Timewave PK-232SC User manual

1
PK-232SC
Operating Manual
Note: This manual covers the features added with the SC version of the PK-232.
The main PK-232 manual describes the modes and features found in the
original PK-232 and PK-232MBX. They are marked with an “*”.
The DSP manual supplement describes the DSP board features.

2
WARRANTY TIMEWAVE TECHNOLOGY INC.
LIMITED ONE YEAR WARRANTY
WHO IS COVERED This warranty is extended only to the original purchaser of the A.06118.
WHAT WE WILL DO
If your A.06118 fails in normal use because of a defect in workmanship or materials
within one year of the date of purchase, we will repair or replace (at our option) the
equipment at our factory without charge to you. Timewave will pay for the return of the
warranty-repaired unit to you.
WHAT YOU MUST DO
First, double check your connections and operating procedure. If you're certain that the
unit is faulty, notify Timewave Customer Service immediately. If Timewave is unable to
resolve the problem by telephone or email, we will give you an RMA number and ask
you to return the unit. You must pay all shipping and insurance charges for returning the
unit to our factory.
WHAT IS NOT
COVERED
We cannot be responsible for damage caused by accidents, abuse, misuse, improper
installation, or unauthorized attempts to repair the unit. This warranty does not cover any
parts of the PK-232 except the A.06118.
SERVICE WARRANTY
Timewave service work performed in connection with this warranty is warranted to be
free from defects in materials and workmanship for 30 days from the date of repair. All
other terms of the limited warranty apply to the service warranty.
HOW TO CONTACT TIMEWAVE
Contact Timewave Customer Service by telephone at [phone] or by FAX at (651)
489-5066.
Mailing and shipping address is: 27 Empire Drive, Suite 110, St. Paul, MN 55103
email: [email protected]m
[e-mail]
[e-mail]
web: www.timewave.com
TIMEWAVE MAKES NO OTHER WARRANTY, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
©2001, 2005, 2011 by Timewave Technology Inc., St. Paul, MN USA

3
Table of Contents
Overview...................................................................................................................................... 4
PK-232SC Block Diagram ............................................................................................................. 5
Front Panel .................................................................................................................................. 6
Rear Panel.................................................................................................................................... 8
Operation .................................................................................................................................. 12
PC USB Connection.................................................................................................................... 12
USB device driver....................................................................................................................... 12
Power......................................................................................................................................... 12
Radio.......................................................................................................................................... 12
PK-232SC Ports .......................................................................................................................... 12
PK-232SC Control....................................................................................................................... 13
Rig Control ................................................................................................................................. 13
USB Audio Sound Card .............................................................................................................. 13
SC Board Jumper Settings.......................................................................................................... 14
Data Sheet ................................................................................................................................. 15

4
Overview
The PK-232SC is the latest generation of multimode data controllers built upon the solid
foundation of the legendary PK-232. The PK-232SC features an expanded interface to
connect and control your radio transceiver, station accessories and computer.
The key to the new PK-232SC is a single USB cable from your PK-232SC to your
computer. No other connection is necessary. Note the PK-232SC block diagram in
Figure 1. The USB cable from the computer connects to a four port USB hub inside the
PK-232.
Port 1 of the USB hub connects to a dual USB-to-UART bridge.
One of the UART serial ports connects directly to the PK-232SC UART serial port. This
shows up on your computer as a standard COM port. Your software terminal program
connects to this COM port to control the PK-232SC.
The other UART serial port is the rig control port. This optically isolated port supports
Icom CI-V, Yaesu CAT, Kenwood logic level, and RS-232 connections. This shows up
on your computer as an enhanced COM port. Your software rig control program controls
your transceiver.
Port 2 of the USB hub connects to a USB Audio sound card inside the PK-232SC.
The sound card audio is transformer isolated from the USB circuitry. The sound
card/PK-232 switch or a software command selects either sound card transmit audio or
PK-232SC transmit audio. Receive audio from your transceiver is always connected to
both the sound card receive audio and the PK-232 receive audio.
Ports 3 and 4 of the USB hub connect to a dual USB jack on the back panel of the
PK-232SC. Use these jacks for rig control of USB-equipped transceivers and for other
USB station accessories.
A new feature in the PK-232SC is an instant reset switch. A quick flick of the switch
when the power is off resets the PK-232SC to factory default condition.

