Table Of Contents; Specifications - JBL 1201.1 Service Manual

Power Amplifier
SPECIFICATIONS ................................................1
FEATURES/TEST CONDITIONS.............................2
INSTALLATION......................................................3
CONNECTIONS.....................................................4
SET-UP/CONTROLS .............................................5
INSTALLING NEON TUBES....................................5
BASIC TROUBLESHOOTING..................................6
TYPICAL SYSTEM WIRING....................................7
EXPLODED VIEW/PARTS LIST...............................8
MECHANICAL PARTS LIST.....................................9
AMPLIFIER BLOCK DIAGRAM...............................10
P.C.B. DRAWINGS................................................11
ELECTRICAL PARTS LIST ....................................14
VERSION II ELECTRICAL PARTS LIST ADDENDUM..............18
IC/TRANSISTOR PINOUTS......................................19
GTO 1201.1 SCHEMATICS.....................................25
GTO 1201.1II SCHEMATICS...................................28
PACKING............................................................31
GTO 1201.1/ GTO 1201.1II Specifications
Output Power:
(14.4V supply)
Signal-to-noise ratio:
Dynamic power:
Effective damping factor:
Frequency response:
Maximum input signal:
Maximum sensitivity:
DC Offset
Output regulation:
Idle Current
Input Impedance
Max Current Draw
Dimensions:
Fuses:
JBL continually strives to update and improve existing products, as well as create new ones. The specifications and details in
this and related JBL publications are therefore subject to change without notice.
- CONTENTS -
787W RMS x 1 channels @ 4 ohms; ≤1% THD + N
1114W RMS x 1 channels @ 2 ohms; ≤1% THD + N
70dBA (reference 1W into 4 ohms)
1339W @ 2 ohms
6.34 @ 4 ohms
10Hz - 302Hz (-3dB)
6.1V
GTO 1201.1 - 140mV
GTO 1201.1II - 75mV
<50mV (-50%)
.14dB @ 4 ohms
2.3A
22kΩ
73A @ 4 ohms
125A @ 2 ohms
18 11/16 x 12 5/16 x 2 3/8"
(474mm x 313mm x 60mm)
40A x 3
GTO 1201.1/1201.1II
(L x W x D)