Onkyo FR-155 Service Manual

CD/MD TUNER AMPLIFIER

MODEL FR-155

FR-155

Ref. No. 3662

092000

Silver model

UDT
UGT

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.

MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THA T EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.

120V AC, 60Hz
220 -230V AC, 50/60Hz

TABLE OF CONTENTS

Specifications ----------------------------------------------------------­Caution on replacement of optical pickup ---------------------------
Protection of eyes from laser beam during servicing ---------------
Laser W arning Label----------------------------------------------------
Service procedures -----------------------------------------------------
Front panel view --------------------------------------------------------
Connecting to Other Components------------------------------------
Remote controller -------------------------------------------------------
Setting the day of the Week and the Time----------------------------
IC Block diagram and descriptions -----------------------------------
Microprocessor Connection Diagram---------------------------------
Microprocessor Terminal Description--------------------------------
Operation of the Microprocessor--------------------------------------
MD Mechanism Exploded view-------------------------------------
MD Mechanism Disassembly ----------------------------------------
MD Mechanism Reassembly ----------------------------------------
MD Adjustment Procedures ------------------------------------------
MD Mount View / Messages--------------------------------------------
CD Mechanism Exploded View ---------------------------------------
CD Adjustment Procdedure-------------------------------------------
Clock Adjustment Procdedure-----------------------------------------
Handling of Pickup-----------------------------------------------------
Chassis Exploded View Parts List------------------------------------
Chassis Exploded View ------------------------------------------------
Block Diagram----------------------------------------------------------
Block Diagram (Power Supply Section)------------------------------
Schematic Diagram (Amplifire Section)-----------------------------
Printed Circuit Board View 1------------------------------------------
Schematic Diagram (CD&Microprocessor Section)----------------
Printed Circuit Board View 2------------------------------------------
Schematic Diagram (Power Supply Section)-----------------------
Printed Circuit Board View 3------------------------------------------
Printed Circuit Board View Parts List--------------------------------
Wiring V ie w-------------------------------------------------------------
Packing View Parts List------------------------------------------------

2
2
3
3
3
4
5
6
6
7
15
16
17
18~19
20,21
22
23~25
26
27,28
29
30
31
32
33
35
37
39
41
43
45
47
49
51~54
55
57

FR-155

SPECIFICATIONS

General

Power supply AC 220-230 V, 50/60 Hz

AC 120 V, 60 Hz

Power consumption 63 W (220-230 V, 50/60 Hz)

82 W (120 V, 60 Hz)

(Standby) 7 W
(Energy Save) 1.5 W
Clock precision

Dimensions (W × H × D) 205 × 154 × 356 mm
Weight 5.5 kg, 12.1 lbs

Amplifier

Power output

Dynamic power 2 × 23 W at 4 W
Total harmonic distortion 0.4 % at rated power
IM distortion 0.2 % at rated power
Damping factor 25 at 8 Ω
Sensitivity and impedance LINE, TAPE:

Frequency response 10 to 50,000 Hz : +0dB / -3 dB
Tone Control S.BASS1: +4 dB at 40 Hz

Signal to noise ratio

Muting

CD player

Signal readout system Optical non-contact
Frequency response 10 Hz to 20 kHz ( 3 dB)
Wow and flutter Below threshold of

monthly error: 30 seconds
(at 25 degrees Celsius)

8-1/16" × 6-1/16"× 14"

2 × 26 W at 4 W EIAJ
2 × 21 W at 6 W EIAJ
Rated Power
2 × 19 W min, RMS at 4 W

1 kHz no more than

0.2 % THD

150 mV, 50 kW

CDR: 150 mV, 50 kW

S.BASS2: +8 dB at 50 Hz
S.BASS3: +4 dB at 10 kHz/

+8 dB at 50 Hz

LINE, CDR, TAPE: 100dB
(IHF-A)
50 dB

measurability

MD recorder

Signal readout system Optical non-contact
Recording time 320 minutes maximum

(at LP4 mode)

Frequency response 10 Hz to 20 kHz ( 3 dB)
Wow and flutter Below threshold of

measurability

Tuner

Tuning range FM: 87.50 to 108.00 MHz

(50 kHz steps)

AM: 522 to 1611 kHz

(9 kHz steps)

Usable sensitivity FM Mono:11.2 dBf,

1.0 µV (75 W IHF)
Stereo:17.2 dBf,

2.0 µV (75 W IHF)

AM: 30 µV

50 dB quieting sensitivity

Capture ratio 2.0 dB
Image rejection ratio FM: 85 dB

IF rejection ratio FM: 90 dB
Signal to noise ratio FM Mono : 73 dB IHF

Selectivity FM: 50 dB
Harmonic distortion FM: Mono: 0.7 %

Frequency response FM:
Stereo separation FM: 40 dB at 1,000 Hz

Specifications and features are subject to change without noitce.

FM Mono:17.2 dBf,

2.0 µV (75 W)
Stereo:37.2 dBf,

20.0 µV (75 W)

AM: 40 dB
AM: 40 dB

Stereo : 67 dB IHF

AM: 40 dB
( 300 kHz at 40 kHz devi.)

Stereo: 0.3 %

AM: 0.7 %

30 to 15,000 Hz ( 1.5 dB)

FM:

30 dB at 100 to 10,000 Hz

CAUTION ON REPLACEMENT OF OPTICAL PICKUP

The laser diode in the optical pickup block is so sensitive to
static electricity, surge current and etc., that the components
are liable to be broken down or its reliability remarkably
deteriorated.

PRECAUTIONS

1.Ground for the work-desk.
Place a conductive sheet such as a sheet of copper

(with impedance lower than 10 Mohm) on the work­desk and place the set on the conductive sheet so that
the chassis can be grounded.

2.Grounding for the test equipments and tools.

Test equipments and toolings should be grounded in
order that their ground level is the same the ground of
the power source.

During repair,carefully take the following precautions.
(The following precautions are included in the service
parts.)

3. Grounding for the human body.
Be sure to put on a wrist-strap for grounding whose
other end is grounded.
Be particularly careful when the workers wear
synthetic fiber clothes, or air is dry.

