November 16, 2006 6881094C31-E
7-24 Troubleshooting Tables: List of Board and IC Signals
H1 AGND4 GROUND Yes
J1 AGND2 GROUND Yes
H2 MICIN_POS C534 Yes
J2 MICIN_NEG Virtual Ground No
* = Component located under a shield on NNTN4563, NNTN4819, & NNTN4717
Table 7-10. U501 MAKO IC Pinouts (for kit NNTN5567)
U301
Pin
No.
Description To/From Comment
Accessible
on Vococn
A2 PGLDO3 R593 2.5Vdc, sets V3 Level Yes
A3 TEST GND Yes
A4 VREF C571 Internal Voltage Yes
A5 BBP_CLK R436 1.68MHZ Clock at Logic Level Yes
A6 LOGIC_VDD U406 pin 5 2.9Vdc Yes
A7 VC_RX R403
Voice Rx Codec operates at Logic
Level Yes
A8 RS232_USB_X R581
Selects Either RS232 or USB mode,
Operates at Logic Level Yes
A9
USB2_OE_RCV_
RTS
TP_URTS1_
XRXD Output Enable, Active Low Input Yes
A10 UART2_RXD_OD TP_RXD2
UART Rx Digital Output at Logic
Level Yes
A11 TX_RX NC No
A12 XOUT Y502 pin 3 24.576MHZ Yes
A13 XIN Y502 pin 1 24.576MHZ Yes
B1 XTAL32_OUT Y501 pin 1 32.768KHZ RC Out Yes
B2 BAT_TYPE GND Yes
B3 SW_TYPE GND Yes
Table 7-9. U501 GCAP II IC Pinouts (Continued)
U501
Pin No.
Description To/From Comment
Accessible
on Vocon?
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