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Section 0

Service Manual: Parts List

See also Replacement Parts.

Computer Board, 30-7225301

Reference Chroma Part No. Mfg. No. Description
C2 30-1103005 ----- CAP ELECT 10UF 35V 50-10
C3 30-1103201 ----- CAP ELECT 1UF 35V 20%
CR1 30-1200101 1N34A DIODE GE
CR2 30-1200201 4001 RECT 50V 1A
Q2,3,4,5 30-1302901 3904 TSTR NPN GP
Q1 30-1305001 TIP30A TSTR NPN POWER
Z10 30-1401803 74S02 IC GATE 4X2I
Z11 30-1403403 74S08 IC GATE 4X2I, AND
Z8 30-1406602 74S04 IC HEX INVERT
Z9 30-1406701 74LS74 ICDUAL D FF PRST CLEAR
Z1 30-1412101 68B09 IC MICRO COMPUTER
Z21-28 30-1412601 2114L IC RAM 1K X 4 NMOS
Z2 30-1412701 74LS245 IC DRIVER BI-DIRECT OCT
Z5,6,7 30-1413101 74S138 IC 1 OF 8 DEC
Z3,4 30-1413501 74LS367 IC HEX BUFFER 3 ST
Z13-18 30-1414001 6514-9, 65114-30, 4334P-3 IC RAM 1K X 4 CMOS 300NS
Z12 30-1414104 ----- IC RES NETWORK 1K 16 PIN ¼W 2%
For Z29-36 30-2102705 ----- SOCKET DUAL IN LINE 24 PIN LP
For Z1 30-2102706 ----- SOCKET DUAL IN LINE 40 PIN LP
For Z13-18, Z21-28 30-2102707 ----- SOCKET DUAL IN LINE 18 PIN LP
For P9, 10 30-2107701 ----- CONN HOUSING FLAT FLEX 15 PIN
P9, 10 30-2204701 ----- CABLE FLAT FLEX 15 COND 15"
CY1 30-2600302 ----- CRYSTAL 16MHZ
Z29 30-5603201 ----- IC EPROM PROGRAMMED
Z30 30-5603202 ----- IC EPROM PROGRAMMED
Z29 30-5603203 ----- IC EPROM PROGRAMMED
Z29 30-5603204 ----- IC EPROM PROGRAMMED
Z29 30-5603205 ----- IC EPROM PROGRAMMED
Z29 30-5603206 ----- IC EPROM PROGRAMMED
Z29 30-5603207 ----- IC EPROM PROGRAMMED
Z29 30-5603208 ----- IC EPROM PROGRAMMED