4. Select a soldering iron that permits no leakage and

have the tip of the iron well-grounded.

5. Do not check the laser diode terminals with the

probe of a circuit tester or oscilloscope.

2

.

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING

FR-155

This set employs a laser. Therefore, be sure to follow carefully
the instructions below when servicing.

WARNING!!

SERVICE WARNING : DO NOT APPROACH THE
LASER EXIT WITH THE EYE TOO CLOSELY.

IN CASE IT IS NECESSARY TO CONFIRM LASER
BEAM EMISSION, BE SURE TO OBSERVE FROM
A DISTANCE OF MORE THAN 30cm FROM THE
SURFACE OF THE OBJECTIVE LENS ON THE
OPTICAL PICK-UP BLOCK.

LASER WARNING LABEL

The label shown below are affixed.

1. Warning label

Laser Diode Properties

Material: GaAS/GaALAs
Wavelength: 780nm
Laser output: max. 0.5mW*
Emission Duration: continuous
*This output is the value measured at a distance about 1.8mm

from the objective lens surface on the Optical Pick-up Block.

2. Class 1 label

LUOKAN 1
LASERLAITE

"CLASS 1 LASER
PRODUCT"

KLASS 1
LASER APPARAT

SERVICE PROCEDURE

1. Replacing the fuses

This symbol located near the fuse indicates that the
fuse used is show operating type, For continued protection against
fire hazard, replace with same type fuse , For fuse rating, refer to
the marking adjest to the symbol.

Ce symbole indique que le fusible utilise est e lent.
Pour une protection permanente, n'utiliser que des fusibles de meme
type. Ce demier est indique la qu le present symbol est apposre.

REF.NO.

F901

PART NO.

252157
252083

NOTE : <DT> : 120 V model only

<GT> : 220 V~230 V model only

2. To initialize the unit

1. Press and the hold down the CD STOP button , then press the
STANDBY/ON button.

2. After " All lighting " is displayed, the preset memory and each
mode stored in the memory, are initialized and will return to the
factory settings.

3. Press the STANDBY/ON button.

4. Unplug the AC plug from the wall outlet.

DESCRIPTION

1.25A-UL/T-237, Fuse <DT>

0.4A-SE-EAW, Fuse <GT>

3. Safety-check out

(Only U.S.A. model)
After correcting the original service problem perform the
follwing safety check before releasing the set to the customer
Connect the insulating-resistance tester between the plug of
power supply cord and terminal GND on the back panel.
Specifications: More than 10Mohm at 500V

4. Memory Preservation

This unit does not require memory preservation batteries. A built-in
memory power back-up system preserves the contents of the
memory during power failures and even when the unit is un-plugged.
The unit must be plugged in order to charge the back-up
system.
The memory preservation period after the unit has been unplugged
varies depending on climate and placement of the unit. On the
average, memory contents are protected over a period of a few
weeks after the last time the unit has been unplugged. This period
is shorter when the unit is exposed to a highly humid climate.

5. Changing the AM band step

With the exception of the worldwide models, a tuning step selector
switch is not provided. When you change the band step, change
the parts as shown below.

To 10kHz To 9kHz
R748 open 1 kohms
R749 1 koms open

R748 and R749 on the microprocessor PC board (NADG-6933)

3

FR-155

FRONT PANEL VIEW

MD disc slot

VOLUME control

ACOUSTIC

STANDBY/ON button

ENERGY SAVE button

REC MODE switc

Remote control sensor

PRESENCE

/indicator

CD disc tray

DISPLAY button

MD

CD/ MD TUNER AMPLIFIER

DISC LOADING MECHANISM

CD/ MD

FM/AM

button

MD
MD

button

button
CD/MD button
FM/AM button

OTHER

STANDBY/ON

ENERGY SAVE

WIDE RANGE AMPLIFIER
TECHNOLOGY

DISCRETE OUTPUT STAGE

ACOUSTIC
PRESENCE

VOLUME

MIN MAX

INPUTS

REC

CD DUBBING

MODE

AUTO/ MONO

OTHER INPUTS button
MD

REC button
CD DUBBING button
MODE button

AUTO/MONO button

button

CD
MULTI JOG dial

EDIT/CLEAR/NO button
REPEAT/YES button

CD

button

CD button

MULTI JOG

PUSH TO ENTER

EDIT/ CLEAR

REPEAT

NO

YESTUNING

PHONES

REC MODE

SP

LP2

MONO

h

LP4

DISPLAY

TIMER

PHONES jack

/ buttons

TUNING / buttons

DISPLAY

TIMER indicator

CD indicator

SOURCE indicator

Timer indicators

Recording level indicator

MUTING indicator

LEVEL-SYNC indicator

DIGITAL indicator

Playback mode indicators

SLEEP

SOURCE CD TIMER MD MDCHCD
ONCE
W.DAY
W.END
REC

MUTING
L

- 40 - 20 -10 0 OVER- 6 - 2-

R

LEVEL-SYNC DIGIT AL

CHAIN
REPEAT

1 TR MEMOR Y

RANDOM

DISC TRA CK ELAPSED REMAIN TITLE

CD MD

DUB

TUNEDSTEREOAUTOMONO

TIMER button

TOC

MD indicator
MD/CD setting indicator

Multi-purpose displa

s

y

CH (channel) indicator
When lit, the indicators show

what the mulit-purpose display
( Multi-purpose display) above
them is currently displaying.

TOC indicator

MD operation indicators

DUB indicator

CD operation indicators

Indicators for radio frequency
information

4

CONNECTING TO OTHER COMPONETS

FR-155

Connecting an Onkyo stereo
cassette tape deck

The illustration below describes the connections to an Onkyo stereo
cassette tape deck.

TAPE OUT (REC) and IN (PLAY) jacks of the unit to the INPUT (REC) and
OUTPUT (PLAY) jacks of the cassette tape deck, respectively.