5
PK-232SC Block Diagram
Radio XCVR
Computer
PK-232 CPU
System Block Diagram
PK-232SC
Multimode Controller
USB
USB-Audio
Sound Card
USB
Audio switching
matrix
Data
Audio
Rig control data
Rig
Control
Serial Data
USB
Rig Control I/O
Serial data
USB
Hub
USB
PTT,
CW, FSK
Input
USB
to
UARTx2
USB
Control
PK-232SC
PK-232 Modem
Audio
SC
Data
Audio
Data Audio
PK-232
Data
Audio
PK-232 PTT, CW,
FSK Output
Aux USB Port
Aux USB Port
SC / TNC
Switch
SC / TNC
Switch
Figure 1

6
Front Panel
1. OVL LED
2. DCD LED*
3. THRESHOLD control*
4. TUNE LED bar*
M– Mark
S– Space
5. STATUS LEDs*
6. MODE LEDs*
7. RADIO 1 / RADIO 2 switch*
8. ON / OFF Power Switch*
9. SC LED
10. PK-232 LED
11. SC / PK-232 panel switch
1. Blue SC LED on – The SC mode is on if:
a) the switch is set to left
OR
b) Software has selected the SC mode (using SC command sequence)
1
2
3
4
5
6
7
8
9
10
11

7
2. Amber PK-232 LED on – The PK-232 mode is on if the switch is set to the
right.
3. If both blue and amber LEDs are on at the same time, you have selected
the SC mode with software control and have set the panel switch to PK-232
mode.
The sound card mode (blue LED) is active if it is selected with either the panel
switch or the software control. The software control will override the front
panel switch PK-232 mode selection.

8
Rear Panel
1) Reset
Resets PK-232 to factory default (baudot mode, erases memory)
Press once momentarily with power off.
2) Power
Power jack for +13.5 VDC @ 750 Ma. (5.5mm x 2.1mm)
3) RX-IN Audio 1*
3.5 mm mono phone jack
Tip – receive audio from radio
Ring & Sleeve – Ground
4) Radio 1*
Five pin IDC flat connectors
1 – receive audio from radio
2 – transmit audio to radio
3 –Squelch
4 – Ground
5 – PTT
5) Radio 2*
Five pin IDC flat connector
1 – receive audio from radio
2 – transmit audio to radio
3 –Squelch
4 – Ground
5 – PTT
Ring – ground/shield
3
4
5
6
7
8
1
2
10
11
12
13
14
15
16
17
18
19
22
21
20
24
23
9

9
6) RX-IN Audio 2*
3.5 mm mono phone jack
Tip – receive audio from radio
Ring & Sleeve – Ground
7) Scope & FSK*
Five pin DIN connector
1 – FSK Normal output
2 – Ground
3 –Mark signal to oscilloscope
4 – FSK reverse output
5 – Space signal to oscilloscope
8) EXT Modem*
Five pin IDC flat connector
9) Key Out - *
Morse keying output to legacy transmitters with negative voltage on their
Morse key inputs.
10) Key Out + *
Morse keying output for newer transceivers and transmitters that use
positive voltage on their Morse key inputs.
11) Aux Audio
3.5 mm stereo phone jack
Tip –Sound card audio out
Ring 1 – Sound card audio in
Ring 2 – ground/shield
Note 1 : Rig Control - 12), 13) & 18)
Appears as an enhanced COM port on PC.
Connect only one of the three connectors at one time for proper RX/TX
operation.
Exception: DTR connection from Logic Level port can be used with
any RX/TX connection. Software determines function.

10
12) Logic Level Rig Control –See Note 1!
8 pin miniDIN female
1 – RXD - logic level data input from radio
2 – TXD - logic level data output to radio
3 – RTS – logic level data control output to radio
4 – CTS - logic level data control input from radio
5 – DTR – control output to radio from Rig Control COM
port – use for PTT or positive CW keying – 30V/20mA MAX!
6 – Ground
7 - Short to pin 8 for older Kenwood logic level radios
8 - Short to pin 7 for older Kenwood logic level radios
13) CAT/CIV Rig Control –See Note 1!
3.5 mm stereo phone jack
Tip –RX logic level data input from radio
Ring 1 – TX logic level data output to radio
Ring 2 – ground/shield
14) PC USB
Five pin USB miniB
Connect to PC USB port
15) AFSK Out Level
PK-232 Transmit data audio level adjustment
16) SC LED
Upgrade devices only – LED on indicates the sound card mode is selected.
17) SC /TNC switch
Upgrade devices only – switches between sound card and PK-232 modems.
18) RS-232 rig control – See Note 1!
DB-9 male
1 - NC
2 -RX
3 - TX
4 - NC
5 - Ground
6 - NC
7 – RTS
8 - CTS
9 - NC

