Parts Lists and Schematics

When ordering parts, the part number must be specified.

Components which do not have part numbers should be specified by a reference number.

Concerning components on the printed circuit boards, those which have part numbers should be specified by their respective part number, and those which do not have part numbers should be specified either by their assembly name or reference numbers.

NOTE

The part numbers in parenthesis are included in the assembly numbers indicated in the "Notes" next to those "Part No.", therefore, tnose parts must be specified by the assembly numbers.

10-1 SAFETY COMPONENTS↑ TOP

For safe operation, components specified by the symbol ⚠, in the circuit diagram, must not be replaced with ones of a different type. These safety components are also listed on Table 10-1.

Table 10-1 Safety Component

Ref. No.	Description	Part No.	Assembly	Notes
2-10	Transformer, Power	TF11060	CHASSIS Ass'y
2-16	Fuse, 1A, φ5.2	FH7F010	"	Control P.C. Board Ass'y (PB-44S)
	Fuse, 2A, φ5.2	FH7F020	"
	Relay, Reel Motor switching	RY1DC029	"
	Resistor, 18 ohm, 3W	R8DJ180M	"
	11 ohm, 3W	R8DJ110M	"
	5.1 ohm, 3W	R8DJ5R1M	"
	100 ohm, 5W	R93-002K	"
	Spark Killer 0.1µF+120 ohm (250 WV)	CZ20001W	"
	Connector, 3P pair, MB	CN403031	"
	" 3P	CN403075	"
	" 6P pair, MA and	CN406035	"
	" 6P MC	CN406077	"
4-7	Capacitor, Reel Motor, 9 µF (250 WV)	PB-76Z	Reel Ass'y
	P.C. Board, Capacitor
6-10	P.C. Board Ass'y, Power Switch	PB-76Q	Control Switch Ass'y
	Fuse, Power Supply, 3A	FH7E030	"
	Spark Killer, 0.033µF+120 ohm (250 WV)	CZ20004W	"
	Spark Killer 0.1µF+120 ohm (250 WV)	CZ20001W	"
	Switch, Push, POWER SPEED REEL	WH12008	"
8-17	Receptacle, A.C.Inlet, Power	CN603012	Connector
	Power Cord	PZ9D003[sic]	Panel Ass'y

10-2 ASSEMBLY HARDWARE CODING↑ TOP

All screws conform to ISO standard, and have a cross-recessed head, unless otherwise noted.

ISO screws have a point inscribed in the head as in the following figure.

⤢ zoomTwo cross-section screw-head profiles with L and D dimension arrows, and a magnified circled cross-recess point icon with a leader arrow

EXAMPLE OF SCREW

⤢ zoomA diagram of the code BS3x6N with leader lines labelling plating, length, diameter and type of screw, and a key giving the plating letters

BS3×6N Plating Length in mm(L) Diameter in mm(D) Type of Screw

No Indication...Zinc N ...Nickel B ...Black Zinc K ...Black Nickel

EXAMPLE OF WASHER

⤢ zoomA diagram of the code 3SW with leader lines labelling type of washer and diameter in mm

3SW Type of Washer Diameter in mm

No.	Code	Full Name
1	BS	Bind SEMS Screw
2	PS	Pan SEMS Screw
3	TS	Triple Screw
4	B	Binding Head Screw
5	P	Pan Head Screw
6	F	Flat Countersunk Head Screw
7	O	Oval Countersunk Head Screw
8	H	Hex Head Bolt
9	T	Truss Head Screw
10	C	Hex Socket Head Screw
11	S	Hex Socket Headless Set Screw
12	W	Flat Washer
13	SW	Spring Washer
14	N	Hex Nut
15	LW	Lock Washer
16	K	Knop Washer
17	FW	Fiber Washer
18	FC	Flat Head Socket Cap Screw
19	BC	Button Head Socket Cap Screw