I/O Board, 30-7225801

Reference Chroma Part No. Mfg. No. Description
R1 30-1000909 ----- POT ROTARY TRIMMER 10K ¼W 30%
R2 30-1003001 ----- POT SLIDE LINEAR 10K ¼W 20%
C32 30-1103002 ----- CAP ELECT 100UF 10V +50-10%
C1,2,3,4,6 30-1103005 ----- CAP ELECT 10UF 35V 50-10%
C5 30-1103201 ----- CAP ELECT 1UF 35V 20%
C20 30-1103202 ----- CAP ELECT 22UF 35V 20%
CR23,24,25.26,27,31 30-1200201 4001 REC 50V 1A
CR17-22,28,29,30 30-1200301 4148 DIODE SIGNAL
CR1,3,6,11,14 30-1201602 ----- DIODE LIGHT EMIT 10MA GREEN
CR2,4,7,9,12,15 30-1201603 ----- DIODE LIGHT EMIT 10MA RED
CR5,8,10,13,16 30-1201604 ----- DIODE LIGHT EMIT 10MA YELLOW
Q2 30-1300501 2222 TSTR NPN GP
Q10 30-1301301 4392 TSTR N CHANNEL
Q3,4,5,6,7,8,9 30-1302901 3904 TSTR NPN GP
Q1 30-1305501 TIP29A TSTR NPN PWR
Z2 30-1401101 1458 IC DUAL OP AMPL
Z48 30-1401702 74LS00 IC GATE 4X2I NAND
Z49,50 30-1402102 74LS10 IC GATE 3X3I NAND
Z55 30-1402201 7412 IC GATE 3X3I NAND OC
Z51 30-1402302 74LS20 IC GATE 2X4I NAND
Z21 30-1406401 4558 IC OP AMPL DUAL
Z10,38 30-1406701 74LS74 IC DUAL D FF PRST CLEAR
Z25,53 30-1407601 081 IC OP AMPL FET
Z13 30-1408001 74LS145 IC DCD-DEC DECODER DRIVER
Z12,22,35,42 30-1409101 74LS175 IC QUAD D FLIP FLOP
Z20 30-1409702 7523J IC 8 BIT CMOS DAC
Z11,44,45 30-1410501 74LS393 IC COUNTER DUAL 4 BIT
Z8 30-1411001 311 IC VOLTAGE COMP
Z18,19 30-1411601 4175 IC QUAD D FF
Z30 30-1411701 4174 IC HEX D FF
Z24 30-1412301 7541 IC 12 BIT CMOS DAC
Z3 30-1412501 0809 IC ADC 8 BIT 8 CHANNEL
Z5,6,23,26,36,46,47 30-1412801 74LS374 IC OCT D FF
Z15 30-1412802 74S374 IC OCTAL DUAL FLIP FLOP
Z32 30-1412901 74LS373 IC OCTAL DUAL FLIP FLOP TRAN
Z4,16,27,28,34,37 30-1413001 74LS244 IC OCT BUF 3 STATE
Z39,40,41 30-1413102 74LS138 IC 1 OF 8 DECODER
Z29 20-1413201 74LS174 IC HEX DUAL FLIP FLOP
Z43 30-1413401 74LS153 IC DUAL 4 CHANNEL
Z9 30-1413701 MCT66 IC DUAL OPTO COUPLE
Z14 30-1414101 ----- IC RES NETWORK 16 PIN 220 OHM ¼W 2%
Z52 30-1414102 ----- IC RES NETWORK 16 PIN 100 OHM ¼W 2%
Z17 30-1414103 ----- IC RES NETWORK 16 PIN 10K ¼W 2%
Z54 30-1414104 ----- IC RES NETWORK 16 PIN 1K ¼W 2%
Z1 30-1414701 324 IC OP AMPL
I1 30-1800901 ----- DISPLAY LED 7 SEG 2 DIGIT RED
I2 30-1801001 ----- DISPLAY LED 7 SEG 8 DIGIT RED
J22 30-2101301 ----- SOCKET DUAL IN LINE 14 PIN
J20,24 30-2101302 ----- SOCKET DUAL IN LINE 16 PIN
For Z10,38 30-2102702 ----- SOCKET DUAL IN LINE 14 PIN LP
For Z20 30-2102703 ----- SOCKET DUAL IN LINE 16 PIN LP
For Z33 30-2102705 ----- SOCKET DUAL IN LINE 24 PIN LP
For Z31 30-2102706 ----- SOCKET DUAL IN LINE 40 PIN LP
For Z24 30-2102707 ----- SOCKET DUAL IN LINE 18 PIN LP
For Z5,6,15 30-2102708 ----- SOCKET DUAL IN LINE 20 PIN LP
For Z3 30-2102709 ----- SOCKET DUAL IN LINE 28 PIN LP
J12 30-2102902 ----- CONN PLUG WAFER 3 PIN
J13 30-2104402 ----- CONN WAFER PC BD 6 PIN
J18 30-2104404 ----- CONN WAFER PC BD 10 PIN
J11 30-2104406 ----- CONN WAFER PC BD 4 PIN
J14,15,16 30-2106801 ----- CONN FLAT COND 10 PIN
J9,10 30-2107401 ----- CONN RECPT SIP 15 POS
J17 30-2107501 ----- CONN RECPT MALE 26 PIN RT ANGLE
  30-2107601 ----- LATCH EJECTOR
J1,2 30-2108001 ----- CONN WAFER PC BD 6 PIN
Z33 30-5603301 ----- IC EPROM PROGRAMMED KEYBOARD SCAN