11
19) Aux Out Level
Adjusts only sound card auxiliary output level
20) USBx2
Two USB Type B jacks for USB 2.0 compatible devices. Maximum 100 mA.
each unless 5VDC power supply is connected.
21) +5VDC ONLY!
Do not connect any other voltage to this jack!
Center of jack is positive polarity.
5 Volts DC only @ 2A for powered USB hub operation only
Required only for USB devices that draw greater than 100 mA.
To use this jack, you must change a jumper inside the PK-232SC.
22) Aux in Level
Adjusts only sound card auxiliary input level
23) SC TX level
Adjusts only sound card output level
24) SC RX level
Adjusts only sound card input level

12
Operation
Note: This manual covers the features added with the SC version of the PK-232.
The main PK-232 manual describes the modes and features found in the
original PK-232 and PK-232MBX. The DSP manual supplement describes
the DSP board features.
PC USB Connection
Connect the PK-232SC to an USB 2.0 compatible port on a computer with a single USB cable (USB miniB
to USB A). No other computer connections are required. The computer USB port must be capable of
supplying full USB power (5.0 Volts @ 500mA.) If a USB hub is used, it must be a powered hub.
USB device driver
The device drivers for Windows XP/VISTA/7 will load automatically when the PK-232SC is connected to
your Windows PC if it is connected to the internet. The drivers are also found on the CD distributed with
the PK-232SC and on the Timewave web site (www.timewave.com.) Other drivers are available for Linux
and Apple computers. Please contact Timewave or visit the Timewave website for further information.
Note: This device driver is different from previous PK-232/USB device drivers. The older drivers will not
work for the PK-232SC.
Power
Connect the PK-232SC to a +13VDC @ 750 mA. power supply. Press the PK-232SC power switch to the
IN position. This connection is the same for all models of the PK-232.
Radio
Connect your radio data audio input, data audio output and PTT line to the PK-232SC Radio 1 or Radio 2
ports. This connection is the same for all models of the PK-232. If you are upgrading your PK-232MBX
to a PK-232SC, you can use your existing cable if you do not change radios. This connection is the same
for all models of the PK-232.
PK-232SC Ports
The PK-232Sc has two COM ports, a USB Audio sound card port and 2 USB ports.
The PK-232 terminal program uses the “standard” COM port to control the PK-232SC operation.
The PK-232SC rig control program uses the “enhanced” COM port to control your transceiver.
The PK-232SC sound card mode programs use the “USB Audio Codec” to run sound card
programs.
The PK-232SC USB ports appear on your computer USB port list and can be used for USB 2.0
compatible USB devices.

13
Some programs will automatically identify the correct ports for their functions. Others may have limited
ability to aid you in connecting the correct port to your software application. If you wish to identify or edit
the various PK-232SC ports, use the Device Manager application found in Windows XP/VISTA/Win7. Go
to Control Panel/System or Computer/properties to find Device Manager. You should learn to use Device
Manager to help you understand and manage the hardware configuration of your PC for all your devices
and programs.
PK-232SC Control
The PK-232 terminal program uses the “standard” COM port to control the PK-232SC operation. You
can use a variety of programs to control the PK-232SC A “dumb” terminal program such as
Hyperterminal (Windows XP) or puTTY allows you to control the PK-232SC in command mode. There
is little or no automation so all commands must be entered manually. Some programs have macros that let
you create commands by stringing together a series of commands that can be sent with one or two
keystrokes.
Other programs offer complete control of the PK-232SC with standard Windows graphical commands,
mouse actions and keystrokes. If you need a program with complete PK-232SC support, Timewave
recommends Radio Operating Center (ROC) from W4PC Software, Inc. (www.w4pcsoftware.com).
We suggest you contact the author of your favorite program to determine its level of PK-232SC support.
Timewave has a free applet called “ModemSwitch” (www.timewave.com.download.html that will switch
the PK-232 from transmit to receive and from sound card to PK-232 mode. It also has a simple dumb
terminal program for testing the PK-232.
Rig Control
Connect your radio rig control port to the matching PK-232SC CAT/CIV, 8 pin miniDIN, or RS-232
connector. Only one of the three connectors may be connected at one time. You may also connect one of
the two USB connectors to your radio if it supports USB rig control. Rig control is a connection for the
PK-232SC only. Earlier models of the PK-232 do not have this connection.
Timewave has several standard rig control cables for popular models of radios. We can supply a cable for
any compatible radio. Please contact us for details.
Your rig control software and your radio determine your rig control operating features. The PK-232SC rig
control circuitry is an interface only and does not affect the actual rig control operation.
Timewave recommends Radio Operating Center (ROC) from W4PC Software, Inc.
(www.w4pcsoftware.com) and Ham Radio Deluxe (www.ham-radio-deluxe.com) for rig control.
The PK-232SC operating COM port and the PK-232SC rig control COM port are independent.
You can use different PK-232SC operating and rig control programs simultaneously. For example, you
may use Ham Radio Deluxe for rig control and ROC for operating a PK-232SC mode such as Pactor.
USB Audio Sound Card
The USB audio sound card built into the PK-232SC appears as a separate audio device on your PC. It is
called “USB Audio Codec”. No software driver is necessary when you use the USB Audio Codec. You
must select the USB Audio Codec when you configure your terminal program to operate sound card modes
such as PSK-31. Use the program settings window in Radio Operating Center or the soundcard settings in
Digital Master 780 found in Ham Radio Deluxe.

