Sanyo plus-d65 Service Manual

Page 1

SPECIFICATIONS

Таре	Metal, CrO2, FeCr and Normal tape	Input:
Tape speed	1-7/8 ips. (4.75 cm/sec)	Mic Sensitivity	0.3mV
Recording time	60 minute (60 cassette)	Applicable
Recording System	AC bias 1/4 track stereo	mic impedance	400 ohms – 10 kohms
Erasing System	AC erasing 1/2 track	Line Sensitivity	50mV
Wow & Flutter	0.04% WRMS	Input impedance	50 kohms
Frequency Response		Output:
CrO2	30 – 16,000Hz	Line output level	0.775V (at OVU)
FeCr	30 — 16,000Hz	Load impedance	7 kohms
Normal	30 – 13,000Hz	Headphone
Metal	30 – 18,000Hz	impedance	8 ohms – 10 kohms
S/N Ratio (CrO2)		Power source	AC 120V, 60Hz
Dolby-on	67dB	Power Consumption	35W
Dolby-off	59dB	Dimensions (Approx.	) 17-5/16"(W) x 11-1/2" (D) x5-1/2"(H)
F Fwd & Rewined Ti	me		(440(W) x 293(D) x 140(H) mm)
(C-60)	Approx. 105 sec.	Weight (Approx.)	16 lbs. 8 ozs. (7.5kg)
•eeroo autome•C)	1985 - R.G R.G. M. R. R. 1999 - M. R. 1999 - M. 1999 - 1999	* Specifications subject	ct to change without notice

Page 2

HOW TO DISASSEMBLE THE SET_

Pull off power cord from wall outlet.

1. DISMOUNTING THE CABINET (See Page. 18)
Remove six screws Y3 and six washers Y25 from the cabinet.
2. DISMOUNTING THE FRONT PANEL (See Page. 18)
- a. Remove four lever knobs (14), two input level control knobs (11, 12), and one output level control knob (13) from the front panel of the set.
- Remove two special screws (10) from cassette comp. lid (9) to detach the lid.
- c. Remove four screws Y1 from four brackets (6) for setting the pushbutton positions, and dismount all brackets.
- d. Remove seven screws Y22 which are securing front panel (1) and bracket panel (23), and detach the front panel from the bracket panel.
3. DISMOUNTING THE MECHANISM CONTROL BLOCK Fig. 1
- Take off sockets which are connected to mechanism control block.
- b. Remove two screws Y15 and lug (64) of the bracket (32) which is sccuring mechanism control PCB (152) and mechanism driver PCB (153).
- c. Remove two screws Y4 and lug (64) which are securing mechanism driver PCB (153). Then, the back side of each PCB can be checked.

4. DISMOUNTING THE MECHANISM (Fig. 2)

a. Remove a screw Y14 securing operation mode PCB (156), and a screw Y12 securing the mechanism beneath said PCB.
b. Remove a screw Y20 from spring plate (56) and bracket pilot (57) which are fitted to the mechanism.
c. Remove a screw Y12 from fixer (63) fitted to the bracket panel.

d. Remove two screws Y12 securing mechanism and bracket panel.
e. Remove screw Y11 securing bottom lid and mechanism.
f. Detach R/P head, E head sockets from amplifier PCB, and slide the mechanism backward, then lift it to dismount.

5. REPLACING THE BELT (Fig. 3)

* Instructed below is the method of replacing the pulley belt (111) and flywheel belt (112) alone.
a. Remove two screws Y2 from reinforcement (8) to dismount it.
b. Remove five screws Y2 and lugs (3) which are fastening chassis and subchassis.
c. Separate subchassis from chassis, then the pulley belt (111) and flywheel belt (112) can be replaced.
d. When assembling, first apply the flywheel belt which is located in deeper position, then put in pulley belt, while holding the flywheel to prevent it from dropping off. Hold both belts with hands while mounting so that they may not be dislocated. Use special care in this work.
e.. After threading the belts, join the chassis with subchassis, and check the configuration of levers (41, 43) and switch (99).
* Place the mechanism so that the chassis counter section comes to the right hand near side, set both levers (41, 43) on the switch (99).
f. Then assemble in the order of step b and a. Replacement of other belts, of which procedure is easy, is omitted here.

Page 3

Fig. 2

Page 4

6. REPLACING THE HEAD (Fig. 4) To replace, detach and attach as shown. In this case, be careful not to mistake the lead wire colors and terminal positions, nor to apply excess heat to the head terminal when soldering.

7. FITTING THE EJECT SWITCH FOR OPENING AND CLOSING CASSETTE COMPARTMENT LID (Fig. 5) When fitting eject switch with screws Y17:
- a. Make sure the tip of lever (35) is put on the switch.
- b. Extend the switch leads from the roots as shown by the arrows.
- c. When fitting the switch, turn it in the direction of the arrow.

8. THREADING THE ROPE FOR OPENING AND CLOSING CASSETTE COMPARTMENT LID (Fig. 6)

Tie the rope to fixer (42), and bind the other end to spring coil (40). Prepare the rope exactly in the length of 140 mm.

Hook fixer on the shaft, wind rope around gear by three turns, then fit the end of spring coil to bracket.

Fig. 5

Page 5

- STOP OUT:

When any one of FF OUT, REW OUT, PAS(PAUSE) OUT REC OUT is at "L" level, STOP OUT is at "H" level. — Timer start timing (CR3, pin 21) In t3 (sec) time after turning on power, TMS OUT becomes "H" level. If FWD/REV IN is set to "L" within this t3 duration, PLY OUT is set to "L" level.

Page 6

MODE TRANSITION TABLE

MULTI PLEX INPUT PROCESSING TABLE


	FWD	REV	FF	REW	STP	PAS	REC	REC PAS(F)	REC PAS(R)	REC FWD	REC REV
FWD		FWD	FWD	FWD	FWD	FWD	REC FWD	REC FWD	REC FWD		REC FWD
REV	REV		REV	REV	REV	REV	REC REV	REC REV	REC REV	REC REV
FF	FF	FF		FF	FF	FF	FF	FF	FF	FF	FF
REW	REW	REW	REW		REW	REW	REW	REW	REW	REW	REW
STP	STP	STP	STP	STP		STP	STP	STP	STP	STP	STP
PAS	PAS	PAS			PAS		REC PAS			REC PAS	REC PAS
REC					REC	REC PAS
(REC)× (PAS)	REC PAS(F)	REC PAS(R)			REC PAS	REC PAS	REC PAS			REC PAS(F)	REC PAS(R
(REC)× (FWD)	REC FWD	REC FWD	REC FWD	REC FWD	REC FWD	REC FWD	REC FWD	REC FWD	R EC F W D		R EC F W D
(REC)× (REV)	REC REV	REC REV	REC REV	REC REV	R E C R E V	R EC R EV	REC REV	REC REV	REC REV	REC REV

					in the
Command Inp	ut (A)	FWD	REV	FF	REW	STP	PAS	REC	REC
Command Inp	ut (B)	IN	IN	IN	IN	IN	IN	IN	INHIBIT
	FWD IN		STP	STP	STP	STP	PAS	REC FWD	FWD
	REV IN	STI		STP	STP	STP	PAS	REC REV	REV
	FF IN	STP	STP		STP	STP	FF	FF	FF
	R EW I N	STP	STP	STP		STP	REW	REW	REW
	STP IN	STP	STP	STP	STP		STP	STP	STP
	PAS IN	PAS	PAS	FF	REW	STP		REC PAS	PAS
	REC IN	REC FWD	REC REV	FF	REW	STP	REC PAS		STP
	(REC)× (PAS)	REC PAS(F)	REC PAS(R)	FF	REW	STP			PAS
	(REC)× (FWD)		STP	STP	STP	STP	REC PAS(F)		FWD
	(REC)× (REV)	STP		STP	STP	STP	REC PAS(R)		REV
	REC INHIBIT	FWD	REV	FF	REW	STP	PAS	*

NOTE: 1 : State does not change.

2. (A) x (B) simultaneous input of A and B

NOTE; * Holds previous stage.