10-3 PARTS LISTS AND EXPLODED VIEW↑ TOP

PARTS LIST 1. HEAD ASSEMBLY↑ TOP

Ref.No.	Description	Part No.	Notes
1-1	Head Housing Ass'y	KH-2H-A
1-2	Stud, Head Housing Ass'y	KH4Y005
1-3	Plate, Head Mount Base	KH0C039
1-4	Bracket, L, P.C. Board	KH2K002
1-5	Bracket, R, P.C. Board	KH2K001
1-6	P.C. Board Ass'y, Head	PB-76E
1-7	Washer, Conical Spring	PZ1E001
1-8	Head, Erase, 4T/4CH	GH2E036
1-9	Head, Record, 4T/4CH	GH2R037
1-10	Head, Reproduce, 4T/4CH	GH2P038
1-11	Plate, Trim, Head Housing Ass'y	KH0F038
1-12	Cover, Front, Head Housing Ass'y	KH0F037
1-13	Guide, Head	KG2B007
1-14	Connector, Head P.C. Board	CN328005
1-15	Bracket, Connector	KH4Y004
1-16	Plate, Shield	KH4Y001A
1-17	Washer, Polyslider, φ3×t0.5	F524-3

⤢ zoomAn exploded view of the head assembly: the head housing cover, its mounting screws and washers, the head mounting base plate with the erase, record and reproduce heads and their brackets and springs, the head P.C. board and connector, and the front cover and shield plate, with numbered callouts matching the parts list

EXPLODED VIEW 1. HEAD ASSEMBLY

PARTS LIST 2. CHASSIS ASSEMBLY↑ TOP

Ref. No.	Description	Part No.	Notes
2-1	Panel, Trim, Transport	(T506408)	Ass'y T5064-A
	Escutcheon, Pitch Control	(KC4H005A)
	Escutcheon, Cue	(KR4B006A)
	Escutcheon Ass'y, Timer	(T5064-B)
2-2	Shaft, Tape Guide	KG6E003
2-3	Panel, Trim, Control	T506402
2-4	Panel, Chassis, Transport	T506401
2-5	Clamp, Wire	PZ1G053
2-6	Channel, Reinforce, Chassis	T506405
2-7	Angle, Reinforce, Chassis	T506414
2-8	Spacer, P.C. Board, LED (B)	(KZ7A823)	Ass'y
2-9	P.C. Board Ass'y, LED (B)	PB-82T
2-10	Transformer, Power	TF11060
2-11	Angle, Reinforce, P.C. Board	PB44S01
2-12	Frame, Chassis, Side	T506501
2-13	Angle, L, P.C. Board, Control	T506505
2-14	Angle, R, P.C. Board, Control	T506506
2-15	Angle, P.C. Board, Control	T506504
2-16	P.C. Board Ass'y, Control	PB-44S
2-17	Channel, Reinforce, P.C. Board	T506502
2-18	Spacer, P.C. Board, Control	T506503
2-19	Angle, Reinforce, Chassis	T506604
2-20	Washer, Trim, Panel	KZ6C051
2-21	Washer, Vinyl, Panel	KZ6C011
2-22	Washer, Panel, Control	KZ6C009
2-23	Washer, Polyslider, φ6 × t0.25	F523-6
2-24	Felt, Blind, Impedance Roller	PZ1B051
2-25	Felt, Blind, Head Ass'y	PZ1B052
2-26	Clamp, Wire	KZ3A032

⤢ zoomAn exploded view of the chassis assembly: the transport and control trim panels with their pitch-control, cue and timer escutcheons, the chassis panel and its cutouts, the side frames, and the reinforcing angles and channels, with numbered callouts matching the parts list

