GE HEALTHCARE
DIRECTION 5394141, REVISION 5 LOGIQ™ P5 SEVICE MANUAL
5-10 Section 5-4 - Main Board Detail
Section 5-4 Main Board Detail (cont’d)
The digital representation of this signal is presented to the Mid Processor section.
• P3RLY (Relay) : This P3RLY is for LOGIQ™ P5 or LOGIQ™ A5 with 3port upgrade kit. P3RLY Assy
contains 3 connectors for probe interface and arrays of relays for switchable connection. High
voltage multiplexer provide connection between 128 signal of probe and selectable 64 channels
transmit/receive signals.
• P2RLY(Relay) : This P2RLY is for LOGIQ™ A5. P2RLY Assy contains 2 connectors for probe
interface and arrays of relays for switchable connection. High voltage multiplexer provide
connection between 128 signal of probe and selectable 64 channels transmit/receive signals
• CL1TRX (Color single acquisition Tx and Rx) : This board is for LOGIQ™ P5 and LOGIQ™ A5 with
Color upgrade. This consists of two main board, L1BFC(Single acquisition Beam Forming Control)
and CTX(Color TX) ASSY. L1BFC has transmit/receiving switch to isolate rx signal circuit from
transmit pulse. The preamplifier on L1BFC amplifies 64 small echo signals. The amplified receiving
signals are converted to digital and sent to the delayed summing block. CTX board has 64 channel
Transmit pulse generator, bipolar pulse drivers and delay controller.
• SYSCONPM (System Control board with Pentium M module): SYSCONPM is for LOGIQ™ P5 or
LOGIQ™ A5 with color upgrade kit. SYSCONPM controls scan operation and transfer the scan
parameters to other boards like P3RLY, CL1TRX, ACWD(option). Proper signal processing for
tissue and Doppler are done in SYSCONPM.
• SYSCONCM (System Control board with Celeron M module): SYSCONCM is for LOGIQ™ A5.
SYSCONPM controls scan operation and transfer the scan parameters to other boards like P2RLY,
BL1TRX. Proper signal processing for tissue and Doppler are done in SYSCONCM.
• APS/APS Pro(Advanced Power Supply) : Includes Low voltage power and High voltage power in
one module. It generates 3.3V, 5V, and 12V for digital parts and 6V, -6V, 12A, -12V for analog parts.
Additionally, It generate THV(Transmit High Voltage) and SHV(Static High Voltage) for transmit
pulse driver and High voltage MUX.
• ASIG(Signal) : Transfers the TX pulse signals from CL1TRX(BL1TRX) to the probe port on
P3RLY(P2RLY). Receives echo signals from P3RLY(P2RLY) are transfer to CL1TRX(BL1TRX)
through this ASIG. For ACWD, the pre-amplified received signals go to the ACWD though ASIG.
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