CMD RAMLINK PC BOARDS 3-14-2013.


           CMD RAMLINK PC BOARDS
             latest updates and corrections 3-14-2013


                       CMD RAMLINK PC BOARDS
             latest updates and corrections 3-14-2013


        EARLY MODEL (1990), MAIN BOARD IC'S
 
ID        PART #         GENERIC IC            FUNCTION

U1      RL-701002B	GAL20V8A-25LP	 
U2      RL-701037D	GAL20V8A-25LP
U3      RL-701018A      GAL16V8A-25LP
U4      RL-701017A      GAL16V8A-25LP
U5      RL-701003       27512           DOS EPROM, versions 1.40, 2.00, 2.01, ETC.
U6                      74LS139N
U7                      74AHCT74
U8                      74AHCT74N
U9                      7407
U10                       N/A           BLANK SPACE
U11                     D8255AC-5
U12                     74LS174N
U13                     6264LP-15       SRAM 
U14                     74F157N
U15                     74HCT193E
U16                     74HC04AP
U17                     74LS14	
U18                     AN7807          3 TERMINAL REGULATOR
U19                     74LS157NA
U20                       N/A           BLANK SPACE

Q1                      2N3906          TRANSISTOR, PNP, SIGNAL
Q2                      TIP42C          TRANSISTOR, PNP, PWR, TO220
Q3                      TIP41C          TRANSISTOR, NPN, PWR, TO220


        LATE MODEL (1992), MAIN BOARD IC'S
 
ID        PART #         GENERIC IC          FUNCTION

U1      RL-701002D	GAL20V8A-25LP	 
U2      RL-701037D	GAL20V8A-25LP
U3      RL-701018A      GAL16V8A-25LP (ALT: RLDIRECT-A)
U4      RL-701017C      GAL16V8A-25LP
U5      RL-701003       27512           DOS EPROM, version 2.01
U6                      74LS139N
U7                      74HC109N
U8                      74HC32BI
U9                      7407
U11                     D8255AC-2
U12                     74LS174N
U13                     HY6264P-12      SRAM 
U14                     LM393N
U15                     74HC14N
U16     RL-701519A      GAL16V8A-25LP
U17                     74LS14
U18                     LM340TS (7805)  3 TERMINAL REGULATOR
U19                     74LS157NA
U21                     LM317

Q1                      2N3906          TRANSISTOR, PNP, SIGNAL
Q2                      TIP32C          TRANSISTOR, PNP, PWR, TO220
Q3                      TIP31C          TRANSISTOR, NPN, PWR, TO220
Q4                      2N3904          TRANSISTOR, NPN, SIGNAL
Q5                      TIP32           TRANSISTOR, PNP, PWR, TO220



        EARLY SIMM BOARD (1990) IC'S (no RTC)

ID       PART #          GENERIC IC

U1                      74HCT193E
U2      RL-701102A      GAL20V8A-25LP
U3                      74157
U4                      74157
U5                      74157
U6                      TMP8255AP-5
AND SIMM SOCKETS, FOUR BANKS


        LATE SIMM BOARD (1992) IC'S (w/ RTC)

ID       PART #          GENERIC IC

U1      RL701606A RTC   GAL16V8-25LNC
U2      RL701102B       GAL20V8A-25LP
U3                      74157F
U4                      74157F
U5                      74157F
U6                      72421B 1492C RTC 
U7                      74HCT374N
U8                      74HCT374N
AND SIMM SOCKETS, FOUR BANKS

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REPAIR PARTS FROM JEFF JARIAN AT MYTEC ELECTRONICS

I offer replacement PLDs for CMD RLinks and CMD HDs as listed below:
 
RLink U1, U3 set $49.90 (U1 GAL22V10B-25LP & U3 GAL16V8D-15LP)
RLink U2 $39.95
RLink U4 $29.95
RLink U2R (upper-ram-board) $39.95
RLink RTC PLD (upper-ram-board v2) $29.95
RLink -or- HD RTC (OEM) Chip $12.95
HD U13, U24, U27 set $119.95 



 

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