EXPLODED VIEW 2. CHASSIS ASSEMBLY

PARTS LIST 3. CAPSTAN, PINCH ROLLER and SHIFTER ASSEMBLY↑ TOP

Ref. No.	Description	Part No.	Notes
3-1	Cap, Capstan Motor	KC0B011A
3-2	Stud, Capstan Motor	KZ7B220
3-3	Plate, Capstan Motor	KC4H001
3-4	Motor, Capstan	MR5A008
3-5	Bracket, R, Capstan P.C. Board	KC4V002
3-6	Bracket, L, Capstan P.C. Board	KC4V001
3-7	Knob, Pitch Control	KN1024A
3-8	P.C. Board Ass'y, LED (A)	PB-82S
3-9	Felt, Blind, Potentiometer	PZ1B037
3-10	Potentiometer, 500 ohm	RV252009
3-11	Bracket, Potentiometer	KC4H002
3-12	Cap, Pinch Roller	KP0C021
3-13	Washer, Polyslider, φ6 × t0.25	F523-6
3-14	Pinch Roller	KP-2B-A
3-15	Retaining Ring, E type, φ4	F74TE20
3-16	Shaft, Pinch Roller	KP0B014
3-17	Angle, Spring Hook	KZ3A023
3-18	Retaining Ring, E type, φ3	F74TE15
3-19	Retaining Ring, E type, φ2	F74TE09
3-20	Shaft, Roller Arm	KP4L001
3-21	Spring, Roller Arm	GS1011
3-22	Arm Ass'y, Pinch Roller	KP-2H-A
3-23	Solenoid, Pinch Roller	GP1B10
3-24	Pin, Solenoid	KZ5A003
3-25	Rod, Solenoid	KZ6A022
3-26	Spacer, P.C. Board Ass'y, LED (A)	KZ7A823
3-27	Cushion, Solenoid	PZ1C021
3-28	Limit Stop, Solenoid	KZ2A016
3-29	Washer, Spherical, Rod	KP0G004
3-30	Spring, Pressure, Rod	GS2003
3-31	Nuts, M4, Rod	F517-4
3-32	Spring, Shifter Arm B	GS1028-A
3-33	Shaft, Shifter Arm	KR4B001
3-34	Arm, Shifter A	KR0B005

⤢ zoomAn exploded view of the capstan, pinch roller and shifter assembly: the capstan motor and its mounting plate and cap, the pitch control potentiometer, the pinch roller and its arm, cap and solenoid, the cue arm and its switch and latch, and the shifter arms and springs, with numbered callouts matching the parts list

EXPLODED VIEW 3. CAPSTAN, PINCH ROLLER, and SHIFTER ASSEMBLY

PARTS LIST 3. CAPSTAN, PINCH ROLLER, and SHIFTER ASSEMBLY

Ref. No.	Description	Part No.	Notes
3-35	Arm, Shifter B	KR0B006
3-36	Knob, Cue Arm	KR4F002A
3-37	Felt, Blind, Cue Arm	PZ1B001
3-38	Shaft, Cue Arm	KR4B007
3-39	Arm, Cue	KR4C001
3-40	Switch, Micro	WH51029
3-41	Bracket Ass'y, Switch, Cue	KR-4K-A
3-42	Spring, Cue Arm	GS1033
3-43	Hook, Cue Arm	KR4C003
3-44	Latch Ass'y, Cue Arm	KR-4C-A
3-45	Spring, Shifter Arm	GS1087
3-46	Lug, Spring Hook	CN7D-003

⤢ zoomThe same exploded view of the capstan, pinch roller and shifter assembly, repeated here after the continued parts list, with the same numbered callouts as before

EXPLODED VIEW 3. CAPSTAN, PINCH ROLLER and SHIFTER ASSEMBLY

PARTS LIST 4. REEL ASSEMBLY↑ TOP

Ref. No.	Description	Part No.	Note
4-1	Nails, Reel Drive	KW0E038
4-2	Reel Table	KW4J002
4-3	Drum, Reel	KW0B017
4-4	Protector, Reel	KW0H007A
4-5	Bracket, Reel Motor	KW0G016
4-6	Motor, Reel	MR1C023
4-7	Capacitor, Reel motor, 9 µF, 250WV	(CZ10047W)	Ass'y PB-76Z
	P.C. Board, Capacitor	(PB9A179)
4-8	Bracket, L, Capacitor	KW4B003
4-9	Bracket, R, Capacitor	KW4B004
4-10	Bracket, L, Brake	KW0G013
4-11	Bracket, R, Brake	KW0G012
4-12	Retaining Ring, E Type, φ2	F74TE09
4-13	Arm Ass'y, Brake	KW-4J-A
4-14	Spring, Brake	GS1024
4-15	Clamp, Brake	KZ3A047
4-16	Pin, Solenoid, Brake	KZ5A003
4-17	Retainer, Brake	KW4B001[sic]
4-18	Drum, Brake	KW0A012
4-19	Solenoid, Brake	GP1F02
4-20	Cushion, Solenoid, Brake	PZ1B049
4-21	Retaining Ring, E Type, φ3	F74TE15

⤢ zoomAn exploded view of the reel assembly: the supply and take-up reel tables and hubs, the reel motors and their mounting brackets, the brake bands, drums and solenoids, and the reel motor capacitor and its P.C. board, with numbered callouts matching the parts list

