Hitachi AX-F300-WUN, AX-F300-W, AX-F300-EBS, HMD-R50, AX-F300-E Service Manual

SM0101

AXF300E
AXF300EBS
AXF300UC
AXF300W
AXF300WUN
HMDR50

CD MECHANISM CDV300DW
MD MECHANISM MDM-99X

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION
DANGERDANGER

DANGER

DANGERDANGER
Invisible laser radiation when open and interlocks failed or defeated. AVOID DIRECT EXPOSURE TO BEAM.Invisible laser radiation when open and interlocks failed or defeated. AVOID DIRECT EXPOSURE TO BEAM.

Invisible laser radiation when open and interlocks failed or defeated. AVOID DIRECT EXPOSURE TO BEAM.

Invisible laser radiation when open and interlocks failed or defeated. AVOID DIRECT EXPOSURE TO BEAM.Invisible laser radiation when open and interlocks failed or defeated. AVOID DIRECT EXPOSURE TO BEAM.

GEFAHRGEFAHR

GEFAHR

GEFAHRGEFAHR
Unsichtbare Laser-Strahlung wenn Interlock (Blockierung) funktionsuntüchtig oder abgeschaltet.Unsichtbare Laser-Strahlung wenn Interlock (Blockierung) funktionsuntüchtig oder abgeschaltet.

Unsichtbare Laser-Strahlung wenn Interlock (Blockierung) funktionsuntüchtig oder abgeschaltet.

Unsichtbare Laser-Strahlung wenn Interlock (Blockierung) funktionsuntüchtig oder abgeschaltet.Unsichtbare Laser-Strahlung wenn Interlock (Blockierung) funktionsuntüchtig oder abgeschaltet.
UNMITTELBAREN KONTAKT MIT DEM STRAHL UNBEDIGT VERMEIDEN.UNMITTELBAREN KONTAKT MIT DEM STRAHL UNBEDIGT VERMEIDEN.

UNMITTELBAREN KONTAKT MIT DEM STRAHL UNBEDIGT VERMEIDEN.

UNMITTELBAREN KONTAKT MIT DEM STRAHL UNBEDIGT VERMEIDEN.UNMITTELBAREN KONTAKT MIT DEM STRAHL UNBEDIGT VERMEIDEN.

DANGERDANGER

DANGER

DANGERDANGER
Faire très attention aux radiations émises par le faisceau laser invisible au défaillance du verrouillage.Faire très attention aux radiations émises par le faisceau laser invisible au défaillance du verrouillage.

Faire très attention aux radiations émises par le faisceau laser invisible au défaillance du verrouillage.

Faire très attention aux radiations émises par le faisceau laser invisible au défaillance du verrouillage.Faire très attention aux radiations émises par le faisceau laser invisible au défaillance du verrouillage.
NE JAMAIS S'EXPOSER DIRECTEMENT AU FAISCEAU.NE JAMAIS S'EXPOSER DIRECTEMENT AU FAISCEAU.

NE JAMAIS S'EXPOSER DIRECTEMENT AU FAISCEAU.

NE JAMAIS S'EXPOSER DIRECTEMENT AU FAISCEAU.NE JAMAIS S'EXPOSER DIRECTEMENT AU FAISCEAU.

VARNINGVARNING

VARNING

VARNINGVARNING
När apparaten öppnats och skyddsanordningen felar eller satts ur funktion förekommer osynlig laserstrålning.När apparaten öppnats och skyddsanordningen felar eller satts ur funktion förekommer osynlig laserstrålning.

När apparaten öppnats och skyddsanordningen felar eller satts ur funktion förekommer osynlig laserstrålning.

När apparaten öppnats och skyddsanordningen felar eller satts ur funktion förekommer osynlig laserstrålning.När apparaten öppnats och skyddsanordningen felar eller satts ur funktion förekommer osynlig laserstrålning.
UNDVIK DIREKT BESTRÅLNING.UNDVIK DIREKT BESTRÅLNING.

UNDVIK DIREKT BESTRÅLNING.

UNDVIK DIREKT BESTRÅLNING.UNDVIK DIREKT BESTRÅLNING.

