Pioneer CT-91a User manual

)

PIONEER

~The

future

of

|

sound

and

vision

‘

Export

destination

:

ae

gare

A

+

‘ACZOV,

,

AON

Cewitchabe)

:

-

"|,

European

cont

ese

oS

|

acttov,

120V-127v,

220,

240v

(ewitchabe)

pre

Kingdom

of

Saudi

Arabia

and

general

market

“se

Change’

the.

primary

wiring

‘of

the

power

transformer.

.

This.

manual

i

is.

applicable:

to

pe

CT-

SEN.

and

SD

‘types.

.

For.

the

sD

type,

refer

to

pages:

4

ee

e

Ce

manuel

pour

le

service

comprend

le

expitestions.

en

1

frangais

de

réglage.

o

Este

‘manual

de

servicio.

trata

del.

método

ajuste

escrito

en

espafiol.

inne

2.

pine

5.

6.

|

We

a

8.

9.

PIONEER

ELECTRONIC

COR

ORATION.

4-1

wage.

1-

“Chemie,

gire-kn,

Tohgo

t

153,

Japan:

NEER

ELECTRONICS

SERVICE

INC,

P.O.

Box

17

ong

Beach,

California

9080L

USA.

PIONEER

ELECTRONICS

OF

CANADA,

INC.

505

Cochrane

Biv,

Markham,

Ontario

L3R

BES

C

Canada

MOHSEN

ELEC

TNONG

E-USOPEL

IY.

eee

40

Beveren,

Belgium

PIONEER

E

)

AUSTRALIA

P

4

Eaonny

Fe

feed

craesie,

Victoria

3196,

“Australia

TEL:

[03]

580-9911.

-)

PIONEER

ELECTRONIC

CORPORATION

7

TORO

ga

APR

1900

Printed

in,

Japan

1.

SPECIFICATIONS

Systems

sce

es

Meer

eee

sek

re

se

eee ees

4

track,

2-channel

stereo

Heads:

-ssscs

erst

ere

r

cree

er

eces

Recording

and

playback

head

Laser

amorphous

playback

head/

Hard

permalloy

recording

head

combination

x

1

Erasing

head:

(Ferrite

head)

x

1

MOtors

seserrressecerresreerersens

DC

servo

capstan

motor

x

1

DC

reel

motor

x

1

DC

auxiliary

motor

x

1

Wow

&

flutlerss

ssc

reer

crest

eee

ence

tence

neces

0.022%

(WRMS)

+

0.052%

(DIN)

Fast

winding

time

+++

errr

r

eter

eee

Approximately

80

seconds

(C-60

tape)

Frequency

response

(-20

dB

recording)

Metal

tape

corre

eee

er

rece

tree

ee

eeene

ee

15

Hz

to

23,000

Hz

Chrome

tape

-:-

+++

15

Hz

to

21,000

Hz

Normal

tape

ssccsssrser

essere

ee

eeceee

15

Hz

to

21,000

Hz

Signal-to-noise

ratio

DOLBY

NR

OFF

eee

ey

More

than

60

dB

Noise

reduction

effect

DOLBY

B-type

NR

ON

--

More

than

10

dB

(at

5

kHz)

DOLBY

C-type

NR

ON

More

than

19

dB

(at

5

kHz)

Harmonic

distortion

-

--

No

more

than

0.6%

(0

dB)

LINE:

67

mV

(Input

impedance:

50

k

Q

)

(0)

)

eee

LINE:

316

mV

(Output

impedance:

1.4

k

Q)

Headphones:

0.8

mW

(Load

impedance

8

2

VR

Max.)