Audio
connection
cable

LINE-1 LINE-2 TAPE

L

R

FR-155's rear panel

DIGITAL

OUT IN

OPTICAL

To connect to another cassette tape deck, connect the

Onkyo stereo cassette

: Signal flow

tape deck rear panel

INPUT OUTPUT

white

(REC) (PLAY)

L

red

R

OUT IN OUT IN

(

REC)(PLAY

WOOFER

REMOTE

CONTROL PRE OUT

CDR

)(

)

REC

SUB

cable supplied with
the Onkyo stereo
cassette tape deck

L

R

)(

PLAY

Audio connection
cable

REMOTE

CONTROL

Connecting a portable MD player

Refer to the portable MD playerÕs Instruction Manual.

: Signal flow

Audio
connection
cable

white

red

LINE-1 LINE-2 T

L

R

OUT

(

REC

ANTENNA

Rear Panel View

LINE-1 LINE-2 TAPE

OUT IN OUT IN

L

R

AM

(

REC)(PLAY

CAUTION: SPEAKER IMPEDANCE

4 OHMS MIN./ SPEAKER

DIGITAL

SUB

WOOFER

OUT IN

REMOTE

FM

CONTROL PRE OUT

75

OPTICAL

CDR

)(

)

PLAY)(REC

SPEAKERS

L

R

Connecting an Onkyo compact
disc recorder

The following diagram shows how to connect an
optional Onkyo compact disc recorder to the FR-155.
Connect its CDR OUT (REC) jacks and IN (PLA Y)
jacks to the disc recorderÕs INPUT (REC) jacks and
OUTPUT (PLAY) jacks respectively.

: Signal flow

LINE-1 LINE-2 TAPE

L

R

FR-155's rear panel

DIGITAL

OUT IN

OPTICAL

L

R

+–

+–

cable that comes

An
with the compact disc recorder

jack connection enables you to use the

The

following functions:

ANALOG

INPUT

OUTPUT

(REC)

L

R

K

red

white

Audio connection cable

OUT IN OUT IN

(

)(

REC)(PLAY

SUB

WOOFER

REMOTE

CONTROL PRE OUT

¥ You can control a connected Onky o compact disc

recorder from the FR-155' s remote controller.

¥ When the connected Onkyo compact disc recorder

plays bac k, the Input Selector on the FR-155 is
automatically switched to CD-R.

¥ To connect both CD recorder and a cassette tape

deck to the FR-155, connect the
both devices.

Jacks on the compact disc

recorder's rear panel

REMOTE

CONTROL

(PLAY)

L

REC

INPUT1 INPUT2

L

R

CDR

L

R

)(

)

PLAY

Optical fiber audio cable

DIGITAL

OPTICAL

OUTPUT

connectors of

Connecting a DVD player

In addition to the optical digital audio connections,you must also
make analog connections.To connect to the Onkyo DVD player, be
sure to connect to the LINE-1 jacks with the audio connection cable,
not the LINE-2 jacks.

DVD player

Digital

audio

output

Analog

audio output

L R

Audio connection
cable

Optical fiber
audio cable

: Signal flow

FR-155's rear panel

white

L

R

red

LINE-1 LINE-2 TAPE

DIGITAL

OUT IN

OPTICAL

OUT

(

REC)(PL

REMOTE

CONTROL PR

S

WO

Connecting a subwoofer

The FR-155 has a SUBWOOFER PRE OUT jack. Connect
an active subwoofer (a subwoofer that contains an amplifier),
or connect an amplifier to the FR-155, then connect a non­active subwoofer to the amplifier.

Active subwoofer

(with a built-in amplifier)

SUB

WOOFER

PRE OUT

Subwoofer

(without a built-in amplifier)

Amplifier

: Signal flow

5

FR-155

REMOTE CONTROLLER

STANDBY/ON button

CDR/TAPE/LINE/DIGITAL buttons

CD button

MD button

Number buttons

/TAPE REW button

MUTING button

button

MODE button

REPEAT button

CLEAR button

SCROLL button

STANDBY/ON SLEEP

TAPE REW

CD/MD/CDR

REPEAT

CLEAR

SCROLL

CLOCK

CALL

CDR TAPE LINE1 LINE2

CD MD FM AM

1 2 3 4

9 10/0 --/---

M

E

U

L

U

O

P

V

MUTING

V

N

O

L

W

U

O

M

E

D

MODE

REMOTE CONTROLLER

RC-434S

DIGITAL

INPUT

8765

A.PRESENCE

TAPE FF

CD

MD

CDR

TAPE

SLEEP button
CLOCK CALL button

FM/AM buttons

A.PRESENCE button

/TAPE FF button

VOLUME

/ buttons

button

CD operation buttons
MD operation buttons
Operation buttons for an Onkyo CDR
Operation buttons for an

Onkyo stereo cassette tape

dec

k

SETTING THE DAY OF THE WEEK AND THE TIME

You can select either the 12-hour display or
to set the time based on the 24-hour display.)

1

TIMER

2

MULTI JOG

PUSH TO ENTER

3

MULTI JOG

PUSH TO ENTER

4

MULTI JOG

PUSH TO ENTER

Press TIMER repeatedly
"Clock"

appears in the display.

SLEEP SOURCE C D TIMER M D M DCHC D
ONCE
W.DAY
W.END
REC

S.BASS

MUTING DIGITAL CHAIN

LEVEL - SYNC

L

-40-20-

-

10 0 OVER-6-2

R

Press MULTI JOG.

SLEEP SOURCE C D TIMER M D M DCHC D
ONCE
W.DAY
W.END
REC

S.BASS

MUTING DIGITAL CHAIN

LEVEL - SYNC

L

-40-20-

-

10 0 OVER-6-2

R

You can now set the day of the week.
If you prefer the 12-hour display, press

DISPLAY.

Turn MULTI JOG to select the
current day of the week.

SLEEP SOURCE C D TIMER M D M DCHC D
ONCE
W.DAY
W.END
REC

S.BASS

MUTING DIGITAL CHAIN

LEVEL - SYNC

L

-40-20-

-

10 0 OVER-6-2

R

Press MULTI JOG to confirm the

SLEEP SOURCE C D TIMER M D M DCHC D
ONCE
W.DAY
W.END
REC

S.BASS

MUTING DIGITAL CHAIN

LEVEL - SYNC

L

-40-20-

-

10 0 OVER-6-2

R

You can now set the time .