EXPLODED VIEW 4. REEL ASSEMBLY

PARTS LIST 5. TENSION ARM, IMPEDANCE ROLLER, and TIMER ASSEMBLY↑ TOP

Ref. No.	Description	Part No.	Notes
5-1	Cap, Arm	KA0C005
5-2	Arm, Tension	KA0A017A
5-3	Shaft, Arm	KA4J001
5-4	Washer, Polyslider, φ5 × t0.5	F524-5
5-5	Holder, Arm	KA0B008
5-6	Guide, Tension Arm	KG2D001
5-7	Nut, Holder	KZ6D004
5-8	Drum, B, Spring Retaining	KA0E005
5-9	Arm, Ass'y, Switch	KA-4K-B
5-10	Switch, Micro	WH51027
5-11	Bracket Ass'y, Magnet	KA-4K-A
5-12	Spring, Takeup, Tension Arm	GS1048
5-13	Angle, Spring Hook	KZ3A023
5-14	Plate, Spring Hook	KZ3A024
5-15	Drum, A, Spring Retaining	KA0E004
5-16	Angle, Limit Stop	KA0H004
5-17	Spring, Supply Tension Arm	GS1032
5-18	Roller Ass'y, Impedance	KI-2D-A
5-19	Washer, Holder	KI0H024
5-20	Nut, Holder	KI0H025
5-21	Holder, Plate	KI0H026
5-22	Plate, Optical Shield	KI4G003
5-23	P.C. Board Ass'y, Direction	PB-82M
5-24	Bracket, P.C. Board Ass'y	KI4G002
5-25	Sheet, Insulation	SR5K002
5-26	P.C. Board Ass'y, Timer	PB-82L
5-27	Button, Push, Memory	KN2067
5-28	Felt, Blind, Button	PZ1B053
5-29	Bracket, Switch, Memory	SR5K001
5-30	Switch, Push, Memory	WH12097
5-31	Lug, Terminal	CN7D-003

⤢ zoomAn exploded view of the tension arm, impedance roller and timer assembly: the tension arm and its spring-loaded hub and drums, the impedance roller and its optical shield plate, the timer and memory pushbuttons, and their mounting brackets and P.C. boards, with numbered callouts matching the parts list

EXPLODED VIEW 5. TENSION ARM, IMPEDANCE ROLLER, and TIMER ASSEMBLY

PARTS LIST 6. CONTROL SWITCH ASSEMBLY↑ TOP

Ref. No.	Description	Part No.	Notes
6-1	Button, Push, A PLAY REWIND F.FWD EDIT	KN2069
6-2	Button, Push, B, REC	KN2070
6-3	Button, Push, C, STOP	KN2071
6-4	Protector, R, Button	CB20602
6-5	Plate, R, Switch Base	CB20601
6-6	Switch, Micro	WH11007
6-7	Button, Push, POWER SPEED REEL	KN2072
6-8	Protector, L, Button,	CB20701
6-9	Plate, L, Switch Base	PB41E01
6-10	P.C. Board, Ass'y, Power Switch	PB-76Q
6-11	Stud, Power Switch P.C. Board	KZ7B106
6-12	P.C. Board Ass'y, Aux. Switch	PB-42F

⤢ zoomAn exploded view of the control switch assembly: two rows of pushbutton switches and their caps mounted on switch base plates, with the switch P.C. boards and their mounting studs below, and numbered callouts matching the parts list