Subfunctions

3-mode

Counter

(4-digit

electronic

counter)

Auto

Tape

Loose

Canceller

function

Meter

Range

Selection

(wide/expanded

range}

Auto

Monitor

Function

(TAPE/SOURCE

auto

selection)

Power

Eject

(OPEN/CLOSE)

Music

Search

(over

+

15

selections)

Tape

Return/Return

Play

Headphones

jack

(with

volume

control)

Bias

control

Rec

calibration

level

control

MPX

Filter

Auto

Space

Recording

Mute

Auto

Tape

Selector

Playback/Recording

timer

start

function

Dolby

B-type

and

C-type

Noise

Reduction

Systems

Dolby

HX

Pro

system

FL

Level

Meter

Peak-hold

function

(15

+

1

segments)

eeoeeererereeoerere

eee

eo

Miscellaneous

Power

requirements

U.S.,

Canadian

models

-++++++++rsrereereres

AC

120V

60

Hz

U.S.

militaly,

other

destination

models

-+++++++++++++++esere-

~AC

110V/120

—

127V/220V/240V

(switchable),

50/60

Hz

Power

consumption

U.S.,

Canadian

models

«++

++

-+++++-+-

++

26W

U.S.

militaly,

other

destination

models

-++++++++++++r+5+

28w

Dimensions

-----+-+++e+sesee+

457(W)

x

133.5(H)

x

372(D)

mm

Weight

(without

package)

+

+--+

++

1er

se

eeeee

cree

eer ere

eee

10.8

kg

Accessories

Operating

instructions

Connecting

Cords

----++ssesrere

cece

esse

etter

este

ester

rears

NOTE:

Specifications

and

design

subject

to

possible

modifications

without

notice,

due

to

improvements.

2.

PANEL

FACILITIES

@®

POWER

switch

Turns

the

power

on

and

off.

After

the

power

is

turned

on,

the

dotted

lines

in

the

level

meter

flash

for

approximately

4

seconds

until

the

circuits

of

the

unit

have

stabilized.

The

unit

will

not

operate

during

this

time.

@®

Cassette

door

OPEN/CLOSE

button

NOTE:

ff

the

cassette

door

is

closed

while

the

unit

is

turned

OFF,

and

the

power

is

then

turned

ON,

the

cassette

door

may

open

and

close

after

pressing

oné

of

the

operation

buttons.

This

occurs

when

the

microprocessor

resets

the

door

mechanism

to

its

initial

state

and

does

not

indicate

any

malfunctioning

of

the

unit.

@

COUNTER

selectors

RESET:

Resets

the

counter

indication

to

"0000".

MODE:

Each

time

this

button

is

pressed,

one

of

the

following

three

modes

is

set

in

sequence.

*

Normal

tape

counter

¢

Time

counter

(displays

the

elapsed

playback

or

recording

time)

¢

Remaining

time

counter

(displays

the

remaining

time

of

the

tape).

@

TAPE

CAPACITY

selector

To

indicate

the

correct

time

value

in

the

remaining

time

counter

mode,

this

selector

must

be

set

in

accordance

with

the

tape

used.

(ae

C90

—»=

C80L—e

C60

—e

ae

ed

©

TAPE

RETURN

button

This

button

is

used

in

the

tape

counter

mode

to

fast

forward

or

rewind

the

tape

to

a

point

near

the

counter

reading

"0000".

©

DOLBY

NR

selectors

ON/OFF:

Used

to

turn

the

Dolby

NR

Systems

circuits

ON

or

OFF.

B/C:

With

the

ON/OFF

switch

in

the

ON

position,

Dolby

B-type

NR

or

C-type

NR

can

be

selected

with

this

switch.

@

MPX

FILTER

switch

Set

this

switch

to

ON

when

recording

FM

broadcasts

with

one

of

the

Dolby

NR

systems.

®

REC

LEVEL

control

©

REC

BALANCE

control

@

TIMER

mode

selector

REC:

Set

to

this

position

for

timer

recording.

PLAY:

Set

to

this

position

for

timer

playback.

OFF:

When

the

timer

is

not

to

be

used,

set

the

selector

to

this

position.

(Normally

leave

the

selector

in

this

position.)

@

PHONES

LEVEL

control

Used

for

adjusting

the

volume

when

listening

with

needphones.

@

PHONES

jack

For

connection

of

standard

stereo

headphones.

@

Cassette

door

Open

and

close

this

door

by

pressing

the

OPEN/CLOSE

button

for

insertion

or

removal

of

the

tape.

@

Rewind

(«#4)

button

Press

this

button

to

rewind

the

tape.

Also,

this

button

is

used

for

music

search

during

playback.

®

Stop

(mi)

button

®

Play

(»)

button

@

Fast

forward

(»»

)

button

Press

this

button

to

fast

forward

the

tape.

