Funai 22FL532/10 Schematic

Page 1
SERVICE MANUAL
– EXTERNAL VOLUME –
This Service Manual is for the 22FL532/10 (A2370EP) model. For the 22FL532/10 (A2370EP) model, the letter (A2370EP) is printed on the Serial Number Label on the back of the unit. Refer to the Serial Number Label below.
Serial No. Label
"A2370EP"
22FL532/10
Page 2
22 COLOR LCD TELEVISION
22FL532/10
TABLE OF CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Important Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Cabinet Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
How to Initialize the LCD Television. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
Electrical Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
The LCD panel is manufactured to provide many years of useful life. Occasionally a few non active pixels may appear as a tiny spec of color. This is not to be considered a defect in the LCD screen.
Page 3

SPECIFICATIONS

< TUNER >
VHS/UHF Input ----------- 75 unbal., IEC Connector Center IF ------------------- SECAM-L 38.9MHz, SECAM-L’ 33.9MHz
Description Condition Unit Nominal Limit
1. Video S/N 80 dB --- 40
2. Audio S/N --- dB --- 40/40
< LCD PANEL >
Description Condition Unit Nominal Limit
1. Number of Pixels
2. Viewing Angle
<DVB-T>
Description Condition Unit Nominal Limit
1.
RECEIVED FREQ.RANGE (-60dBm, 45ch.) *1, *2
2. INPUT DYNAMIC RANGE (mix./max)
3. C/N PERFORMANCE
(-50dBm)
4. MULTIPATH (-50dBm)
a. Performance with
short delay echoes
b. Performance with
long delay echoes
Horizontal
Ver ti ca l
Horizontal
Ver ti ca l
+
-
c:*1 VHF HIGH 8ch.
UHF 45ch.
d:*2 VHF HIGH 8ch.
UHF 45ch.
c:*1 VHF HIGH 8ch.
UHF 45ch.
d:*2 VHF HIGH 8ch.
UHF 45ch.
UHF 45ch.
c:*3 d:*4 c:*3 d:*4
pixels pixels
kHz kHz
dBuV dBuV
dBuV dBuV
dB dB
dB dB
dB dB dB dB
1366
768
° °
-85 to 85
-80 to 80
1000
900
25/101 25/101
18/101 18/101
15 15
11 11
18.7
14.0
19.1
13.0
---
---
-75 to 75
-70 to 70
500 167
28/98 29/98
21/98 21/98
1818
1414
23202318
*1: modulation parameters = [8k 64QAM CR=2/3 GI=1/32] *2: modulation parameters = [8k 16QAM CR=3/4 GI=1/8] *3: modulation parameters = [2k 64QAM CR=2/3 GI=1/32] *4: modulation parameters = [2k 16QAM CR=3/4 GI=1/32]
< VIDEO >
Description Condition Unit Nominal Limit
1. Over Scan
2. Color Temperature
3. Resolution
4. Brightness AT 100% WHITE FIELD cd/m
Horizontal
Vert i c a l
AT 70% WHITE FIELD
x y
Horizontal
Vert i c a l
1-1 A2370SP
line line
% %
°K 9000
2
5 5
0.286
0.295
400 350
170 ---
---
---
--­±0.015 ±0.015
---
---
Page 4
< AUDIO >
All items are measured across 16 load at speaker output terminal.
Description Condition Unit Nominal Limit
1. Audio Output Power
2. Audio Distortion 500mW: Lch/Rch % 1.5/1.5 3.0/3.0
3. Audio Freq. Response
4. Audio S/N Lch/Rch dB ---
Note: Nominal specifications represent the design specifications. All units should be able to approximate these.
Some will exceed and some may drop slightly below these specifications. Limit specifications represent the absolute worst condition that still might be considered acceptable. In no case should a unit fail to meet limit specifications.
input 500mVrms
VOL MAX
-
6dB: Lch
-
6dB: Rch
W 1.5W/1.5W 1.3W/1.3W
Hz Hz
---
---
---
---
45/45
1-2 A2370SP
Page 5