EXPLODED VIEW 6. CONTROL SWITCH ASSEMBLY

PARTS LIST 7. AMPLIFIER ASSEMBLY↑ TOP

Ref. No.	Description	Part No.	Notes
7-1	Knob, LINE	KN1045B
7-2	Knob, TEST OSC	KN1045F
7-3	Knob, PHONE LEVEL	KN1045D
7-4	Knob, MIC	KN1045C
7-5	Button, READY/SAFE	KN1060
7-6	Button, MONITOR SELECT	WH0B016B
7-7	Button, PHONE	KN1061
7-8	Washer, Knob, Amp.	KZ6C052
7-9	Panel, Trim, Amp.	A104501
7-10	Meter, VU	ME11010	Ass'y
	Lamp, VU Meter	(ME11010A)
7-11	Cushion, Meter	A104513
7-12	Panel, Chassis, Amp.	A104502
7-13	P.C. Board Ass'y, MIC ATT.	PB-82R
7-14	Jack, MIC EXT-OSC	CN601142
7-15	Jack, PHONES	CN602144
7-16	Potentiometer, Amp., 10 kohm	RV214082
7-17	Switch, Rotary, TEST OSC	WH63039
7-18	Felt, Blind, Button	PZ1B053
7-19	Felt, Blind, Slide Switch	PZ1B046
7-20	Switch, Push, MONITOR SELECT	WH12098
7-21	Switch, Push, READY/SAFE	WH12099
7-22	P.C. Board Ass'y, LED, MONITOR SELECT	PB-82Q
7-23	Switch, Push, PHONES	WH12100
7-24	P.C. Board Ass'y, Phone Amp.	PB-15A
7-25	P.C. Board Ass'y, LED, PEAK	PB-82P
7-26	P.C. Board Ass'y, LED, READY	PB-82N
7-27	Bracket, Jack	A104509A
7-28	Panel, Connector	A104805
7-29	Cover, Amp.	A104815
7-30	P.C. Board Ass'y, Amp. Control	PB-45E

⤢ zoomAn exploded view of the amplifier assembly: the front control panel with its knobs, pushbuttons and VU meter, the P.C. board assemblies for MIC attenuation, LED indicators and amp control, and the connector jacks, potentiometer and switches, with numbered callouts matching the parts list

EXPLODED VIEW 7. AMPLIFIER ASSEMBLY

PARTS LIST 7. AMPLIFIER ASSEMBLY

Ref. No.	Description	Part No.	Notes
7-31	P.C. Board Ass'y, REC/REP Amp.	PB-15M	NAB
		PB-15N	IEC
7-32	P.C. Board Ass'y, Mother	PB-76D	Ass'y
7-33	Guide, P.C. Board	(CN7B-023)
7-34	Cover, Bottom, Amp.	A104809
7-35	Pad, Retainer	A104818
7-36	Pad, Retainer	A104819
7-37	Washer, Trim, Panel	KZ6C051
7-38	Washer, Vinyl, Panel	KZ6C011

⤢ zoomThe same exploded view of the amplifier assembly, repeated here after the continued parts list, with the same numbered callouts as before

EXPLODED VIEW 7. AMPLIFIER ASSEMBLY

PARTS LIST 8. CONNECTOR PANEL ASSEMBLY↑ TOP

Ref. No.	Description	Part No.	Notes
8-1	Panel, Connector, Amp.	A104805
8-2	Connector, 3 Socket, XLR Type	CN103046
8-3	Connector, 3 Pin, XLR Type	CN103045
8-4	Connector, Male, Power Supply	CN225135
8-5	Connector, Male, Erase/Record Head	CN220134
8-6	Connector, Male, Reproduce Head	CN216127
8-7	Clamp, Connector	CN7B-061
8-8	Connector, Female, Power Supply	CN225136
8-9	Connector, Female, Erase/Record Head	CN220200
8-10	Connector, Female, Reproduce Head	CN216128
8-11	Cable Ass'y, Power Supply	ZA-62Z
8-12	Cable Ass'y, Erase/Record Head	ZA-62Y
8-13	Cable Ass'y, Reproduce Head	ZA-62X
8-14	Cover, Ventilation	K105815
8-15	Cover, Rear, Transport	T506601
8-16	Panel, Connector, Transport	T506602
8-17	Receptacle, A.C. Inlet, Power	CN603012
8-18	Terminal, Ground	CN901040
8-19	Connector Ass'y, Remote Control	CN7C-006
8-20	Angle, Ventilation Cover	KZ3A045
8-21	Washer, Trim, Panel	KZ6C051
8-22	Washer, Vinyl, Panel	KZ6C011

⤢ zoomAn exploded view of the connector panel assembly: the rear panel with its XLR input and output connectors, power cable assemblies, ventilation cover, AC power receptacle, ground terminal and remote connector, with numbered callouts matching the parts list