Also,

this

button

is

used

for

music

search

during

playback.

@

Recording

(@)

button

When

this

button

is

pressed,

the

unit

is

set

to

one-touch

recording

pause

(recording

standby

mode).

®

Pause

(91)

button

The

tape

transport

can

be

momentarily

stopped

by

pressing

this

button

during

recording

or

playback.

Press

the

button

again

to

restart

operation,

The

button

does

not

operate

during

fast

forward

or

rewind.

@

Record

muting

(Q)

button

Press

this

button

to

create

an

unrecorded

space

during

recording.

@

METER RANGE

selector

Selects

wide

or

expanded

range

for

the

level

meter.

@

MONITOR

selector

For

monitoring

the

sound

during

recording,

this

switch

can

be

used

to

switch

between

source

sound

and

just

recorded

sound.

Normaily,

however,

the

unit

will

automatically

select

tape

playback

sound

after

playback

has

started

or

the

just

recorded

sound

after

recording

has

started.

@

REC

CALIBRATION

BIAS

control

It

is

possible

to

adjust

the

bias

according

to

the

tape

used

and

the

source

to

be

recorded.

©

@

REC

CALIBRATION

LEVEL

control

The

AUTO

TAPE

SELECTOR

of

this unit

matches

the

recording

characteristics

with

the

tape

used.

Proper

adjustment

of

the

REC

CALIBRATION

LEVEL

contro!

permits

optimum

use

of

the

given

tape

characteristics

for

even

better

recording

results.

@

OPERATING

DISPLAY

sees

ew

MC

we

wm

-3s

25

20

10-8

.4

2

6

vam.

ONDE

ANAND

BERN

Osene

suNet

©

Counter

*

The

counter

has

three

display

modes.

¢

If

the

cassette

door

is

open,

the

message

“OPEN’

is

displayed.

¢

During

music

search

the

number

of

selections

is

displayed.

@

TAPE

RETURN

Lights

up

during

tape

retum

operation.

©

Tape

transport

modes

4:

Lights

up

when

rewinding

the

tape.

>:

Lights

up

during

playback,

playback

pause,

recording

pause

and

recording.

Flashes

during

music

search.

PP:

Lights

up

when

fast

forwarding

the

tape.

i:

Lights

up

in

the

pause

mode.

©

MUTE

Flashes

and

lights

during

recording

mute

operation.

©

REC

Lights

up

during

recording.

©

Warning

zone

Changes

according

to

the

type

of

tape

used

and

to

the

selected

meter

range.

@

Monitor

source

TAPE:

Recorded

sound

SOURCE:

Original

source

sound

©

Scale

for

wide

range

©

Level

[

|:

Left

channel

|

R_|:

Right

channel

The

[{)

marks

indicate

the

reference

level

for

the

Dolby

NR

Systems.

@

REMAIN

Lights

‘up

when

the

remaining

time

counter

mode

is

selected,

@

LARGE

HUB

Lights

up

when

the

TAPE

CAPACITY

selector

is

pressed

in

the

remaining

time

counter

mode,

and

the

Large

Hub

mode

is

set.

®

TIME

COUNTER

Lights

up

in

the

time

counter

mode.

®

DOLBY

8-type

NR/C-type

NR

Indicates

the

selected

Dolby

NR

Systems,

B-type

or

C-type.

®

0B

position

for

expanded

range

®

MPX

FILTER

Lights

up

when

the

MPX

FILTER

switch

is

pressed

while

the

Dolby

NR

Systems

are

ON.

®

0

dB

position

for

wide

range

©

Tape

type

The

unit

will

automatically

detect

and

display

the

tape

type

(NORMAL/CrO2/METAL)

of

the

cassette

inserted.

When

no

tape

is

inserted,

METAL

is

dispiayed.

®

Scale

for

expanded

range

e

CONNECTIONS

Connection

of

input

and

output

cords

«

The

cords

to

be

used

have

white

and

red

plugs.

«

Connect

white

plugs

to

the

left

channel

(L),

and

red

plugs

to

the

right

channel

(R),

making

sure

that

the

colors

match.

Take

particular

care

to

insert

the

plugs

all

the

way

in.