14
SC Board Jumper Settings
The SC board has several jumper options that may be changed by the user. In most instances the jumpers
can be left at the factory default settings. The jumpers are located on the SC daughter board at the rear of
the PK-SC.
Rig Control
Not all transceivers have the same polarity settings for their logic level rig control ports. The PK-232SC
polarity settings for RX, TX, RTS and CTS can be changed to meet the requirements of any specific
transceiver. The factory default settings for JP1 (RX), JP2 (TX), JP3(RTS) and JP4(CTS) are pins 1& 2
connected. Connecting pins 2 & 3 will invert the polarity for one line only. Change these settings only if
you cannot your rig control program to recognize your transceiver. Most transceivers will not require any
change!
USB Jack Power
The two type B USB jacks on the PK-232SC default power output is 5 Volts @ 100 mA. This power is
derived from the computer or powered USB hub upstream from the PK-232SC. If the jumper on JP5 is
connected between pins 2 &3 (factory default), the external power supply will not be connected. The USB
circuitry will draw its power from the upstream USB device.
If you want to draw more than 100 mA. (500mA. max) from the PK-232 USB hub ports, you may connect
a 5.0 VDC @ 2A power supply to the PK-232. To do so you must enable the 5.0VDC power jack in the
middle of the PK-232SC back panel. Change the jumper on JP5 to pins 1 & 2. With the jumper in this
position, you must use the 5.0 VDC power supply so the USB circuitry will work!
USB Audio Sound Card Channel Combinations
The USB Audio sound card has two channels.
Receive Audio Input
In the factory default mode, the PK-232 sound card input (receive audio) is fed to both channels
simultaneously. Connecting JP23 pins 1 & 2 enables the factory default combined channel mode.
In optional mode, the PK-232 sound card input (receive audio) is fed to the left sound card channel and the
Aux Audio input (J10-ring on the SC connector board) is fed to the right sound card channel. Connecting
JP23 pins 2 & 3 enables the optional split channel mode.
Transmit Audio
In the factory default mode, both USB Audio sound card output channels feed the PK-232 sound card
output (transmit audio) simultaneously. Connecting JP3 pins 1 & 2 enables the factory default combined
channel mode.
In optional mode, the left sound card channel feeds PK-232 sound card output (transmit audio) and the
right sound card channel feeds the Aux Audio output (J10-tip) on the SC connector board.) Connecting
JP2 pins 2 & 3 enables the optional split channel mode.