EXPLODED VIEW 8. CONNECTOR PANEL ASSEMBLY

PARTS LIST 9. CASE ASSEMBLY↑ TOP

Ref. No.	Description	Part No.	Notes
9-1	Amplifier Ass'y	A1048
9-2	Board, Side, L	K105801
9-3	Board, Side, R	K105802
9-4	Cover, Ventilation	K105815
9-5	Reel Ass'y	KW-2E
9-6	Tension Arm Ass'y A	KA-2H
9-7	Head Ass'y	KH-2K
9-8	Impedance Roller Ass'y	KI-2D
9-9	Capstan Ass'y	KC-4V
9-10	Pinch Roller Ass'y	KP-2H
9-11	Tension Arm Ass'y	KA-2I
9-12	Control Switch Ass'y A	CB-234
9-13	Cover, Front, Upper	K105814
9-14	Control Switch Ass'y B	CB-238
9-15	Stud, Spacer, Cover	KZ7B134
9-16	Plate, Retainer, Front Cover	K105804
9-17	Channel, Retainer, Front Cover	K105807
9-18	Frame, Bottom	K105812
9-19	Cover, Bottom	K105816
9-20	Angle, Retainer, Front Cover	K105819
9-21	Bracket, L, Front Cover	K105820
9-22	Bracket, R, Front Cover	K105821
9-23	Angle, Retainer, Front Cover	K105818
9-24	Cover, Front	K105817
9-25	Foot	CY4058
9-26	Washer, Trim, Panel	KZ6C028
9-27	Washer, Trim, Panel	KZ6C051
9-28	Washer, Vinyl, Panel	KZ6C011

⤢ zoomAn exploded view of the case assembly: the amplifier front panel and chassis frame, the side boards, front and bottom covers, and their retaining brackets, angles, studs and feet, with numbered callouts matching the parts list

EXPLODED VIEW 9. CASE ASSEMBLY

PARTS LIST 10. PACKAGING↑ TOP

Ref. No.	Description	Part No.	Notes
10-1	Case, Packing	K705301
10-2	Packing, Top	K705302
10-3	Cover, Accessory Box	K705710
10-4	Accessory, Hold Down Knob	KWOHC
10-5	Accessory, Reel, NAB 10 1/2"	ZA-51H
10-6	Accessory, Instruction and Maintenance Manual	OS3-035
10-7	Cover Polyethylene	PZ9C047
10-8	Cover, Cloth	PZ9C034
10-9	Packing, Bottom	K705309
10-10	Packing Side	K705312

⤢ zoomAn exploded view of the packaging: the shipping carton, its foam corner and side blocks, the polyethylene and cloth covers, and the accessory box with its reel and manual, with numbered callouts matching the parts list

EXPLODED VIEW 10. PACKAGING

10-4 PIN IDENTIFICATION↑ TOP

The following table shows the pin identification of all diodes, LEDs transistors, and integrated circuits (ICs), used in the circuits of this equipment.

⤢ zoomPinout diagrams D-1 through D-9 for the diodes, LEDs and photo interrupter used in this equipment, showing each device's outline, lead or pin arrangement and anode, cathode or terminal labels

TRANSISTOR Tr-1 QA720R (2SA720R) QA1015GR (2SA1015GR) QA1020Y (2SA1020Y-) QC1685R (2SC1685R) QC1815BL (2SC1815BL) BOTTOM VIEW Tr-2 QA798G (2SA798G) BOTTOM VIEW Tr-3 QB564L (2SB564L) BOTTOM VIEW Tr-4 QB616R (2SB616R) Tr-5 QC2324K (2SC2324K) Tr-6 Q2SK105J (2SK105J) Q2SJ74BL (2SJ74BL) BOTTOM VIEW Tr-7 Q2K146BL (2SK146BL) BOTTOM VIEW

IC IC-1 TRANSISTOR ARRAY ITD 62301 (TD 62301) TOP VIEW IC-2 TRANSISTOR ARRAY IM54533P (M54533P) TOP VIEW IC-6 IHA12017 (HA12017)

IC-3 VOLTAGE REGULATOR IHC14305(µPC14305) IHC14315(µPC14315) or IE15UC(µA7815UC) IHC14324(µPC14324) TOP VIEW IC-4 VOLTAGE REGULATOR IMC7915C (MC7915CT) or IE7915UC (µA7915UC) TOP VIEW IC-5 I-0001 (NJM4559DE) I-0009 (NJM4556DE) TOP VIEW IC-7 IRC555DB (RC555DB) TOP VIEW