TRUTH VALUE TABLE

FF OUT

Autput

Mode FWD

REV

REW

PAS

REC PAS(F REC PAS(R REC FWD REC FWD

NOTE ; * Hold

DESCRIPTION OF TERMINALS

REW OUT	PLY OUT	CAD OUT	PAS OUT	STP OUT	REC OUT	TM S OUT	Terminal No.	Terminal Name	Operation	Level in operation
0	1	0	0	ď	0	0	1	GND	Ground	0(V)
0	1	0	U	0	U	U	2	REW IN	Rewind command input	L
0	1	1	0	0	0	0	3	FF IN	Fast-forward command input	L
-	-						4	EBR IN	Electric brake reset input	L
0	0	*	0	0	0	0	5	CR 1	Reset input upon power ON	L
							6	STP IN	Stop command input	L
1	0	*	0	0	0	0	7	REV IN	Reverse playback command input	L
							8	FWD IN	Forward playback command input	L
0	0	*	0	1	0	0	9	PAS IN	Pause command input	L
							10	REC IN	Record command input	L
0	0	*	1	0	0	0	11	REC INH	Record inhibit command input	L
0				0			12	PAS OUT	Pause mode output	L
0	0	*	0	0	1	0	13	PLY OUT	Playback mode output	L
٥	0	0	1	0	1	0	14	REC OUT	Record mode output	L
	0	Ŭ	1		1	Ŭ	15	CAP OUT	Capstan rotating direction output	FWD, H; REV.,L
0	0	1	1	0	1	0	16	CR2	DPLY time constant
	,		-				17	DPLY OUT	Playback operation output	L
0	1	0	0	0	1	0	18	BRK OUT	Brake release output	L
							19	STP OUT	Stop mode output	L
0	1	1	0	0	1	0	20	TMS OUT	Timer start output	L
						1	21	CR3	Timer start time constant
s prev	ious sta	ate.					22	FF OUT	Fast-forward mode output	L
							23	REW OUT	Rewind mode output	L
							24	Vcc	Power source terminal	5.0 - 5.5(V)

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Page 9

CIRCUIT DESCRIPTION

1. CONTROL CIRCUIT

This set is equipped with feather-touch operation buttons and auto-reverse system, and the mechanism is composed of two motors and three plungers.

The control circuit comprises more than ten ICs and transistors which are mounted on IC 311 (AN 6251). This is a logic circuit.

The feature of the mechanism control is that many delay circuits (time constants) are used, so that the timing composition is very complicated.

(1) STATE HOLDING CIRCUIT UPON POWER COUT-OFF

The tape direction must be specified when turning on power or when the timer operates. In this unit, the operation of circuit switch (changeover of magnetic head, amplifier circuit) in foward (FWD) direction and reverse (REV) direction is effected by plunger (in the amplifier PCB), and re-input is fed to IC 311 by using this switch S1-6. Thus, the state before cutting off power is held.

(2) REWIND (REW)

By pressing REW button, an input is fed to REW-IN of IC311, and the output is delivered from REW-OUT. At this time STP-OUT becomes at "H" potential, and the motor starts to run. The output of REW-OUT is delayed (1) (0. 1sec.) by the portion of mechanism timing*, and is further delayed (2) (0.1 sec) by the portion of mechanism timing** when playing back or recording. This output is transmitted to both ends of the REW plunger through driver circit. Time constant pulse (1) generated in the one-short circuit of the start time is applied to F/R SOL (+) terminal, and the output is directly applied to REW SOL (-) terminal, so that the REW plunger starts to operated.

Eeven after expiration of time constant 1, the holding current flows, so that the plunger keeps the holding state.

When the plunger cuts off, the REW output ceases, so that the REW SOL (-) side driver is turned off.

Fig. 9

Page 10

CIRCUIT DESCRIPTION

(4) PAUSE (PAS)

By pressing PAS switch, an input is fed to PAS-IN of IC 311, and the output is delivered from PAS-OUT. The output of CAP-OUT retains the previous state. At the same time, STP-OUT is set to "H" level, and the motor starts to run. The PAS-OUT signal is delayed (6) (0.2 sec) by the portion of mechanism timing* through gate 7. This output is applied to the PLAY plunger through D 308, gate 10 to operated if.

The PAS–OUT signal also controls TAPE END–OUT through D331, gate 14.

PAS Switch → PAS - I N → Continued to ⓐ in REW operation PAS-OUT→ Continued to @ in FWD operation

(5) FORWARD PLAYBACK (FWD)

By pressing FWD switch, an input is fed to FWD–IN of IC 311, and the output is delivered from PLY– OUT. At this time, STP–OUT becomes "H" potential, and the motor starts to run.

The PLY-OUT output is delayed (6) (0.2 sec) to match with mechanism timing* through gate 7.

This output enters the driver circuit through D308, gate 10, and actuates the PLAY plunger by operating in the same procedure as in the rewinding circuit.

Simultaneously with the PLY-OUT output, the tape direction is indicated in CAP-OUT. When the indication of tape direction is changed, the output is delayed to match with the mechanism timing* by time constant 2 (0.3 sec). This output is applied to FF plunger to actuate it through gate 6, gate 4, and gate 3. When the direction indication is not changed, the PLY-OUT signal is delayed (6) (0.2 sec), and is delivered through gate 8 and gate 6.

The CAP-OUT output, after delay 5, controls the direction display together with the FF signal, and also

drives the plunger FWD for switch.

The REC-OUT signal, when at "H" potential, turns on PLAY switch through time constant 4. Besides PLAY MUTE is actuated through gate 11.

(6) REVERSE PLAYBACK (REV)

By pressing REV switch, an input is fed to REV-IN of IC 311. Thereafter, the circuit functions in the same manner as in FWD operation although the circuit composition differs.

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(7) FORWARD RECORDING (REC. FWD) By pressing REC and FWD switches simultaneously, inputs are fed to REC-IN and FWD-IN of IC 311, and outputs are delivered from PLY-OUT and REC-OUT. At this time, STP-OUT becomes "H" potential, and the motor starts. The output of REC-OUT

lights up REC-LED of the record indicator. Outputs from REC switch and PLY-OUT are

delayed (7) (0.05 sec) to match with the mechanism timing^* through gate 9. These outputs pass through gate 10, and actuate the PLAY plunger in the same circuit behavior as in the case of playback.

At this time, the foolproof switch in the mechanism operates, and when the foolproof pawl of cassette tape is broken, the switch is turned off, and an input is fed to REC–INHIBIT, so that IC 311 is set to PLAY mode. The CAP–OUT signal makes the same circuit action as in the case of playback.

The REC-OUT signal turns on REC OSC through time constant 5. Again, through gate 11 and gate 12, REC MUTE is actuated. When recording, by pushing REC MUTE switch, REC MUTE can be forced to be actuated through gate 13.

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(8) REVERSE RECORDING (REC. REV) By pressing REC and REV switches simultaneously, an input is frd to REC-IN of IC 311. Thereafter, the circuit action is almost similar to that of REC. FWD.

(9) OPERATION MODE SWITCH ACTION The operation mode switch is a holding type switch, consisting of three elements (-----------------------------------are wired in a prioritized circuit. Therefore, if two buttons are pressed at the same time, only one mode is made effective according to the order of priority. In " ---- " mode, the action is started, and a tape detection signal is issued at the end of tape, and gate D is opened by this signal (trigger) and D 316, so that an input is fed to STP-IN of IC 311, there by stopping the action. When all operation mode switches are set off the action is stopped similarly by means of D 317. Also in FF and REW, the action is stopped by D 318. In " " mode, the action is started, and upon reaching the tape end, when CAP-OUT signal passing through delay 8 and tape end signal passing through gate k for play mode judgment are issued. gate f is opened, then gate d is opened together with " " witch signal, so that an input is fed to REV-IN of IC 311, there by changing the direction. When a tape end signal is issued after this, gate b is opened by the tape end judgment signal of ". mode at gate e, and the action stops.

