNING VOLTAGE GENERATOR
BT BS TU H/L 1 16 BU
VREF Vcc
VCC6
IC500 MSC1169MS-K GND U/V 8 9 VH2 H/L R502 R501 R500 6 11 VH1 TU 7 10 VL1 IN 4 13 VL2 OUT 5 12 U1 BS 2 15
3 14 U2 BT
VREF
GND Figure 1 This circuit generates the DC tuning voltage BT for selecting a channel with a TU pulse being output from IC700. IC500 has 3 circuits for converting pulses to voltages; it selects one of VHF-L, VHF-H, or UHF, and causes the tuning voltage to be output from the OUT terminal (pin 12). Figure 2 and Table 1 show the conditions for selection. IC500 Inputs
VHF -L 11 VHF -H 12
Function U/V L L H H H/L L H L H VHF-L receiving VHF-H receiving UHF receiving UHF receiving
TU
OUT(BT)
UHF
9
10
Table 1
U/V H/L
Figure 2
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