Hitachi TRK 7910 E Schematic
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Extracted text from Hitachi TRK 7910 E Schematic (Ocr-read)
Page 1
@ HITACHI TK No.1679E
SERVICE MANUAL TRK-79OEIEIBSIIEZ
CONTENTS
SPECIFICATIONS ................................................... 2
DISASSEMBLY ......................................................... 2
DIAL CORD STRINGING ....................................... 4
LUBRICATION ......................................................... 4
INSPECTION ............................................................ 4
ADJUSTMENT ......................................................... 5
SCHEMATIC DIAGRAM
Tuner section ............................................................ 7
Tape recorder section ................................................ 11
CIRCUIT BOARD DIAGRAM
Tuner section ............................................................ 9
Tape recorder section ................................................ 13
WIRING DIAGRAM ................................................... 15
REPLACEMENT PARTS LIST .............................. 18
EXPLODED VIEW ...................................................... 19
KEY TO ILLUSTRATIONS
BUILT IN MICROPHONE(RIGHT)
AFC SWITCH
FM MODE SWITCH
TAPE COUNTOR
LED LEVEL INDICATORS
FM STEREO INDICATOR
SLEEP OFF/SNOOZE BUTTON
SLEEP ON BUTTON
TIMER BUTTON
TIME SET BUTTON
MINUTE SET BUTTON
HOUR SET BUTTON
BUILT IN MICROPHONE(LEFT)
TIME DISPLAY
AC POWER (MAINS) INDICATOR [E(BS)]
BALANCE CONTROL
BASS CONTROL
TREBLE CONTROL
VOLUME CONTROL
PAUSE BUTTON
FAST FORWARD BUTTON
FUNCTION SELECTOR
REWIND BUTTON
TAPE SELECTOR
PLAYBACK BUTTON
RECORD BUTTON
POWER SWITCH
STOP/EJECT BUTTON
TELESCOPIC ANTENNA(AER|AL)
BAND SELECTOR
TUNING CONTROL
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--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 replacement
parts. Especially critical parts in the power circuit block should not be replaced with other makes.
Critical parts are marked with Am the schematic diagram and circuit board diagram.
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 AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
CASSETTE TAPE RECORDER WITH FM/SW/MW/LW RADIO