In ", mode, the action is started, and when a first tape end signal is issued, gate f or gate g of direction judgment is opened through gate k of play mode judgment. When gate f is opened, the tape direction is changed to forward, and when gate g is opened, the tape direction is set to reverse.

Besides, when gate g is opened, gate a is also opened, and REC action is stopped. When a second tape end signal is issued, the direction is changed similarly, from forward to reverse or vice versa, and REC action is stopped. When REC action stops, the mode is set to playback state, so that the playback operation continues thereafter.

The eject switch is closed when cassette lid is opened, thereby setting in STOP mode, and all actions are stopped.

(10) TIMER ACTION

The timer action indicates the tape direction within the time set by initial reset (2). The output from TMS-OUT passes through gate j and opens gate h or gate i according to direction switch, thereby indicating the tape direction.

After expiration of initial reset (1), (2) (power mute time), the setting is established by opening gates h, i in playback mode, or gates D320, h, i, D319 in record mode, according to the timer standby switch.

2. TAPE DETECTION CIRCUIT

When the tape is completely taken up in record/playback/ fast-fowarding mode, the unit automatically stops or inverts. This is because the tape end is detected and the mechanism is controlled. This tape end detection circuit is composed of four blocks.

(1) INFRARED DETECTION BLOCK

The tape ending part has the border to divide into the recordable magnetic band part and the nonmagnetic part. This border line is detected by a sensor, which is a mirror (112) composed by combining a near infrared ray emitting diode (LED 601) and a photo transistor (Q 601).

The infrared detecting method is as shown in Fig. 14. Figure 16 whows the infrared detection circuit, in which LED 601 and Q601 are said sensor. R473 is an input impedance resistor, and R472 and C411 constitute a low pass filter. R456 and R459 are resistors for voltage dividing, and R458 is a resistor for coupling. R455 and C406 make up a integrating circuit, and R457 is a resistor for coupling. IC402 (1) is a voltage comparator, of which resolution is about 10 mV.

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CIRCUIT DESCRIPTION.

When signal (A) (with Q601 being OFF) as shon in (x) in Fig. 15 is applied from the sensor, noise shorter in pulse width is eliminated by the low pass filter composed of R472 and C411.

Point (b) which is the (+) side input to IC402 is kept at a lower potential than that at point (a) according to the resistance dividing due to R456 and R459.

Point (c) is roughly at the same potential as point (a) because the input impedance of IC402 (1) is much larger than the resistance of R455. Therefore, since point (c) is at higher potential than point (b), the output of IC402 (1) is a low potential, -5V. This is the stationary state.

When signal (B) as shown in (x) in Fig. 15 (with Q601 being ON, the applied voltage hikes suddenly and continuously) is applied, the potential at point (b) rises similarly according to the resistance dividing ratio due to R456 and C459, but the potential at point (c) climbs as being delayed by the integral time constant of R544 and C406. As a result, the potentials at points (b) and (c) are inverted, and the output of IC402 (1) heightens to +5V. Afterwards, since the potential at point (c) becomes higher than that at point (b), the output of IC402 (1) is inverted to become -5V again. When IN varies in the direction of low voltage, the relation between points (b) and (c) maintains the previous circuit, so that the output of IC 402 (1) remains un changed.

In this circuit, the reference potential is made from input potential, and the potential difference between point (a) and point (b) can be securely judged if larger than 10mV.

In addition, the detections is stable regardless of difference in the sensor sensitivity or transparency (coloring) of the leader tape.

Fig.15

Fig. 16

Page 13

(2) CONTROL BLOCK

The purpose of this circuit is to prevent malfunction by detecting the leader tape when starting to take up from the leader tape part of cassette tape, and to stop operation of infrared detection block in fast-

forwarding mode. In operation, voltage comparator IC402 (2) composes a Schmitt circuit together with resistors R467 and R468, and the control input is delayed (T1) by the integrating circuit composed of resistor R494 and capacitor C410 as shown by waveform (e) in Fig. 17. Diode D432 is, to the contrary, intended to quicken the discharge of capacitor C410. To resistor R467 is applied a DC voltage as a required comparison voltage. As shown in Fig. 17, when the control signal becomes high level in playback mode, the potential at point (e) begins to elevate, and when exceeding the comparison voltage (-) side, the output of IC402 (2) changes from high potential to low potential at point (f).

WAVEFORMS OF CONTROL BLOCK

Fig. 17

(3) REEL ROTATION DETECTION BLOCK

All cassette tapes do not have leader tape, and some leader tapes are not transparent or have deep color or symbol printings, which cannot be detected by infrared rays. To cope with such case, a reel rotation stop detection circuit is provided, and malfunction is prevented by combining with the infrared detection circuit. The reel rotation stop is detected by the sensor which is constituted by combining the magnet of rotary shaft of tape counter and magnetic sensor (SDME).

When a rotation detection signal as shown by Z in Fig.18 is applied from the sensor, the IC402 (3) functions as amplifier, and the input signal is amplified. As schown by waveform i in Fig 18, the waveform is rectified by diode D425, and capacitor C413 is charged. Resistor R479 is for discharge time constant, and determines, together with C413, the stop detection time (T2, approx. 2 sec).

The rectified DC voltage is applied to the voltage comparator of IC402 (4) through resistors R478 and R480.

IC402 (4) is constituted to a Schmitt circuit by virtue of resistors R481 and R482, and is designed to have a certain hysteresis. Since a comparison voltage of about 2 V is applied to resistor R482, the upper limit is more than 2V, while the lower limit is less than 1.5 V. Therefore, as shown in Fig 18, When rotation detection signal disappears, the output of IC402 (4) changes from low potential to high potential after lapse of time T2. That is, stopping of reel rotation is detected when the reel rotation (magnet rotation) ceases.

(4) TAPE DETECTION BLOCK

Change of output signal of IT402 (4) is used in the automatic reverse and automatic stop circuits as the tape end signal

When control signal is not fed to the control block, transistor Q427 is ON, and the input of Q426 is shortcircuited to the ground. Therefore, if an input is generated from the infrared detection block, transistor Q426 is not operated.

When control signal is applied, and when rotation detection signal is applied to input Z and potential at point k in Fig 16 is high, if an infrared detection signal is applied to input x after lapse of time T1, transistor Q426 is set ON by the output of comparator IC402 (1), and the potential at point k in Fig. 18 is set to low potential (less than 1.5V) for a certain period of time through capacitor C408. As a result, the comparator output IC402 (4) generates a single pulse.

Resistor R402 determines the discharge time of capacitor C408, so that the time constant may be adjusted to provide single pulse even if chattering occurs. The stop signal input and diode D426 applies a high potential of +5V while the tape is not running, being designed to keep the output of comparator IC 402 (4) at low potential.

Page 14

LIST OF ADJUSTING & CHECKING ITEMS IN AMPLIFIER BLOCK

ltem	Tape used	Measuring point	Input termin a i	Frequency	input level	BIAS switch	EQ switch	DOLBY switch	Adjusting point	Standard value
Azimuth Adjustment	MTT-114	Playback output					NORMAL	OFF	Azimuth adj, screw	MAX. Out- put
Playback output adjustment	MTT-150 (DOLBY tape)	Playback output Level Meter					NORMAL	OFF	SVR703 SVR803 SVR704 SVR804	1.1V +3VU
Checking of playback freq. charac.	TMT-6161 TMT-6165	Playback Output		40Hz 1kHz 12.5kHz			NORMAL Cr02 or Metal	OFF	Head azimuth etc.	-3 ~+3d₿
Level meter adjustment	AC211	Playback output Level meter	Rec. input	1 kHz	—25dB	NORMAL	NORMAL	OFF	SVR707 SVR807	0.775V OVU
Checking of peak level indicator lighting	AC211	Peak level LED (+7dB)	Rec. input	1kHz	–25dB ↓ –18dB±1dB			OFF		Checking of lighting
R/P freq. charac. adjustment	AC511	Playback output	Rec. input	40Hz 1kHz 12.5kHz	—50dB	Cr02	Cr02	OFF	SVR701 SVR801 SVR702 SVR802	±0~+1dB
Record gain adjustment	Metal (make of 3M)	Playback output	Rec. input	1 kHz	—25dB	METAL	METAL	OFF	SVR705 SVR805 SVR706 SVR806	0.775V
Checking of DOLBY effect	AC211	Playback output	Rec. input	5kHz	52dB	NORMAL	NORMAL			0dB ∳ +8dB ±1.5dB

PARTS LOACATION

Page 15

ADJUSTMENT AND CHECKING OF AMPLIFIER BLOCK.