Channel Mother Board, 30-7225401

Reference Chroma Part No. Mfg. No. Description
C13,14 30-1103002 ----- CAP ELECT 100UF 10V 20%
C4 30-1103004 ----- CAP ELECT 200UF 6.3V +50-10
C1 30-1103005 ----- CAP ELECT 10UF 35V 50-15%
C2,3 30-1103007 ----- CAP ELECT 1000UF 16V +50-10
CR2 30-1200101 1N34A DIODE GE
CR1 30-1200301 4148 DIODE SIGNAL
Q1,2 30-1302901 3904 TSTR NPN GP
Z4,6 30-1404402 4013B IC DUAL D FF SET/RESET
Z16,17 30-1404501 4016B IC QUAD BILAT SWITCH
Z7 30-1405101 4071B IC GATE 4X21 OR
Z18,19 30-1406401 IC OP AMPL DUAL
Z20 30-1411001 311 IC VOLTAGE COMPARATOR
Z1,2,5 30-1411601 4175 IC QUAD DUAL FLIP FLOP
Z3 30-1411701 4174 IC HEX DUAL FLIP FLOP
Z14,15 30-1414201 5837/2688 IC 1 OF 4 DECODER DUAL
Z8,9,10,11,12,13 30-1414301 4556 IC 1 OF 4 DECODER DUAL
J5-0,1,2,3,4,5,6,7 30-2104403 ----- CONN WAFER PC BD 8 PIN
J7-0,1,2,3,4,5,6,7      
J8-0,1,2,3,4,5,6,7      
J6-0,1,2,3,4,5,6,7 30-2108601 ----- CONN WAFER PC BD 8 PIN
P24 30-2200807 ----- CABLE RIBBON 26 AWG 16 PIN 24"

Dual Channel Board, 30-7225601

Reference Chroma Part No. Mfg. No. Description
R3,4,5,6 30-1000105 ----- RES WW TC 1.87K 1W 3%
R1,2 30-1001607 ----- POT ROTARY TRIMMER 10K 1/5W 30%
C1,2,3,4 30-1102301 ----- CAP PLASTIC FILM .001UF 100V 10%
C15 30-1103005 ----- CAP ELECT 10UF 35 V 50-10%
C13,14,16,17,18 30-1103201 ----- CAP ELECT 1UF35V 20%
C32,33,34,35,36,37,38,39 30-1103901 ----- CAP POLY FILM .0068UF 50V 10%
C24,25,26,27,28,29,30,31 30-1103902 ----- CAP POLY FILM .033UF 50V 10%
CR1,2 30-1200301 4148 DIODE GE
Q1,4,5,8,9 30-1302901 3904 TSTR NPN GP
Q2,3,6,7 30-1303001 3906 TSTR PNP GP
Z1 30-1400501 3086 IC TSTR ARRAY
Z7 30-1400601 4011U IC GATE 4X2I NAND
Z19,20 30-1404901 4051B IC SINGLE 8-CHAN MULTIPLEXER
Z12 30-1406201 4053B IC TRIPLE 2-CHAN MULTIPLEXER
Z4,10,29 30-1406401 4558 IC OP AMPL DUAL
Z5,14,21,22,23,24 30-1409001 082/353 IC OP AMPL DUAL FET
Z8,9,11,15,17,18 30-1409501 4052B IC DUAL 4-CHAN MULTIPLEXER
Z26,27,28 30-1411701 4174 IC HEX DUAL FLIP FLOP
Z6 30-1413601 393 IC DUAL COMPARATOR OC
Z2,3 30-1413901 4151 IC VCF CHARGE PUMP
Z25 30-1414301 4556 IC 1 OF 4 DECODER DUAL
Z16 30-1414401 3360 IC DUAL VCA
Z13 30-1414501 3350 IC DUAL VCF

Left Stack Switch Assembly, 30-7543601

Reference Chroma Part No. Mfg. No. Description
Z1 30-1408001 74LS145 IC BCD-DEC DECODER DRIVER
Z2,3,4,5 30-1414103 ----- IC RES NETWORK 16 PIN 10K ¼W 2%
For P21 30-2107701 ----- CONN HOUSING FLAT FLEX 15 PIN
P21 30-2204701 ----- CABLE FLAT FLEX 15 COND 2.5"
  30-5710701 ----- SWITCH LEAF LOW BOUNCE

