Service Manuals, User Guides, Schematic Diagrams or docs for : Sanyo Monitor Sanyo_DP32642_P32642-04_Z6TJ_[SM]
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SANYO
TROUBLESHOOTING GUIDE
2012 MODELS
DP32642-03
DP32642-04
DP39842-02
DP39842-03
This guide is divided into 4 sections/pages depending on type of defect:
page 1)No Green LED Power Light.(LED never turns"ON")
page 2)Green LED Light is "ON", but Backlights are not "ON",or only turn"ON & then OFF".
page 3)Green LED Light is "ON",and Backlights are "ON",but there is no video/OSD.
page 4)Green LED Light turns "ON", but turns "OFF"within 10 seconds.
Please select the section/page that matches your defect and follow the flow chart.
These models & chassis versions are in this guide:
DP32642-03
DP32642-04
DP39842-02
DP39842-03
PLEASE KEEP THIS GUIDE.
IT WILL NOT BE PROVIDED FOR EVERY REPAIR.
[email protected]
Repair Flow Chart:Trouble Condition
Green Power LED does not turn on. The TV is dead.
Green Power LED:
Does not turn ON.
The TV is dead.
On analog signal board: No:0v
Is the "5VSTB" voltage supplied?
(see TABLE*1.0)
Unplug(K702) connector on No:0v
power board. On Power board: Power board is not working.
Yes:5v
Is the "5VSTB" voltage supplied? Replace "Power board".
(see TABLE*2.0)
Yes:5v
No:0v
Unplug(K16A) and(K16B) connector
Analog board is not working.
between digital unit and analog unit
Replace "analog board".
Is the "5V_STBY" voltage supplied?
(see TABLE*3.0)
Yes:5v
Replace "digital board".
On digital signal board: No:0v
Is the "5V_STBY" voltage on
"K5A55 Pin 3 or Pin 4"?
(see TABLE*4.0)
Analog board is not working.
Yes:5v
Replace "analog board".
While pushing the "power key sw" No voltage(0v)at K16A Pin17 or 2.9V always present.
is the 2.9V from "key sw2"
supplied to "K16A Pin17"?
(see TABLE*5.0)
Analog board was broken.
Replace "analog board".
Yes
Digital board is not working.
Replace "digital board".
(TABLE *1.0)Analog board:5VSTB Test Points
32/39" Models 5VSTB on Analog board Confirmation Voltage
DP32642-03 Z6TH Analog K17 Pin4 or Pin5 5V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
(TABLE *2.0) Power board:5VSTB Test Points
32/39" Models 5VSTB on Power board Confirmation Voltage
DP32642-03 Z6TH Power K702 Pin4 or Pin5 5V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
(TABLE *3.0)Digital board:5V_STBY Test Points
32/39" Models 5V_STBY on Analog board Confirmation Voltage
DP32642-03 Z6TH Analog K16A Pin3 or Pin4 5V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
Page 1
(TABLE *4.0)Digital board:5VSTB Test Points
32/39" Models 5VSTB on Digital board Confirmation Voltage
DP32642-03 Z6TH Digital K5A55 Pin3 or Pin4 5V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
(TABLE *5.0) Analog board: Key_SW2 Test Points
32/39" Models Key_SW2 on Analog board Confirmation Voltage
DP32642-03 Z6TH Analog K16A Pin17 2.9V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
Repair Flow Chart:Trouble Condition
Green Power is on,but LCD backlights are not on.
Backlights do not turn on, or only turn on and back off.
Power LED turns ON,
but LCD backlight is not ON
or only turned ON and then
back OFF.
On analog signal board:
No:0V
Is the "BL_SW" voltage (3.3V)
Supplied from "K17 Pin13"?
See TABLE *1.0
No:0V Digit board is not working.
On digital board:
Is 3.3V supplied to"K5A55 Pin19" ? Replace "digital board".
See TABLE *2.0
Yes:3.3V
Yes:3.3V
Replace "analog board and
wire harness".
On Power board:
No:over +2V
Is the 0V supplied from "K701 Pin10"
during LED on time?
See TABLE *3.0
Panel is broken.
Replace "Panel".
Yes:0V
On Power board:
Z6TH +20V, -20V
Z6SJ +24V, -24V
Is the Z6SH +50V, -50V sine wave (RMS)
Z6SL +55V,-55V No:0V
supplied from "K701 Pin 1/2"
Z6TH +20V, -20V
Is the Z6SJ +24V, -24V sine wave (RMS)
Z6SH +50V, -50V
Z6SL +55V,-55V
supplied from "K701 Pin 4/5" Power board is not working.
See TABLE *4.0 Replace "Power board".
Z6TH +20V, -20V
Yes: Z6SJ +24V, -24V sine wave(RMS)
Z6SH +50V, -50V
Z6SL +55V,-55V
Confirm wire harness connection
between analog board &Power board
and between Power board and panel .
Panel is not working
Replace panel.