When adjusting or checking, set the OUTPUT LEVEL control knob to the maximum position. Also adjust and check in the reverse direction at the same time.

1. ADJUSTMENT OF HEAD AZIMUTH
- a. Connect VTVM to playback output terminals.
- b. Load with test tape (MTT-114, etc.), and set EQ switch to NORMAL position, and DOLBY switch to OFF position, then press play button.
- c. Turn the screw for azimuth adjustment of the head until the playback output reaches the maximum level.

Fig. 19
2. ADJUSTMENT OF PLAYBACK OUTPUT
- a. Load with test tape (MTT-150, Dolby tape), and set EQ switch to NORMAL position, and DOLBY switch to OFF position, then press play button.
- b. Adjust SVR 703, 803, 704, 804 until the playback output becomes 1. 1 V. At this time, make sure the level meter reads +3 VU.

3. CHECKING OF PLAYBACK FREQUENCY CHARACTERISTICS
- a. Load with test tape (TMT-6161, etc. at NORMAL/TMT-6165, etc. at CrO2 and METAL), and set EQ switch to NORMAL/CrO2 and METAL position, and DOLBY switch to OFF position, then press play button.
- b. With playback output at 1 kHz taken as 0 dB, make sure the playback output at 12.5 kHz is within -3 to +3 dB.
- c. If the requirement above is not satisfied, repeat adjustment of head azimuth 1. above and other adjustment as required.

Load with test tape (AC 211, etc.), and set BIAS, EQ switches to NORMAL, and DOLBY switch to OFF, and input selector switch to record input side.
b. Feed input signal -25dB (1kHz) to record input terminal, and set the unit in record-pause state.
c. Turn INPUT LEVEL control knob until the monitor output becomes 0.775V.
d. Adjust SVR 707 and 807 until the level meter reads 0 VU.

5. CHECKING OF PEAK LEVEL INDICATOR LIGHTING

After the adjustment of item 4. raise input to -18dB, and make sure the peak level indicator lights up within the range of ±1dB with respect to this input level. ADJUSTMENT OF RECORD/PLAYBACK

6. ADJOSTMENT OF RECORD/PLAYBA
- a. Load with test tape (AC 511, etc.), and set BIAS, EQ switches to CrO2' DOLBY switch to OFF, and input selector switch to record input side, then set INPUT LEVEL control knob to the same position as in step c in item 4.
- Feed input signal –50dB (1kHz, 12.5 kHz) to record input terminal, and record this signal.
- c. Play back this signal. Taking the frequency characteristic as 0 dB at 1 kHz, adjust SVR 701, 801, 702, 802 until the output at 12.5 kHz becomes within the range of ±0 to +1 dB. Then, the bias value at each position of NORMAL/Fe-Cr/ METAL can be adjusted to proper value at the

Page 16

ADJUSTMENT AND CHECKING OF AMPLIFIER BLOCK

7. ADJUSTMENT OF RECORD GAIN

a. Load with metal tape (make of 3M, etc.), and set BIAS, EQ switches to METAL, DOLBY switch to OFF, and input selector switch to record input side, then set INPUT LEVEL control knob to the same position as in step c in item 4.
b. Record signal of -25dB (1 kHz.)
c. Adjust SVR 705, 805, 706, 806 so that the playback output of the signal above may be 0.775V with respect to the monitor output (0.775 V) at this time.
8. CHECKING OF DOLBY EFFECT
- a. Load with test tape (AC 211, etc.), and set BIAS, EQ switches to NORMAL, input selector switch to record input side, and INPUT LEVEL control knob to the same position as in step c in item 4.
- b. Turn on DOLBY switch, and record signal of -52dB (5 kHz).
- c. Play back this signal. Traking the output at this time as 0dB, make sure the change when DOLBY switch is turned from ON to OFF is within +8dB ±1.5dB.

ADJUSTMENT OF MECHANISM_

1. MEASUREMENT OF TORQUE TENSION (Fig. 26)
- a. Before measurement, make sure all parts are normally working by checking visually. Especially, make sure the pinch roller is clean.
- b. Set the torque meter as shown on the mechanism. Each item of measurement can be checked at a glance.
- c. Connect a tension gauge to the tape as shown, and tie the other end to the reel hub. Then measure.

Item	Take-up torque	Back tension	Pinch pressure
Gauge used	Cassette torque meter	Cassette torque meter	Tension gauge,
Play	35 — 60 gr-cm	1.5 – 6 gr-cm	350 ±50 gr.
Fast-forwarding	70 — 130 gr-cm	1.5 — 6 gr-cm
Rewinding	70 – 130 grcm	1.5 – 6 gr-cm

2. ADJUSTMENT OF TAPE SPEED (MOTOR SPEED)

a. Connect counter to playback output terminal (provided at the back of the set), and load with test tape (MTT-111). Play back.
b. Turn smifixed variable resistor for adjusting tape speed by using a screwdriver (about 2 mm wide) as shown in the sketch until the counter reads within 2980 to 3000 Hz. (Fig. 27)

Page 17

INPUT O------

LM1011 (DOLBY B-TYPE NOISE REDUCTION PROCESSOR)

LA3160 (2 CHANNEL PREAMPLIFIER)

NJM4558. RC4558 (DUAL HIGH-PERFORMANCE OPERATIONAL AMPLIFIERS)

TC4001 (QUAD 2-INPUT POSITIVE NOR GATE) 1/4 LOGIC DIAGRAM

4-INB 4-OUT x 3-INA VDD 4-INA 3-OUT x 3-INB 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 13 12 11 10 9 8 14 12 12 11 10 9 8 14 12 12 11 10 9 8 14 12