15
Data Sheet
PK-232SC
Multimode Data Controller
Now with USB Audio, Rig Control and Single USB Computer
Cable!
Features
Digital Signal Processor
18 DSP Filters
Twin Peak RTTY Filters
Adaptive PACTOR filters
Works with all sound card modes
USB Sound Card Audio
RS-232, logic level & USB Rig Control for Icom, Yaesu & Kenwood radios
Single USB Computer Connection
Galvanic Computer Isolation
SC Upgrades for all PK-232 models
Timewave’s customers swear by their DSP filters and PK-232 owners love the flexibility and
reliability of the most popular data controller ever built. Now with the addition of a built-in sound
card, rig control, computer isolation and total USB connectivity, the PK-232SC rolls it all into
one! The PK-232SC brings a new level of performance to the legendary PK-232 with sharp,
accurate DSP filters for all its internal data modes and dual transformer isolation for sound card
data modes. Weak signals magically appear from the noise and QRM bounces off the new DSP
filters for cleaner copy with fewer errors than the old analog filters.
More Filters, Better Filters, Automatic selection
The PK-232SC brickwall filters have tighter bandwidth and steeper skirts for improved noise and
QRM rejection. New PK-232 firmware (Ver. 7.2) allows a wider selection of filters than the original
PK-232, so the filter can match the mode. The correct DSP filter is automatically selected when you
choose an internal mode. In RTTY, Timewave’s proven Twin Peak Filters pluck the mark and space
tones from the noise and QRM for great copy. In PACTOR, the filter bandwidth automatically
changes when the baud rate shifts in response to the error rate of the link. In Morse (CW), the
operator can preset either 100 Hz or 200 Hz bandwidth. The PK-232SC is compatible with all
Windows XP, Vista, and Windows 7 software terminal programs for the PK-232.
Sound Card Interface and Rig Control
For maximum flexibility, Sound Card / TNC switching is both software and panel switch controlled.
The sound card mode selection is software controlled. For example, when operating with Radio
Operating Center software, changing to PSK31 from Pactor or MT63 is a simple menu click.
The single USB cable from your PC also moves your logic level Kenwood RX/TX/RTS/CTS, Yaesu
CAT, and Icom CIV, RS-232 and USB Rig Control interface to the back panel of your PK-232SC.

16
All the Proven Modes + All the Sound Card Modes
The PK-232SC supports all the new sound card modes in addition to all of the existing PK-232
modes - Pactor, VHF/HF Packet, AMTOR/SITOR, Baudot, ASCII, Morse, HF Weather FAX, TDM,
and NAVTEX.
The PK-232SC comes with a complete cable and connector set in addition to Timewave’s on-line and
telephone support. As always, you can upgrade any PK-232 ever built to the latest PK-232SC!
Specifications for the PK-232SC
DSP Filters, demodulator 16 bit Analog Devices 2104 with 16 bit A/D-D/A for Optimum filters for each mode, limiter, 4-pole discriminator, 5-pole post-
detection low-pass filter
Modulator Phase continuous sinewave, AFSK generator
Modulator output level 5-200 mV RMS
Processor system Zilog Z-80, ADSP2105
Memory 32K Lithium battery-backed RAM, 128k ROM
Audio Internal USB Audio sound card
Hardware HDLC Zilog 85C30 SCC
Power requirements +13 to +16 VDC @ 590 mA.
Input/Output Connections
Radio interface Two 5-pin connectors, front panel selectable
Direct FSK outputs Normal/Reverse
Scope outputs Mark, space
CW keying outputs +100 VDC @ 200 mA max and –25 VDC @ 30 mA max
Terminal interface USB (galvanic isolation from PK-232 circuitry)
Terminal data rates Autobaud settings at 2400, 4800, & 9600 bps
Rig Control interface Yaesu CAT, Icom CIV, Kenwood TX/RX/RTS/CTS logic level, RS-232, USB
USB Downstream Ports Two USB 2.0, 100mA each (500 mA option available)
USB Computer Port USB mini-B jack
Physical
Dimensions 11" (279mm)W x 8.25" (210mm)D x 2.5" (64mm)H
Weight 3 lbs (1.35 kg)