IMPORTANT SAFETY PRECAUTIONS

Prior to shipment from the factory, our products are strictly inspected for recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.
Safety Precautions for LCD TV Circuit
1. Before returning an instrument to the customer, always make a safety check of the
entire instrument, including, but not limited to, the following items:
a. Be sure that no built-in protective devices are
defective and have been defeated during servicing. (1) Protective shields are provided on this chassis to protect both the technician and the customer. Correctly replace all missing protective shields, including any removed for servicing convenience. (2) When reinstalling the chassis and/or other assembly in the cabinet, be sure to put back in place all protective devices, including but not limited to, nonmetallic control knobs, insulating fishpapers, adjustment and compartment covers/shields, and isolation resistor/capacitor networks. Do not operate this instrument or
permit it to be operated without all protective devices correctly installed and functioning. Servicers who defeat safety features or fail to perform safety checks may be liable for any resulting damage.
b. Be sure that there are no cabinet openings
through which an adult or child might be able to insert their fingers and contact a hazardous voltage. Such openings include, but are not limited to, (1) spacing between the LCD module and the cabinet mask, (2) excessively wide cabinet ventilation slots, and (3) an improperly fitted and/or incorrectly secured cabinet back cover.
c. Antenna Cold Check - With the instrument AC
plug removed from any AC source, connect an electrical jumper across the two AC plug prongs. Place the instrument AC switch in the on position. Connect one lead of an ohmmeter to the AC plug prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and, if applicable, to the coaxial connector. If the measured resistance is less than 1.0 megohm or greater than 5.2 megohm, an abnormality exists that must be corrected before the instrument is returned to the customer. Repeat this test with the instrument AC switch in the off position.
d. Leakage Current Hot Check - With the
instrument completely reassembled, plug the AC line cord directly into a 230 V AC outlet. (Do not use an isolation transformer during this test.) Use a leakage current tester or a metering system that complies with American
National Standards Institute (ANSI) C101.1 Leakage Current for Appliances and Underwriters Laboratories (UL) 1410, (50.7). With the instrument AC switch first in the on position and then in the off position, measure from a known earth ground (metal water pipe, conduit, etc.) to all exposed metal parts of the instrument (antennas, handle brackets, metal cabinet, screw heads, metallic overlays, control shafts, etc.), especially any exposed metal parts that offer an electrical return path to the chassis. Any current measured must not exceed 0.5 milli-ampere. Reverse the instrument power cord plug in the outlet and repeat the test.
READING SHOULD NOT BE ABOVE 0.5 mA
LEAKAGE
DEVICE
BEING
TESTED
TEST ALL EXPOSED METAL SURFACES
ALSO TEST WITH PLUG REVERSED USING AC ADAPTER PLUG AS REQUIRED
ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE INSTRUMENT TO THE CUSTOMER OR BEFORE CONNECTING THE ANTENNA OR ACCESSORIES.
2. Read and comply with all caution and safety-
related notes on or inside the receiver cabinet, on the receiver chassis, or on the LCD module.
3. Design Alteration Warning - Do not alter or add to the mechanical or electrical design of this LCD TV receiver. Design alterations and additions, including, but not limited to circuit modifications and the addition of items such as auxiliary audio and/or video output connections, might alter the safety characteristics of this receiver and create a hazard to the user. Any design alterations or additions will void the manufacturer's warranty and may make you, the servicer, responsible for personal injury or property damage resulting therefrom.
CURRENT
TESTER
+
EARTH GROUND
_
2-1 LTVP_ISP
Page 6
4. Hot Chassis Warning -
a. Some TV receiver chassis are electrically
connected directly to one conductor of the AC power cord and maybe safety-serviced without an isolation transformer only if the AC power plug is inserted so that the chassis is connected to the ground side of the AC power source. To confirm that the AC power plug is inserted correctly, with an AC voltmeter, measure between the chassis and a known earth ground. If a voltage reading in excess of
1.0 V is obtained, remove and reinsert the AC power plug in the opposite polarity and again measure the voltage potential between the chassis and a known earth ground.
b. Some TV receiver chassis normally have 85V
AC(RMS) between chassis and earth ground regardless of the AC plug polarity. This chassis can be safety-serviced only with an isolation transformer inserted in the power line between the receiver and the AC power source, for both personnel and test equipment protection.
c. Some TV receiver chassis have a secondary
ground system in addition to the main chassis ground. This secondary ground system is not isolated from the AC power line. The two ground systems are electrically separated by insulation material that must not be defeated or altered.
5. Observe original lead dress. Take extra care to assure correct lead dress in the following areas: a. near sharp edges, b. near thermally hot parts-be sure that leads and components do not touch thermally hot parts, c. the AC supply, d. high voltage, and, e. antenna wiring. Always inspect in all areas for pinched, out of place, or frayed wiring. Check AC power cord for damage.
6. Components, parts, and/or wiring that appear to have overheated or are otherwise damaged should be replaced with components, parts, or wiring that meet original specifications. Additionally, determine the cause of overheating and/or damage and, if necessary, take corrective action to remove any potential safety hazard.
7. Product Safety Notice - Some electrical and mechanical parts have special safety-related characteristics which are often not evident from visual inspection, nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage, wattage, etc.. Parts that have special safety characteristics are identified by a ! on schematics and in parts lists. Use of a substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire, and/or other hazards. The product's safety is under review continuously and new instructions are issued whenever appropriate. Prior to shipment from the factory, our products are strictly inspected to confirm they comply with the recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.
2-2 LTVP_ISP
Page 7
Precautions during Servicing
A. Parts identified by the ! symbol are critical for
safety. Replace only with part number specified.
B. In addition to safety, other parts and assemblies
are specified for conformance with regulations applying to spurious radiation. These must also be replaced only with specified replacements. Examples: RF converters, RF cables, noise blocking capacitors, and noise blocking filters, etc.
C. Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
D. Use specified insulating materials for hazardous
live parts. Note especially:
1) Insulation Tape
2) PVC tubing
3) Spacers
4) Insulators for transistors.
E. When replacing AC primary side components
(transformers, power cord, etc.), wrap ends of wires securely about the terminals before soldering.
F. Observe that the wires do not contact heat
producing parts (heat sinks, oxide metal film resistors, fusible resistors, etc.)
G. Check that replaced wires do not contact sharp
edged or pointed parts.
H. When a power cord has been replaced, check that
5~6 kg of force in any direction will not loosen it.
I. Also check areas surrounding repaired locations.
J. Use care that foreign objects (screws, solder
droplets, etc.) do not remain inside the set.
K. When connecting or disconnecting the internal
connectors, first, disconnect the AC plug from the AC supply outlet.
L. When installing parts or assembling the cabinet
parts, be sure to use the proper screws and tighten certainly.
2-3 LTVP_ISP
Page 8
Safety Check after Servicing
Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original posi­tions. Afterwards, perform the following tests and con­firm the specified values in order to verify compliance with safety standards.
1. Clearance Distance
When replacing primary circuit components, confirm specified clearance distance (d) and (d') between sol­dered terminals, and between terminals and surround­ing metallic parts. (See Fig. 1)
Table 1 : Ratings for selected area
AC Line Voltage Clearance Distance (d), (d’)
220 to 240 V
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
3mm(d)
8mm(d’)
2. Leakage Current Test
Confirm the specified (or lower) leakage current be­tween B (earth ground, power cord plug prongs) and externally exposed accessible parts (RF terminals, an­tenna terminals, video and audio input and output ter­minals, microphone jacks, earphone jacks, etc.).
Chassis or Secondary Conductor
Primary Circuit
d' d
Exposed Accessible Part
Z
AC Voltmeter (High Impedance)
Fig. 1
Measuring Method : (Power ON)
Insert load Z between B (earth ground, power cord plug prongs) and exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See Fig. 2 and following table.
Table 2: Leakage current ratings for selected areas
AC Line Voltage Load Z Leakage Current (i)
2kRES.
Connected in
parallel
220 to 240 V
50k RES.
Connected in
parallel
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
i0.7mA AC Peak
i2mA DC
i0.7mA AC Peak
i2mA DC
One side of
B
Power Cord Plug Prongs
One side of power cord plug
prongs (B) to:
Antenna terminals
A/V Input, Output
Fig. 2
RF or
2-4 LTVP_ISP
Page 9

