PZ-43MR2E (serv.man9). Trouble shooting table — Sharp TV Service Manual (repair manual)

Model
PZ-43MR2E (serv.man9)
Pages
7
Size
37.49 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Trouble shooting table
File
pz-43mr2e-sm9.pdf
Date

View Sharp PZ-43MR2E (serv.man9) Service Manual online

43
PZ-43MR2E
PZ-50MR2E
TROUBLE SHOOTING TABLE
Æ 
POWER Unit
P
o
wer
-on failure (Fr
ont LED indicator sta
ys off
.)
NO
YES
Is the po
w
er cab
le 
connector proper
ly 
connected with the set?
Reinser
t the po
w
er cab
le 
connector and tur
n on the 
po
w
er again.
NO
YES
Are F701 and F702 intact 
in place?
Replace F701 or F702 and 
tur
n on the po
w
er again.
 If 
the fuse b
lo
w
s out again, 
replace 
V
A701, Q701, Q703 
and IC702 and chec
k the 
perf
or
mance again.
 
NO
YES
Does the BA
CK5V line 
function?
Chec
k the BA
CK5V line
. Is 
there an
y def
ectiv
e par
t or 
shor
t-circuit?
Chec
k the set's wire 
har
nesses
, FFCs and other 
par
ts f
or their connections
.
YES
Repair the def
ectiv
par
t or shor
t-circuit.
 
Chec
k the 
perf
or
mance again.
NO
Chec
k IC702, 
T702, PC703 and 
their per
ipher
al 
circuits
.
P
o
wer s
witc
h on,
 b
ut no po
wer 
(Fr
ont LED indicator does not c
hang
e fr
om red to green,
 b
ut remains in red.)
NO
YES
Are the MDR and D
VI cab
le connectors (white 
and g
ra
y) proper
ly connected with the PDP 
and the set as w
ell?
NO
YES
YES
YES
Is the impedance of the M+10V line 
as specified? (Measure the resistance 
betw
een F1702 and GND
.)
NO
NO
YES
Are there v
oltage 
fluctuations along the O
VP 
line (pin (12) of P1502)?
NO
Chec
k the M+10V line as w
ell 
as its circuit par
ts
.
YES
Are the DC/DC con
v
e
rter output 
lines and MOS-FET (Q1712, 
Q1716, Q1726 and Q1718) as 
specified?
NO
Chekc the D_PO
W and 
B+2.5V_PO
W lines (pins (6) 
and (7) of IC1503).
YES
NO
Chec
k the DC/DC con
v
e
rter output 
lines and replace the MOS-FET 
(Q1712, Q1716, Q1726 and Q1718).
NO
YES
Is the PS_ON ter
minal (pin (1) of CN703) at HI 
(3.5V)?
Chec
k the inter
nal par
ts of the po
w
er 
unit (Q703, Q704, Q708, Q709, D717, 
D710 and D711).
Are the D_PO
W and B+2.5V_PO
settings (pins (30), (32), (33) and (34) 
of IC1701) at HI?
NO
YES
Do the +5V line (pin (10) of P1703), 
+2.5V line (pins (5) and (6) of P1702), 
and +3.3V line (pin (8) of P1702) all 
function?
Chec
k the set's wire har
nesses
FFCs and other par
ts f
or their 
connections
.
Replace IC1701.
Chec
k the PS_ON line
.
Is the M+10V line as specified?
Is the PDP's po
w
er s
witch on?
Reinser
t the connectors
, and tur
n on the 
po
w
er again.
T
u
rn
 on the PDP's po
w
er s
witch.

Download Sharp PZ-43MR2E (serv.man9) Service Manual (Repair Manual)

Here you can view online or download Sharp PZ-43MR2E (serv.man9) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp PZ-43MR2E (serv.man9) LCD. Information contained in Sharp PZ-43MR2E (serv.man9) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).