Sony KD-34XBR2 Training Manual page 70

Board Circuits
Secondary Power
D Standby Power
A
Supply (+200V,
+135V)
Protection latch
circuit
HV Regulator circuit
Corner focus circuit
Top/bottom
pincushion circuit
H Output / V Output
AV loss detection
F
circuit
Degaussing relay
DRC for line
Q Box
doubling
(Qi,
MID for twin pictures
QM
DTV Tuner and
Bds)
video processing
Audio Processing
S
Rear panel
U
input/output
connectors.
Velocity Modulation
W
circuit to improve
detail.
Top/bottom
Pincushion and
corner focus coils.
Fuses
# Load
R6236 Sec PS
R6002 Primary PS
PS6501, 24V Audio
PS6502 Output
R8051 Hi Volt PS
R5096 200V
Video
Output
R5097-8 H
Centering
R5099 Filament
R5576 DQP Amp
(corner
focus)
R5711 Conv Yoke
R5712 Amp
F6701- Main AC –
6A
None
None
None
None
G1
67
14. HA-3 TV Chassis Board Replacement
Zeners
# Purpose
D6508=33V Reg Tuner
D4415, +24V OVP
voltage
D6025=33V HV limit
D8006=13V
D6004=5V HV Protect
ref
D5031=17V Fbk pulse
limiter
D5004=12V MOSFET
Protect
D5007 DQP mute
at pwr ON
None
D7803 3.9V Reg
for IC7805
(Write PLL)
QM Bd.
D4408-11V Sub 9V line
OVP
D4401-2 = line input
10V protection
None
None
W board
clamp
After board
Replacement
Transplant memory
No Adjustments
IC5501 containing
deflection
parameters.
Adj Focus (on FBT).
Enter the service
mode* and perform
touch up geometry
adjustments to D-
Conv/CXA8070,
CXA2150D-1 and
CXA2026 data.
Adjust HV RV8002
for 31.5kV. Adjust
HV shutdown
RV8001 according to
safety related adj. in
the service manual.
No adjustments.
No adjustments.
Enter the service
mode and verify the
TV ID (group #19).
** see note below
No adjustments.
No adjustments.
No adjustments.
Note position of coils
on CRT neck before
Pix
removing the old
tube
board or corner
distortion will occur.