STANDARD NOTES FOR SERVICING

Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is indicated as shown.
To p Vi ew
Out
2. For other ICs, pin 1 and every fifth pin are indicated as shown.
Pin 1
3. The 1st pin of every male connector is indicated as shown.
Pin 1
Input
In
Bottom View
5
10
Pb (Lead) Free Solder
Pb free mark will be found on PCBs which use Pb free solder. (Refer to figure.) For PCBs with Pb free mark, be sure to use Pb free solder. For PCBs without Pb free mark, use standard solder.
Pb free mark
How to Remove / Install Flat Pack-IC
1. Removal
With Hot-Air Flat Pack-IC Desoldering Machine:
1. Prepare the hot-air flat pack-IC desoldering machine, then apply hot air to the Flat Pack-IC (about 5 to 6 seconds). (Fig. S-1-1)
Fig. S-1-1
2. Remove the flat pack-IC with tweezers while applying the hot air.
3. Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6)
4. Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)
CAUTION:
1. The Flat Pack-IC shape may differ by models. Use an appropriate hot-air flat pack-IC desoldering machine, whose shape matches that of the Flat Pack-IC.
2. Do not supply hot air to the chip parts around the flat pack-IC for over 6 seconds because damage to the chip parts may occur. Put masking tape around the flat pack-IC to protect other parts from damage. (Fig. S-1-2)
3. The flat pack-IC on the CBA is affixed with glue, so be careful not to break or damage the foil of each pin or the solder lands under the IC when removing it.
Hot-air Flat Pack-IC Desoldering
CBA
Masking Ta pe
Tweezers
3-1 TVP_SN
Machine
Flat Pack-IC
Fig. S-1-2
Page 10
With Soldering Iron:
1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3)
Flat Pack-IC
Desoldering Braid
Soldering Iron
Fig. S-1-3
2. Lift each lead of the flat pack-IC upward one by one, using a sharp pin or wire to which solder will not adhere (iron wire). When heating the pins, use a fine tip soldering iron or a hot air desoldering machine. (Fig. S-1-4)
With Iron Wire:
1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3)
2. Affix the wire to a workbench or solid mounting point, as shown in Fig. S-1-5.
3. While heating the pins using a fine tip soldering iron or hot air blower, pull up the wire as the solder melts so as to lift the IC leads from the CBA contact pads as shown in Fig. S-1-5.
4. Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6)
5. Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)
Note: When using a soldering iron, care must be
taken to ensure that the flat pack-IC is not being held by glue. When the flat pack-IC is removed from the CBA, handle it gently because it may be damaged if force is applied.
Sharp Pin
Fine Tip Soldering Iron
3. Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6)
4. Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)
Fig. S-1-4
To Solid Mounting Point
CBA
Hot Air Blower
or
Iron Wire
Soldering Iron
Fig. S-1-5
Fine Tip Soldering Iron
Flat Pack-IC
Tweezers
Fig. S-1-6
3-2 TVP_SN
Page 11
2. Installation
1. Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA so you can install a replacement flat pack-IC more easily.
2. The “ I ” mark on the flat pack-IC indicates pin 1. (See Fig. S-1-7.) Be sure this mark matches the pin 1 on the PCB when positioning for installation. Then presolder the four corners of the flat pack-IC. (See Fig. S-1-8.)
3. Solder all pins of the flat pack-IC. Be sure that none of the pins have solder bridges.
Example :
Pin 1 of the Flat Pack-IC is indicated by a " " mark.
Fig. S-1-7
Instructions for Handling Semi­conductors
Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1 M) that is properly grounded to remove any static electricity that may be charged on the body.
2. Ground for Workbench
Be sure to place a conductive sheet or copper plate with proper grounding (1 M) on the workbench or other surface, where the semi-conductors are to be placed. Because the static electricity charge on clothing will not escape through the body grounding band, be careful to avoid contacting semi-conductors with your clothing.
<Incorrect>
CBA
Presolder
Flat Pack-IC
Fig. S-1-8
<Correct>
1M
CBA
Grounding Band
1M
CBA
Conductive Sheet or Copper Plate
3-3 TVP_SN
Page 12