Page 2
(TABLE *1.0)Analog board: BL_SW Test Points
32/39" Models BL_SW on Analog board Confirmation Voltage
DP32642-03 Z6TH Analog K17 Pin13 3.3V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
(TABLE *2.0) Digital board: 3.3V Test Points
32/39" Models BL_SW on Digital board Confirmation Voltage
DP32642-03 Z6TH Digital K5A55 Pin19 3.3V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
(TABLE *3.0)Analog board: BL-SW Test Points
32/39" Models 0V on Power board Confirmation Voltage
DP32642-03 Z6TH Power K701 Pin10 0V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
Z6TH +20V, -20V
Z6SJ +24V, -24V
Z6SH +50V, -50V
(TABLE *4.0) Power board: Z6SL +55V,-55V Sine wave (Vp_p)Test Points
Z6TH +20V, -20V
32/39" Models Z6SJ +24V, -24V
Confirmation Voltage
Z6SH +50V, -50V Sine wave (RMS) on Power board
Z6SL +55V,-55V
DP32642-03 Z6TH
DP32642-04 Z6TJ +20V, +24V,+50V,+55V Power K701 Pin1 or Pin2 +65V, +90V,+90V Sine wave
DP39842-02 Z6SH
-20V, -24V,-50V,-55V Power K701 Pin4 or Pin5 -65V,+90V,-90V Sine wave
DP39842-03 Z6SL
Repair Flow Chart:Trouble Condition
Green Power LED and LCD backlights are ON,but no video or OSD.
LCD backlights are ON,
but TV has NO VIDEO or OSD.
On analog board:
Is the 12V supplied from "K17 Pin 8/9"?
See TABLE *1.0
Replace"Power board" and
"Wire harness".
On digital board:
Is power 12V supllied from "K5A55 Pin2"?
See TABLE *2.0
Analog board is not working.
Replace "analog board".
On digital board:
Is power 12V to LCD Panel supplied
from"K5LV Pin29/32/37" ?
See TABLE *3.0
Digital board is not working.
Replace "digital board".
Is LVDS clock outputed?
See TABLE *4.0
Digit board is not working.
Replace "digital board".
Confirm LVDS cable connection
and check for video OSD again.
LCD panel is not working. If the clock output is OK,the digital board is
Replace" LVDS Cable&LCD Panel". normally OK,but can not be 100% sure.If
replace the LVDS cable do not the correct
problem, please try to replace the digital
before ordering a panel.
Page 3
(TABLE *1.0)Analog board: 12V Test Points
32/39" Models 12V on Analog board Confirmation Voltage
DP32642-03 Z6TH Analog K17 Pin8 or Pin9 12V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
(TABLE *2.0) Digital board: 12V Test Points
32/39" Models 12V on Digital board Confirmation Voltage
DP32642-03 Z6TH Digital K5A Pin2 12V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
(TABLE *3.0) Digital board: 12V Test Points
32/39" Models 12V on Digital board Confirmation Voltage
DP32642-03 Z6TH Digital K5LV Pin29/33/37 12V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
(TABLE*4.0)Main board:"LVDS Clock"Test Points
32/39" Models LVDS Clock on Digital board
DP32642-03 Z6TH K5LV Pin6/26 clock+
DP32642-04 Z6TJ K5LV Pin8/28 clock-
DP39842-02 Z6SH
DP39842-03 Z6SL
Note:The bandwidth of the oscilloscope and probe must be at least 100MHZ or higher to check if the clock pulse exists.
Repair Flow Chart:Trouble Condition
Power LED turns OFF within 10 sec of power ON.
Power LED turns OFF within
10 sec of power ON.
On analog board:
Is 3.3V supplied to"K17 Pin1"during
LED ON time?
See TABLE *1.0
On digital board:
Is 3.3V supllied to "K5A55 Pin27/29"?
See TABLE *2.0
Digital board is not working.
Replace "digital board".
Analog board is not working.
Replace "analog board".
Unplug cable from digital board
to LCD Panel is symptom
changed?
LCD Panel is not working.
Digital board may also not be working.
Replace "LCD Panel &digital board".
On power board:
Is the 12V supplied from "K702 Pin8/9 "
during LED ON time?
See TABLE *3.0 Power board is not working.
Replace "Power board."
Power board is not working.
Replace "Power board."
Digital board is not working.
Analog board may also not be working.
Replace "digital board and analog board".
Page 4
(TABLE *1.0)Analog board: 3.3V Test Points
32/39" Models Power_ON on Analog board Confirmation Voltage
DP32642-03 Z6TH Analog K17 Pin1 2.9V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
(TABLE *2.0) Digital board: 3.3V Test Points
32/39" Models 3.3V on Digital board Confirmation Voltage
DP32642-03 Z6TH Digital K5A55 Pin27/29 3.3V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
(TABLE *3.0)Power board: 12V Test Points
32/39" Models 12V on Power board Confirmation Voltage
DP32642-03 Z6TH Power K702 Pin8 or pin9 12V
DP32642-04 Z6TJ
DP39842-02 Z6SH
DP39842-03 Z6SL
FILE No.
SERVICE MANUAL Remote Control Digital DP32642
Color Television (U.S.A.) (CANADA)
ORIGINAL VERSION
Chassis No. P32642-04
NOTE: Match the Chassis No. on
the unit's back cover with
the Chassis No. in the
Service Manual.
If the Original Version
Service Manual Chassis
No. does not match the
unit's, additional Service
Literature is required. You
must refer to "Notices" to
the Original Service
Manual prior to servicing
the unit.
Servicing should be performed by only trained and qualified service personnel.
Contents Specifications
SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . 2 POWER RATING . . . . . . . . . . . . . . . . . . . . . . . . . 120VAC
SERVICE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . 3 95 W (AVG.)
ON-SCREEN SERVICE MENU . . . . . . . . . . . . . . . . . . . . . 4 ANTENNA INPUT IMPEDANCE. . . . . . . . . . . . . . . . . 75
POWER FAILURE CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . 5 UHF/VHF/CATV
MECHANICAL DISASSEMBLY . . . . . . . . . . . . . . . . . . . . 6 DIGITAL
CHASSIS ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . 9
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