ADVARSELADVARSEL

ADVARSEL

ADVARSELADVARSEL
Ñår apparatet åbnes og beskyttelsesanordningen ikke virker eller sættes un af funktion, forekommer der usynlig laserstråling.Ñår apparatet åbnes og beskyttelsesanordningen ikke virker eller sættes un af funktion, forekommer der usynlig laserstråling.

Ñår apparatet åbnes og beskyttelsesanordningen ikke virker eller sættes un af funktion, forekommer der usynlig laserstråling.

Ñår apparatet åbnes og beskyttelsesanordningen ikke virker eller sættes un af funktion, forekommer der usynlig laserstråling.Ñår apparatet åbnes og beskyttelsesanordningen ikke virker eller sættes un af funktion, forekommer der usynlig laserstråling.
UNDGÅ DIREKTE BESTRÅLING.UNDGÅ DIREKTE BESTRÅLING.

UNDGÅ DIREKTE BESTRÅLING.

UNDGÅ DIREKTE BESTRÅLING.UNDGÅ DIREKTE BESTRÅLING.

ADVARSELADVARSEL

ADVARSEL

ADVARSELADVARSEL
Når denne delen er apen som følge av at låsen er utkoplet eller ikke fungerer, eksisterer det usynlig laserstråling.Når denne delen er apen som følge av at låsen er utkoplet eller ikke fungerer, eksisterer det usynlig laserstråling.

Når denne delen er apen som følge av at låsen er utkoplet eller ikke fungerer, eksisterer det usynlig laserstråling.

Når denne delen er apen som følge av at låsen er utkoplet eller ikke fungerer, eksisterer det usynlig laserstråling.Når denne delen er apen som følge av at låsen er utkoplet eller ikke fungerer, eksisterer det usynlig laserstråling.
UNNGÅ Å BLI UTSATT FOR DIREKTE BESTRÅLING!UNNGÅ Å BLI UTSATT FOR DIREKTE BESTRÅLING!

UNNGÅ Å BLI UTSATT FOR DIREKTE BESTRÅLING!

UNNGÅ Å BLI UTSATT FOR DIREKTE BESTRÅLING!UNNGÅ Å BLI UTSATT FOR DIREKTE BESTRÅLING!

VARIOITSVARIOITS

VARIOITS

VARIOITSVARIOITS
Laite lähettää näkymätöntä lasersäteilyä, kun se avataan ja kun sisäiset turvalukot eivät toimi.Laite lähettää näkymätöntä lasersäteilyä, kun se avataan ja kun sisäiset turvalukot eivät toimi.

Laite lähettää näkymätöntä lasersäteilyä, kun se avataan ja kun sisäiset turvalukot eivät toimi.

Laite lähettää näkymätöntä lasersäteilyä, kun se avataan ja kun sisäiset turvalukot eivät toimi.Laite lähettää näkymätöntä lasersäteilyä, kun se avataan ja kun sisäiset turvalukot eivät toimi.
VARO JOUTUMASTA ALTTIIKSI SÄTEILYLLE.VARO JOUTUMASTA ALTTIIKSI SÄTEILYLLE.

VARO JOUTUMASTA ALTTIIKSI SÄTEILYLLE.

VARO JOUTUMASTA ALTTIIKSI SÄTEILYLLE.VARO JOUTUMASTA ALTTIIKSI SÄTEILYLLE.

CONTENTSCONTENTS

CONTENTS

CONTENTSCONTENTS

SPECIFICATIONS .....................................................................................................................................................3

SERVICE POINTS .....................................................................................................................................................4

ADJUSTMENTS ......................................................................................................................................................... 10

WIRING DIAGRAMS.................................................................................................................................................. 11

PRINTED WIRING BOARDS ....................................................................................................................................14

BLOCK DIAGRAM .....................................................................................................................................................25

CIRCUIT DIAGRAM...................................................................................................................................................29

EXPLODED VIEW...................................................................................................................................................... 53

REPLACEMENT PARTS LIST .................................................................................................................................. 56

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

MINI COMPONENT HI-FI SYSTEMMINI COMPONENT HI-FI SYSTEM

MINI COMPONENT HI-FI SYSTEM

MINI COMPONENT HI-FI SYSTEMMINI COMPONENT HI-FI SYSTEM

September 2000September 2000

September 2000

September 2000September 2000

HITHIT

HIT

HITHIT

AA

CHI CONSUMER PRCHI CONSUMER PR

A

CHI CONSUMER PR

AA

CHI CONSUMER PRCHI CONSUMER PR

ODUCTS (S)ODUCTS (S)

ODUCTS (S)

ODUCTS (S)ODUCTS (S)

AX-F300

Check that exposed parts are acceptably insulated from
the supply circuit before returning the repaired instrument
to the customer.