REPEAT
1 TR MEMORY
RANDOM

REPEAT
1 TR MEMORY
RANDOM

REPEAT
1 TR MEMORY
RANDOM

REPEAT
1 TR MEMORY
RANDOM

until

DISC TRACK ELAPSED REMAIN TITLE
RDS MONO AUTO STEREO TUNED

M D

C D

DUB TOC

DISC TRACK ELAPSED REMAIN TITLE
RDS MONO AUTO STEREO TUNED

M D

C D

DUB TOC

DISC TRACK ELAPSED REMAIN TITLE
RDS MONO AUTO STEREO TUNED

M D

C D

DUB TOC

DISC TRACK ELAPSED REMAIN TITLE
RDS MONO AUTO STEREO TUNED

C D

M D

DUB TOC

setting.

24-hour displa

DISPLAY

5

MULTI JOG

PUSH TO ENTER

6

MULTI JOG

PUSH TO ENTER

To cancel the clock setting

Press EDIT/CLEAR /NO.

y. (This section

explains how

1

Turn MULTI JOG to set the current

(This example

shows the 24-hour display.)

SLEEP SOURCE C D TIMER M D M DCHC D
ONCE
W.DAY
W.END
REC

LEVEL - SYNC

S.BASS

MUTING DIGITAL CHAIN

L

-40-20-

-

10 0 OVER-6-2

R

REPEAT
1 TR MEMORY
RANDOM

DISC TRACK ELAPSED REMAIN TITLE
RDS MONO AUTO STEREO TUNED

C D

Press MULTI JOG in sync with
signal.

SLEEP SOURCE C D TIMER M D M DCHC D
ONCE
W.DAY
W.END
REC

LEVEL - SYNC

S.BASS

MUTING DIGITAL CHAIN

L

-40-20-

-

10 0 OVER-6-2

R

The clock starts operating and a dot
indicating seconds starts to flash.

REPEAT
1 TR MEMORY
RANDOM

DISC TRACK ELAPSED REMAIN TITLE
RDS MONO AUTO STEREO TUNED

C D

2-6
EDIT/
CLEAR/NO

M D

DUB TOC

the time

M D

DUB TOC

time

.

Checking the time and the day of the week

To check the time and the day of the week, press
TIMER to display "Clock, then press DISPLAY.The
display now indicates the day of the week and the
current time.Alternatively,press CLOCK CALL on the
remote controller. To switch between the 12-hour and
24-hour displays,press DISPLAY while the current time
is indicated on the display.

STANDBY/ON SLEEP

CLOCK

CALL

DIGITAL

CDR TAPE LINE1 LINE2

CD MD FM AM

1 2 3 4

INPUT

CLOCK CALL

6

I C BLOCK DIAGRAM AND DESCRIPTIONS

FR-155

Q401:TC9273N-004 (Analog function switch)

VSS

VDD

128

2

S1
S2
S3
S4
S5
S6
S7
S8
S9

S10

OUT

10
11
12

3
4
5
6
7
8
9

10BITS LATCH CIRCUIT

LEVEL SHIFT AND

SHIFT REGISTER

13 14 15 16

GND CK DATA STB

10BITS LATCH CIRCUIT

27
26
25
24
23
22
21
20
19
18
17

S1
S2
S3
S4
S5
S6
S7
S8
S9

S10

OUT

Q103,Q181:TA7291S (Motor driver)

Vref

Vcc

2

8

REG

PROTECTOR

159

IN1 IN2 GND

INPUT

IN1

IN2
0
1
0
1

CCW : Counter clockwise direction
CW : Clockwise direction

OUTPUT

OUT1
0
0
1
1

OUT2

MODE

STOP

H
H

L

L
H
L

CW/CCW
CCW/SW

BRAKE

6

7

3

Vss

OUT1

OUT2

Q447:TC9162AN (Analog function switch)

S1

S2

S3

COM1

S4

S5

S6

COM2

S7

S8

COM3

ST

12

13

10

11

VSS

1

2

3

4

5

6

7

8

9

LATCH CIRCUIT

LEVEL SHIFTER

SHIFT REGISTER

GND

14

VDD

28

LATCH CIRCUIT

LEVEL SHIFTER

27

26

25

24

23

22

21

20

19

18

17

16

15

S1

S2

S3

COM1

S4

S5

S6

COM2

S7

S8

COM3

DATA

CK

7

FR-155

Q351:CXD2589Q (CD Digital Signal Processor)

Block Diagram

XTSL

VPCO

VCKI

V16M

VCTL

XUGF

GFS

EMPH

49

EFM

WFCK

56

54

C4M

RF

ASYI

ASYO

BIAS

XPCK

FILO

FILI

PCO

CLTV

52

52

35

35

37

37
38
36

36

48

48
30

30
31

31
29

29
33

38

33

51

51 25 26 27 28 47 49 54 56 50 39 41 43 55 40 42 44 62

25

Clock

28

26

47

27

OSC

Generator

demodurator

Asymmetry

Corrector

Digital

PLL

Sub Code
Processor

Error

Corrector

16K

RAM

C2PO

LRCK

39

50

D/A

Interface

Digital

OUT

PCMD

41

BCK

EMPHI

LRCKI

40

424344

55

Serial-In
Interface

Over Sampling

Digital Filter

Noise Shaper

PWM

PCMDI

BCKI

SYSM

62

3rd-Order

Timing

Logic

PWM

24

24

23

23

79

79

70

70
71

71

3

3

2

2

TES1
TEST

XRST

RMUT
LMUT

XTAI
XTAO

FOK

SEIN

CNIN

18

18
10

10
11

11

Servo

Auto

Sequencer

12 13 14 6 7 8 9 15 16 17 57 58 59 5 4 21 22 53 74 75 76 67 66 65

14

13

12

DATO

CLKO

XLTO

CPU

Interface

65

7

SENS

DATA

XLAT

15 16 17

CLOK

SPOA

XLON

SPOB

57

58

SCOR

9

8

59

EXCK

SBSO

4

SQCK

SQSO

Digital

CLV

21

MDP

22

53

PWMI

DOUT

74

LOUT2

75

76

AIN2

AOUT2

67

LOUT1

66

65

AIN1

AOUT1

8

PIN Description

Pin
No.