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
VBUS_DET
OCS_n[2:1]
OCS_n1
OCS_n2
OCS_n2
LOCAL_PWR
RESETn
OCS_n1
VDDA18PLL
VDDA33
PRTPWR3
PRTPWR4
OCS_n4
OCS_n3
PRTPWR1
PRTPWR1
PRTPWR2
PRTPWR[2:1]
PRTPWR4
PRTPWR3
PRTPWR2
OCS_n3
OCS_n4
+3.3Vu
+3.3Vu
+3.3Vu
+3.3Vu
+3.3Vu
GND
VBUS2-SW
GND
CP2105-D-
VBUS1-SW
CP2105-D+
GND-USB
PCM2901-D+
PCM2901-D-
USB2514-CLKIN-24MHz
Title
Size Document Number Rev
Date: Sheet of
<Doc> 12-4.1
PK-232SC USB Hub
C
15Wednesday, September 14, 2011
Active Hub
Indicator
Optional
for production
Optional
for production
To program U10 flash memory -
Place shunts on pins 2 & 3 of JP7, JP10 and JP17.
For operation from flash memory -
Place shunts on pins 1 & 2 of JP7, JP10, and JP17.
For USB 2512 default, remove all shunts
SCL
SDA
SDA
SCL
GND_UP
VBUS_UP
USBUP_DP_H
USBUP_DM_H
Rig Control
PK-232
Audio
SDA
SCL
GND
Program
Flash Mem
Flash Mem
Program
Programmer
Connector
Upstream
USB Upstream
To SC Conn board
USBDN_DP3
USBDN_DP4
USBDN_DM3
USBDN_DM4
PWR3
PWR4
PWR3
PWR4
USBDN_DP4
USBDN_DM4
USBDN_DP3
USBDN_DM3
USB 2 bottom Back Panel
USBDN_DP4
USBDN_DM4
USBDN_DP3
USBDN_DM3
USB 1 top - Back Panel
PWR3
PWR4
VBUS_UP
PWR1
USBDN_DP1_H
USBDN_DM1_H
USBDN_DP2_H
USBDN_DM2_H
PWR2
USBDN_DP1
USBDN_DM1
USBDN_DP2
USBDN_DM2
PWR1
PWR2
USBUP_DP
USBUP_DM
SDA
Do Not Stuff!
Upstream
Downstream 1
Downstream 2
Downstream 3
Downstream 4
EEPROM/Config
Common
U3
USB2514QFN36
USBUP_DP 31
USBUP_DM 30
USBDN1_DP 2
USBDN2_DP 4
USBDN3_DP 7
USBDN4_DP 9
USBDN1_DM 1
USBDN2_DM 3
USBDN3_DM 6
USBDN4_DM 8
VBUS_DET
27
PRTPWR1 12
PRTPWR2 16
PRTPWR3 18
PRTPWR4 20
OCS1
13
OCS2
17
OCS3
19
OCS4
21
RBIAS 35
SDA/SMBDATA/NON_REM1 22
SCL/SMBCLK/CFG_SEL0 24
HS_IND/CFG_SEL1 25
XTAL1/CLKIN
33
XTAL2
32
RESET
26
LOCAL_PWR/NON_REM0/SUSP_IND_N
28
TEST
11
VDD33(IO) 23
VDDPLL18 34
VDDA33 29
VDDPLLREF/VDDA33 36
VDD33(REG) 15
VDDCR18 14
VSS(FLAG)
37
VDDA33 5
VDDA33 10
U1 LP38501-ADJ
IN
2
GND
3
EN
1ADJ 5
OUT 4
C10 0.1uF
J6
HEADER_4
1
2
3
4
C29
0.1uF
C23
0.1uF
LED3
RED
JP3
Header 3
1
2
3
R9 0
C24
0.1uF
+
C6
100uF
JP4
Header 3
1
2
3
R6
100K
C25
0.1uF
J5 +5Vu
1
C3
1nF
BR2
BGX50A
3 1
2 4
R13 0
R15
100K
+
C1
10uF
R10 0
L2
DLP11SN900SL2
12
3 4
LED2 GRN
C13 0.1uF
BR1
BGX50A
3 1
2 4
JP1
JUMPER 2_7
1
2
C4
33pF
JP5
Header 3
1
2
3
C18
0.1uF
U2
MIC2026-1BM
IN
7
ENA
1OUTA 8
OUTB 5
FLAGA 2
ENB
4
GND
6
FLAGB 3
+
C2
100uF
FB2
2A/0.05DCR
R14
100K
R20
100K
C28
1.0uF/10V
C16
0.1uF
R7
100K
R11 0
JP2
JUMPER 3
1
2
3
U4
MIC2026-1BM
IN
7
ENA
1OUTA 8
OUTB 5
FLAGA 2
ENB
4
GND
6
FLAGB 3
C15
0.1uF
USB DUAL-A-REC-RA-THRU
J3
VCC
1T
D-
2T
D+
3T
GND
4T
SHLD
9
SHLD
10
VCC
1B
D+
3B
D-
2B
GND
4B
SHLD
11
SHLD
12
+
C8
100uF
J1
1
2
3
LED1 GRN
R18
12.0K
1%
C27
0.1uF
C19 4.7uF/6.3V
R5
10k
C9
0.1uF
U5 AT24C02C-TH
A0
1A1
2A2
3
WP
7
SCL
6
SDA 5
VCC 8
GND 4
C7
0.1uF
J2
HEADER_4
1
2
3
4
C22
0.1uF
R16
100K
+
C11
100uF
FB1
2A/0.05DCR
R12 0
R2
44.2k
R1 330
R8 0
J4
HEADER_4
1
2
3
4
R19 1K
R3
10k
L1
DLP11SN900SL2
12
3 4
C30
1.0uF/10V
+
C14
100uF
C12
0.1uF
C17
0.1uF
R17
100K
C5
1nF
C20
0.1uF
R4 330