••

Checking methodChecking method

•

Checking method

••

Checking methodChecking method

Measure the resistance value between the both poles of
attachment cup (Power supply plug) and the exposed
parts (Parts such as Knob, Cover, etc. where the cus­tomer is easy to touch.) and check that the resistance
value is 500 kohms or more.

Insulation tester (DC 500V)

SAFETY PRECAUTIONSSAFETY PRECAUTIONS

SAFETY PRECAUTIONS

SAFETY PRECAUTIONSSAFETY PRECAUTIONS

The following precautions should be observed when servicing.

1. Since many parts in the unit have special safety-related characteristics, always use genuine Hitachi’s replacement
parts. Especially critical parts in the power circuit block should not be replaced with other makers. Critical parts
are marked with in the circuit diagram and printed wiring board.

2. Before returning a repaired unit to the customer, the service technician must thoroughly test the unit to ascertain
that it is completely safe to operate without danger of electrical shock.

INSTRUMENT

(Exposed part)

– 2 –

SPECIFICATIONS

 AM-FM TUNER AMPLIFIER (HTA-R100)

Reception frequency band: UC (FM:87.5~108.0MHz(100kHz step) AM:520~1710kHz(10kHz step))

E,EBS (FM:87.50~108.00MHz(50kHz step) MW:522~1611kHz(9kHz step) LW:153~281kHz(1kHz step))
W (FM:87.50~108.00MHz(50kHz step) AM:522~1611kHz(9kHz step) 520~1710kHz(10kHz step))
WUN (FM:76.00~108.00MHz(50kHz step) AM:522~1629kHz(9kHz step) 520~1710kHz(10kHz step))

Rated output power: 40 W + 40 W (6W/ohms, 1kHz, T.H.D. 10%)
Audio input / output jacks: CD input jacks, TAPE input/output jacks, AUX input jacks, MD input/output jacks,

PRE OUT (MONO) jack, headphones jack

Power supply: E,EBS : AC 230 V, 50 Hz

UC : AC 120 V, 60 Hz

W,WUN : AC 110~127 V, 50/60 Hz AC 220~240 V, 50/60 Hz
Power consumption: 74 W (ECO-ON mode : 0.8 W)
Maximum external dimensions: 210 (W) ∞ 96.5 (H) ∞ 350 (D) mm (including f eet, controls and terminals)
Weight: 4.5 kg

 CD CHANGER (DA-R100)

Sampling frequency: 44.1kHz
Optical source: Semiconductor
Power supply: E,EBS : AC 230 V, 50 Hz

UC : AC 120 V, 60 Hz

W,WUN : AC 110~127 V, 50/60 Hz AC 220~240 V, 50/60 Hz
Power consumption: 12 W
Maximum external dimensions: 210 (W) ∞ 96.5 (H) ∞ 340 (D) mm (including f eet, controls and terminals)
Weight: 3.2 kg

AX-F300

 SPEAKER (HS-R30)

System: 2 way BASS Reflex Speaker System
Woofer: 10 cm ∞ 1
Tweeter: 5 cm ∞ 1
Impedance: 6 ohms
Maximum external dimensions: 150 (W) ∞ 275 (H) ∞ 227 (D) mm
Weight: 3.0 kg (1 speaker)

 TIMER

System: Digital Quartz Clock
Display Format: 12-hour cycle (UC DEST) 24-hour cycle (other DEST)
Timer Accuracy: Within 60 seconds at monthly rate

 REMOTE CONTROL

Remote control system: Infrared pulse
Power supply: Two DC 1.5V R6P/AA batter ies
Maximum external dimensions: 54 (W) ∞ 27 (H) ∞ 172.5 (D) mm
Weight: 145g (including batteries)