CABINET DISASSEMBLY INSTRUCTIONS

1. Disassembly Flowchart
This flowchart indicates the disassembly steps for the cabinet parts and the CBA in order to gain access to items to be serviced. When reassembling, follow the steps in reverse order. Bend, route and dress the cables as they were.
[3] Power Supply CBA Unit
[5] Speaker
[1] Rear Cover
[2] Stand Cover
Assembly
[6] Stand Holder
[8] LCD Panel
Assembly
[9] Rear Frame
[10] LCD Module
[11] Front Cabinet
[4] Digital Main CBA Unit
[7] Function CBA Unit
2. Disassembly Method
Step/
Loc.
Part
No.
[1] Rear Cover D1 8(S-1), 6(S-2) ---
Stand
[2]
Cover Assembly
Power
[3]
Supply CBA Unit
Digital Main
[4]
CBA UnitD2D5
[5] Speaker D3 --------------- ---
Stand
[6]
Holder
Function
[7]
CBA UnitD3D5
LCD Panel
[8]
Assembly
[9] Rear Frame D4 9(S-8), 2(S-9) 1,3
LCD
[10]
Module
Front
[11]
Cabinet
(1)
(2)
Fig.
No.
Removal Note
D1 2(S-3) ---
D2D53(S-4), CN1, CN2,
CN3, CN4, CN5
4(S-5), CN5, CN9, CN23, Jack Holder, Shield Box
D3 2(S-6), (S-7) ---
Sensor Lens 2,3
D3 --------------- 3
D4 --------------- 1,3
D4 --------------- 3
(3)
(4)
---
---
(5)
Note:
(1) Order of steps in procedure. When reassembling,
follow the steps in reverse order. These numbers are also used as the Identification (location) No. of parts in figures.
(2) Parts to be removed or installed.
(3) Fig. No. showing procedure of part location
(4) Identification of parts to be removed, unhooked,
unlocked, released, unplugged, unclamped, or desoldered. N = Nut, L = Locking Tab, S = Screw, H = Hex Screw, CN = Connector e.g. 2(S-2) = two Screws of (S-2), 2(L-2) = two Locking Tabs of (L-2)
(5) Refer to the following "Reference Notes in the
Ta b le . "
Precautions concerning the LCD Panel Assembly:
1. When you disassemble the LCD Panel Assembly
• Be careful not to scratch the Reflection Sheet with
the edge of Rear Frame when disassembling/ re-assembling it.
• Be careful not to drop any plastic chip on the
Reflection Sheet when/after you remove the Screws.
• Prohibit to put any external pressure on the
Reflection Sheet because the scratch on the back of the Reflection Sheet have direct repercussion on the display screen.
• Prohibit to put any external pressure on the Sheet
Holder or LED Heat Sink Assembly either because it also has repercussion on the display screen via the Reflection Sheet.
• You need to remove any visible dust from the
Reflection Sheet which creates the external pressure between the Reflection Sheet and the Sheet Holder/LED Heat Sink Assembly as a result.
• To prevent the Screw from being stripped, the screw
tightening torque should be 13.23 lbf·in(6 kgf·cm) for the Rear Frame Screw and 5.512 lbf·in(2.5 kgf·cm) for the LED Heat Sink Assembly Screw.
• Do not pull the FFC Cable and Board Cable
forcefully when you re-assemble.
4-1 A2370DC
Page 13
2. When you disassemble/re-assemble the Function CBA Unit on the Front Cabinet
• Detach the Function CBA Unit, which is attached on
the Front Cabinet with double-sided tape, without breaking it.
• When you put the Function CBA Unit back on the
New Front Cabinet, you need to use specified new double-sided tape and put the Function CBA Unit onto the New Front Cabinet with equal pressure to the Board. (The gap more than 0.015 inch (0.4 mm) between the Front Cabinet and Function CBA Unit will impair the sensor sensitivity.)
• Prepare for substitutional Function CBA Unit in case
you break it when you detach it from the Front Cabinet.
3. Performance Test after reassembling the LCD Panel Assembly
• After you swap any of the Front Cabinet, Rear Frame
or Function CBA Unit, you need to make sure that there is no Gomikami/Black Spot with foreign material or Mura/White Spot on the display screen.
• Make sure there is no malfunction on the display
screen by checking the White Mode and White 20% Mode in the Purity Check Mode.
• Check the operational sensitivity on Touch Sensor
Control Panel to make sure everything functions normally.
[2] Stand Cover Assembly
(S-1)
[1] Rear Cover
(S-1)
(S-2)
(S-1)
(S-2)
(S-3)
Fig. D1
4-2 A2370DC
Page 14
[4] Digital Main CBA Unit
Jack Holder
Shield Box
(S-5)
[3] Power Supply CBA Unit
(S-4)
(S-4)
Double-sided tape
(S-5)
[8] LCD Panel Assembly
[7] Function CBA Unit
*
[6] Stand Holder
Fig. D2
1
*
1
Sensor Lens
(S-6)
(S-7)
(S-6)
[5] Speaker
*1: Make sure to read all the precautions on page 4-1, 4-2 when you disassemble/re-assemble
the LCD Panel Assembly.
4-3 A2370DC
Fig. D3
Page 15
[11] Front Cabinet
1
*
LED Heat Sink Assembly
Sheet Holder
(S-8)
Reflection Sheet
FFC Cable
Cable
(S-9)
Sheet Holder
[10] LCD Module
[9] Rear Frame
(S-8)
1
*
(S-8)
1
*
*1: Make sure to read all the precautions on page 4-1, 4-2 when you disassemble/re-assemble
the LCD Panel Assembly.
Fig. D4
4-4 A2370DC
Page 16
TV Cable Wiring Diagram
To LCD Panel Assembly
CN4
Power Supply CBA Unit
CN2
To LCD Panel Assembly
Digital Main CBA Unit
CN5
CN2
CN1
To AC Cord
Function CBA Unit
CN1
CN3
CN5
CN3
CN24
CN23 CN9
To Speaker
Fig. D5
4-5 A2370DC
Page 17

