NGT—Checks and adjustments
148 NGT Transceiver System Technical Service Manual
RF unit voltages
The supply voltages for the RF unit are shown in Table 37 to Table 45.
Drawing 08-05266
Table 37: Supply voltages for the Audio Interface PCB in the RF unit (2010
only)
Supply Description Source
A Unregulated battery supply via Filter and Control PCB
A (protected) 2 A current-limited battery IC14
+10 V +10 V regulated supply IC9
+5 V +5 V regulated supply IC10
+5 VQ +5 V quiet for opamp bias IC10 (filtered)
+6 VSBY +6.2 V standby for CIB IC4, D9, D10
Drawing 08-05988 (sheet 1)
Table 38: Supply voltages for the Audio & Interconnect PCB in the RF unit
(2011 only)
Supply Description Source
A Unregulated battery supply via Filter and Control PCB
A (protected) 2 A current-limited battery F1
+10 V +10 V regulated supply via Filter and Control PCB
+5 V +5 V regulated supply IC7
+2.5 VQ +2.5 V quiet for opamp bias IC7 (filtered)
+5 VQ +5 V quiet for opamp bias IC7 (filtered)
+5 VSBY +5.4 V standby for handset D3, D4
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