1
2
3
4
5
6
7
8

9
10
11
12
13

14
15
16
17
18

19
20
21
22
23
24
25
26
27

28

29
30
31
32
33
34
35
36
37
38
39
40
41

42

Symbol

VSS
LMUT
RMUT
SQCK
SQSO
SENS
DATA
XLAT

CLOK
SEIN
CNIN
DATO
XLTO

CLKO
SPOA
SPOB
XLON
FOK

VDD
VSS
MDP
PWMI
TEST
TES1
VPCO
VCKI
V16M

VCTL

PCO
FILO
FILI
AVSS
CLTV
AVDD
RF
BIAS
ASYI
ASYO
LRCK
LRCKI
PCMD

PCMDI

I/O

GND

—

Left-channel zero detection flag.

O

Right-channel zero detection flag.

O

SQSO readout clock input.

I

Sub Q 80-bit serial output.

O

SENS output to CPU.

O

Serial data input from CPU.

I

Latch input from CPU. Serial data is latched at the

I

falling edge.
Serial data transfer clock input from CPU.

I

SENS input from SSP.

I

Track jump count signal input.

I

Serial data output to SSP.

O

Serial data latch output to SSP. Latched at the falling

O

edge.
Serial data transfer clock output to SSP.

O

Microcomputer extended interface (input A).

I

Microcomputer extended interface (input B).

I

Microcomputer extended interface (output).

O

Focus OK input.

I

Used for SENS output and the servo auto sequencer.
Power supply (+5V).

—

GND

—

Spindle motor servo control.

O

Spindle motor external control input.

I

TEST pin; normally GND.

I

TEST pin; normally GND.

I

Charge pump output for the wide-band EFM PLL.

O

VCO2 oscillation input for the wide-band EFM PLL.

I

VCO2 oscillation output for the wide-band EFM

O

PLL.
VCO2 control voltage input for the wide-band EFM

I

PLL.
Master PLL charge pump output.

O

Master PLL (slave = digital PLL) filter output.

O

Master PLL filter input.

I

Analog GND.

—

Master VCO control voltage input.

I

Analog power supply (+5V).

—

EFM signal input.

I

Constant current input of the asymmetry circuit.

I

Asymmetry comparator voltage input.

I

EFM full-swing output (low = VSS, high = VDD).

O

D/A interface. LR clock output f = Fs.

O

LR clock input.

I

D/A interface. Serial data output (two's complement,

O

MSB first).
D/A interface. Serial data input (two's complement,

I

MSB first).

Description

Pin
No.

43
44
45
46
47

48

49

50

51

52

53
54

55

56
57

58
59
60
61
62
63
64
65
66
67
68
69
70

71
72
73
74
75
76
77
78
79
80

Symbol

BCK
BCKI
VSS
VDD
XUGF

XPCK

GFS

C2PO

XTSL

C4M

DOUT
EMPH

EMPHI

WFCK
SCOR

SBSO
EXCK
VSS
VDD
SYSM
AVSS
AVDD
AOUT1
AIN1
LOUT1
AVSS
XVDD
XTAI

XTAO
XVSS
AVSS
LOUT2
AIN2
AOUT2
AVDD
AVSS
XRST
VDD

I/O

D/A interface. Bit clock output.

O

D/A interface. Bit clock input.

I

GND

—

Power supply (+5V).

—

XUGF output. Switched to MNT1 or RFCK output

O

by a command.
XPLCK output. Switched to MNT0 output by a com-

O

mand.
GFS output. Switched to MNT3 or XRAOF output

O

by a command.
C2PO output. Switched to GTOP output by a com-

O

mand.
Crystal selector input. Low: 16.9344MHz;

I

high: 33.8688MHz.

4.2336MHz output. 1/4 frequency-divided VCKI out-

O

put in CAV-W mode.
Digital Out output.

O

Outputs a high signal when the playback disc has

O

emphasis, and a low signal when there is no emphasis.
Inputs a high signal when de-emphasis is on, and a

I

low signal when de-emphasis is off.
WFCK output.

O

Outputs a high signal when either subcode sync S0

O

or S1 is detected.
Sub P to W serial output.

O

SBSO readout clock input.

I

GND

—

Power supply (+5V).

—

Mute input. Active when high.

I

Analog GND.

—

Analog power supply (+5V).

—

Left-channel analog output.

O

Left-channel operational amplifier input.

I

Left-channel LINE output.

O

Analog GND.

—

Power supply for master clock.
Crystal oscillation circuit input. Input the external

I

master clock via this pin.
Crystal oscillation circuit output.

O

GND for master clock.
Analog GND.

—

Right-channel LINE output.

O

Right-channel operational amplifier input.

I

Right-channel analog output.

O

Analog power supply (+5V).

—

Analog GND.

—

System reset. Reset when low.

I

Power supply (+5V).

—

Description

FR-155

9

FR-155

Q101:CXA1992BR (RF Signal Processing Servo Amplifier)
Block Diagram

FE-BIAS

V

TEO

LPFI

TEI

ATSC

TZC

TDFCT

VC

FZC

O
RF

M

­FE

-

LDON

I

­RF

323334353637

VEE

LEVEL S

VEE

MIRR

VCC

LPCL

LPC

TGFL

IIL DATA REGISTER
INPUT SHIFT REGISTER
ADDRESS DECODER
SENS SELECTOR
OUTPUT DECODER

DFCTO IFB1-6

VCC

FS1

FS2

Charge

VEE

8

SRCH

BAL1-4
TOG1-4

up

CP

31

VCC

9

TGU

30

VEE

FS1-4 TG1-2

TG2

10

CB

MIRR

TG2

VCC

DFCT

IIL

TTL

TN1-7 PS1-4

TM3

FSET

11

CC1

DFCT1

FSET

CC2

2829

CC1

12

FOK

27

26

SENS2

IIL

TTL

TTL

IIL

ISET

VCC

VCC

TM4

TM6

TM3

TM5

VEE

VEE

13

O

M

-

­TA

TA

25

SENS1

24

C.OUT

23

XRST

22

DATA

XLT

21

CLK

20

LOCK

19

VCC

V

CC

18

ISET

17

16

SL-O

15

SL-M

14

SL-P

TM2

M

-

RFTC

RF SUMMING AMP

FO.BIAS
WINDOW COMP.