ELECTRICAL ADJUSTMENT INSTRUCTIONS

General Note: “CBA” is abbreviation for “Circuit Board Assembly.”
Note: Electrical adjustments are required after
replacing circuit components and certain mechanical parts. It is important to perform these adjustments only after all repairs and replacements have been completed. Also, do not attempt these adjustments unless the proper equipment is available.
Test Equipment Required
1. Remote control unit
2. Color Analyzer, CA-310 (KONICA MINOLTA Luminance meter) or measuring instrument as good as CA-310.
How to set up the service mode:
Service mode:
1. Turn the power on.
2. Press [SOURCE], [2], [5], [8] and [0] buttons on the remote control unit in this order to enter the service mode. The Factory Setting menu appears in the screen.
Example:
The White Balance Adjustment should be performed when replacing the LCD Panel or Digital Main CBA.
White Balance Adjustment
Purpose: To mix red and blue beams correctly for
pure white.
Symptom of Misadjustment: White becomes bluish or reddish.
1. Operate the unit for more than 60 minutes.
2. Input the White Raster (70%=70IRE, 40%=40IRE).
INPUT SIGNAL
3. Enter the service mode.
4. Press [2] button on the remote control unit to display the “GENERAL SETTING” menu.
5. Select “0 W/B ADJUST” and press [OK] button to display the “W/B ADJUST” menu.
6. Select a color mode (“3 R-GAIN”, “5 B-GAIN”, “7 R-OFFSET” or “9 B-OFFSET”).
7. Set the color analyzer at the CHROMA mode and zero point calibration. Bring the optical receptor pointing at the center of the LCD-Panel.
To avoid interference from ambient light, this adjustment should be performed in a dark room.
Perpendicularity
L = 1 cm
INPUT: WHITE 70%, 40%
Note: The optical receptor must be set perpendicularly to the LCD Panel surface.
8. In each color mode, press [s] or [B] button to adjust the color temperature becomes 9000°K (x
=
0.286 / y= 0.295 ±0.002).
9. Select “10COPY ALL” and press [OK] button.
10. To cancel or to exit from the White Balance Adjustment, press [BACK] button.
Color Analyzer
5-1 LC10P(A2370EP)EA
Page 18

HOW TO INITIALIZE THE LCD TELEVISION

1. Turn the power on.
2. Enter the service mode. (Refer to page 5-1.)
- To cancel the service mode, press [BACK] button on the remote control unit.
3. Select “Factory Reset” and [OK] button on the remote control unit. The TV set will go off and turn back on automatically when initialization completes.
6-1 LC10P_INT
Page 19

FIRMWARE RENEWAL MODE

Equipment Required
a. USB storage device b. Remote Control Unit
Firmware Update Procedure
[Preparation]
1. Prepare USB storage device.
2. Copy F/W-file to USB storage device. Note: Make sure to use the blank USB Storage.
3. Make sure that the F/W-file’s name is “BIN_MSD_309.bin”.
[Update procedure]
1. Turn the power on.
2. Insert USB storage device with F/W to TV set.
3. Press the [MENU] button on the remote control unit to display Menu.
4. Select “SETUP”.
5. Select “Software Update (USB)” and press [OK] button. The message “Are you sure?” will appear in the screen.
6. Press [LEFT] button to select “YES”.
7. Updating starts.
Note: Do not turn off the TV set and do not remove the USB storage device while this procedure.
8. The TV set will go off and turn back on automatically when update completes.
[Confirmation of update]
1. Enter the service mode. (Refer to page 5-1.)
2. Press [4] button on the remote control unit to display the “SW INFORMATION”.
3. Check the “Build Time” section.
7-1 LC10P_FW
Page 20
FLOW CHART NO.1
The power cannot be turned on.

