Chapter 3 — Theory of Operation
74 CV30 Fixed Mount Computer Service Manual
CV30 Connectors
The CV30 contains numerous internal connectors and external peripheral
connectors. These connections allow for maximum flexibility in the
configuration of the system.
Internal Connectors
The internal connectors provide board-to-board interfaces and interfaces to
other devices. The internal connectors consist of:
1 Power connector: Molex (22-28-1050)
2 Battery connector: Molex (87438-034)
3 LCD connector: Hirose (DF9B-31P-1V(32))
4 CF connector: Molex (55358-5029)
5 SD card connector: Molex (500998-0900)
6 MLB to I/O board connector: JST (BM50B-SRDS-G-TFC(LF)(SN))
7 MLB to touch heater board connector: JST (BM50B-SRDS-G-
TFC(LF)(SN))
8 MLB to radome board connector: JST (SM06B-SRSS-TB(LF)(SN))
9 MLB to inverter board connector: ACES (87216-1016)
10 RF connector: IPEX (20279-001E-01)
11 Touch heater connector: Molex (52610-1271)
12 Touch panel connector: Molex (52610-0871)
13 Touch heater board to keypad board: Molex (52559-2270)
14 Keypad board to audio jack board and speaker: JST (SM07B-SRSS-
TB(LF)(SN))
15 Keypad board to LED board: JST (SM04B-SRSS-TB(LF)(SN))
16 Inverter board to LCD CCFL: JST (SM04(4.0)B-BHS-1-TB(LF)(SN))
External Connectors
The external connectors consist of:
• 5-pin power connector (Singatron 91M-701-5P)
• 3-pin audio headset jack, 2.5 mm (Singatron AJ413A-3-SMT)
Pin Number Signal
1 FRAME_GND
2 V120_SYS
3SYS_NEUTRAL
4 HEATER_NEUTRAL
5HEATER_MAIN
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