Hitachi TRKP 6 E Service Manual

Page 1

§) HITACHI
SERVICE MANUAL

I KEY TO ILLUSTRATIONS

® FUNCTION SELECTOR
® TONE CONTROL
(9 VOLUME CONTROL
® PAUSE BUTTON
(5) STOP/EJECT BUTTON

© FAST FORWARD BUTTON
(D REWIND BUTTON

. PLAYBACK BUTTON

(9 RECORD BUTTON

FM STEREO INDICATOR
® BAND SELECTOR

SQ

®®ee@@@@@®

TY No. 532 E

TRK-P6E

E, E (BS)

TUE=21IW=5IZ

CONTENTS

KEY TO ILLUSTRATIONS

SPECIFICATIONS..." 2
DISASSEMBLY .. 3
ADJUSTMENT ..................... . 4
ADJUSTMENT PARTS LOCATION ............. 4
INSPECTION OF MECHANISM... 7
LUBRICATION ...................... 8
DIAL CORD STRINGING 8
CIRCUIT DIAGRAM ....... 9
PRINTED WIRING BOARD . 1 1
BLOCK DIAGRAM ......... . 12
EXPLODED VIEW ........................................ 13
KREPLACEMENT PARTS LIST ...................... 15

TELESCOPIC ANTENNA (AERIAL)
TUNING KNOB

SPEAKERS

HEADPHONES SOCKET

INNER MICROPHONE (MONO)

FM PRESET TUNING KNOBS

FM PRESET TUNING KNOBS COVER
FM PRESET TUNING INDICATORS
FM MANUAL BUTTON

FM PRESET BUTTONS

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.

RADIO CASSETTE TAPE RECORDER

August 1986

TOYOKAWA WORKS

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HITACHI TRK-P6E

SAFETY PRECAUTION

The following precautions should be observed when servicing.
1. Since many parts in the unit have special safety»related characteristics, always use genuine Hitachis re-

placement parts.

Especially critical parts in the power circuit block should not be replaced with other makers: Critical
parts are marked with A: 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.

SPECIFICATIONS
GENERAL SECTION

Semiconductors: le: 5

Transistors: 5

Diodes: 11

LEDs: 1

Varicap: 3

AC: 240V 50 Hz (for E (88))
AC: 220V, 50 Hz (for E)
DC: 12V (IEC R20 x 8 or

Power Supply:

equivalent)
Power (Mains)
Consumption: 18W
Power output: 3:5W/CH x 2 (10% T.H.D. DC)
Speakers: 12 cm, 4 ohms x 2

2 cm. 300 ohms x 2

Dimensions: 50.5(W)><20:9(H)><15.6(D) cm
Weight 4.0 kg (with batteries)
TUNER SECTION

FM/SW/MW/LW 4-band
superheterodyne

FM 87.5 to 108 MHz

SW: 6 to 18 MHz

MW: 530 to 1,605 kHz

LW: 150 to 285 kHz

Circuit System

Tuning Range:

Sensitivity: FM: 13 dB (pra), 5 dB max.)
SW: 30 dB (pm), 20 dB (max)
MW: 50 dB (pra), 40 dB (max)
LW: 55 dB (pra), 48 dB (max)

Intermediate

Frequency: FM: 10.7 MHz

SW/MW/LW: 465 kHz

Antennas (Aerials): FM/SW: Telescopic antenna

(aerial)
MW/LW: Ferrite-core antenna
(aerial)
TAPE RECORDER SECTION
Tape: Cassette tape (030, 60. 90)
Tape Speed: 4.75 cm/s
Recording System: AC bias, 58 kHz
Erasing System: Magnet

Frequency Response: Normal: 60 to 10,000 HZ
S/N (Signal to

Noise Ratio): 40 dB

Wow 8| Flutter: 0.25% (WRMS)

Crosstalk: Between tracks: 60 dB
Between channels: 30 dB

Erase Ratio: 60 dB

Input sensitivity and

Impedance: CD/Linesin: 600 mV, 50 kohms

Ouput Level and

load Impedance: Headphones: 8 ohms~100 ohms
Distortion: 3%

Motor: DC micromotor