Left

channet

OW

Red

piug

White

plug

Connection

to

an

audio

timer

For

details

on

the

connection

to

an

audio

timer,

refer

to

the

instruction

manual

of

the

audio

timer.

SG

8&8

Playback

connection

Recording

connection

|

Supplied

cords

CT-91a

T-91a

3.

EXPLODED

VIEWS

AND

PARTS

LIST

NOTES

:

the

mark)

using

a

supplied

mini-plug

cord,

and

you

will

be

able

to

operate

the

PAUSE

function

of

this

component

using

the

system

remote

control.

CONTROL

OUT

jack

Intermediary

output

of

remote

contro!

signals

from

the

above

input

jack.

Connect

it

to

the

CONTROL

IN

jack

of

another

component

compatible

with

the

Pioneer

System

Remote

Control.

3.1

EXTERIOR

Parts

List

of

Exterior

Mark

No.

Part_No.

CM—22B

ADG1036

REK-—102

REK-100

P

PB

BBP

RTT1061

SLF-401C

DBK-

106

PNB1109

RBF1019

RBH1150

RBL-059

RBM-014

REB—223

REB1038

15

REB1057

16

REC1008

17

RNH-184

18

AAM1001

19

ABA1023

20

AMR1159

Soore

ao

bf

WN=

aoa

hWN-

21

RAC1337

When

performing

unattended

recording

or

wake-up

playback

22

RAC-668

RAC1203

24

RAC1204

25

RAC1205

26

RAC1206

eoewoneons’

'

27

RAC1262

{

28

RAH1184

\itustration

not

applicable

i

29

RAP1003

to

the

UK.

model.

”

;

30

RMS1007

RMS1008

32

RNK1284

33

RNK1285

34

RNK1411

35

RNK1412

rr

Household

AC

outlet

f

36

RXA1158

37

RXA1160

38

RAH1197

39

RAH1198

40

RAH1368

CONTROL

IN

jack

*

Parts

without

part

number

cannot

be

supplied,

Connect

this

jack

to

the

CONTROL

OUT

jack

of

a

component

equi

with

the

Pioneer

System

Remote

Control

(bearing

replacing,

be

sure

to

use

parts

of

identical

designation.

Description

Strain

relief

AC

power

cord

Fuse

(FU103

1.6A//250V)

Fuse

(FU101,

FU102

1A/250V)

Power

transformer

(T1)

Diode

(D11)

Mounting

plate

Absorber

plate

B

Washer

Spring

Cassette

plate

spring

Nylon

rivet

(3.55.5)

Cover

cushion

(D)

Stabilizer

B

Rubber

spacer

(A)

Wood

spacer

Cord

clamper

Name

plate

Screw

Leg

assembly

Knob

(PHONES

LEVEL,

REC

CALIBRATION)

Knob

A

(TIMER)

Button

(POWER)

Button

(DOLBY,

MPX)

Button

(COUNTER)

Button

(«,

>,

>>,

@,

HO)

VR

knob

B(REC

BALANCE)

FL

filter

Under

escutcheon

Side

wood

(L)

Side

wood

(R)

Door

Button

holder

Side

mold

(L)

Side

mold

(R)

VR

knob

assembly

(A)

Button

assembly

(MONITOR)

Door

lens

FL

panel

Side

panel

Mark

105

106

107

108

109

110

4

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

*

The

A

mark

found

on

some

component

parts

indicates

the

impotance

of

the

safety

factor

of

the

part.

Therefore,

when

*

Parts

marked

by

“©”

are

not

always

kept

in

stock,

Their

delivery

time

may

be

longer

than

usual

or

they

may

be

unavailable.

Part

No.

Description

RAH1405

Door

panel

RXX1064

Cassette

plate

assembly

RXX1128

Bonnet

RXX1159

Door

assembly

RXX1204

Front

panel

assembly

BBZ40PO80FCC

Screw

BBZ30PO60FCC

Screw

IBZ30PO80FCC

Screw

BBT3OPO80FZK

Screw

BBZ40P180FCC

Screw

PYC30P100FMC

Screw

BBZ26PO80FZK

Screw

PMA30PO60FCU

Screw

REE1010

Motor

label

BIAS

VR

unit

Headphone

unit

INPUT

VR

unit

Amp

unit

FL

unit

Switch

unit

OSC.HX

unit

Timer

unit

Control

unit

Power

supply

unit

Tape

mechanism

unit

Power

transformer

sheet

Tape

mechanism

sheet

VR

rod

Center

stay

VR

holder

Panel

stay

Main

Chassis

P.C.B

holder

Shield

plate

VR

rod

guide

Joint

P.C.B

stud

Cassette

plate

Front

panel

Rear

panel

Exterior

3.2

Parts

Mark

10

No.

