Sanyo CE27LD6-B, CE32LD6-B Schematic
Part No. SKSM0855 N2WKD/N2YKD MARCH 2006
Colour Television
Service Manual
Give complete "SERVICE REF. NO." for parts
order or servicing, it is shown on the rating sheet
on the cabinet back of the TV set.
Note
This TV receiver will not work properly in foreign
countries where the television transmission
system and power source differ from the design
specifications. Refer to the specifications for the
design specifications
CE27LD6-B
CE
32LD6-B
Contents
Safety precautions/Specifications ..................................................................................................................2
Service Mode/Option settings ........................................................................................................................3
Block Diagram ................................................................................................................................................4
Power Diagram ..............................................................................................................................................5
IC Descriptions............................................................................................................................................6~7
IC Block Diagrams..........................................................................................................................................................................8~12
Cabinet Parts List ........................................................................................................................................13
Cabinet Disassembly....................................................................................................................................14
Pin description of semiconductors................................................................................................................15
Part Description and reading of schematic diagram ....................................................................................16
Electric Parts List....................................................................................................................................17~32
Please use Schematic Diagram SKP20579
inserted with this Service Manual.
Model CE27LD6-B
CE32LD6-B
Service Ref. No. CE27LD6-B-00
CE32LD6-B-00
PRODUCT CODE: 111376230 (27”)
111376331 (32”)
ORIGINAL VERSION:Chassis No.UK4-A
-2-
N2WKD/YKD
SAFETY PRECAUTION
PRODUCT SAFETY NOTICE
SPECIFICATIONS
Product safety should be considered when a component replacement is made in any area of a receiver. Components
indicated by mark in the parts list and the schematic diagram designate components in which safety can be of
special significance. It is particularly recommended that only parts designated on the parts list in this manual be used
for component replacement designated by mark . No deviations from resistance wattage or voltage ratings may be
made for replacement items designated by mark .
1: An isolation transformer should be connected in the
power line between the receiver and the AC line when a
service is performed on the primary of the converter
transformer of the set.
2: Comply with all caution and safety-related notes
provided on the cabinet back, inside the cabinet, on
the chassis or the picture tube.
3: When replacing a chassis in the cabinet, always be cer-
tain that all the protective devices are installed properly,
such as, control knobs, adjustment covers or shields,
barriers, isolation resistor-capacitor networks etc. Before
returning any television to the customer, the service technician must be sure that it is completely safe to operate
without danger of electrical shock.
Power source AC 220~240V, 50Hz
Television system System I
Colour system PAL/NTSC4.43 (PAL/NTSC4.43/NTSC3.58 IN AV MODE)
Receiving channel UHF: #21~69
Aerial input impedance 75ohm
Rear AV terminal
AV1: CENELEC standard
INPUT: Composite video, RGB and Audio L/R
OUTPUT: TV-output with composite video and audio L/R
AV2: CENELEC standard
INPUT: Composite video, RGB, S-VHS and Audio L/R
OUTPUT: Monitor output with composite video and Audio L/R
AV3: CENELEC standard
INPUT: Composite video and Audio L/R
Side AVterminal
AV4: RCA Jacks
INPUT: Composite video and Audio L/R
AVterminal
AV5: INPUT: Component (Y,Pb,Pr) and Audio L/R
HDMI
INPUT: HDMI GROUP Standard
Headphone Socket Mini Jack
Audio M.Out Cinch: L/R
CI Conditional Interface
CE27LD6-B CE32LD6-B
Sound output(Continuous) 10W x 2 10W x 2
Contrast Ratio 900:1 1000:1
Display Resolution 1366 x 768 (WXGA) 1366 x 768 (WXGA)
Viewing Angles H: 176°, V: 176° H: 176°, V: 176°
Dimensions (WxHxD) 800 x 470 x 239 922 x 545 x 239mm
Weight 13.74 Kg 17.5 Kg
!
!
!
Important rn normaton
Your SANYO product is designed and
manufactured with high quality materials
and components which can be recycled
and reused.
This symbol means that electrical and
electronic equipment, at their end-of-life,
should be disposed of seprately.