 MINI DISC RECORDER (HMD-R50)

Type: MiniDisc digital audio system
Wow & flutter: Below measurable limits (±0.001% W. peak or less)
Sampling frequency: 44.1 kHz
Recording method: Magnetic modulation overwriting
Light source: Semiconductor Laser
Power supply: E,EBS : AC 230 V, 50 Hz

UC : AC 120 V, 60 Hz

W,WUN : AC 110~127 V, 50/60 Hz AC 220~240 V, 50/60 Hz
Power consumption: 14 W
Maximum external dimensions: 210 (width) ∞ 96.5 (height) ∞ 320 (depth) mm (including f eet, controls and terminals)
Weight: 2.6 kg

Specifications are subject to change or performance improvement without notice.

– 3 –

AX-F300

SERVICE POINTS

 AM-FM TUNER AMPLIFIER (HTA-R100)

1. Removal of Cover

(1) Remove 2 screws from both sides.
(2) Remove 5 screws from the rear plate.

2. Removal of Front Panel

(1) Remove 4 screws from the bottom side of the front panel.
(2) Remove 2 screws from both sides.
(3) Remove screw to remove the ground wire. (E DEST ONLY).
(4) Remove the connectors , , and .
(5) Remove the Front Panel by releasing the pawl on both sides.

Pawl

(E DEST ONLY)

Pawl

– 4 –

3. Removal of Rear Panel

(1) Remove 9 screws from the rear panel.
(2) Remove the connector .

4. Removal of Front P. W. Board

(1) Remove 2 screws and then the tone P. W. board.
(2) Remove the volume knob assy, remove the nut and remove the volume P. W. board.
(3) Remove 9 screws .

AX-F300

Control

Nut

5. Removal of Main P. W. Board

(1) Lift up the TU P. W. board and remove it from the main P. W. board.
(2) Remove 2 screws from the top side of the main P. W. board.
(3) Remove 4 screws from the bottom side of the chassis.
(4) Remove the 4 P. W. board holders from the chassis via the bottom side of the chassis.

TU P. W. board

– 5 –

AX-F300

 CD CHANGER (DA-R100)

1. Removal of Cover

(1) Remove 2 screws from both sides.
(2) Remove 3 screws

2. Removal of Front Panel

(1) Remove 2 screws from both sides.
(2) Remove 3 screws from the bottom side of the front panel.
(3) Remove the Front Panel by releasing the pawl on both sides.
(4) Remove the flat cable from the main P. W. board.

from the rear panel.

Pawl

3. Removal of Rear Panel

(1) Remove 7 screws from the rear panel.

Pawl

– 6 –

4. Removal of CD Mechanical-Unit Assembly, Main P. W. Board and Motor P. W. Board

(1) Remove one each of screws and from the main P. W. board on the side.
(2) Remove 2 screws from the top side of the mechanical unit.
(3) Remove 2 screws from the bottom side of the chassis.
(4) Remove the connectors
(5) Remove the connector
(6) Remove 1 screw from the top side of the P. T. cover and detach the power transformer from the chassis.
(7) Remove 1 screw of the ground wire.
(8) Remove the connectors , and of the motor P. W. board from the main P. W. board.
(9) Remove 2 screws from the motor P. W. board.
(10)Remove the solder from the four places of the soldering section of the motor.
(11)Remove the connectors PG402 and 403 of the motor P. W. board.

, , and of the main P. W. board.

of the P. T. P. W. board.

AX-F300

PG402

PG403

– 7 –

AX-F300

 MINI DISC RECORDER (HMD-R50)

1. Removal of Cover

(1) Remove 2 screws from both sides.
(2) Remove 6 screws

2. Removal of Front Panel

(1) Remove 2 screws from both sides.
(2) Remove 4 screws from the bottom side of the front panel.
(3) Remove the Front Panel by releasing the pawl on both sides.
(4) Remove the flat cable from the main P. W. board.

from the rear panel.

Pawl

FLAT
CABLE

3. Removal of Rear Panel

(1) Remove 7 screws from the rear panel.