OoO-~

IMD

abhWN—

10

List

of

Mechanism

Unit

—Part

No.

RSF-031

RSX-059

RXM1016

RXM1018

RBA-064

RBL-044

REB-408

RBL-

028

RBL~030

RBL-098

REB1073

REB1074

RNL~016

RXA1235

RXA1236

RXA1238

RXA1240

RXB-362

RXB~466

RBL-031

RBL-032

RBL—033

RNK-815

RXB~-751

RXB-874

RXB~-875

RBL~037

RBL-038

REB-502

REB-S14

RNL-723

RNL-729

RXB-884

RBH1136

RBH1137

RBH1138

RBH1142

RBL-027

RBL-039

RBL~040

RBL-041

RBL-042

RBL-043

REB-447

RNH—-

184

RNK1297

RNL-733

RNL-734

RNL-735

RNL~

739

RNL-740

RNL~741

RNL~742

RNL-849

RNL-

850

Description

Mark

No

Part

No.

Description

Micro

switch

56

BBZ26PO80FZK

Screw

Rotary

encoder

57

BBZ30PO80FZK

Screw

Capstan

motor

assembly

58

BCZ30PO60FMC

Screw

Reel

motor

assembly

59

BMZ23P100FZK

Screw

Step

screw

60

BM2Z26PO030FZK

Screw

Thrust

spring

61

RBF-065

Washer

Rubber

cushion

62

BMZ30PO80FZK

Screw

Pinch

spring

63

JGZ20PO25FMC

Screw

Pinch

thrust

spring

64

PMA26POS5OFZK

Screw

Pinch

spring

(SUB)

65

PMA26PO60FZK

Screw

Capstan

belt

66

PMZ20PO80FZK

Screw

Capstan

belt

(A)

67

RBF-030

Oil

stopper

Tape

guide

68

RBF-069

Thrust

washer

(A)

Flywheel

assembly

69

RBF-070

Thrust

washer

(8)

Flywheel

assembly

(SUB)

70

RBF-O76

Slider

washer

Pinch

roller

(A)

assembly

71

RBF-O77

Oil

stopper

Pinch

roller

(R)

assembly

72

REC~371

Binder

Metal

holder

assembly

(A)

73

REF-022

Steel

ball

(¢

3)

Meta!

holder

assembly

(B)

74

REF-023

Stee!

ball

(>

4)

BT

spring

(A)

75

VCT30PO60FZK

Screw

BT

spring

(B)

76

VCZ26PO80FMC

Screw

Idler

pressure

spring

77

WA21D040D013

Washer

Reel

shaft

cap

(B)

78

WA26NO070W040

Washer

BT

disc

assembly

79

WA32D080D050

Washer

Reel

base

assembly

80

YE2OFUC

E

ring

Take—up

idler

assembly

81

YE25FUC

E

ring

Head

base

spring

82

YE30FUC

E

ring

Brake

spring

83

YS24FBT

Retaining

ring

Drive

belt

84

RXX1055

Power

motor

assembly

Brake

shoe

85

RXX1212

Head

base

assembly

Brake

101

Earth

lead

wire

assembly

Cam

gear

102

R/P

head

Side

cam

gear

assembly

103

Erase

head

assembly

Arm

shock--absord

spring

104

Connector

unit

Plate

(A)

return

spring

105

Power

motor

Plate

(B)

return

spring

106

Ree!

motor

mounting

plate

Frame

return

spring

107

Flywheel

holder

Pocket

spring

(A)

108

Thrust

holder

Eject

spring

109

Mechanism

chassis

Half

pressure

spring

assembly

110

Pressure

arm

(R)