NTH	VALUE TABLE

INF	PUT	OUTPUT
A	в	X
L	L	н
L	н	L
н	L	L
н	н	L

TC4011 (QUAD 2-INPUT POSITIVE NAND GATE) 1/4 LOGIC DIAGRAM

•	D	^
L	L	н
L	н	н
н	L	н
н	н	L

Page 18

Page 19

Page 20

PARTS LIST _____

Ref.No.	Part No.	Description	Q'ty	Ref. No.	Part No.	Description	Qʻty
PACKING	G & ACCESSORIES			CABINE	F & CHASSIS
	141-6-133T-09500 141-6-144T-59700 141-6-144T-59800 141-6-144T-59800	Individual Carton Pad, Left Pad, Right	1	57 58 59	141-2-374T-15100 141-2-373T-07200 141-2-153T-56100	Bracket Pilot Bracket Meter Escutcheon	1 2
	141-6-231T-55702 141-6-231T-25350	Polyethylene Bag, Set Polyethylene Bag, Instruction Manual	1	60 61 62 63	141-2-2411-34200 141-2-241T-23200 141-2-464T-20671 141-2-464T-33700	Veil Veil, Fiber Fixer, Lead mtg. Fixer, Lead mtg.	2 4 9 1
	141-6-231T-10200 141-6-331T-05500 141-6-493T-01100	Polyethylene Bag, Power Cord Protector Sheet, 500 x 250 mm Customer Card	1 2 1	64 65 66	141-2-472T-01201 141-0-156T-21701 141-2-161T-71000	Lug, Lead mtg. Cup Knob Assembly, POWER Push Button, EJECT	2
				68 69	141-2-2531-20400 141-2-855T-50200 141-2-161T-71400	Spring Coil, Joint Push Button, OPERATION	1
CABINE				70	141-2-156T-24600	MODE Knob, Counter	3 1
234	141-0-1221-32201 141-2-753T-84700 141-2-161T-71100 141-2-161T-71200	Pront Panel Assembly Shaft, Push Button Push Button, REC Push Button, F.FWD, REW, PAUSE, REC MUTE Push Button PLAY STOP	1 1 4 3	71 72 73 74 75 76	141-0-8111-07900 141-0-812T-09200 141-2-661T-30900 141-2-453T-30100 141-2-457T-23800 141-2-554T-23800	Counter Assembly Bracket Counter Assembly Pulley Washer, 2.1 x 4 x 0.13 mm Special Washer, 1.5 mm	1 1 2 2 2
6 8 9	141-2-310T-34800 141-2-111T-42600 141-2-124T-26700	Bracket, Push Button Cabinet Top Litl, Cassette Compartment	3 4 1	70 77 78	141-2-457T-23000 141-2-457T-23100	Special Washer, 2 mm, "E" Rir Special Washer, 3 mm, "E" Rir	ng 2 ng 5
10 11	141-2-421T-29900 141-0-163T-59800	Special Screw, Top Lid mtg. Rotary Knob Assembly,	2		RE	T : 0 D !!!	r
12	141-0-163T-59900	Rotary Knob Assembly, INPUT LEVEL (R)	1	Y 2		2.6 x 4 mm External Tooth Lock	5
13	141-0-163T-60000	Rotary Knob Assembly, OUTPUT LEVEL	1	Y 3		Washer, 3 mm Tapping Screw, Bind Hd.,	1
	141-2-464T-20671 141-6-472T-14900	EQ, DOLBY NR Fixer, Lead mtg. Caution Label, WARNING	4 1 2	Y 4 Y 5		Tapping Screw, Pan Hd., with Washer, 3 x 8 mm Screw, Pan Hd., with Spring	8
	141-6-479T-39800 141-2-453T-30300	Label, SIMULATED WOOD GRAIN FINISH Washer, 3.1 x 5.4 x 0.13mm,	1	Y 6 Y 7		Washer, 3 x 6 mm Screw, Pan Hd., 3 x 8 mm Nut, 3 mm	4 2 2
21 22	141-2-365T-50800 141-2-310T-36800	Push Button/Push Button Bracket Switch Bracket	5 1 1	Y 8 Y 9		Screw, Bind Hd., 3 x 8 mm Tapping Screw, Bind Hd., 3 x 8 mm	2
23 24 25 26	141-0-2211-08900 141-0-126T-32401 141-2-114T-02330	Bracket Panel Assembly Back Lid Assembly Frame, LINE IN/LINE OUT		Y10 Y11		Washer, 3 mm Tapping Screw, Pan Hd. with Washer, 3 x 10 mm	2 25
27	141-2-125T 19101	Rubber Cushion, Power Cord mtg. Rutton Lid		Y12		Tapping Screw, Pan Hd. with washer, 3 x 12 mm Tapping Screw, Pan Hd. with	2
29	141-0-174T-05101	Stand Assembly, Buttom Lid	2	Y14		Tapping Screw, Pan Hd., 3 x 10 mm	2
31 32 32	141-2-2101-08900 141-2-210T-19600 141-2-377T-25400	Bracket, Bottom Lid mtg. Bracket, Buttom Lid mtg. Bracket P.C.B.	3 2 2	Y15 Y17		Vasher, 3 x 6 mm Screw, Pan Hd. with Spring	2
33 34 35 36	141-2-3311-30900 141-2-742T-47000 141-2-742T-47100 141-2-753T-81800	Lever Shaft		Y18		Washer, 2 x 8 mm Screw, Pan Hd. with Washer & Spring Washer, 3 x 6 mm	2
37 38 39	141-2-855T-49900 141-2-855T-50000 141-2-581T-17300	Spring Coil Spring Coil Gear		Y20		Fapping Screw, Pan Hd., 2.3 x 6 mm Forming Screw, Pan Hd., 3 x 4	\| 4 mm 1
40 41 42	141-2-855T-50100 141-2-340T-00200 141-2-464T-33900	Spring Coil Rope, 0.5¢ x 180 mm Fixer		Y22		Tapping Screw, Pan Hd., 2.3 x 8 mm Tapping Screw, Bind Hd., 3 x 12 mm	1
43 44 45	141-2-464T-34000 141-2-153T-55600 141-2-153T-55700	Fixer Escutcheon, Left Escutcheon, Right		Y23 Y24 Y25		Washer, 4 x 10 x 1 mm Spring Washer, 4 mm Washer, 4 x 13 x 1.2 mm	228
40 47 48	141-2-2101-17900 141-2-210T-18000 141-0-351T-51000	Bracket, Left Bracket, Right Bracket Mounting Assembly, Left		Y26 Y29 Y30 Y31		Nut, 4 mm Screw, Pan Hd., 3 x 12 mm Screw, Bind Hd., 4 x 10 mm	222
49	141-0-351T-51100	Bracket Mounting Assembly, Right	1
50 51 52 53 54 55	141-0-742T-46900 141-0-742T-46800 141-0-747T-19600 141-0-747T-19500 141-2-855T-50300 141-2-447T-40304	Lever Assembly Lever Assembly Bracket Lever Assembly Bracket Lever Assembly Spring Coil Cushion	2 1 2 2 1
56	141-0-853T-66400	Spring Plate Assembly

Page 21

PARTS LIST _____

Ref. No.	Part No.	Description	Q'ty	Ref. No.	Part No.	Description	Qʻty
ELECTRI	CAL PARTS			MAIN P.C	.B. ASS'Y
101 102(S901) 103 104 105(VR701	4-300T-13900 4-238T-12771 4-235T-44871 4-243T-81271 4-222T-71200	Power Transformer Switch, Power Socket, Phones Power Cord Variable Resistor, INPUT	1 1 1 1	SVR707, 807 VR702, 802	4-222T-71176 4-222T-71500	Semi-fixed Resistor, 20K ohm, Meter Variable Resistor, 10K ohm, OUTPUT LEVEL	2
801) 106 107 108(PL3)	4-231T-84200 4-511T-11500 4-612T-11179	LEVEL Switch, Eject Meter, LEVEL Pilot Lamp, Cassette	1 2 1		RESISTORS All Resistors are Car otherwise noted.	bon P-type ¼W, ±5% unless
109 110 110	123-2-472R-11100 123-2-472R-00401	Lug, Ground, Volume Lug, Ground	1 3	R501,551 506,556,		1M ohm	6
112	4-2351-78900 141-0-863T-00500 4-243T-13302	Mirror Assembly Lead Cord Assembly, LINE IN/LINE OUT	, 1 1	962,963 R502,552 505,555, 719,819, 735,835,		150K ohm	10
MAIN P.C	.B. ASS'Y			736,836 R503,553		68K ohm	2
151 IC501,551 IC701	141-4-233T-34571	P.C.B. Assembly, Main Integrated Circuit, LM1011N Integrated Circuit, LA3160F	1 2 1	R504,554, 725,825, 709,809, 734,834,		100K ohm	10
IC702 Q501,551 502,552, 701,801, 702,802,		Integrated Circuit, RC4558P Transistor, 2SC2320	1 36	751,851 R507,557 R508,558, 748,848, 754,854,		180 ohm 3.3K ohm	2 7
703,803, 704,804, 705,805, 708,808,				956 R509,559 R511,561, 512,562		47K ohm 270K ohm	2 4
709,809, 711,811,				R513,563 712,812		560K ohm	4
712,812, 713,813, 714,814, 715,815,				R701,801, 723,823, 749,849, 969,977		22K ohm	8
716,816, 719,819, 952,953. 956,957 Q706,806 Q707,807,		Transistor, 2SA999 Transistor, 2SC2320	2 2	R702,802, 705,805, 722,822, 731,831, 764,864, 957,970,		10K ohm	16
Q717,817 Q951 Q945,955 D701,801 702 802		Transistor, 2SA999 Transistor, 2SC945 Transistor, 2SD438 Diode, 1N60FM	2 1 2 4	972,976 743,843 R703,803, 768,868, 955		1K ohm	5
D703,803, 952		Diode, 1S2473	3	R704,804 R706,806,		82K ohm 4.7K ohm	2 12
957 0958 1501,551	4-255T-01671	Diode, XZ086 MX Coil, 85kHz Choke Coil, 5 6mH	1 2 2	707,807, 715,815, 746,846, 756,856,
L702,802 L703,803	4-253T-01007 4-253T-01019 4-252T-07400	Choke Coil, 3.0mH Choke Coil, 4.7mH Choke Coil, 36mH	2 2	737,837		390K ohm	4
S1	4-2581-26600 4-264T-08900 4-238T-11800	Magnetic Coil, FWD/REV		R713,811 R713,813,		1.8K ohm	3
$2 $3	4-232T-05900 4-231T-42100	Relay, REC/PLAY Switch, INPUT SELECT (MIC/LINE)	1	R714,814, 752,852, 763,863		2.2K ohm	6
S4 S5 S6 S7	4-231T-85600 4-231T-85500 4-231T-85500 4-238T-07000 4-235T-58800 4-235T-55871 4-235T-78600	Switch, EQ Switch, DOLBY NR Switch, BIAS Lever Switch, TIMER Socket, MIC Socket, LINE IN/LINE OUT Socket 6P Power	1 1 1 2 1	R716,816 R717,817 R718,818 R721,821 R724,824 R726,826,		1.5K ohm 6.8K ohm 120K ohm 150 ohm 5.6K ohm 220K ohm	2 2 2 2 2 2 4
CN302 CN405	4-235T-78700 4-235T-78700 4-235T-78800 4-236T-10271 4-236T-10272	Socket, 31P, Logic Socket, 3P, Logic Plug, 4P	1 1 2 1	767,867 R727,827, 753,853, 762,862		33K ohm	6
SVR701, 801,702,	4-222T-71179	Semi-fixed Resistor, 200K ohm BIAS	4	н/28,828, R741,841 R729,829, 738,838		5.6K onm 5.6K ohm 100 ohm	224
802 SVR703, 803,704, 804,705	4-222T-71175	Semi-fixed Resistor, 10K ohme, PLAY/REC	8	R732,832 R739,839 R740,840		3.9K ohm 180K ohm 27K ohm	2 2 3
805,706, 806				R760,860		27 ohm	2