In the European Union there are separate collection systems for
used electrical and electronic products.
a p to onr t nronmnt n
Note: This symbol mark and recycle system are applied only to
EU countries and are not applied to other countries of the
world.
RoHS
!
.This product does not contain any hazardous substances prohibited by the RoHS Directive.
(You will find “R” or “Z” at the last digit of the serial number or an “RSF” label near the rating plate on
the RoHS compliant product.)
WARNING
!
.You are requested to use RoHS compliant parts for maintenance or repair.
.You are requested to use lead-free solder .
-3-
N2WKD/YKD
To enter to the Service Mode
+ Press and hold the GREEN button on the remote control and then press the P▼ button on the cabinet.
To select the service item and change data value
+ To select the adjustment item, use the P▲ or P▼ button.
+ To change the service data, use the Volume -(LEFT) or Volume + (RIGHT) button.
+ The data which is set in the service mode is stored into the memory IC automatically.
EXAMPLE: 000 UK4A 05.13
ITEM NO SECTION VALUE
ITEM
Exit from the Service Mode
+ Press the MENU button or turn off the TV set by using the Mains switch.
OPTION SETTINGS
UK4A ALIGNMENT MATRIX
OPTIONS CE27LC6-B CE27LD6-B CE27LC6BK-C CE27LD6BK-C CE32LC6-B CE32LD6-B CE32LC6BK-C CE32LD6BK-C
SERVICE ITEM 253 11111111
SERVICE ITEM 252 11111111
SERVICE ITEM 251 11111111
SERVICE ITEM 250 11111111
SERVICE ITEM 249 11001100
SERVICE ITEM 248 00000000
SERVICE ITEM 247 11111111
SERVICE ITEM 246 01010101
SERVICE ITEM 245 00000000
SERVICE ITEM 244 11111111
SERVICE ITEM 243 00000000
SERVICE ITEM 242 00000000
SERVICE ITEM 241 11111111
SHIPPING CONDITIONS
BRIGHTNESS 3 2 3 2 3 2 2 0
CONTRAST 4 0 5 0 4 0 31
COLOUR 3 2 3 2 3 2 2 0
SHARPNESS 3 2 3 2 3 2 1 6
PRESET
NOISE REDUCTION LOW LOW LOW LOW
DYN SKIN TONE ON ON ON ON
TEXT BRIGHTNESS MID MID MID MID
BASS
SURROUND
WEL TXT
P&P
EU0 UK1IRE2UI3
PC
HD
DIG
HDD
PATH HDD
COLOR SYS
AFC
ATS
PERSONAL DYNAMIC STANDARD ECHO
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N2WKD/YKD
BLOCK DIAGRAM
This is a diagram for all models and therefore differs slightly from the actual block diagram.
Outline
LCD PANEL
VIF
TUNER
VIFIN1
LOC2
PANEL
LVDS
SCART1
SCART2
SCART3
SIDE AV
CVBS1
TV OUT (CVBS)
RGB1
CVBS2
MON. OUT (CVBS)
RGB2
CVBS3
CVBS4
RGB
SWITCH
BA7603
VIDEO
SWITCH
BA7652
RGB
CVBS
DVBO_IFVO_FMRO
CVBS30_Y30
SWO1_CVBS20_Y20
CVBS_Y5
CVBS_Y4
CVBS
SVO6/CVBS6
R3_PR31
G3_Y31
B3_PB31
IF
VIDEO SWITCH
RGB/YPBPR
MATRIX
B2_PB21
YUV
G2_Y21
R2_PR21
YC
TEXT/OSD MIX
GTV
D-RGB
SCALER
Digital
Interface
PV10_23
ADC
IN_B
IN_G
IN_R
COMPONENT
HDMI
TMDS
YPBPR
SiI9021
HDMI
DECODER
D-RGB
TUNER
DIGITAL TV MODULE
YUV
SWITCH
N/C
BA7603
N/C
RGB
SWITCH
BA7657
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N2WKD/YKD
PIN E10
TO IC801
D6614
9V
D6615
12V_FAN
POWER DIAGRAM FOR UK4A
13V_PWR
9V
12V_FAN
D6604
5V_SW
5V_SW
D6605
3V3_SW
3V3_SW
D6606
D5V
D5V
D6607
D3V3
D3V3
D6616
6V
1V8_SW
24V
D6618
D1V8
D6621
D6601
PROTECT ARCHITECTURE
KQ
1
234
5
3V3 STB
24V
5V STB
5V
5V
IC6602
IC6603
IC6605
IC6606
IC6607
IC6608
6V
IC6604
ON/OFF
1
POWER 1
IC6609
ON/OFF
IC6610
IC6601
IC6600
IC6613
POWER ARCHITECTURE
POWER 4
PANEL ON
KQ
3
5
2
4
1
TO
POWER
UNIT
KR
1
23456
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N2WKD/YKD
IC Descriptions for UK4A
IC001
This is an LA4919N-E which is the audio amplifier for the set. It has left and right inputs from the LOC and left and
right outputs to the speakers and headphone socket. It also has mute and standby functions which are activated by
the LOC as appropriate.