Rec

arm

spring

Detect

arm

spring

111

Pressure

arm

(L)

Lock

lever

spring

112

Adjustment

nut

0

ting

113

Head

base

pressure

spring

Cord

clamper

114

Head

adjust spring

(C)

4115

Hight

spring

Arm

Rec

detect

arm

116

Head

base

CrO,

detect

arm

W17

Sub

head

base

Metal

detect

arm

118

Brake

lever

Piston

119

First

puliey

120

Gear

chassis

assembly

Cylinder

Lock

fever

124

Pinch

base

assembly

Collar

122

Pinch

lever

assembly

Pocket

(L)

123

Gear

base

assembly

Pocket

(R)

424

Second

pulley

assembly

125

Absorber

Mark

No.

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

Part_No.

Description

Cassette

clamp

shaft

Pocket

frame

Plate

(A)

Plate

(B)

Frame

Door

arm

Cassette

clamper

(L)

Cassette

clamper

(R)

Side

plate

Eject

lever

Top

frame

assembly

Shift

shaft

assembly

Door

frame

(R)

assembly

Door

frame

(L)

assembly

Rec

switch

unit

Tape

selector

unit

Sensor

unit

(A)

Sensor

unit

(B)

a4

J

1

Mechanism

Unit

l,

PACKING

‘arts

List

Mark

No.

1

2

3

4

5

6

7

Part_No.

RHA1029

RHA1030

RHG1124

RHX—034

RDE1013

RRD1062

RRE1026

Description

Pad

(F)

Pad

(R)

Packing

case

Sheet

Connection

cord

assembly

Operating

instructions

(French/Italian/Dutch/

Swedish/Spanish/

Portuguese)

Operating

instructions

(English

/German)

14

T91a

: 3

4

5

:

5.

SCHEMATIC

DIAGRAM

wae

AMP

UNIT

ee

-

faa

=

LEER

-

-——

IC1O1172)

16102

(172),0101,0102,

cwatirar

1C107,

METER

AMP

PB

EO

AMP:

10101

(272),

10102(2/2),PB

EO

AMP

I

1€103,

PB

OOLBY

B/C

mag

]

:

;

vR1

COTE

OS

METER

LEVEVL

ADy

misciees

e

0103,0104;

tee

120

yS/70pS

SWITCH

2

Panes

226

1C101

g

1.

RESISTORS

POWER

SUPPLY

UNIT

MECHA

UNIT

S

—

Indicated

in

2.

1/4W,

1/6W

and

1/8W.

£5%

tolerance

unless

otnerwise

ICT0i.

1C7C2

AAGIO9

74)

Noted

k:

kf,

M:

MM,

(F);

=

1%.

1G):

£2%,

(K);

=10%,

(M),

£20%

tolerance

99.

A

f

=

2

CAPACITORS

702

2SA1283

Q706,

Q707,

Q713.

2SA1309A

Indicated

in

capacity

(uF}/voltage

{V)

unless

otherwise

noted

po:

pF

Qzis

OOLSY

LEVEL

IL)

Indication

without

voltage

1s

SOV

except

electrolytic

capacitor.

Q708

“a

1€105,

1C106

4

7

2SA936

TAPE/SOURCE

SWITCH

AMP

3:

MOLTAGE,

CURRENT

Q705,

Q709.

QT.

=

2SC3311A

.

I:

0€

voltage

{v)

at

no

input

signal

Value

in

{—)

1s

OC

voltage

at

Q712,

QT14

Lo

4

é

all

|

ase

*

fated

‘power

Q701.

Q703,

Q704,

28D1275

\

meee,

i

F

.

2

SS.

USER

OEENS

Q710

630!

varos:

[i

4.

SWITCHES

D723

MTZLOC

108

PBLEVEL(L)

3

7

The

underiined

indicates

the

switch

position.

D716

MTZ13B

TMS

MIXING

AMP

ey

}

AMP

UNIT

D718,

D719

MTZ6.2B

|

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VRIIO:

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SET

ADJ.

VRIO1.

VRI02:

PB

EQ

AD)

meas

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br24

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$302.

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D713

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|

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301,

LINE

MUTE

RELAY

:

10103;

PB

DOLBY

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|

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FILTER

ON-OFF

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SW

UNIT

D709

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$1001

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@

1B2Zz1

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R302

33H

398

|

R306

$1002.

