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Service Manual
7.UHF3 (350-400 MHz) Information
230
7.8.3 FGU
5VFGU,
3V3ARF, and 3V3DRF
are normal?
FGU check
Check the power
supply circuit.
VCO oscillates?
Q6007/Q7000 is normal?
[1]
Q6012/Q7003 is normal?
[2]
Replace
Q6012/Q7003.
Check peripheral
components of
Q6012/Q7003.
Replace Q6007/Q7000.
CV voltage is normal? [3]
VCO buffer circuit is
normal? [5]
Check the VCO
buffer circuit.
L6057/L7003 is normal?
[4]
Replace L6057/L7003.
Feedback output is
normal?
Check the
feedback circuit.
19.2 MHz crystal
oscillates?
Check the 19.2 MHz
crystal oscillator and
circuit.
SKY72310 clock is
normal? 6]
Check the data
circuit of the
control circuit.
Completed
No
Yes
Yes
Yes
Yes
No
No
No
Yes
Yes
No
Yes
No
Yes
No
Yes
Yes
No
No
No
Summary of Contents for RDR9000
Page 1: ...RDR9000U V Service Manual ...
Page 45: ...Service Manual 6 UHF1 400 470 MHz Information 35 6 4 PCB View PCB View Main Board Top Layer ...
Page 46: ...Service Manual 6 UHF1 400 470 MHz Information 36 PCB View Main Board Bottom Layer ...
Page 48: ...Service Manual 6 UHF1 400 470 MHz Information 38 PCB View Rear Board Top Layer ...
Page 146: ...Service Manual 7 UHF3 350 400 MHz Information 136 7 4 PCB View PCB View Main Board Top Layer ...
Page 147: ...Service Manual 7 UHF3 350 400 MHz Information 137 PCB View Main Board Bottom Layer ...
Page 149: ...Service Manual 7 UHF3 350 400 MHz Information 139 PCB View Rear Board Top Layer ...
Page 248: ...Service Manual 8 VHF 136 174 MHz Information 238 8 4 PCB View PCB View Main Board Top Layer ...
Page 249: ...Service Manual 8 VHF 136 174 MHz Information 239 PCB View Main Board Bottom Layer ...
Page 251: ...Service Manual 8 VHF 136 174 MHz Information 241 PCB View Rear Board Top Layer ...
Page 346: ...Service Manual 11 Packing Guide 336 11 Packing Guide Figure 11 1Packing Guide ...
Page 352: ...342 ...