Test Point Values - Nokia NSD-6 Disassembly & Troubleshooting Instructions

NSD-6
Disassembly/Troubleshooting Instructions

Test Point Values

NOTE: Test Point layout pictures are at the back of the binder.
Test point Signal name
100 AFC
101 VR1
102 19.2 MHz
103 TX_LIM_ADJ
104 800 MHz PA Output
105 Tx VHF LO
106 Tx UHF LO 1 GHz
107 Rx VHF LO
108 LIM_P
109 RSSI
110 LIM_P
111 RX_GS
112 RX_IF_AGC
113 1900 MHz PA Output
114 FILT_SEL
115 Tx UHF LO 2GHz
116 Penta P5
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Characteristics
VCTCXO Control voltage
2.7v supply to VCTCXO
19.2 MHz from VCTCXO buffer
Detector demand voltage
RF output from PA check for short
with phone switched OFF
VHF LO to TIF (PCS 416.2 MHz /
CELL CDMA 346.2 MHz / AMPS
347.1 MHz)
UHF LO to Odyssey up converter IC
256.2 MHz VHF LO to RIF
450 KHz signal from RIF
dc voltage indicating signal level
into receiver
450 KHz signal into CAFÉ
0v or 2.7v for LNA OFF or ON
Dc voltage proportional to signal
level into receiver in CDMA mode
RF output from PA
Check for short with phone
switched OFF
0v or 2.7v for PCS High band or
Low band
UHF LO to Apache Up converter IC
0v or 2.7 from Penta P5 to PCS LNA
for LNA OFF or ON
Nokia Mobile Phones Ltd.
PAMS Technical Documentation
Signal destination
PDM from MAD4
CCONT to VCTCXO
VCTCXO Buffer to CAFÉ and PLL
IC's
PDM from MAD4 Pin 128 detec-
tor circuit at RF output
RF output from PA to Isolator
LO from PLL to TIF IC
LO from 1 GHz VCO to Odyssey
up converter IC
LO from PLL to RIF
RIF 450 KHz output to CAFÉ
RIF output to CCONT Pin A1 A to
D converter
RIF 450 KHz output to CAFÉ
Voyager down converter LNA
control from MAD4 Pin 2
AGC control voltage from MAD4
Pin 133 to RIF Pin 7
RF Output from PA to Isolator
Filter control line from MAD4 Pin
129
UHF LO from VCO to Apache up
converter N601 Pin 6
Control for PCS LNA from Penta
N303 Pin 9
Issue 1 04/01