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
+5Vi
+3.3VA
+5A Vref
+3.3V
+3.3Vu +3.3Vu
GND-USB
VBUS2-SW
USB2514-CLKIN-24MHz
PCM2901-CLKIN-12MHz
Title
Size Document Number Rev
Date: Sheet of
<Doc> 12-4.1
Power Supply & Reset
C
25Wednesday, September 14, 2011
4/19/2011
Reset Switch Assembly Jack
To PK-232sc +13.5 VDC
To USB audio codec
To isolated +5Vi digital circuits including 74xx ICs
From VBUS Audio
To isolated +5VA Analog circuits +2.5VDC audio reference
USB audio circuits
12.0 MHz
24.0MHz To USB2514 clk in
To PCM2901clk in
C26
.01uF
C46
0.1uF
R23
10k
C42
0.1uF
R92 0
C50
1.0uF/10V
U29 74AUP1G74
D
2
CLK
1
Q5
Q
3
VCC 8
PRE 7
GND
4
CLR 6
R158 0
+
C36
10uF C37
0.1uF
R159 0
C49
.01uF
C32
1.0uF/10V
+
C35
100uF
C33
.01uF
U6 LP38692MP-3.3
Ven
1NC 2
Vout 3 Vin
4
GND
5
R22
0
C31
1.0uF/10V
JP7
Header 2
1
2
JP6
Header 2
1
2
U7
LM7805CT
IN
1OUT 3
GND
2
U27
FXO-HC735-24MHZ
VCC
4
EN
1
OUT 3
GND 2
+
C111
100uF
C41
0.1uF
C48
.01uF
R21 10k
+
C110
100uF
D1
S1GB
1 2
R150 0
C21
.01uF R134 10k
C34
1nF
U10 LP38692MP-2.5
Ven
1NC 2
Vout 3 Vin
4
GND
5
+
C44
100uF
C45
0.1uF
L3
BEAD FERRITE/SM
U9
LM7805CT
IN
1OUT 3
GND
2