Pawl

– 8 –

4. Removal of MD Mechanical-Unit Assembly

(1) Remove 4 screws .
(2) Remove the flat cable from the main P. W. board.

5. Removal of Main P. W. Board

(1) Lift up the I/O P. W. board and remove if from the main P. W. board.
(2) Remove 6 screws .

FLAT
CABLE

AX-F300

I/O P. W. Board

– 9 –

AX-F300

ADJUSTMENTS

Measuring Instruments Necessary for Adjustments

• DC voltmeter

• Screwdrivers for adjustments

Before adjustments, perform the following setting in the receiver section (HTA-R100).

Note: Making adjustments without performing the following setting may result in damage of power transistors.
(1) Power switch : OFF
(2) Volume knob : MIN
(3) Function switch : AUX
(4) Speaker : Open
(5) VR502L/R : Minimum

1. Idle Current Adjustment

(1) Connect the DC voltmeter to PG502. (Refer to the connection diagram.)
(2) Turn on the power and adjust VR502L (on the left) and VR502R (on the right) so that the measured value of the voltme-

ter can be within the range of 2 ± 0.5 mV.

DC Voltmeter

VR502R VR502L

PG502

DC Voltmeter

+ –– +

PRE AMP PWB

– 10 –

WIRING DIAGRAMS

 AM-FM TUNER AMPLIFIER (HTA-R100)

AX-F300

PRE-AMP PWB

CN301

PG503

CN101A

CN502BCN501B

PG401

TONE PWB

(LUG TERMINAL)

TU PWB

CN504

SPEAKER PWB

MAIN PWB

P3A

W415

CN402

CN503 CN401

CN101B

PG301

VOLUME PWB

W101

CN505

PG003PG002

P2A

*P4A/P6A

CN505

*P9A

*10A

CN502ACN501A

PG504

CN103B

PG402

CN104B

CN104A CN103A

*P8B

PG001

P2B

W002(GRY)

W010(YEL)

W003(BLUE)

W005(ORG) W009(RED)

*P5A P3B

*P4B/

P7A

CN002 CN003

PT PWB

DISP PWB

W001

(LUG TERMINAL)

(W/WUN ONLY)

P9B P8B

P10B

P6B P7B

P5B

W004(ORG)

W007

(BRK)

W006

(BRN)

VOLTAGE SELECTOR P.W.B

AC

CORD

AP1

– 11 –

AX-F300

 CD CHANGER (DA-R100)

(SOLDER)

(SOLDER)

3-DISC

CHANGER

AC CORD

AP1

PT PWB

PG421

VIDEO PWB

(W/WUN ONLY)

W402A

PG001

W403A

W401A

PG404

1

1

(BRN)

CN401

1

5P TXL CONN

5P PH CONN

1

PG401

W403B

W403(RED)

W402B

W402(YEL)

W401B

W401(BRN)

(W/WUN ONLY)

VIDEO MODULE

1

1

1

PG101

VOL-SEL PWB

(W/WUN ONLY)

1

PG103

PG102

6P MX CONN

8P PH CONN

7P PH CONN

2P TXL CONN

CN421

(WN/WUN ONLY)

5P MX CONN

1

1

CN452

1

1

(BRN)

PG402

PG403

1

CN453

PG454

(WN/WUN ONLY)

CN451

1

1

PG801

18P BTEM CONN

18P BTEM CONN

6P MX CONN

MOTOR PWB

W101

29P FFC CABLE

8P BTEM CONN

FL PWB

CN901

(WN/WUN ONLY)

PG802

1

1

(BLK)

MAIN PWB

PG901

(W/WUN ONLY)

1

(PINK)

1

CN404

PG452

11

PG453

1

PG451

4P TXL CONN (W/WUN ONLY)

– 12 –

 MINI DISC RECORDER (HMD-R50)

AC CORD

PG002

PT PWB

PG001

CN002-2

RED WHT

CN002-1

MAIN PWB

PG301 CN301

CN501A

B to B

I/O

AX-F300

PWB

CN101

PG101

#W201

CN701B

CN1501

MD MECHA UNIT

FL PWB

CN701A

CN401

#073
28P FFC
CABLE

– 13 –

AX-F300

PRINTED WIRING BOARDS

• AM-FM TUNER AMPLIFIER (HTA-R100)

