Sharp 28JF-76E Service Manual page 65

SDA9380 (IC6006)
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Name Type Description
CLKI I/TTL Input for external line locked clock *)
X2 Q
Reference oscillator output, Crystal
X1 I
Reference oscillator input, Crystal
CLEXT I/TTL Switching between internal (L) and external clock (H) *)
TEST I/TTL Switching between normal operation (TEST=L) and test mode
(TEST=H: pins 4, 12, 13, 14, 15, 17, 49, 50, 63, 64 are additio-
nal test pins)
SUBST S Substrate pin, has to be connected to ground whenever a
power supply or signal is applied
RESN I/TTL
Reset input, active Low
SCL I
I²C Bus clock
SDA IQ I²C Bus data
VDD(D) S Digital supply
VSS(D) S
Digital ground
HD Q Control signal output for H driver stage (open drain)
H35K Q/TTL Goes High when frequency of HSYNC is about 35kHz or more
H38K Q/TTL Goes High when frequency of HSYNC is about 38kHz
PWM Q/TTL Pulse width modulated control signal output
VSYNC I/TTL V-sync input
FH1_2 I/TTL Switching between 1f
HSYNC I HSYNC input (CLEXT=H: TTL; CLEXT=L: analog) *)
VDD(A1) S
Analog supply
VSS(A1) S Analog ground
Φ
2 I Line flyback for H-delay compensation
VDD(A2) S
Analog supply
VSS(A2) S
Analog ground
E/W Q Control signal output for East-West raster correction
D/A Q Output of an I²C Bus controlled DC voltage
VD+ Q
Control signal output for DC coupled V-output stage
VD- Q Like VD+
VDD(A3) S Analog supply
VSS(A3) S Analog ground
VPROT I
Watching external V-output stage (input is the V-saw-tooth from
feedback resistor)
HPROT I Watching EHT (input is e.g. H-flyback)
HSAFE I Watching B+ when frequency of HD has to be decreased
BSOIN I Input for starting Black Switch-Off
IBEAM I
Input for a beam current dependent signal for stabilization of
width, height and H-phase
PROTON Q/TTL Protection on (goes High after response of H- or V-protection)
mode (L) and 2f
H
65
28JF-76E
mode (H)
H