Right Stack Switch Assembly, 30-7543701

Reference Chroma Part No. Mfg. No. Description
Z7,8 30-1405401 339 IC QUAD COMP
Z1 30-1408001 74LS145 IC BDC-DEC DECODER DRIVER
Z6 30-1414102 ----- IC RES NETWORK 16 PIN 100 OHM ¼W 2%
Z2,3,4,5,9 30-1414103 ----- IC RES NETWORK 16 PIN 10K ¼W 2%
J21 30-2107401 ----- CONN RECPT SIP 15 POS
P20 30-2200805 ----- CABLE RIBBON 26 AWG 16 PIN 9"
  30-5710701 ----- SWITCH LEAF LOW BOUNCE

EQ Board, 30-7225501

Reference Chroma Part No. Mfg. No. Description
R1,5 30-1002901 ----- POT SLIDE LINEAR 10K 1/5W 20%
R2,3,4 30-1002902 ----- POT SLIDE LINEAR 100K 1/5W 20%
C20,21 30-1102901 ----- CAP ELECT NP 10UF 16V +50-10%
C18 30-1103001 ----- CAP ELECT 4.7UF 35V +100-10%
C1,2 30-1003005 ----- CAP ELECT 10UF 35V +50-10%
CR1,2,3,4,5 30-1200301 4148 DIODE SIGNAL
Q4,6 30-1300401 2907 TSTR PNP GP
Q3,5 30-1300501 2222 TSTR NPN GP
Q2 30-1302901 3904 TSTR NPN GP
Q1 30-1304901 5485 TSTR N CHAN FET
Z3,4,5,6 30-1406401 4558 IC OP AMP DUAL
Z1,2 30-1414401 3360 IC VCA DUAL
J25 30-2104402 ----- CONN WAFER PC BD 6 PIN
J19 30-2104408 ----- CONN WAFER PC BD 14 PIN
J4 30-2108002 ----- CONN WAFER PC BD 3 PIN

Power Supply Assembly, 30-7543901

Reference Chroma Part No. Mfg. No. Description
R12 30-1000112 ----- RES WW .120 OHMS 1W 5%
R18,25,30 30-1000113 ----- RES WW 1K 1W 10%
R22 30-1000909 ----- POT ROTARY TRIMMER 10K ¼W 30%
R46 30-1001601 ----- POT ROTARY TRIMMER 100K 1/5W 30%
R1,2 30-1002801 ----- VARISTOR METAL OXIDE 150VAC
C7,11 30-1101301 ----- CAP ELECT 1000UF 50V 75-10%
C6,9,15,16 30-1103005 ----- CAP ELECT 10UF 35V 50-10%
C10,12 30-1103401 ----- CAP ELECT 3.3UF 35V +100-10%
CR13 30-1200101 34A DIODE GE
CR11,12,15,16 30-1200301 4148 DIODE SIGNAL
CR4 30-1200505 5257 DIODE ZENER 33V 5%
CR14 30-1200506 5228B DIODE ZENER 3.9V 5%
CR1,2 30-1201701 MR750 DIODE RECT 50V 6A
CR3,5 30-1201901 4742 DIODE ZENER 12V 5%
CR6,7,8,9,10 30-1202101 4002 DIODE 100V 1A
Q3,5,8,10,13 30-1302901 3904 TSTR NPN GP
Q11,12 30-1303001 3906 TSTR PNP GP
Z3 30-1414801 589KH IC VOLTAGE REFENRECE
Z1,2 30-1415101 358 IC DUAL OP AMPL
  30-1700801 ----- FUSE CLIP
J1,2,3 30-2108001 ----- CONN RECPT PC BD 6 PIN
J4 30-2108002 ----- CONN RECPT PC BD 3 PIN
C3 30-1104001 ----- CAP ELECT 47000UF 7.5V 75-10%
Q7,9 30-1305301 TIP110 TSTR NPN DARL
Q6 30-1305501 TIP29A TSTR NPN PWR
Q2,4 30-1306401 IRF531 TSTR MOS FET POWER
Q1 30-1306501 6258 TSTR NPN PWR
  30-1901501 ----- SWITCH SLIDE DPDT
S1 30-1905101 ----- SWITCH SLIDE DPDT 115V/230V UL
  30-2103101 ----- CONN RECPT 3 PIN
  30-2108201 ----- CONN RECPT 5 PIN
T1 30-5710601 ----- TRANSFORMER POWER
  30-7226001 ----- PC BD ASSY OVERVOLTAGE PROTECTOR