Alpine 3550 service manual

Page 2

Contents

Specifications ....................................................................................... 2
Features ........................................................................................... 3 .
Switches and Terminals . .............. . V . . . 4
Switch Settings ...................................................................................... 5
Connections ......................................................................................... 6
Characteristic Curves ....................... , .......... . .............................................. 7
Precautions ....................................................................................... 7
Disassemblylnstructions ..................................................... 8
Block Diagram .................................................................................. 9 to 10
Parts Layout on P.C.Boards and Wiring Diagram . . ....... . 11 to 12
SchematicDiagram ................................ ......................... 13to15
IC's and Transistors Voltage Values .................................................................... 16
Exploded View (Cabinet) . . . ....... . .............................................................. 17to 18
Cabinet Assembly Parts List .......................................................................... 19

Electrical Parts List ...................... . . .
Packing Method View .......................
Packing Assembly Parts List .....
Semi-Conductor Lead Identifications . . . . V . . .....

Specifications

<40hms 4-channel stereo mode>
Power Output (20Hz»20kHz, 0.08%T,H.D) .................................... . . . ................. ZOW/ch
S/N Ratio (Ref. 25W/4 ohm) IOOdB
input Sensitivity (25W Power Output) Fixed : 0.5V:2d8 (RCA Input)
2v : ZdB (SP input)
Variable : 2V : ZdB (RCA Input)
8V:2dB (SP Input)
Input Impedance ...................................................... . .............. RCA Input: Iokohm tZkohm
SP Input: 15kohm izohm
ZOHZ-AOkHz

Frequency Response (at tkHz) .

Zero Signai Current Drain .. 1.5A
Current Drain (10%T.H.D) .. 23A
Channel Separation (at IkHz) ............................................................................ SSdB

Power Output (O.B%T.H.D) ........................................ ZOHZ : 25W/ch, lkHz : 30W/ch, ZOkHz : BOW/ch
Current Drain (10%T.H.D) ..................................................................................... 30A
<4ohms BTL mono mode>

Power Output (ZOHZeZOkHz, 0.8%TVH.D) ................................................. . .............. 60W/ch

< General >
Fuse Requirement 25A (Battery)

14.4V DC

Power Source

Semiconductors I1IC5, 44 Transistors. 23 Diodes, 6Zener Diodes
DimenSions (WxHxD) V V V. V H . . . 240x51x250mm
Weight ..................................................................................................... 2.7llkg

NOTE : Due to continumg product improvement, spemfications and deSign are SUbJCCt to change without notice.