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
+5Vi
+5Vi
+3.3Vu
+3.3Vu
+3.3Vu
+3.3Vu
+3.3Vu
+5Vi
+5Vi +3.3Vu
+3.3Vu
+3.3Vu
+3.3Vu
GND-USB
VBUS1-SW
CP2105-D+
CP2105-D-
GND
DTR-PK232
TX
RX
RTS
CTS
DTR
Title
Size Document Number Rev
Date: Sheet of
<Doc> 12-4.1
PK-232 USB- UART & Rig Control
C
35Monday, October 31, 2011
RTS
TXD/
CTS
DCDB/ U19-8
RXDB U19-3
CTSB/ U19-11
RXD/
RXD/
CTS
TXD/
RTS
DTRB/ U20-9,10
TXDB U20-4,5
RTSB U20-12,13
To PK-232 U7 8530
Remove U19, U20
solder wires to U19, U20 pins
DCDB/ U19-8
RXDB U19-3
CTSB/ U19-11
DTRB/ U20-9,10
TXDB U20-4,5
RTSB U20-12,13
U19-5
U19-6
U19-7 Connect 2N3904 for PK-232 only!
Do not use for PK-232MBX and
all Timewave models
RI
DTR
DCD DCD
TXD
/RTS
/CTS
Rig Control
RTS
CTS
GND
TXD/
TX
RX
TX
RX
DTR
Rig Control - DTR - Aux Out
To SC Conn board
RXD-KW
RX
TX
CTS
RTS
RX
CTS
Rig Control -
Kenwood sensing pins
To SC Conn board
DTR
CTS
Do Not Stuff!
RX
CTS
TX
RTS
R74
10k
R27 470
R39
Open
R76 10
R64 150
R75 150
R33
470
R61 Open
C105
0.1uF
U11
PS2801C-4
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
R135
100k
JP11TX
1
2
3
R70
150
JP9 HEADER 3
1
2
3
R44
Open
C64
1nF
U17B
74LVC86/SO
64
5
147
R73
100k
R31 470
C106
0.1uF
U26 open
1
2
4
3
+
C53
4.7uF/6.3V
R24 470
R136
10k
U18 PS2801C-1-F3-A
1
2
4
3
J7
1
2
JP12 RTS
1
2
3
C38
0.1uF
C107
0.1uF
U14D
74LVC86/SO
11
12
13
147
R62 10k
R38
Open
U17D
74LVC86/SO
11
12
13
147
R34
470
R137 open
R36
10k
JP13 RX
1
2
3
R55 150
R67
Open
R29
470
R69
150
R138
open
R43
Open
R35
47k
R37
Open
R32
4.7k
C52
0.1uF
R48
Open
JP14 CTS
1
2
3
U14A
74LVC86/SO
31
2
147
R56
470
R28
470
U12 74HC7541
OE1
1
GND
10
OE2
19
VCC 20
A0
2A1
3A2
4A3
5A4
6A5
7A6
8A7
9
Y0 18
Y1 17
Y2 16
Y3 15
Y4 14
Y5 13
Y6 12
Y7 11
R68 10k
C54
1.0uF/10V
U13
CP2105
Vio
5
REGIN
7
VDD
6
GND
2
VBUS
8
D+
3
D-
4
/RST 9
/Suspend-RIe 17
Vpp-DCDe 16
GPIO.1-DTRe 15
RTSe 11
TXDe 13
CTSe 10
RXDe 12
RXDs 20
TXDs 21
RTSs 19
CTSs 18
GPIO.1-DSRe 14
GPIO.1-DTRs 23
GPIO.0-DCDs 24
/Suspend-RIs 1
GPIO.2-DSRs 22
U14B 74LVC86/SO
64
5
14 7
R46
10k
R47
10k
R42
Open
R57
470
R30 560
U17A
74LVC86/SO
31
2
147
JP8 HEADER 3
1
2
3
R52 Open
+
C51
4.7uF/6.3V
R26 470
JP10 HEADER 3
1
2
3
U17C
74LVC86/SO
8
9
10
147
C103
0.1uF
C109
open
Q1
MMBT2222A
R41
Open
R45
47k
R40
Open
R25
47k
R51
10k
U14C
74LVC86/SO
8
9
10
147
C63
1nF
R60
47k
R49 150
U15
PS2801C-4
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
C47
0.1uF
R63 150

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
+5Vi
+5Vi
+5Vi
DTR
TX
RX
RTS
CTS
Title
Size Document Number Rev
Date: Sheet of
<Doc> 12-4.1
RS-232/Logic Rig Control
C
45Wednesday, September 14, 2011
TX
RTS
Rig Control - DTR - Aux Out DTR
TX
RX
RTS
CTS
RX
RX
TX
DTR
CTS
RTS
RX-232
TX-232
RTS-232
CTS-232
DTR-232
CTS CTS-232
RX-232
TX-232
RTS-232
TX
RTS
CTS
RX
Rig Control
RX
CTS
DTR
TX
RX
Do Not Stuff!
Rig Control
To SC Conn board
RTS
CTS
GND
R149
22
R71
10
R53
47
C115
1nF
R80
10k
C57
47pF
MAX3223CPW
U33
DIN1
13
RIN2 9
RIN1 16
C2-
6
C2+
5
DOUT2 8
DOUT1 17
V- 7
V+ 3
GND
18
FORCEON 14
INVALID_L 11
EN_L 1
C1-
4
C1+
2
FORCEOFF_L 20
ROUT2
10 ROUT1
15
VCC 19
DIN2
12
C124 0.1uF
R72
10
C55
47pF
R144
332
C116
1nF
P2
DB9M-RA
5
9
4
8
3
7
2
6
1
10
C125
0.1uF
C117
1nF
C62
1nF
C60
1nF
J8
HEADER_6
1
2
3
4
5
6
U32B
74AHCT125
56
14 4
7
R151
10k
R66
47
C61
47pF
R153
10k
R152
Open
C119
0.1uF
R58
47
R65
47
U32C
74AHCT125
98
14 10
7
R154
10k
R146
22
C120
0.1uF
C59
47pF
R59
47
R147
22
C121
0.1uF
C56
1nF
U32A
74AHCT125
23
14 1
7
C113
.01uF
U32D
74AHCT125
1211
14 13
7
R148
22
U34
74AHC1G04/SOT
24
53
C58
1nF
C122
0.1uF
R54
47
C126 0.1uF
C114
1nF