⤢ zoomPinout diagrams for transistors Tr-1 through Tr-7 and integrated circuits IC-1 through IC-7, showing each device's outline, bottom or top view, and its numbered pins or lettered terminals

IC-8 DECK CONTROL I-0012 TOP VIEW

IC-9 DIRECTION I-0012 TOP VIEW

IC-10 TIMER I-0012 TOP VIEW

IC-11 IMC 14001 (MC 14001B) TOP VIEW IC-12 IMC 14011 (MC 14011B) TOP VIEW IC-13 IMC 14013 (MC 14013B) TOP VIEW IC-14 IMC 14015 (MC 14015BCP) TOP VIEW

IC-15 IMC 14049 (MC 14049B) TOP VIEW IC-16 IMC 14050 (MC 14050B) TOP VIEW IC-17 IMC 14069 (MC 14069B) TOP VIEW IC-18 IMC 14071 (MC 14071B) TOP VIEW

⤢ zoomPinout diagrams for integrated circuits IC-8 through IC-18, including the deck control, direction and timer ICs and various logic gates, showing each device's outline and numbered pins

IC-19 IMC 14073 (MC 14073B) TOP VIEW IC-20 IMC 14081 (MC 14081B) TOP VIEW IC-21 IMC 14538 (MC 14538B) TOP VIEW

IC-22 IMC 14584 (MC 14584B) TOP VIEW IC-23 IMSM 561 (MSM 561RS) TOP VIEW IC-24 IALS05N (SN74LS05N) IA06N (SN7406N) TOP VIEW

IC-25 IA07N (SN7407N) TOP VIEW IC-26 IALS190N (SN74LS190N) TOP VIEW IC-27 IALS259N (SN74LS259N) TOP VIEW

⤢ zoomPinout diagrams for integrated circuits IC-19 through IC-27, showing each device's outline and numbered pins

MX5050 MK-III 4 TAPE RECORDER

SCHEMATIC DIAGRAMS↑ TOP

TYPE L

OTARI PART No.	ASSEMBLY NAME	DWG. No.
PB76E0A	Head Connection PCB Ass'y	4-28961
T50660B	Tape Transport Wiring Diagram	3-9053
PB82L0A	Timer PCB Ass'y	4-28963
PB44S0BA	Control PCB Ass'y	3-9052
PB82R0A	MIC ATT PCB Ass'y	4-28965
PB15M0A	REC REP AMP PCB Ass'y	3-8499
PB45E0A	AMP Control PCB Ass'y	3-6649
PB76D0A	Mother PCB Ass'y	3-6287
PB15A0A	Head Phone PCB Ass'y	3-6399

MX5050 MK-III 4 22.DEC.1983

⤢ zoomThe schematic diagrams index sheet, listing the nine printed circuit board assemblies, their Otari part numbers and drawing numbers

HEAD PCB Assy↑ TOP

⤢ zoomSchematic diagram sheet for the Head Connection PCB Ass'y, PB76E0A

TAPE TRANSPORT↑ TOP

⤢ zoomSchematic diagram sheet for the Tape Transport Wiring Diagram, T50660B

TIMER PCB Assy↑ TOP

⤢ zoomSchematic diagram sheet for the Timer PCB Ass'y, PB82L0A

MIC ATT PCB Assy↑ TOP

⤢ zoomSchematic diagram sheet for the MIC ATT PCB Ass'y, PB82R0A

CONTROL P.C.B. Assy↑ TOP

⤢ zoomSchematic diagram sheet for the Control PCB Ass'y, PB44S0BA

REC REP AMP Ass'y↑ TOP

⤢ zoomSchematic diagram sheet for the REC REP AMP PCB Ass'y, PB15M0A

⤢ zoomSchematic diagram sheet whose title block is too faint to transcribe; the p145 index identifies it as the AMP Control PCB Ass'y, PB45E0A

MOTHER PCB Assy↑ TOP

⤢ zoomSchematic diagram sheet for the Mother PCB Ass'y, PB76D0A

HEADPHONE AMP PCB Assy↑ TOP

⤢ zoomSchematic diagram sheet for the Head Phone PCB Ass'y, PB15A0A