Page 22

PARTS LIST_____

Ref. No.	Part No.	Description	Q'ty	Ref. No.	Part No.	Description	Q'ty
MAIN P.C	.B. Ass'y ASS'Y			MAIN P.C	.B. ASS'Y
	RESISTORS All Resistors are Carl otherwise noted.	bon P-type ¼W, ±5% unless		C733,833	CAPACITORS	Mylar, 0.018µF, ±10%, 50∨	2
R742,842 761,861 B744,844		8.2K ohm	4	C734,834 C735,835 C736,836 C737,837		Mylar, 0.0018µF, ±10%, 50∨ Mylar, 0.012µF, ±10%, 50∨ Mylar, 0.018µF, ±5%, 50∨ Mylar, 0.022µF, ±5%, 50∨	2 2 2 2
745,845 R747,847, 755,855,		15K ohm	5	C738,838 C739,839 C740,840		Mylar, 0.0039µF, ±10%, 50V1 Mylar, 0.015µF, ±5%, 50V Ceramic, 100pF, ±10%, 50V	2 2
964 R757,857 R759,859, 770,870		2.7K ohm 1.2K ohm	2 4	C741,841 C742,842 C743,843 C745,845		Grannic, 470pF, ±20%, 50V Mylar, 0.001μF, ±10%, 50V Electrolytic, 1μF, 25V Electrolytic, 2.2μF, 25V	2222
R769,869, 771,871		18K ohm	4	C746,846 C900		Electrolytic, 1μF, 25V Mylar, 0.01μF, ±10%, 50V	2
R951,953, 954 R952 R958 R959,961		220 ohm 120 ohm 220 ohm, ±10%, ½W, Solid 390 ohm	3 1 1 2	C952 C953 C954 C956 C957		Electrolytic, 47µF, 16V Electrolytic, 100µF, 16V Electrolytic, 100µF, 10V Electrolytic, 220µF, 10V Electrolytic, 3.3µF, 25V	1 1 1 1
R967,968 R971 R973 R974 R975 R979		270 ohm 10 ohm 150 ohm, 1W, Metal Oxide 270 ohm, ±10%, ½W, Solid 27 ohm, 1W, Metal Oxide 1K ohm, ½W, Solid	2 1 1 1 1	C958,961 C959 C960 C962,963 C965,966		Mylar, 0.01µF, ±5%, 50V Mylar, 0.0047µF, ±5%, 50V Electrolytic, 33µF, 16V Mylar, 0.0015µF, ±5%, 50V Mylar, 0.0082µF, ±10%, 50V	2 1 1 2 2
	CAPACITORS			MECHAN	ISM CONTROL P.C	S.B. ASS'Y
C501,551		Electrolytic, 2.2µF, 25V	4	152	141-4-233T-34600	P.C.B. Assembly, Mechanism Control	1
C502,552 700,800		Ceramic, 220pF, ±20%, 50V	4	IC301,302		Integrated Circuit, TC4011BP TC4011BN	or \| 2
C504,554 C505,555 506,556		Ceramic, 100pF, ±10%, 50V Electrolytic, 4.7µF, 25V	2 29	1C303,305 1C304,308		Integrated Circuit, TC4081BP TC4081BN Integrated Circuit, TC4001BP	or \| 2 \| 2
705,805, 707,807,				IC306,309		Integrated Circuit, TC4011BP TC4011BN Integrated Circuit TC4049BP	or 2
709,809, 722,822, 723,823, 724,824, 725,825, 726,826				IC311 O301,302 303,305, 307,308, 309,310, 311		Integrated Circuit, AN6251 Transistor, 2SC536	19
727,827, 729,829,				0312,313, 314,315		Transistor, 2SA608	4
964 C511,561 C512,562 C513,563, 515,565, 517,567, 703,803, 714,814, 721,921		Mylar, 0.0056μF, ±5%, 50∨ Mylar, 0.0047μF, ±5%, 50∨ Electrolytic, 10μF, 16∨	2 2 12	D301,302, 303,304, 305,306, 307,308, 309,314, 315,316, 317,318, 321,322, 325,327		Diode, 1S2473 or DS442X	24
C514,564 C516,566 C518,568 C519,569 C521,571,		Mylar, 0.027μF, 50V ±5% Mylar, 0.047μF, ±5%, 50V Electrolytic, 0.1μF, 16V Electrolytic, 0.33μF, 16V Electrolytic, 220μF, 16V	2 2 2 2 4	328,329, 330,331, 332,333 D319,320 334,335, 336,337		Diode, DS442X	11
C701,801 C704,804, 710,810		Ceramic, 470pF, ±20%, 50V Ceramic, 0.001µF, ±20%, 50V	2 4	338,339, 340,344, 345
C706,806 C708,808,		Electrolytic, 47µF, 6.3V Electrolytic, 1µF, 25V	24	D341,342, 343	4 0057 05000	Diode, 1N60FM	3
711,811 C712,812 C713,813 C715,815 C716,816 C717,817, 730,830		Electrolytic, 33μF, 16V Ceramic, 560pF, ±10%, 50V Ceramic, 560pF, ±20%, 50V Ceramic, 47pF, ±10%, 50V Electrolytic, 47μF, 10V	2 2 2 2 4	CNS301 CNP302 CNP303 CNP304 CNP305 CNP306 BA301	4-236T-185000 4-236T-10278 4-236T-10200 4-236T-10274 4-236T-10274 4-236T-10276 4-236T-10276 4-221T-04300	Socket, IUP Plug, 11P Plug, 3P Plug, 7P Plug, 2P Plug, 9P Resistor, 10K ohm x 7	1 1 1 1 1
C718,818 C719,819 C728,828 C731,831 C732,832		Electrolytic, 220µF, 10V Mylar, 0.018µF, ±5%, 50V Ceramic, 330pF, ±20%, 50V Electrolytic, 0.47µF, 16V Mylar, 0.056µF, ±10%, 50V	2 2 2 2 2 2		RESISTORS All Resistors are Car otherwise noted.	bon P-type ¼W, ±5% unless	•

