28LF-94H - Sharp TV Service Manual (repair manual). Page 12

Read Sharp 28LF-94H Service Manual online

12
AK - 53
CHASSIS
 
port state 
Q404 
Standard 
SEL_L/L' High  Shorted to 
ground 
L' 
SEL_L/L' Low  open 
BG,DK,I,L 
 
Pin Configuration 
 
Pin No 
Definition 
1 Input 
Input - ground
 
Chip carrier - ground
 
Output
 
Output
 
 
 
 
 
 Maximum ratings for saw filters 
 
Operable temperature range  
 
T
A
  
Storage temperature range  
 
T
stg
  
DC 
voltage 
 
    V
DC
  
AC voltage   
 
 
 
V
pp
   –25/+65  
°C 
 
 
12. IC DESCRIPTIONS
In following chapters you can find details of ICs used in the chassis and the SS B (Small signal board)
TDA6108JF
HT48RA0A
PNX3000
CS51033
SDRAM 64MBIT
FLASH 32 MBIT
NE56610-29
STS5PF30L
PNX300X
M24C64WBN6
TDA7480L
LM7808
TDA8177
TCET1102G
MC44608
TL431
TFMS5360
12.1. TDA6108JF (IC900)
12.1.1. General Description
The TDA6108JF includes three video output amplifiers in one plastic DIL-bent-SIL 9-pin medium power (DBS9MPF) package
(SOT111-1), using high-voltage DMOS technology, and is intended to drive the three cathodes of a color CRT directly. To
obtain maximum performance, the amplifier should be used with black-current control.
12.1.2. Features
• 
Typical bandwidth of 9.0 MHz for an output signal of 60 V (p-p)
• 
High slew rate of 1850 V/µs
• 
No external components required
• 
Very simple application
• 
Single supply voltage of 200 V
• 
Internal reference voltage of 2.5 V
• 
Fixed gain of 51
Page of 72
Display

Click on the first or last page to see other 28LF-94H service manuals if exist.