MAIN PWB
Component Side

–14–

Soldering Side

AX-F300

–15–

AX-F300

PRE-AMP PWB
Component Side Soldering Side

PT PWB
Component Side Soldering Side

–16–

SP PWB
Component Side SolderingSide

AX-F300

TONE PWB
Component Side SolderingSide

VOL PWB
Component Side SolderingSide

–17–

AX-F300

DISPLAY PWB

Soldering Side

Component Side

TU PWB

Soldering Side

Component Side

– 18 –

• CD CHANGER (DA-R100)

MAIN PWB

Soldering Side

Component Side

AX-F300

FL PWB

Soldering Side

Component Side

– 19 –

AX-F300

MONITOR PWB

Soldering Side

Component Side

PT PWB

Component Side Soldering Side

– 20 –

• MINI DISC RECORDER (HMD-R50)

MAIN PWB
Component Side

AX-F300

– 21 –

AX-F300

Soldering Side

– 22 –

DISPLA Y PWB

Component Side Soldering Side

AX-F300

– 23 –

AX-F300

I/O PWB
Component Side Soldering Side

POWER PWB
Component Side Soldering Side

Component Side Soldering Side

– 24 –

BLOCK DIAGRAM

 AM-FM TUNER AMPLIFIER (HTA-R100)

SPEAKER

PRE OUT

HEADFHOME

AX-F300

AP1

Q518

AF AMP

DTC323TK

Q511L/R

Q507L/R ~

Q501L/R ~ Q506L/R

PRE-VOLTAGE AMP

SDB

IC402

BA4558F

POWER AMP

RV404

M

IC403

RL001

MUTE

PROTECTION

MAIN VOLUME

BA6208F

MOTOR DRIVER

RL002

PT001 TRANSFOMER

D010

D009

D001

IC002

S4VB20

RECTIFIER

KA7812

VOLT STAB.

+12V

Q007

2SB647C

+21V

ZD003

-12V

MTZ-J12C

VOLT STAB

Q001

IC003

2SB647C

KA7805

VOLT STAB.

+5V

PT002 SUB-TRANSFORMER

KTC3199

IN4002

IN4002

VOLT STAB

Q004

TO

DISPLAY

Q005

POWER-DOWN

D018

D001 ~ D004

IC001

RECTIFIER

KIA7805

+5V

MICON

DTC114

Q002,003

RL001

RL002

**

IC261

TA2040F

AM STERO

MD

(REC IN)

TAPE

(PLAY/IN)

MD

IC401

BA4558F

IC302

IC301

CD

BASS/TREBLE

TONE CIRCUIT

BA4558F

LINE-AMP

LC78211

FUNCTION

TAPE

AUX

MD

IC601

HD6433726H

MICRO-COMPUTER

FL

DISPLAY

IC603

BR9040F

*

*1

EEPROM

PLL

IC101

LC72131M

DTA114EK

DIC114TK

Q151

Q152

Q153

BL1

MW RF

BLOCK

*2

AMP

AM LOOP

– 25 –

Q514

LW/MW SWITCH

BL1

BLOCK

MW/LW RF

IC201

Q102

FE101

FM

LA1838

2SK161

TUNER PACK

AM RF / FM IF

MULTIPLEXER

Q103

2SC2058S

FM IF AMP

FM RF

ANT

RDS

IC251

LC72720NM

DEMODULATOR

(WUN)

UNIERSAL

(W)

ASIA

UK

(EBS)

(E)

EUROPE

USA

(UC)

DEST

SYM

NO.