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won

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@

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$1004.

OPEN/CLOSE

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1$$25.1

ca

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PAUSE

58

MTZ12B

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$1007

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RETURN

rere

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$1008

PLAY

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RESET

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\@

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TAPE

SELECTOR

UNIT

i

aa

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TAPE

SELECT

=

METAL

~CrO2

CONTROL

UNIT

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SELECT

NORMAL

-NORMAL

1C80.

35

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|

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TIMER

UNIT

1¢802

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LT

gcse

Wor

12/2)

$1101

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REC

-

OFF-PLAY

:

100/16

METER

AD).

|

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PD4148B

a

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REC

SW

UNIT

a

REC

INK

OFF

-ON

1C803

Tc4osoBP

:

MECHA

UNIT

Q803-—Q806

2S

1309A

|

2

$011

D00R

LOSE

-

OPEN

Q807

DTCII3ES

|

POWER

SUPPLY

UNIT

Q801,

Qs02

2SC3311A

i

$701

POWER

ON-OFF

Q808

2$91302

OSC.

HX_UNIT

D801~

D805

1SS254

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VR

UNIT

=

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oe

SS

5

OTHERS

-

Ic60l

u

PCL297CA

Q611

cna

3073)

=>

Signal

route

R826

DCN1009

Q605,

QK6

28

Deol

DBO

1¢113;

REC

EO

AMP

a

*

.

Adjusting

point

R844,

R817

RCX

1008

Rizo

1601,

DOLBY

HX

PRO

Q6O8

Q6LO

Dei

:

The

A,

mark

found

on

some

component

parts

indicates

the

importance

of

R833

RCX

1009

to

ear

D608

|

VRIC

ine

safety

factor

of

the

pan.

Therefore.

when

replacing,

be

sure

to

use

Rees

nee

tole

°

TTT

Q601

QB03

DTCIMES

~

a

@

[FS

parts

of

denucal

designation

VR1201

:

Q604,

Q507,

Q613

28C3311

A

ZT)

604

D6u7.

DEVE,

188254

tol

Sane

30

ae

X

marked

capacitors

and

resistors

nave

parts

numbers

BIAS

FINE

o|

-

cos!

Thus

1s

the

Basie

Schemane

deagram,

Dut

the

actual

cwcunt

may

vary

due

to

VR1201

RCV1007

n628,,880

Q601,

OSC

ON/OFF

“ao

imorovements

in

design

vacos/—ay

ae:

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faze

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360

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R235

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—

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(2/4)

e)

|

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=

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=

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1

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£

1

1.603,

1.604

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1.605

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1.606.

L607

AC

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16

2

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R602.

VR604,

VR605

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C232

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ADS.

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2

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SUPPLY

UNIT

an

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RESET

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Q125-0130.1C115,

1c116,

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ons

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H

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i

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MECHANISM

SYSTEM

POWER

:

Line

voltage

can

be

changed

with

following

steps.

cn

+

y

1,240

1.

Disconnect

the

AC

power

cord.

i

,

POWER

CORO

=

2.

Remove

the

Bonnet

case.

““yoetose

{pot

tN

wo

3.

Change

the

connection

of

the

power

transformer

=

¢zz/z«0v

Ponty

Renee

i

lead

wire.

|

a

|

ore

k

;

‘3

10117,

1C11B;

OSC

SECTION

POWER

SUPPLY

:

4.

Stick

the

line

voltege

label

on

the

rear

panel.

ior

a

ae

Sa

=

\

a

ee

os

form

lo704;

CONTROL

Description

i

seh

|

POWER

S$

:

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j10_

pat

0702,0703,

AAX-193

220v

label

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7

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+

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=

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corr

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1302

BA6I38

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Q301

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Feg2

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5

10107, 10109.

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LEVEL

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l0O704;

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SECTION

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SUPPLY

aor

0702,0703;

10m

WRI07

:

REC

LEVEL

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Rec

Sensitivty

|

[|

|

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0709-0711,

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MOTOR

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UNIT

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VR401

RCV1009

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FILTER

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1

12

Pioneer CT-91a User manual

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