TROUBLESHOOTING

Is approximately +5V voltage supplied to Pin(1) of CN2 on the Power Supply CBA Unit?
Ye s
When touching power button on the unit, is the LED turning off?
Ye s
When pressing power switch on the remote control unit, is the LED turning off?
Ye s
Is approximately CN2 on the Digital Main CBA Unit?
Replace Power Supply CBA Unit.
FLOW CHART NO.2
The key operation is not functioning.
Is approximately +5V voltage supplied to Pin(1) of CN1 on the Function CBA Unit?
+3.3V voltage supplied to Pin(2) of
Ye s
Ye s
No
No
No
No
No
Check F101 and service it if defective. Or replace Power Supply CBA Unit.
See FLOW CHART NO.2 <The key operation is not functioning.>
See FLOW CHART NO.3 <No operation is possible from remote control unit. (Operation is possible from the unit.)>
Replace Digital Main CBA Unit.
Replace Power Supply CBA Unit.
Replace Function CBA Unit.
FLOW CHART NO.3
No operation is possible from remote control unit. (Operation is possible from the unit.)
gital
No
No
No
Replace Power Supply CBA Unit.
Replace Function CBA Unit.
Check the connector (CN1, CN9), wire assembly and service it if defective. Or replace Function CBA Unit.
V voltage supplied to Pin(1) of CN1
approximately +
Is on the Function CBA U
Is the "L" pulse sent out to Pin(3) of CN1 on the Function CBA Unit?
Is the "L" pulse sent out to Pin(4) of CN9 on the Di Main CBA Unit?
Replace Digital Main CBA Unit.
5
nit?
Ye s
Ye s
Ye s
8-1 A23F0TR
Page 21
FLOW CHART NO.4
Picture does not appear normally.
approximately +5
Is on the Digital Main CBA Unit?
approximately +
Is CN3 and Pin(10) of CN2 on the Digital Main CBA Unit?
CL1001, C Assembly ma Check and repla
FLOW CHART NO.5
Audio is not outputted normally.
approximately +
Is CN24 on the
Are the audio signals outputted to Pin(1, 4) of CN23
L3006, Digital Main CBA Unit or LCD Panel
on the
V voltage supplied to Pin(1) of CN2
Ye s
12V voltage supplied to Pin(1, 2) of
Ye s
y be defective.
ce these parts.
24V voltage supplied to Pin(1, 2) of
Digital Main CBA Unit
Digital Main CBA Unit
?
Ye s
?
Ye s
No
No
No
No
Replace Power Supply CBA Unit.
Replace Power Supply CBA Unit.
Replace Power Supply CBA Unit.
Replace Digital Main CBA Unit.
Speakers may be defective. Check and replace these parts.
8-2 A23F0TR
Page 22