Page 23

PARTS LIST _____

Ref.No.	Part No.	Description	Qʻty	Ref.No.	Part No.	Description	Q'ty
MECHAN	IISM CONTROL P	.C.B. ASS'Y		MECHAN	ISM DRIVER P.C.E	3. ASS'Y
•••••, ••• •••••••••••••••••••••••••••	RESISTORS			153	141-4-233T-34771	P.C.B. Assembly,
	otherwise noted.	arbon P-type 4W, ±5% unless		IC401		Integrated Circuit, TC4030BP
D011 000		10%	-	IC402		Integrated Circuit, LM324N or	1
359,368,			5	Q401		LM324 Transistor, 2SC945	1
369				Q402,403,		Transistor, 2SC536	5
324.326.		33K ONM	8	404,405,
330,357,				Q407		Transistor, 2SB596	1
358,385 B016 017		100K ohm	11	Q408,410,		Transistor, 2SC945	5
302,303,				417
328,334,				Q409,412		Transistor, 2SB560	2
362,363,				2411,420		2SD734	2
367		18K obm		Q414,416		Transistor, 2SD880	2
020,021			4	424		Transistor, 25D438	3
R022,023,		47K ohm	6	Q419,421,		Transistor, 2SC945	4
344.345				423,425 Q426,427		Transistor 2SC536	3
R026,027,		180 ohm	4	428
028,029 R032 033		100 ohm	4	0429,430		Transistor, 2SC536	2
335,383				D401,402		Diode, DS442X	21
H301,305, 325,329		4.7K ohm	13	404,405,
332,337,				408,409,
346,349,				410,411,
352,360,				414,422,
364				423,424,
R306,372 R307.309.		270K ohm	4	425,426,
311,313				432
R308,310 312,314		5.6K ohm	12	D415,416,		Doide, SR1K2	3
316,317,				D430,433		Doide, 1N60FM	2
318,320, 373,376				D981		Diode, XZ057	1
378,380				CNP301,40	4 4-236T-10277	Plug 10P	2
R319,321,		330K ohm	3	CNP402	4-236T-10271	Plug, 4P	1
R323,327		220K ohm	2	CNP403	4-236T-10274 4-236T-10500	Plug, 3P
R331		1.2M ohm	1	CNP406,40	7 4-236T-10200	Plug, 3P	2
R342,343,		3.3K ohm	6	RA401	4-2211-015/1	Resistor, 100K ohm x 7	\| 1
353,354,			-		RESISTORS
355,356 R348		270 ohm	1		All Resistors are Car	bon P-type ¼W, ±5% unless
R365,366		3.9Kohm	2			l
H371 R374 381		68K ohm 150K ohm	1	R401,403		330K ohm	3
R377		1.2M ohm	1	R402,406,		5.6K ohm	3
R379 R382		470K ohm 1 5K ohm	1	404 B405 490		220K obm	1
1.002			\| ' \|	R407,411,		33K ohm	11
	CARACITORS			412,415,
	CAFACITORS			434,466,
C301,329		Electrolytic, 4.7µF, 25V	2	435,443,
306,307,		Electrolytic, 0.47µF, 10V	1	8408.413.		3.3K ohm	5
315,316,				417,484,
C303,304,		Electrolytic, 0.47µF, 25V	4	497 R409.414		68K ohm	2
314,318				R416,418,		4.7K ohm	4
312		Electrolytic, IµF, 10V	3	485,486 R419,467		56K ohm	3
C310,311,		Electrolytic, 1µF, 25V	3	482
313 C320.327		Electrolytic, 10µF, 16V	2	H420,421, 460 488		22K ohm	4
C321,322		Electrolytic, 220µF, 10V	2	R422,423,		220 ohm	3
C323,330 C324,325		Electrolytic, 33µF, 10V Ceramic, 0.01µF +80-20% 50V	2	439 B424		56 ohm +1.0% 1/W Sound	1
C328		Ceramic, 0.047µF, ±20%,	1	R425		39 ohm ±10%, 2W, Metal	1
C331		50V, BCtype	v 1	R426,459		100K ohm	2
				R431,441,		47K ohm	3
				436
	1		1	i i m432.4/3 \|			1 2

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PARTS LIST _____

Ref. No.	Part No.	Description	Q'ty	Ref. No.	Part No.	Description	Q'ty
MECHAN	ISM DRIVER P.C.B	. ASS'Y		POWER P	.C.B. ASS'Y
	RESISTORS All Resistors are Carl otherwise noted.	oon P-type ¼W, ±5% unless		R902 R903 R904 B905		47 ohm 150 ohm 22 ohm 100 ohm ±5% Elame Proof	1 1 1
R438,442, 470,472 R445,446		2.2K ohm 180 ohm, ±10%, ½W, Solid	4 2	R906 R907		Carbon 1K ohm, ½W. Solid 18 ohm, ±5%, Flame Proof	1 1
R449 R451,461, 474,475, 985 R455 R456		330 ohm 1K ohm 120K ohm 18K ohm	1 5 1	R908 R909 R910 R911 R912		Carbon 39 ohm ±5%, 1W, Metal 2.7K ohm, ½W, Solid 47 ohm 270 ohm, ±5%, 1W, Metal 2.7K ohm ½W, Solid	1 1 1 1
R457,458, 465,469, 477,480, 487,492 R462		10K ohm 1M ohm	8	R915 R916 R917 R918		82 ohm 10 ohm 3.9 ohm, ±5%,1W, Metal 15K ohm	1 1 1 1
R463,476 R464 R468,481 R471 R479		560K ohm 820K ohm 180K ohm 150 ohm 270K ohm	2 1 2 1	C900 C902	CAPACITORS	Electrolytic, 2200µF, 16V Ceramic, 0.01µF, +80 – 20% 50V	1
R483 R490 R493,495 R981 R982 R983 R984		560 ohm 22 ohm 8.2K ohm 18 ohm Flame Proof Carbon 680 ohm 22 ohm 390 ohm	1 1 2 1 1 1 1	C903 C904 C905 C906 C907 C908 C909 C910		Electrolytic, 1000µF, 50V Electrolytic, 330µF, 16V Electrolytic, 330µF, 16V Electrolytic, 1000µF, 35V Electrolytic, 100µF, 25V Electrolytic, 330µF, 25V Electrolytic, 330µF, 50V Electrolytic, 330µF, 50V	1 1 1 1 1 1 1
C401,402,	CAPACITORS	Electrolytic, 1µF, 25V	4				2
403,408 C404,414, 415		Electrolytic, 10µF, 10V	3	155	141-4-233T-34900	P.C.B. Assembly, Mechanism	1
C405 C406,411 409,413, 417		Electrolytic, 47µF, 10V Electrolytic, 2.2µF, 25V	1 5		4-238T-11700	Switch Switch, REW/F.FWD/STOP/ REV/FWD/PAUSE/ RECORDE/REC MUTE	8
C410 C412 C416,985		Electrolytic, 10µF, 16V Electrolytic, 22µF, 10V Electrolytic, 100µF, 10V	1 1 2 2
C418,982		25V, BCtype Electrolytic, 220μF, 25V	1	156	141-4-233T-35000	P.C.B. Assembly, Operation	1
C983 C984		Electrolytic, 4.7µF, 25V Electrolytic, 220µF, 10V	1	CN304	4-238T-11900 4-235T-78400	Mode Switch Switch, Operation Mode Socket, 7P	1
POWER P	.C.B. ASS'Y		1	PEAK LE	VEL LED P.C.B. AS	SS'Y	_
Q900,903 Q901	141-4-2331-34671	Transistor, 2SD545	2	157	141-4-233T-35100	P.C.B. Assembly, Peak Leved	1
Q904 Q905 D901,902,		Transistor, 258632 Transistor, 25D325 Diode, SR1K2	1	D953		Diode, PR2434D Y, LED, Red
903,904, 905,906,				DOLBY/N	METAL LED P.C.B.	ASS'Y
907,908, 909,910, 911,912, 913,914, 915,916				D954,955	4-235T-79000	P.C.B. Assembly, Doldy/Metal LED Diode, SLP254B, LED' Green Socket, 4P	2
D919 D922		Diode, XZ086 Diode, XZ215	1	FWD/RE	V LED P.C.B. ASS'Y	,	-
D925,926	141-2-327T-18200 141-2-243T-09800 141-2-368T-19200 4-236T-10273	Diode, W2120 Diode, DS446 Insulator, Transistor mtg. Base, Transistor mtg. Heat Sink Plug 6P	2 2 2 1	159 D401,402 CN402	141-4-233T-35300 4-235T-78300	P.C.B. Assembly, FWD/REV L Diode, SLP239B, LED, Green Socket, 4P	ED 1 2 1
	RESISTORS			REC LED	P.C.B. ASS'Y
R900 R901	All Resistors are Car otherwise noted.	bon P-type ¼W, ±10% unless 5.6 ohm ±5%, 2W, Metal 330 ohm, ±10% ¼W Solid	1	160 D350 CN305	141-4-233T-35400 4-235T-79100	P.C.B. Assembly, REC LED Diode, SLP154B, LED, Red Socket, 2P	\| 1 \| 1 \| 1