IC251

IC261

*1 *2 *2 *1 *1

BL1

Q151-Q154

AX-F300

 CD CHANGER (DA-R100)

DIGITAL

OPTICAL

OUT

TOTX178A

Q301L,R

DTC323TK

AUDIO OUT

MUTE

IC302

AUDIO

P.ON

MUTE

BA15218F

C-BUS

HITACHI

*VIDEO OUT

D401

IN4002

D402

IN4002

-BISTAB

D403

C402

PR401

2SB647

IN4002

ICP-N5

CE-M

220/50

IC103

AN8389S

DRIVER

Q101

2SA933S

DRIVE

LASER

Q302L,R

DTC323TK

CD

MUTE

DAC

IC301

PCM1725U

DSP

IC102

MN662720RB

IC101

PRE AMP

AN8808SB

47

R126

A-MUTE

TO

DRIVER

Q411

2SA1129

+6V+

TRS

5V

IC451

SW

µ-CON

5V

+

TO µ-CON

MN1874823

*NTSC/PAL SW

5V
Ð

IC451

M

CAM

-B1

LB1648

MOTOR DRIVER

M

TRAY

MOTOR

TO FL

TO FL

MOTOR

*

*

*MIC

5V
+

3.3V
+

FL DISPLAY

CIRCUIT

-B2

*IC901

RD-DVK020

VCD MODULE

MIC

VOLUME

SPÐSP+SPÐSP

SPIN

MOTOR P.W.B

M

MOTOR

+

M

SLIDE

MOTOR

VCC

EAB

1/2 VCC

Ð+Ð+Ð+Ð+Ð

Ð

Ð

+

F

C

+

LD

VR

LAND

SHORT

HOLOGRAM

LASER UNIT

FO

GND

MON

(Ð)FO(+)
FO

LTO1141M

+

TA

TA

FO

SW102

(Ð)TR(+)
TR

CAM SW

SW101

SW103

SW104

CAM SW

SW105

SW106

SW107

SW108

ACTUATOR

– 26 –

 MINI DISC RECORDER (HMD-R50)

K30

J1

LINE OUT

AX-F300

PT001

IC303

BA4510

MUTE

Q305

Q306

P.DOWN

Q105,106

DETECTOR

1

7

8

LINE AMP .

+6V

MD MECHA UNIT

POWER TRANSFORMER

F101

VOLTAGE

REGULATOR

F102

KIA 7805

IC102 (+5V)

IC403

TC74HC

3V/5V

T04AF

V
N

CO ERTER

+6V

VOLTAGE

+5V

Q101

REGULATOR

FL

POWER

CIRCUIT

IC 101 (+6V)

uPC2406AHF

VOLTAGE

REGULATOR

FL DISPLAYFL VP(-28V
)

(+3V)

Q102,103

LED

D702

POWER ON Ind.

IC302

BA4510

LINE AMP .

IC301

BA4510

BUFFER AMP .

K30

J1

LINE IN

IC402

RESET

M51953A

FL DISPLAY

REC

IC304

LEVEL

IC501

8

5

3

+6V

SELECTOR

TC74HC00AF

IC502

TC74HCU04AF

OPT.1

RX501

IN

OPT.2

IC502

RX502

IC502

TC74HCU04AF

TC74HCU04AF

OPT.OUT

MUTE

TX501

Q501

HITACHI BUS

FL701

Q661

BUFFER

K60

K60

J2

J1

IC701

M66004FP

RE701

FL DRIVER

G
JO

SWITCH

MICROCOMPUTER

M30622MAA-855GP

KEY IN

BLOCK

S701~706,S708~709

S710

INPUT

IR701

REMOTE

SELECT

SENSOR

– 27 –

IC401

AX-F300

– 28 –

AX-F300

CIRCUIT DIAGRAM

• AM-FM TUNER AMPLIFIER (HTA-R100)

–29– –30– –31–

AX-F300

–32– –33– –34–

AX-F300

–35– –36– –37–

AX-F300

–38– –39– –40–

AX-F300

• CD CHANGER (DA-R100)

–41– –42– –43–

AX-F300

–44– –45– –46–

AX-F300

• MINI DISC RECORDER (HMD-R50)

–47– –48– –49–

EXPLODED VIEW

 AM-FM TUNER AMPLIFIER (HTA-R100)

091

control

Remote

AX-F300

215

AP1

TU PWB

215

216

PRE AMP PWB

105

221

PT001

213

215

214

UC

101

229

E, BS

W, UN

102

103

MAIN PWB

Speaker

213

212

097

100

111

113

A

B

219

218

A

B

100

111

219

115

222

098

210

211

DISPLAY PWB

VOLUME PWB

133

UC

094

095

B

215

224

222

A

A

069

090

E, BS

051UC052

W, UN

053

133

B

057

081

223

082

– 53 –

AX-F300

 CD CHANGER (DA-R100)