BLOCK DIAGRAMS

System Control Block Diagram
POWER
TV/AV
MENU
CH UP
CH DOWN
VOL UP
VOL DOWN
9
8
MENU
CH UP
CH DOWN
D15
POWER
7
VOL UP
10
VOL DOWN
RE2
SENSOR
REMOTE
121113
POWER
REMOTE
IR-KEY
U1
(TOUCH SENSOR)
20
19
TV/AV
FUNCTION CBA UNIT
TO POWER SUPPLY
BLOCK DIAGRAM
PS-ON
TO LED BACKLIGHT DRIVE
BLOCK DIAGRAM
BACKLIGHT-SW
BACKLIGHT-ADJ
POWER SUPPLY CBA UNIT
CN1
REMOTE43
LED-R22
IR-KEY65
CN9
H5
G5
G4
KEYB
LED-R
REMOTE
SCL
SDA
T1 (TUNER UNIT)
4
5
AE4
AD4
TUNER-SCL
TUNER-SDA
STB+5V
CN2
CN3
PS-ON
BACKLIGHT-SW
22
CN2
Q6
M+5V
Q9
Q10
C5
POW-EN
BACKLIGHT-ADJ
33
44
CN3
Q3
Q2
STB+3.3V
RESET
L5
BACKLIGHT-SW
E6
BACKLIGHT-ADJ
E5
RESET
U7
(MAIN MICRO CONTROLLER)
AMP-MUTE
Y9
AMP-MUTE
TO AUDI O
BLOCK DIAGRAM
9-1
SPI-SCK
SPI-SDI
SPI-SDO
SPI-CSN
A2B3A3
A4
652
1
SI
CS
SO
SCK
U9 (MEMORY)
Y1
XTAL-OUT
XTAL-IN
AE2
AD1
24MHz
OSC
DIGITAL MAIN CBA UNIT
A2370BLS
Page 23
Video Block Diagram
AUDIO SIGNAL
TO DIGITAL SIGNAL
PROCESS
BLOCK DIAGRAM
TO DIGITAL SIGNAL
PROCESS
BLOCK DIAGRAM
VIDEO SIGNAL
IF-AGC
DIF-OUT2
DIF-OUT1
VIDEO-B
VIDEO-R
VIDEO-G
RGB-VIDEO-IN
RGB-VIDEO-OUT
VIDEO-IN
COM-Y-IN
COM-Pb-IN
COM-Pr-IN
T1
(TUNER UNIT)
9
11
10
IF-AGC
DIF-OUT1
DIF-OUT2
CN4
SCART JACK
15
20
11
VIDEO-R
VIDEO-G
RGB-VIDEO-IN
BUFFER
Q12, Q26
7
19
VIDEO-B
RGB-VIDEO-OUT
CN17
VIDEO-IN
CN8
COMPONENT
-Y IN
COMPONENT
-Pb-IN
COMPONENT
-Pr-IN
DIGITAL MAIN CBA UNIT
9-2
A2370BLV
Page 24
Audio Block Diagram
AUDIO SIGNAL
TO DIGITALSIGNAL
PROCESS
BLOCK DIAGRAM
SPDIF
AUDIO(L)
AUDIO(R)
PC-AUDIO(L)
PC-AUDIO(R)
RGB-AUDIO(L)-OUT
RGB-AUDIO(R)-OUT
AMP(L)-OUT
RGB-AUDIO(L)-IN
RGB-AUDIO(R)-IN
AMP(R)-OUT
TO SYSTEM
CONTROL
BLOCK DIAGRAM
AMP-MUTE
AP+5V
DIGITAL MAIN CBA UNIT
19
DRIVE PWM
U13 (AUDIO AMP)
11,12
32DRIVE PWM
39,40
Q23
Q24
34
CONTROL LOGIC
CN19
DIGITAL
CN17
AUDIO-OUT
(COAXIAL)
AUDIO(L)-IN
AUDIO(R)-IN
CN26
PC-AUDIO-IN
CN4
SCART JACK
3
6
2
RGB-AUDIO(L)-IN
RGB-AUDIO(R)-IN
RGB-AUDIO(L)-OUT
1
RGB-AUDIO(R)-OUT
9-3
CN13
HEADPHONE
JACK
CN23
SP(L) 1
SP-GND 3
SP-GND 2
SPEAKER
L-CH
SP(R) 4
SPEAKER
A2370BLA
R-CH
Page 25
Digital Signal Process Block Diagram
LCD PANEL
ASSEMBLY
LVDS-ED0(+)
LVDS-ED0(-)
LVDS-ED1(+)
LVDS-ED1(-)
LVDS-ED2(+)
LVDS-ED2(-)
LVDS-ED3(+)
LVDS-ED3(-)
LVDS-CE(+)
LVDS-CE(-)
27
28
AUDIO SIGNAL
LVDS-OD3(-)
17
CN5
LVDS-OD3(+)
19
20
18
22
23
21
242930
TO VIDEO
BLOCK DIAGRAM
79461
TMDS-D0(-)
TMDS-D0(+)
TMDS-D1(+)
HDMI-IN2
CN12
3
TMDS-D1(-)
TMDS-D2(-)
TMDS-D2(+)
101216
15
SCL
SDA
TMDS-CLOCK(-)
TMDS-CLOCK(+)
VIDEO SIGNAL
U7 (DIGITAL SIGNAL PROCESS)
T1
T3
W2
AC22
R2
AE22
AD21
U3P2N2
A/D
AC20
CONVERTER
SW
M1
AD20
AA5
AE20
(SDRAM)
RGB-VIDEO-OUT
DQ(0-15)
U4
AE19
AC19
M3
LVDS
L3
AD18
TX
K3
AC17
AD19
PC-HS
PC-VS
N4N5N6
AC18
VGA-SDA
VGA-SCL
P6
DIGITAL
SIGNAL
PROCESS
CI CONTROL
DESCRAMBLER
/TS INTERFACE
V3
MA-DQ(0-15)
DAC
DEMODULATOR
/MPEG DECODER
IF-AGC
R4V6R5
AA2
AA3
AD3
(SDRAM)
A(0-13)
U6
MA-A(0-13)
U5
AA6
DQ(0-15)
A(0-13)
MB-DQ(0-15)
MB-A(0-13)
AUDIO I/F
T6
Y5
V1V2P5
U6
E3
D2
VIDEO
DECODER
AUDIO
DECODER
H3
G2
F3E2F1
J3H2J1
F2
D1
HDMI I/F
J2
G1
J6
L6
D3
HDMI SW
G3
M5
M4
COM-Y-IN
VIDEO-IN
COM-Pb-IN
VIDEO-R
VIDEO-G
COM-Pr-IN
TO VIDEO
BLOCK
DIAGRAM
VIDEO-B
RGB-VIDEO-IN
PC-RGB-IN
CN16
RED
GREEN
1
2
BLUE
3
HSYNC
VSYNC
13
CI-D(0-7)
CI-A(0-14)
DIGITAL MAIN CBA UNIT
AMP(L)-OUT
AMP(R)-OUT
AUDIO(L)
AUDIO(R)
PC-AUDIO(L)
PC-AUDIO(R)
RGB-AUDIO(L)-OUT
RGB-AUDIO(R)-OUT
TO AUDIO
BLOCK
RGB-AUDIO(L)-IN
DIAGRAM
DIF-OUT1
IF-AGC
DIF-OUT2
DATA
CLOCK
12
15
14
CI
CARD
SLOT
CN10
TO VIDEO
BLOCK
DIAGRAM
9-4
RGB-AUDIO(R)-IN
SPDIF
TMDS-D0(+)
TMDS-D0(-)
TMDS-D1(+)
79461
TMDS-D1(-)
TMDS-D2(+)
TMDS-D2(-)
3
HDMI-IN1
CN11
SDA
SCL
TMDS-CLOCK(+)
TMDS-CLOCK(-)
101216
15
A2370BLD
Page 26
LED Backlight Drive Block Diagram
LCD PANEL
ASSEMBLY
LED16
LED-VCC4
CN4
LED27
LED32
LED41
DRIVE1
U401(LED BACKLIGHT DRIVER)
Q401
DRIVE214DRIVE316DRIVE4
OVP
3
7136
CONTROL
LOGIC
5
BACKLIGHT-SW
1
POWER SUPPLY CBA UNIT
12
BACKLIGHT-ADJ
VDRV (+24V)
9-5
TO SYSTEM CONTROL
BLOCK DIAGRAM
A2370BLLD
Page 27
Power Supply Block Diagram
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
AMP+12V
+12V
M+5V
STB+5V
+12V
PANEL+5V
DIGITAL MAIN CBA UNIT
CN24
CN5
Q103
1,2
AMP+12V1,2
SW+12V
CN3
CN3
U104
1,2+12V1,2
REG.
SHUNT
Q104
CN2 CN2
SW+5V
VDRV
1
10+12V10
5-8
STB+5V1
+5V5-8
Q201
TO SYSTEM CONTROL
BLOCK DIAGRAM
PS-ON
Q202
Q204
Q203
8
7
T101
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F101) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
CAUTION !
For continued protection against fire hazard,
replace only with the same type fuse.
HOT CIRCUIT. BE CAREFUL.
6
BRIDGE
BD1-BD4
LINE
LF102
LINE
LF101
F101
T5A L 250V
1
CN1
RECTIFIER
FILTER
FILTER
2
11
5
4
9
12
10
3
1
HV
U101
(SWITCHING CONTROL)
SWITCHING
Q101
844
GATE
SENS
14
(FEED BACK)
U102
2
FB
3 2
7
VCC
U103
REG.
SHUNT
HOT COLD
POWER SUPPLY CBA UNIT
CN1
AC CORD
9-6
A2370BLP
Page 28
1
CN5
V-IN+5V
CL3006
2
V-IN+5V
V-IN+5V
4
GND
GND
735
6
GND
LVDS-OD0(-)

