Onkyo CR-305X Truth table

18

CR-305X

17

Q103:TA7291S (motor driver)

Q691:TC7WU04FU (triple inverters)

1A

3Y

2A

GND

1

2

3

4 5

6

7

8Vcc

1Y

3A

2Y

Truth table

A Y

L H

H L

INPUT OUTPUT

IN1

0

1

0

1

IN2

0

0

1

1

OUT1

H

L

L

OUT2

L

H

L

MODE

STOP

CW/CCW

CCW/SW

BRAKE

CCW : Counter clockwise diection

CW : Clockwise diection

Vcc

REG

PROTECTOR

IN1 IN2 GND

OUT1

OUT2

Vss

Vref

28

1 59

3

6

7

ST STEREO

MUTING

MIN

kHz

MHz

MONOAUTOTRACKTIMER

W.DAY

W.END

REC

SLEEP

CD

MEMORY

REPEAT

RANDOM

RDS

PMAM

S.BASS

DIRECT

a

b

c

d

e

f

g

hj

k

m

n

p

r

10G 9G 8G 7G 6G 5G 4G 3G 2G 1G

Q751 : 10BT-167GK (FL TUBE)

10G 9G 8G 7G 6G 5G 4G 3G 2G 1G

P1 - a a a a a a a a -

P2 W.DAY j j j j j j j j MUTING

P3 W.END h h h h h h h h MIN

P4

MEMORY

k k k k k k k k S.BASS

P5 - b b b b b b b b -

P6 - f f f f f f f f -

P7 - g g g g g g g g -

P8 REC m m m m m m m m MHz

P9 - c c c c c c c c -

P10 - e e e e e e e e -

P11 REPEAT n n n n n n n n kHz

P12 RANDOM r r r r rr r r r DIRECT

P13 - p p p p p p p p -

P14 - d d d d d d d d -

P15 TIMER TRACK AUTO MONO AM PM RDS S

P16 CD - - - - Col -T STEREO

P17 SLEEP - - - - - Dp - -

(9G - 2G)

CR-305X

Contents

Main CD RECEIVER MODEL CR-305X TABLE OF CONTENTS Ref.NO.3654 082000 Silver models CAUTION ON REPLACEMENT OF OPTICAL PICKUP SPECIFICATIONS AMPLIFIER CD PLAYER TUNER PROTECTION OF EYES FROM LASER BEAM DURING SERVICING CR-305X WARNING!! Laser Diode Properties LASER WARNING LABEL SERVICE PROCEDURE 1. Replacing the fuses Bottom side 3. Safety-check out 2. To initialize the unit FRONT PANEL VIEW Asian and European models U.S. and Canadian models REAR PANEL VIEW REMOTE CONTROLLER : U Enables you to select the PRESET stations. Enables you to mute the sound temporarily. W MICROPROCESSOR CONNECTION DIAGRAM KEY SWITCH Q701 MICROPROCESSOR MPD78045FGF-119-3B9 RI C703 MICR OPR OCESSOR TERMINAL DESCRIPTION IC BLOCK DIAGRAM AND DESCRIPTIONS Q101:CXA1992BR (RF Signal Processing Servo Amplifier) Block Diagram Terminal description Q301:CXD2589Q (CD Digital Signal Processor) Bloch Diagram Terminal description Q401:TC9273N-007 (Analog function switch) Q402:TC9162AF Analog function switch 15 16 Q102:LA6541D (4-channel ridge Driver for Compact Dizcs) Q180:BU1923 (RDS Decoder( MUX VREF VDD1 Truth table A Y L H H L 28 6 7 Q751 : 10BT-167GK (FL TUBE) CD MECHANISM EXPLODEE VIEW(1) CD MECHANISM EXPLODEE VIEW(2) pickup drive unit The mechanical parts with no part number in the exploded views are not supplied. REPLACEMENT OF OPIAL PICKUP CHASSIS EXPLODED VIEW PARTS LIST (Fig-3) (2) CD Mechanism (Fig2) CHASSIS EXPLODED VIEW WIRING VIEW BLOCK DIAGRAM AC INPUT P33 CD MACHANISM PRINTED CIRCUIT BOARD VIEW PARTS LIST SCHEMATIC DIAGRAM (AMPLIFIER SECTION) PRINTED CIRCUIT BOARD VIEW 1 SCHEMATIC DIAGRAM (CD & MICROPROCESSOR SECTION) PRINTED CIRCUIT BOARD VIEW 2 U3 U8 PRINTED CIRCUIT BOARD VIEW 3 U4 U8 U9 39 40 CD ADJUSTMENT PROCEDURES CLOCK ADJUSTMENT PROCEDURES Display reqency counter F 12 ASSEMBLING OF PAD Pad and Pad(S) are combined. Pad Pad(s) Completed bottom view Pad(S) is folded. Pad is folded.