IC1101 (monitor sets only)
This is a switching IC, NJM2233BM, which allows the sync signal input on monitor sets to be switched between pin
20 of SCART 1 (conventional & ALBOS) and pin 14 of SCART 1 (SIS signal). The IC takes a 5V supply and is
switched by the control line RGB_SW.
IC1205
This a ROHM BA7603F triple video switch which allows the RGB input to be switched between SCART 1 and
SCART 2. The switch is controlled by the RGB_SW line from the IC.
IC1222
This a MM1225XF which is an electronic switch. This IC selects either “scart2 monitor out” or “digital module cvbs”
as the output for scart 2. This is only active on digital sets.
IC1271
This a large multiway electronic switch, MM1631BJBE. Via the I2C lines the cpu can select any audio input L/R pair
and feed them to scart 3 or IC801.
IC151
BA2904F - this is an OP-AMP used to amplify the AGC voltage back to IC801.
IC1602
This is a “partial resonance power supply” IC. It is used as a SMP to supply the standby voltages.
IC1604 / IC671
This is a “precision shunt regulator” used in an “error amp” configuration to provide feedback control of the supply.
IC1801/1802
PCA9534PW - These are I2C expander IC’s. They convert I2C commands from IC801 into control lines.
IC1841/1851
These are OP-AMPS used to control the speed of the fans
IC4001
This is a SST SST39VF020 CMOS multi-purpose flash with a capacity of 2Mbits. It is connected to the LOC using
address lines, data input/output, write enable and control lines. The flash IC is powered by the 3V3 SW supply.
IC4002
This is a ROHM BD5260G open drain voltage detector IC which works in conjunction with the main power and the
3.3V standby line to control the back lights.
IC601
This is a “current mode PFC controller” operating in transition mode. It is used in conjunction with L603 as active
power phase correction.
IC6600
This is an LA5754 voltage regulator. It provides the 5v supply for the LCD panel.
IC6601
This is a BA33BC0FP voltage regulator. It converts the 5v standby supply to 3.3v.
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N2WKD/YKD
IC Descriptions for UK4A (continued)
IC6602
This is a BA09FP-E2 voltage regulator. It converts 13v to 9v.
IC6603
This is a BA12FP-E2 12v voltage regulator. It converts the main 13v supply down to 12v for the fan.
IC6604
This is a LA5754MP voltage regulator. This IC converts the main 13v supply down to 6v. IC801 can switch this IC on
and off via control line “Power 1”. Consequently all supplies developed from this 6v will also be switched (see power
architecture diagram on page 8)
IC6605 / 6 / 7 / 8 / 9 / 10
These are voltage regulators which convert the switched 6v supply down to 5v, 3.3v and 1.8v.
IC6613
This is a TC7SH02 2-INPUT NOR GATE. This IC controls the 5v power to the LCD panel. It is switched via control
lines “Power 4” and “Panel on”.
IC701
This is a THC63LVDM83R LVDS converter IC. This IC converts 3 sets of 8 bit data (R, G & B) into 4 channel and
clock data stream to the LCD panel.
IC8001
This is a HDMI receiver / convertor. HDMI data from K1006 is fed into this IC. The IC then extracts the video and
audio in digital format and sends the data to IC801. Audio data is converted to analogue via IC8501
IC801
This IC is the main control IC for the entire TV.
It incorporates:-
1) CPU for control and on-screen graphics presentation.
