Hitachi CP 7 EX Service Manual
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Extracted text from Hitachi CP 7 EX Service Manual (Ocr-read)
Page 1
@HITACHI
SERVICE MANUAL
Semiconductors :
Power Supply :
Power Consumption :
Power Output :
Tape :
Track System :
Tape Speed :
TK No. 1883E
CP-7EX
CONTENTS
Block diagram ....................
Description of new circuit
Disassembly
Description of new mechanism. 7
Adjustment ................ 11
inspection of mechanism. 12
Lubrication 12
Schematic Iagram. 13
Circuit board diagram. 15
Exploded view ......... .
Replacement parts list 19
KEY TO ILLUSTRATIONS
@ HEADPHONES SOCKETS (A, B)
® VOLUME CONTROL
TAPE SELECTOR
@ PLAY BUTTON
G) REVERSE BUTTON
@ FAST FORWARD/REWIND BUTTON
© STOP BUTTON
@ DC IN 3v SOCKET
(5) OPERATION INDICATOR
SPECIFICATIONS
le : 2 Frequency Response : Normal : 40-12000 Hz
Transistors : 9 Metal : 40-16r000 Hz
Diodes : 3 Signal to Noise Ratio: 50dB
LED : 1 Wow and Flutter : 0.2% (WRMS)
DC : 3V llEC RG(AA cell)X2 or Crosstalk : Between tracks : 70 dB
equivalent] Between channels : 50 dB
IEC R14(C~ call)><2 or
equivalenti..Use earring case
AC : Use optional AC adaptoriBV)
145mA (with no signal)
50mW (25mW+25mW)M.THD10%
Cassette tape
4 track 2 channel stereo
4.7SCm/s
Output Load Impedance :
Distortion
Motor :
Fast Forwa
Dimensions :
Weight :
Headphone : 33 ohms (8-100
ohms suitable)
: 3%
Electronically controlled DC motor
135 sec. (using C~60)
108(W)X77(H)X23.5(D)mrn
2909 (with batteries)
rd or Rewind Time:
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
STEREO CASSETTE PLAYER
February 1983
TOKAI WORKS