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PARTS LIST_

Ref. No.	Part No.	Description	Q'ty	Ref. No.	Part No.	Description
MECHANISM (TM-600)				MECHANISM (TM-600)
MECHANI 1 2 3 4 5 6 7 8 9 10 11 12 13 14 5 6 7 8 9 10 11 12 13 14 15 16 17 18 9 20 21 22 23 24 25 26 27 28 29 30 31 22 23 24 25 26 27 28 29 30 31 32 33 45 56 57 58 59 60 1 52 53 54 55 55 55 55 55 55 55 55 55	SM (TM-600) 141-0-311T-35000 141-2-464T-35700 141-2-452T-63900 141-2-852T-63900 141-2-315T-22200 141-2-315T-22200 141-2-315T-22300 141-0-531T-13210 141-0-531T-13210 141-0-531T-13210 141-0-531T-13210 141-2-455T-58200 141-2-455T-58200 141-2-455T-58300 141-2-455T-58300 141-2-742T-52100 141-2-742T-52100 141-2-742T-52100 141-2-742T-52100 141-2-742T-52100 141-2-855T-58300 141-0-731T-82400 4-242T-24800 141-2-855T-58300 141-2-375T-07900 141-2-375T-07900 141-2-375T-07900 141-2-855T-58400 141-2-855T-58400 141-2-855T-58400 141-2-855T-58400 141-2-855T-58600 141-2-855T-58600 141-2-855T-58600 141-2-855T-58600 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-742T-52300 141-2-731T-82600 141-2-731T-82600 141-2-731T-82600 141-2-731T-82600 141-2-731T-82700 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82800 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141-2-731T-82900 141	Chassis Assembly Fixer Lug Slide Spring Wire Rubber Cushion Reinforcement, Lower Reinforcement, Upper Reel Plate Assembly, Right Reel Plate Assembly, Left Spring Coil Washer, 6.2 x 9.5 x 0.13 mm Stopper Lever Pinch Roller Assembly Special Washer, 2.5 mm Lever, Pinch Roller, Left Spring Coil Slide Assembly, Head R/PHead, Spring Coil, Azimuth Rubber Cushion Special Washer Magnetic Head, Erase, FWD Magnetic Head, Erase, REV Bracket Head, Erase, REV Bracket Head, Erase, REV Bracket Head, Erase Bracket Head, Erase Bracket Head, Erase Bracket Head, Erase Bracket Head, Erase Bracket Head, Brase Bracket Head, Erase Bracket Head, Erase Bracket Head, Erase Bracket Head, Erase Bracket Head, Brase Bracket Head, Erase Bracket Head, Brase Bracket Head, Erase Bracket Head, Brase Bracket Head, Brase Bracket Head, Brase Bracket Head, Brase Bracket Head, Brase Bracket Head, Brase Bracket Head, Brase Bracket Head, Brase Bracket Head, Brase Bracket Head, Brase Bracket Head, Brase Brase Bracket Lever, Left Stell Ball, 2 mm Spring Coil Socket, 6P, R/P Socket, 4P, E Fixer Lever, REC Sensor, Left Bracket Lever, Left Slide, REC, Right Slide, REC, Right Slide, REC, Right Slide, REC, Right Slide, REC, Right Slide, REC, Right Slide, REC, Right Slide, REC, Right Slide, REC, Right Slide, REC, Right Slide, REV Assembly, Drive Arm Spring Coil Lever Assembly, Drive Arm Spring Coil Special Washer, 3 mm Slide, REV Rubber Cushion Lever Assembly, FWD Pipe Spring Wire Slide, REV Rubber Cushion Lever Assembly, FWD Pipe Spring Wire Lever Assembly, REV Spring Wire Slide, REV Rubber Cushion Lever Assembly, FWD Pipe Spring Wire Lever Assembly, REV Spring Wire Lever Assembly, REV Spring Wire Lever Assembly, REV Spring Wire Spring Wire Lever Assembly, REV Spring Wire Spring Wire Lever Assembly, REV Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wire Spring Wi	122114111122222811211111111111111111111	MECHAN 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 (D601, 602,601 104 105 106 107 108 109 110 111 112 HARDEA Y01 Y02 Y03 Y04 Y05 Y06 Y07 Y08 Y09 Y10 Y11 Y12 Y13 Y14 Y17 Y16 Y17	ISM (TM-600) 141-2-312T-17900 141-2-447T-43100 141-2-472T-09900 141-2-490T-08230 141-2-683T-38700 4-527T-15000 141-2-661T-75600 141-2-461T-38400 141-2-461T-38400 141-2-457T-24500 141-2-661T-31500 141-2-651T-18900 141-2-651T-18500 3) 141-2-742T-53100 141-2-742T-53100 141-2-753T-92100 141-2-65T-18500 3) 141-2-742T-53100 141-2-742T-53100 141-2-753T-92000 4-235T-82500 141-2-564T-23100 141-2-561T-04900 ARE	Sub Chassis Cushion, 6 x 10 x 6 mm Lug Tube, 30 mm Bearing Ring Motor, Main Pulley Motor Assembly Motor, Reel Pulley Motor Assembly Pipe, Motor mtg. Bracket Bearing Bearing Axis, Pulley Pulley Shaft Washer, 2.1 x 4 x 0.13 mm Switch Socket, 3P, Sensor REC Magnetic Coil Stopper Diode, SR1K2, Plunger mtg Lever Pin Shaft Special Washer, 2 mm Terminal Board Socket, 7P Square Belt Round Belt Flat Belt Screw, Bind Hd., 2.6 x 8 mm Forming Screw, Pan Hd., 3 x 5 mm Screw, Bind Hd., 2 x 14 mm Nut, 3 mm Screw, Bind Hd., 2 x 14 mm Nut, 3 mm Screw, Bind Hd., 2 x 14 mm Nut, 3 mm Screw, Pan Hd. with Washer, 2 x 5 mm Screw, Pan Hd. with Washer, 2.6 x 6 mm Screw, Pan Hd. with Washer, 2.6 x 4 mm Screw, Pan Hd. with Washer, 2.6 x 4 mm Screw, Pan Hd. with Washer, 2.6 x 4 mm Screw, Pan Hd. with Washer, 2.6 x 5 mm Screw, Pan Hd. with Washer, 2.6 x 5 mm Screw, Pan Hd. with Washer, 2.6 x 5 mm Screw, Pan Hd. with Washer, 2.6 x 5 mm Screw, Pan Hd. with Washer, 2.6 x 4 mm Screw, Pan Hd. with Washer, 2.6 x 5 mm Screw, Pan Hd. with Washer, 2.6 x 4 mm Screw, Pan Hd. with Washer, 2.6 x 5 mm Screw, Pan Hd. with Washer, 2.6 x 5 mm Screw, Pan Hd. with Washer, 2.6 x 6 mm Screw, Pan Hd. with Spring Washer, 3 x 6 mm

Q'ty

1311221111662121221123 3311111111

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