2) Video signal processor for controlling picture presentation and quality.
3) LCD scaler for converting different resolutions to the resolution of the LCD.
4) 100 page text decoder.
5) Stereo sound decoder.
6) Multi-system decoder (PAL, NTSC, SECAM etc.)
IC802
This is an 8K x 8 bit EEProm. It is used to store all the calibration data and user settings. When a new IC is fitted,
the CPU (IC801) will detect it and initialise the IC to the default factory settings.
IC8131
This is a 512 x 8 bit EEProm. It is used to store the resolutions that the tv is able to display along with the manufacturer, date of manufacture and model number. An external device (eg DVD) with HDMI will read this EEProm to
determine which resolution signal to send to the tv.
IC8141
This is an I2C isolation device
IC8501
This is a digital to analogue converter. It is used to convert the HDMI digital audio data to analogue.
IC8502
This is a dual OP-AMP and is used to bufffer the HDMI analogue signal to the audio selector IC (IC1271)
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N2WKD/YKD
x
IC801
IC BLOCK DIAGRAMS
x xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxx
xxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx
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N2WKD/YKD
IC BLOCK DIAGRAMS
IC001 LA4919N-E <Audio Output>
IC1205 BA7603F
1
HP IN1
HP IN2
2
HEADPHONES BLOCK
Ripple filter
VG=6dB
VG=6dB
Voltage
Regulator
HP OUT1
28
Vcc
27
HP OUT2
HP D.C
HP Standby
AMP Standby
D.C
DDL
ON TIME
IN2
PRE GND
PRE VCC
IN-VREF
IN1
POWER GND
3
4
AMP Standby SW
5
Ripple filter
6
7
Muting circuit
8
used at power on
9
10
Output amplifier Stage
11
amplifier
12
13
13
Input
amplifier
14
amplifier
REF
Input
H/P Standby SW
Non linear
amplifier
Switching Regulator BLOCK
H. L. S
ABCD
*H. L. S
Higher
Level signal
Selector
Head Phones Stage
Input amplifier Stage
Switching Regulator Stage
Non linear
amplifier
Output
amplifier
Output
amplifier
Switching
Drive
Power TR Stage
Output
amplifier
Output
amplifier
POWER GND
26
A
25
OUT2-
B
24
OUT2+
23
SW GND
22
SW B
21
SW E
20
SW OUT
VCC
19
18
17
C
16
OUT1+
D
15
OUT1-
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N2WKD/YKD
IC BLOCK DIAGRAMS
IC1271 (MM1631)
L1
L2
L3
L4
L5
L6
L7
L8
L9
L10
L11
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
BIAS
SCL
SDA
ADR
MUTE
GND
LOUT10dB
VCC
ROUT10dB
LOUT20dB
ROUT20dB
LOUT30dB
ROUT30dB
BIAS
Logic
33
35
1
3
5
7
9
11
13
15
17
34
36
2
4
6
8
10
12
14
16
18
19
23 22 21 20 24
30
29
28
27
26
25
31 32
IC4001 (ST39VF0200)
Functional Block Diagram
Memory Address
Address Buffers & Latches
CE#
OE#
WE#
Control Logic
X-Decoder
SuperFlash
Memory
Y-Decoder
I/O Buffers and Data Latches
DQ7-DQ0
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N2WKD/YKD
IC BLOCK DIAGRAMS
IC6600 / IC6604 (LA5754MP-DL-E)
IC601 L6562D
MP
IN
LTAE
REULATR
R
ND
INTERNAL
UPPL
R
+
-
RE
D
+
ERLTAE
DETETIN
UL
ER URRENT
DETETR
+
-
MULT
MULTIPLIER AND
TD PTIMIER
DIALE
-
R
+
TARTER
DRIER
D
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N2WKD/YKD
IC BLOCK DIAGRAMS
IC603 L6598D
IC1801 / IC1802 PCA9534PW
Rfmin
Rfstart
OPOUT
OPIN-
OPIN+
Cf
V
S
OP AMP
VCO
+
-
V
REF
V
REF
5
6
7
Ifmin
4
Ifstart
2
3
12
CONTROL
LOGIC
UV
DETECTION
DEAD
TIME
BOOTSTRAP
DRIVER
DRIVING
LOGIC
Iss
1
Css
HVG
DRIVER
LEVEL
SHIFTER
LVG DRIVER
+
-
+
-
Vthe1
Vthe2
16
15
14
Vs
11
10
8
9
V
BOOT
HVG
OUT
LVG
GND
EN1
EN2
H.V.
