MS 8 - JBL Car Audio Service Manual (repair manual). Page 2

Read JBL MS 8 Service Manual online

 
 
-  CONTENTS  - 
 
SPECIFICATIONS ………………………………………..1 
PACKAGING……………..…………………………..…....2 
NOTICE REGARDING TESTING THE UNIT…….….…3 
CONNECTIONS ……………………………..……………4 
RESETTING THE MICROPROCESSOR………..…….15 
REMOTE CONTROL …………….….…………..………16 
TROUBLESHOOTING……………..…..…………………17 
EXPLODED VIEW/PARTS LIST……...….….………….22 
AMPLIFIER BLOCK DIAGRAM…….……………..….…23 
ELECTRICAL PARTS LIST ..….…….……….…………26 
P.C.B. DRAWINGS….……………………………….……30 
IC/TRANSISTOR PINOUTS..…………….……….….…..37 
SCHEMATICS……………...……………….………..…...93 
 
MS-8 Specifications 
 
Power Output:  
 
 
 
 
20W x 8 channels @ 4 ohms 
Maximum Output Power:  
 
 
 
30W x 8 channels @ 2 ohms 
Frequency 
Response: 
    20Hz–20kHz 
Signal-to-Noise Ratio (Line Input to Line Output):   >90dB 
Signal-to-Noise Ratio (Line Input to Spkr Output):   >85dB 
Maximum Input Voltage (Speaker-Level Input):  
15V 
Maximum Input Voltage (Line Input):  
 
2.8V 
Maximum Output Voltage (Line Output):  
 
2.8V 
Maximum 
Current 
Draw: 
 
   16A 
Standby Current Draw:  
 
 
 
<0.01A 
Display LCD Screen:   
 
 
 
128 x 64 pixels 
Power Requirement:    
 
 
 
12V DC, negative ground 
Main Unit Dimensions (L x W x H):    
 
11-1/2" x 7-3/8" x 2-1/8" (293mm x 187mm x 55mm) 
Display Unit Dimensions (H x W x D, w/ stand):  
3-1/8" x 3-3/8" x 2-7/16" (79mm x 86mm x 62mm) 
Weight: 
      Main 
unit 
– 
6.4 
lb 
(2.9kg) 
Display unit – 2.8 oz (80g) 
Remote control – 1.4 oz (40g) 
Fuse 
      25A 
 
 
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. 
 
 MS-8   
 
 
 
 
 
 
 
 
 
 
 
   
      
 
 
 
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