EXPLODED VIEW

AP1

MAIN PWB

086

102

217

103

217

215

PT PWB

217

214

098

PT001

225

217

218

217

W/WUN

105

099

217

116

221

213

A

096

219

212

A
B

220

222

B

A

081

221

A

088

089

090

MOTOR PWB

211

111

071

211

229

W/WUN

074

FL PWB

064

B

069

W/WUN

070

UC/E/EBS

216

– 54 –

W/WUN

051

056

B

229

056

052

UC/E/EBS

 MINI DISC RECORDER (HMD-R50)

EXPLODED VIEW

94

Voltage

Selector P.W.B

AX-F300

PT001

102

I/O PWB

(E/EBS)

AC OUTLET

AP1

(EBS ONLY)

201

99

104

98

73

55

98

104

(W/WUN)

61

MAIN PWB

96

101

101

D

91

(UC)

66

70

61

AC OUTLET (UC)

(E/EBS)

C

67

92

59

C

D

54

A

B

52

51

A

B

68

67

71

103

90

A

103

91

53

701

74

FL DISP PWB

35

31

93

1

A

72

33

23

B

30

41

21

92

69

25

93

39

B

37

56

– 55 –

57

THE UPDATED PARTS LIST

FOR THIS MODEL IS

AVAILABLE ON ESTA

Hitachi, Ltd. Tokyo, Japan

International Sales Division

THE HITACHI ATAGO BUILDING,

No. 15 –12 Nishi Shinbashi, 2 – Chome,

Minato – Ku, Tokyo 105-8430, Japan.

Tel: [phone]

HITACHI EUROPE LTD,

Whitebrook Park
Lower Cookham Road
Maidenhead
Berkshire
SL6 8YA

UNITED KINGDOM

Tel: [phone]
Fax: [phone]
Email: [e-mail]

HITACHI EUROPE GmbH

Munich Office
Dornacher Strasse 3
D-85622 Feldkirchen bei München

GERMANY

Tel: [phone]
Fax: [phone]
Hotline: [phone] (12ct/min)
Email: [e-mail]

HITACHI EUROPE srl

Via Tommaso Gulli N.39, 20147
Milano, Italia

ITALY

Tel: [phone]
Tel: [phone] Servizio Clienti
Fax: [phone]

Email: [e-mail]

HITACHI EUROPE S.A.S

Lyon Office
B.P. 45, 69671 BRON CEDEX
FRANCE
Tel: [phone]
Fax: [phone]
Email: [e-mail]

HITACH EUROPE AB

Egebækgård
Egebækvej 98
DK-2850 Nærum

DENMARK

Tel: [phone]
Fax: [phone]
Email: [e-mail]

Hitachi Europe Ltd

Bergensesteenweg 421
1600 Sint- Pieters-Leeuw

BELGIUM

Tel: [phone]
Fax: [phone]
Email: [e-mail]

www.hitachidigitalmedia.com

HITACHI EUROPE S.A.

364 Kifissias Ave. & 1, Delfon Str.
152 33 Chalandri
Athens

GREECE

Tel: [phone]
Fax: [phone]
Email: [e-mail]

HITACHI EUROPE S.A.

Gran Via Carlos III, 101- 1
08028 Barcelona

SPAIN

Tel: [phone]
Fax: [phone]
Email: [e-mail]

HITACHI HOME ELECTRONICS (NORDIC) AB
Box 77 S-164 94 Kista

SWEDEN

Tel: [phone]
Fax: [phone]
Email: [e-mail]

HITACHI EUROPE LTD (Norway) AB
STRANDVEIEN 18
1366 Lysaker
NORWAY
Tel: [phone]
Fax: [phone]
Email: [e-mail]

HITACHI EUROPE AB

Neopoli / Niemenkatu 73
FIN-15140 Lahti

FINLAND

Tel : [phone]
Fax: [phone]
Email: [e-mail]

HITACHI EUROPE LTD

Na Sychrove 975/8
101 27 Praha 10 – Bohdalec

CZECH REPUBLIC

Tel: [phone]
Fax: [phone]
Email: [e-mail]