C
BOOT
LOAD
PCA9534
A0
A1
A2
SCL
SDA
VDD
Vss
INPUT
FILTER
POWER-ON
NOTE: ALL I/Os ARE SET TO INPUTS AT RESET
RESET
2
C/SMBUS
I
CONTROL
8-BIT
WRITE pulse
READ pulse
INPUT/
OUTPUT
PORTS
LP
FILTER
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
Vcc
INT
SU01783
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N2WKD/YKD
CABINET PARTS LIST FOR MODELS CE27/32LD6-B-00
CE27LD6-B-00
CABINET PARTS
1 665 000 6003 CABINET FRONT-N2WJB
2 610 319 4547 BUTTON UNITED-N2W
3 610 327 9800 CABINET BACK-N2WKD-A
4 610 319 4622 DOOR-N2WJ
5 665 000 6331 DEC SHEET BTM - N2WKB
6 610 319 6572 MOUNTING BRKT-N2WJ
7 610 326 7265 STAND FRAME-N2WKB
8 665 000 6355 STAND BASE-N2WKD
9 610 319 4806 TERMINAL BASE-N2WJ
10 645 076 4936 BADGE,SANYO*53.5X12L53.5
11 645 079 9488 PAD (BLACK) RICHCO RBS-24
12 610 325 7280 CHASSIS BASE-N2WJD
13 610 319 4639 DEC IND-N2WJ
14 610 315 1359 GASKET C-N2HE 80X13X13
15 610 320 2815 HOLDER FAN-N2WJ
Note: Parts order must contain Service Ref. No., Part No., and descriptions.
1/17
2
13
10
ACCESSORIES
16 645 079 4407 ASSY,REMOCON JXPTA
665 000 5990 BATT ENERGIZER R03SHP2VP
665 000 6348 INST MANUAL-27"/32"WALLMT
665 000 5372 INST MANUAL-N2WKD/YKD
665 000 5389 QUICK GUIDE-N2WKD/YKD
CE32LD6-B-00
CABINET DIFFERENCES ONLY
17 665 000 5976 CABINET FRONT-N2YJB
18 610 327 9718 CABINET BACK-N2YKD-B
19 610 328 0837 CHASSIS BASE-N2YJD
20 610 314 7130 GASKET A-N2HE
7
4
8
15
6
12/19
9
Item Part No. Description Item Part No. Description
2/18
11(X 4)
16
STAND COVER
610 314 5044
DS
N2WKD/YKD
-14-
CABINET DISASSEMBLY
CABINET BACK DISASSEMBLY
1. Remove 11 screws(A) for 27”/32”
2. Pull out the cabinet back.
(A)
(A)
(A)
(A)
(A)
(A)
(A)
(A)
(A)
(A)
(A)
-15-
N2WKD/YKD
PIN DESCRIPTION OF SEMICONDUCTORS
● Diode
● Transistor/FET
● IC
FET
● Diode
K
A
● Transistor/FET
K
A
K
AA
KK
A
K
K
K: Cathode
A: Anode
A
A
C
B
C
E
● IC
1
Index
C1
3
E
C2
Vdd
2
1
C1
C2
B1 B2
E
B2
GND
C
E
2
C
E
B
C
3
E
B
B
2
3
1
E
C1
CBE
C2
B2
E
3
2
C
B
B1
1
C
BE
B1
RESET
Index
1
2
N
1
2
N
C2
E2 C1
B1
B2
B1
B2
(IN)
E1
1
(GND)
2
4
5
6
Index
E1
C1
C2
E2
3
(OUT)
C: Collector
B: Base
E: Emitter
G
3
2
1
Index
D: Drain
G: Gate
S: Source
S
G
D
S
D
3
21
5
4
Index
N
1
Index
Index
Index
N
1
N
1
N
1
Index
N
1
N
1
Index
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