Akai GX-747 dbx Service Manual

SECTION 3
SCHEMATIC DIAGRAM
1. SCHEMATIC DIAGRAM OF IC's ........................................... 70
2. GX-747
dbx No. 2-1 1621824B SYSCON SCHEMATIC DIAGRAM ................ 73
3. GX-747 dbx No. 2-2 821120A AMP SCHEMATIC DIAGRAM ..................... 74
BA6109
M5230L
Vee I Vee 2
i------ 7 ------ - 8
I
I
FIN 5
R
IN 6
I
I
I
LOG IC
PRE
DRIVER
9 V
I
I
L _______ _
I ________ J
GND
r-----1~------------.------------17 (+)IN PUT
STARTER
STANDARD 1---1--1
VOLTAGE
GENE LA TOR
.>-----<11-----1 OVER CURRENT 1-----1
PROTECTION
'---------------------' 5 VOLTAGE ADJ
.__ __ OVER CURRENT
PROTECTION ,..__. ______ 4 (-)IN PUT
-------------SCHEMATIC DIAGRAM GX-747dbx -------------
70

Akai GX-747 dbx Specifications

General

Track System	4-track, 2-channel stereo
Reel Size	up to 10.5 inch reel
Type	Reel to Reel
Heads	2 x erase
Motor	1 x capstan, 2 x reel
Tape Speed	9.5 cm/s, 19 cm/s
Wow and Flutter	0.03% (19 cm/s)
Signal to Noise Ratio	65dB
Input	1 x line, 1 x microphone
Output	1 x line
Dimensions	440 x 480 x 260 mm