RF

FOK

FOH

FOL

TGH

TGL
BALH
BALL
ATSC

TZC

FZC

PD

VEE

APC

LASER POWER CONTROL

IFB5

IFB3

IFB4

TRK.GAIN
WINDOW COMP

LD

VEE

FE AMP

IFB6

PD1

PD2

3839

PD1 IV

PD2 IV

AMP

AMP

40

41

F

42

E

EI

43

EE

44

F IV AMP

E IV AMP

BAL1

BAL2

BAL3

TOG2

TOG3

BAL4

TOG4

VEE

TOG1

TGFL

VCC

VCC

IFB2

IFB1

VEE

45

E-F BALANCE

46

WINDOW COMP.

47

48

ATSC
WINDOW
COMP.

TZC COMP.

49

50

VCC

DFCT

TM1

TG1

TRACKING
PHASE COMPENSATION

51

VCC

VEE

52

FZC COMP.

12

FEI

FEO

FOCUS
PHASE COMPENSATION

DFCT

FS4

45

3

FDFCT

FGD

FLB

6

7

O

-

FE

10

Pin Description

Pin

Symbol

No.

1 FEO O

2 FEI Focus error input. I
34FDFCT

FGD I

5 FLB

6 FE_O
7 FE_M

8 SRCH

9

TGU

10 TG2

11

FSET

12 TA_M I Tracking amplifier inverted input.

TA_O

13
14

SL_P

15 SL_M
16 SL_O O Sled drive output.
17 ISET I Connect an external capacitance to set the current

18

VCC

19 LOCK I

20 CLK

XLT

21
22 DATA

XRST I Reset input; resets at Low. (no pull-up resistance)

23
24 C. OUT

SENS1

25

I/O

Focus error amplifier output.
Connected internally to the window comparator input
for bias adjustment.

I

Capacitor connection pin for defect time constant.
Ground this pin through a capacitor for cutting the

focus servo high-frequency gain.
External time constant setting pin for boosting the

I

focus servo low-frequency.

O

Focus drive output.
I Focus amplifier inverted input.
I

External time constant setting pin for generating

focus search waveform.
I External time constant setting pin for switching track-

ing high-frequency gain.

External time constant setting pin for switching track-

I

ing high-frequency gain.

Peak frequency setting pin for focus and tracking

I

phase compensation amplifier.

O Tracking drive output.

I Sled amplifier non-inverted input.
I Sled amplifier inverted input.

which determines the Focus search, Track jump, and

Sled kick heights.
I Positive power supply.

The sled overrun prevention circuit operates when

this pin is Low. (no pull-up resistance)
I

Serial data transfer clock input from CPU.

(no pull-up resistance)
I

Latch input from CPU. (no pull-up resistance)

Serial data input from CPU. (no pull-up resistance)

I

O

Track number count signal output.

O

Outputs FZC, DFCT1, TZC, BALH, TGH, FOH,

ATSC, and others according to the command from

CPU.

Description

FR-155

Pin

Symbol

No.

26 SENS2 O

27

FOK

28

CC2 I

CC1

29

30 CB I Connection pin for defect bottom hold capacitor.
31 CP

32

RF_I I

33 RF_O O
34 RF_M

35 RFTC I

LD O APC amplifier output.

36
37 PD I APC amplifier input.

PD1

38
39

PD2

40

FE_BIAS

41

F

42IE
43 EI

44

VEE
45 TEO O
46 LPFI I Comparator input for balance adjustment.

47

TEI

ATSC

48
49

TZC
50

TDFCT
51

VC
52 FZC

I/O

Outputs DFCT2, MIRR, BALL, TGL, FOL, and
others according to the command from the CPU.

O Focus OK comparator output.

Input for the defect bottom hold output with capa­citance coupled.

O Defect bottom hold output. Connected internally to

the interruption comparator input.

Connection pin for MIRR hold capacitor.

I

MIRR comparator non-inverted input.
Input for the RF summing amplifier output with capa-

citance coupled.
RF sunning amplifier output. Eyepattern check point.
RF summing amplifier inverted input.

I

The RF amplifier gain is determined by the resistance
connected
between this pin and RFO pin.

External time constant setting pin during RF level
control.

I

RF I-V amplifier inverted input. Connect these pins
to the photo diode A + C and B + D pins.

I
I

Bias adjustment of focus error amplifier.
Leave this pin open for automatic adjustment.

I

F I-V and E I-V amplifier inverted input.
Connect these pins to photo diodes F and E.

—

I-V amplifier E gain adjustment.
(When not using automatic balance adjustment)

—

Negative power supply.
Tracking error amplifier output. E-F signal is output.

(Input from TEO through LPF)
Tracking error input.

I

Window comparator input for ATSC detection.

I
I

Tracking zero-cross comparator input.

I

Capacitor connection pin for defect time constant.

O (VCC + VEE)/2 direct voltage output.

I

Focus zero-cross comparator input.

Description

11

FR-155

Q102:LA6541D (CD 4-channel BTL Driver )

Vcc

Mute

VIN1

VG1

Vo1

Vo2

GND

GND

GND

Vo3

Vo4

VG2

VI2

Reg OUT

Reg IN

10

11

12

13

14

15

Pin No. Pin Name Description

Vcc

1

2

3

Level shift

1

Level shift

4

4

5

BTL AMP

1

BTL AMP

4

6

30

29

28

27

26

25

Vref

VIN4

VG4

Vo8

Vo7

1
2
3
4
5
6
7
8
9
10
11
12

GND

7

8

Vcc

24

23

GND

13
14
15
16

GND

9

22

17
18

BTL AMP

2

BTL AMP

3

21

20

Vo6

Vo5

19
20
21
22

Level shift

2

Level shift

3

19

18

VG3

VIN3

23
24
25
26

Regulator

RESET

17

16

CD

RES

27
28
29
30

VCC

Mute ON/OFF control for all BTLAMP outputs

VIN1

VG1 BTL AMP 1 input (for gain control)

