Alpine al 80 service manual

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alpine al 80 service manual

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Page 1

SERVICE MANUAL [:-puge

STEREO 80
-SEEN- l
DECK

ALPINE ELECTRONICS INC.

Page 2

- L-80

Contents
Specifications ................................................................... 2
Parts Location and Disassembly Instructions ............................................ 3 to 5
Adjustment Procedures .......................................................... 6 to 8
Adjustment Locations ' ......................................................... 9 to 10
Block Diagram ............................................................. 11 to 12 -
Replacement of Mechanical Parts ................................................. 13 to 14
Trouble Shooting Guide ....................................................... 14 to 18
Parts Layout on P.C. Boards .................................................... 19 to 26
Wiring Diagram ............................................................. 27 to 28
Schematic Diagram (1/2) ...................................................... 29 to 30
Schematic Diagram (2/2) ...................................................... 31 to 32
Electrical Parts List ......................................................... 33 to 47
Packing Method View ............................................................. 48
Packing Assembly Parts List ........................................................ 48
Cabinet Assembly Parts List ..... 48 to 49
Exploded View (Cabinet) ...................................................... 50 to 51
Exploded View (Cassette Deck) .................................................. 52 to 53
Cassette Deck Assembly Parts List .................................................... 54
Semi-Conductor Lead Identifications .............................................. 55 to 57
Specrflcations
Power Consumption ........................................................... 35W
Power Source ...................... 110/127/220/240V AC 50/60 Hz (For Multi Voltage Model only)
120V AC 60 Hz (For Single Voltage Model only)
Tape Speed (MTT-111) ................................................ 4.78 cm/sec. t2%
Wow & Flutter (J15, WRMS, MTT«111) ............................................. 0.05%
FF/REW Time (C-GO) ........................................................ 100 sec.
Frequency Response (Metal) (:3 dB) ....................................... 20 HZ to 19 KHz
Take-Up Torque ....................................................... 35 - 60 gcrn.
Output Level/Impedance ................................ Line ..... 1000mV i2 dB/lOOK ohm
Mic ............... 80mV/8 ohm -
Signal to Noise Ratio (N R OFF) ............................................... 54 d B
(NR B) ................................................. 59 d B
(NR C) ................................................. 64 d B
Record/Playback Head .................................... Two Gap Combination Ferrite Core
Erase Head ................................................... Double Gaps Ferrite Core
Distortion .................................................................. 3%
Stereo Separation ........................................................... 35 dB
Input Sensitivity/impedance ......................... Line; 100mV/50K ohm; Mic; 0.3mV/600 oh m
Semiconductors .................... 17 IC-s, 68 Transistors, 50 Diodes, 4 Zener Diodes, 1 Bridge Diode
Dimensions .............................................. 435(W) x116(H)x 254(0) m m
Weight ................................................................... 5.6 kg