Additional Information On Q801; Block Diagram Of Q801 (Str-Z4117); Pin Descriptions - Toshiba TP43H60 Service Training

Additional Information on Q801

Caution: Different input signals may cause a variance in voltage readings. The Voltages and waveforms
below were recorded while displaying a color bar signal.

Block Diagram of Q801 (STR-Z4117)

C869
From
R866

Pin Descriptions

Pin Name
1
3
4
5
6
7
8
9
10
11
12
14
15
Q801
TSD OVP
CD
6
Delay Latch
From
10
OSC
OC
Control
OC
5 4
Css Cont.
From
From
R864
C866
Vdc
V 165
IN
GND 0
CONT 7.2
Css 3.9
CD .4
DT 5.7
VCC 19.6
DRI 8
OC .7
RC .06
COM 0
OUT 82
VB 90
To Out From
R861 to VB DRI Vcc
8 9
Vcc DRI Vcc
Start
A
Ref.
Logic
B
OSC
RC
11
7
RC
DT
From
From
R867
C872
Description
Half bridge power input
Control unit ground
Oscillator control terminal
Soft start capacitor terminal
Delay latch capacitor terminal
Dead time resistor terminal
Control unit power terminal
Gate drive power output
Over current detection
Resonance correction terminal
Half bridge GND
Half bridge output
High side gate drive power input
11
15 VB
1
V
IN
14
Out
12
COM.
3
GND