Vo1

Vo2

GND GND (minimum electric potential)
GND GND (minimum electric potential)
GND GND (minimum electric potential)

V

O

V

O

VG2 BTL AMP 2 input (for gain control)

V

IN

REG OUT Connection for collector of external transistor (PNP); 5 V supply output

REG IN Connection for base of external transistor (PNP)

RES

C

V

IN

VG3 BTL AMP 3 input (for gain control)
V

O

V

O

GND GND (minimum electric potential)
GND GND (minimum electric potential)
GND GND (minimum electric potential)

V

O

V

O

VG4 BTL AMP 4 input (for gain control)

V

IN4

V

REF

V

CC

Power supply (shorted with pin 30)

BTL AMP 1 input

BTL AMP 1 output (non-inverting side)
BTL AMP 1 output (inverting side)

3 BTL AMP 2 output (inverting side)
4 BTL AMP 2 output (non-inverting side)

2 BTL AMP 2 input

Reset output
Reset output delay time setting (with capacitor)

D

3 BTL AMP 3 input

5 BTL AMP 3 output (non-inverting side)
6

BTL AMP 3 output (inverting side)

7 BTL AMP 4 output (inverting side)
8 BTL AMP 4 output (non-inverting side)

BTL AMP 4 input
Reference voltage input for level shift circuit
Power supply (shorted with pin 1)

(Function)

Q171:BU1923(RDS Decoder)

100k

(4)

MUX

VREF

VDD1

VSS1

VDD2

VSS2

120k

(3)

(5)

(6)

(12)

(11)

Analog
Power supply

Digital
power supply

(13) (14)

X1

XO

100k

PLL

57kHz

RDS/ARI

Reference

+

anti-aliasing

filter

clock

PLL

1187.5Hz

capacitor filter

8ch Switched

Bi-phase

decoder

Measurement

(10)

VSS3

circuit

CMP

(7)

Comparator

Differential

decoder

(9)

T2T1

(8)

(16)

(1)

(2)

Pin No.

RCLK

QUAL

RDATA

Symbol

QUAL

1

RDATA

2
3
4

VDD1

5
6
7
8
9

10

VDD2

11
12
13
14
15

RCLK

16

Vref

MUX

Vss1
Vss3
CMP

T2
T1

Vss2

XI

XO

(NC)

Pin name
Demodulator quality
Demodulator data
Reference voltage
Input
Analog power supply

GND
Comparator input
Test input

Digital power supply

Crystal oscillor

-
Demodulator clock

Function
Good data : High , bad data : Low
Refer to output data trimming
1/2 VDD1 (refer to input/output circuits)
Composite signal input

4.5V to 5.5V

­C-junction
Open or connected to ground

4.5V to 5.5V

Connects to 4.332MHz oscillator
(refer to input/output circuit)

-

1187.5Hz clock

12

Q752:M66004F (FL Tube Driver)

FR-155

Chip select

input

Shift clock

input

Serial data

input

Reset

input

Clock

input

Clock

output

CS

SCK

SDATA

RESET

XIN

XOUT

15

16

13

21

22

14

Serial
receive
circuit

Clock

generator

Display code
register

code
write

Code /

command

control

circuit

Display

control

register

RAM

write

code
select

Display controller

CG ROM

(35bit 160)

Decoder

CG RAM

(35bit 16)

Decoder

Segment
output circuit

Output port

(2bits)

Digit

output circuit

12

59

33

31

23

18

17

1

64

61

SEG00

SEG26

SEG27

SEG35

P0

P1

DIG00

DIG11

DIG12

DIG15

Segment
output

Output
ports

Digit
outputs

Pin No.

13
14

15
16

21,
22

1-12
61-64

23-31
33-59

17,18

19
60
22

32

Symbol Pin name Function

RESET Reset input This pin is used to initialize the internal state on the M66004
CS Chip select input

"L" : communication with the MCU is possible.
"H" : any instruction from teh MCU is neglected.

SCK Shift select input At the rising edge from "L"to"H" , input data is shifted.
SDATA Serial data input Character code or command data to display is input from MSB.

XIN,
XOUT

DIG00 -

Clock input
Clock output

Digit output

Set oscillation frequency

These pins are used to connect to digit pins of VFD.

DIG15

SEG00 -

Segment output

These pins are used to connect to segment pins of VFD.

SEG35
P0,PI Output port (static operation)

VCC1
VCC2
VSS

Positive power supply for internal logic.
Positive power supply for high-pressure-resistant output port.
GND

VP Negative power supply for VFD drive.

13

FR-155

Q751:BJ780GNK(FL T ube)

13G 12G 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G

Dp

SLEEP SOURCE C D TIMER M D M DCHC D
ONCE
W.DAY
W.END
REC

S.BASS

MUTING DIGITAL

LEVEL - SYNC

L

-

-

40-20-10 0 OVER

-

S2

-

6

2

R

1-1 2-1 3-1 4-1 5-1

1-2 2-2 3-2 4-2 5-2

1-3 2-3 3-3 4-3 5-3

1-4 2-4 3-4 4-4 5-4

1-5 2-5 3-5 4-5 5-5

1-6 2-6 3-6 4-6 5-6

1-7 2-7 3-7 4-7 5-7

(12G 1G)

(13G)

L

-

R

(14G)

Col-2

CHAIN
REPEAT
1 TR MEMORY
RANDOM

S1

B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22

-

40

B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11

C D

S3

DISC TRACK ELAPSED REMAIN TITLE
RDS MONO AUTO STEREO TUNED

C D

-

20

-

10 0 OVER

DUB TOC

14G

-

6

M D

S4

Col-1

M D

-

2

14G 13G 12G 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G

P1
P2
P3
P4
P5
P6
P7
P8

P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P27
P28
P29
P30
P31
P32
P33
P34
P35
P36

CHAIN

REPEAT

1 TR

MEMORY
RANDOM

DISC

TRACK

ELAPSED

REMAIN

TITLE

RDS

MONO

AUTO

STEREO

TUNED

S3

(CD)
(CD)

DUB

S4

(MD)
(MD)
(MD)

TOC

(TITLE)

-

-

-

-

-

-

-

-

-

-

-

B1

B8
B12
B19

S1

B2

B9
B13
B20

S2

B3
B10
B14
B21

OVER

B4
B11
B15
B22

SLEEP

B5

ONCE

B16

W.DAY

W.END

B6

REC

S.BASS
MUTING

B18

LEVEL-SYNC

B7

DIGITAL

-

B17

-

1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6

SOURCE

1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6

-

1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6

CD

1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6

TIMER

1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6
Dp

1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6

col 2

1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6

MD

1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6

-

1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6

MD

1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6

CD

1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6

col 1

1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
5-2
1-3
2-3
3-3
4-3
5-3
1-4
2-4
3-4
4-4
5-4
1-5
2-5
3-5
4-5
5-5
1-6
2-6
5-7
4-7
3-7
2-7
1-7
5-6
4-6
3-6

CH

14

MICROPROCESSOR CONNECTION DIAGRAM

Q751

FL TUBE

REMOTE

SENSOR

15

AC IN

Q753

P907

to POWER
SUPPLY

NAPS-6928

REC MODE SW

ST

LP2

LP4

YES

CD

STOP

CD

PLAY

REC

OTHER

INPUT

CD

EDIT

EJECT

/NO

MULTI JOG

MD MECHANISM

CN105

RC DATA

RC REQ

SHUT DOWN

MD REQ-2

15

MD CLK

F901

P913B

D901

Q901

POWER

16
17

MD RST

MD DATA-2

14 AMOT

15

CN102

RELAY DRIVE

2

5
6

RL901

F.F

MONO

MD

FM

/CDMDSTOPMDPLAY

/AM

ENERGY

SAVE

Q902

POWER

SWITCH

REW

STANDBY

T901

AMP

Q112

M66004F

DISPLAY

A.PRES

RL902

+5.6 V

Q752

FL TUBE
DRIVER

TIMER

MD

EJECT

MODE

Q391

BUFFER

TO POWER AMP

PC BOARD

(NAAF-6930)

+B

1G 14G

1 12,60 64

GRID

+5 V

+5.6 V

CD.DUB

Q203,Q204

MD MUT

Q112

Q112

CD POWER

CONTROL

RESCSSCK
131415

P1 P36

23 31,33 59

SEGMENT

DATA

16

1 ROTEN 2
2 ROTEN 1

3 FLRESET
4 GND
5 SHUT DOWN
6 RCREQ
7 +5 V

8 MD DATA
9 RC DATA
10 S CLK
11 FLCE
12 FL DATA
13 FL CLK
14 TXD
15 RXD
16 SQSO
17 SESN
18 SQCK
19 CD CLK
20 CD DATA

Q222 TC4052BP

REC LEVEL

CONTROL

SIGNAL 80

21 CD XLT

K 2 78

K 1 77

MD REC MODE 79

22 CD RESET

23 CD POWER

24 OPEN

X701 5MHz

+5.6 V

72

K 0 76

+5 V 75

+5 V 74

GND 71

GND 73

Q701

MPD780058GC

MICROPRCESSOR

25 CLOSE

26 AC POWER

27 OPEN SW

28 CLOSE SW

29 SENS 2

30 ECO LED

+5.6 V

IN2
IN1

TRAY MOTOR DRIVER

+5.6 V

+5 V 68

GND 67

CLOCK 70

CLOCK 69

MD REQ 66

31 REC VOL 1

32 REC VOL 2

33 GND

34 RC POWER

35 MD RESET

Q449 POWER

2
1
9

5

Q103 TA7291S

POFF 63

SCOR 65

RDS CLK 64

36 BAND 0

37 BAND 1

38 AM 10K

AMPLIFIRE

CONTROL

3

OUT2

7

OUT1

MD MECHA
AUX-MD IN
A MUTE
MD OUT

+5.6 V

D OUT 62

REMIN 61

39 RD SEN

40

Q705

RESET

IN

OUT

RESET 60

SYS OUT 59

SYS IN 58

VOL DOWN 57

VLO UP 56

RDS DATA 55

RDS SIG 54

PLLCE 53

SD 52

STEREO 51

MODEL 1 50

FREQCAL 49

C DATA 48

C CLK 47

TU MUT 46

FCE/VCE 45

REC MUT 44

AP LED 43

SEL MUT 42

CD MUT 41

9
8
7

Q351

6

CXD2589Q

5

CD DIGITAL

4

SIGNAL

79

PROCESSOR

19

Q704

Q371

TC74HCT00AF

BUFFER

Q372

TC7WU04FU

BUFFER

Q401

TC9273N-004

INPUT

Q703

RESET

SELECTOR

+5.6 V

Q447

TC9162AN

ACOUSTIC

PRESENCE SELECTOR

Q171 BU1923

Q253

TUNER MUTING

Q223,Q224

Q707

MUT

Q448

SEL MUT

Q702

CD MUT

57

Q112

20
21
22
24
25

27
23

26

15

19

30

Q101

CXA1992BR

RF SIGNAL

PROCESSING

SERV O AMP

28 3 13

Q102

LA6541D

FOCUS

/TRACKING

& SLED

/SPINDLE

MOTOR
DRIVER

14
13
12
11
10
18

15

21

MD REC
MUTING

Q443

,Q444

Q114 LD DRIVE

37

36
39

38
41
42

1361615

5

6
10
11

25
26

21
20

Q171

BU1923

VOLUME MOTOR

DRIVER

2
1

IN2
IN1

9

5

RDS

DECODER

ENERGY

SAVE

LED

TUNER UNIT

3

7

+5 V

OUT2
OUT1

PLLCE
SD
STEREO
SIGNAL
DAT A
CLK

LD

S.STOP

Q372

OUT

DIGITAL

OPTICAL

Q372

IN

VOLUME

MOTOR

M

RI

REMOTE

CONTROL

ACOUSTIC

PRESECE

LED

Q706

LED DRIVE

PD

E

A

B

C

F

FOCUSING
COIL

TRACKING
COIL

SLED

M

MOTOR

M

SPINDLE
MOTOR

OPEN
/CLOSE SW

M

TRAY
MOTOR

ANTENNA

FM

AM

FR-155