WIRING DIAGRAM

8
9
101513
LVDS-OD1(-)
LVDS-OD0(+)
LVDS-OD1(+)
12
11
GND
LVDS-OD2(-)
LVDS-OD2(+)
14
GND
LVDS-CO(-)
17
16
LVDS-CO(+)
LVDS-OD3(-)
19
20
18
LVDS-ED0(-)
LVDS-ED0(+)
LVDS-OD3(+)
21
23
2425262728293031323334353637383940
22
LVDS-ED2(-)
LVDS-ED1(-)
LVDS-ED2(+)
LVDS-ED1(+)
GND
GND
LVDS-CE(-)
LVDS-CE(+)
GND
LVDS-ED3(-)
LVDS-ED3(+)
GND
NU
CON1
VSEL1
VSEL2
LVDS-ED4(-)
LVDS-OD4(-)
LVDS-OD4(+)
LVDS-ED4(+)
LCD PANEL ASSEMBLY
DIGITAL MAIN CBA UNIT
CL1001
LED4
LED3NULED-VCCNULED1
1234567
CN4
123456789
CN2
CL2
STB+5V
PS-ON
GND
GND
+5V
+5V
12345
CN2
6
+5V
7
+5V
8
GND
9
LED2
10
+12V
10
POWER SUPPLY
CBA UNIT
CN3
CL3
CN3
234
1
+12V
+12V
BACKLIGHT-SW
23456
1
BACKLIGHT-ADJ
5
GND
6
GND
1
CN5
CL24
AMP+12V
1
CN24
234
AMP+12V
GND
GND
234
CN1
1 2
CN1
AC CORD
SPEAKER
CL23
TUNER UNIT
L-CH
CN23
1
SP(L)
SP-GND
SP-GND
432
SP(R)
SPEAKER
R-CH
CN1
CL9
CN9
+5V
1
1
+5V
LED-R
REMOTE
3
2
3
2
LED-R
LED-G
GND
REMOTE
IR-KEY
GND
6
645
GND
IR-KEY
FUNCTION CBA UNIT
GND
745
COMPONENT
-Y-IN
COMPONENT
-Pb-IN
VIDEO-IN
COMPONENT
-Pr-IN
AUDIO(L)-IN
AUDIO(R)-IN
REAR
HDMI-IN1
HDMI-IN2
10-1
HEADPHONE
JACK
SCART JACK
DIGITAL
AUDIO-OUT
(COAXIAL)
PC-RGB-IN
USB JACK
SIDE PC-AUDIO-IN
CI CARD
SLOT
A2370WI
Page 29
Cabinet

EXPLODED VIEWS

A19
LCD Module
L3
A1
CL1001
CL3006
L51
L51
L13
L3
L3
A2
LCD1
CL3
CL2
L3
CL24
Digital Main CBA Unit
CL9
CL23
B6
L13
A14
B18
B17
A9
Function CBA Unit
See Electrical Parts List for parts with this mark.
Power Supply CBA Unit
CN1
Stand Cover Assembly
B9
Speaker
L13
L14
SSK1
L3
Speaker
A18
L14
A3
L14
L3
L14
L3S7
11-1 A2370CEX
Page 30
Packing
Some Ref. Numbers are not in sequence.
Ta pe
X3 A23 X7X4SSK1
Stand Cover Assembly
X2
Ta pe
S4
S3
X1
S6
Packing Tape
S4
S7
S1
11-2 A2370PEX
Packing Tape
Page 31

MECHANICAL PARTS LIST

PRODUCT SAFETY NOTE: Products marked with a
! have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don’t degrade the safety of the product through improper servicing.
NOTE: Parts that are not assigned part numbers (---------) are not available.
Ref. No. Description Part No.
X3 REMOTE CONTROL NH217RD NH217RD
Ref. No. Description Part No.
STAND COVER ASSEMBLY A2370EW 1ESA31997
A3 REAR COVER A2370EP 1EM127016
A9 SENSOR LENS A2170UT 1EM332157
A14 JACK HOLDER A23F0EP 1EM227064
A18! RATING LABEL A2370EP ----------
A19 POP LABEL A23F0EP ----------
B6 SHIELD BOX A23F0EP 1EM127014
B9 STAND HOLDER A2370EP 1EM127018
B17 WALL MOUNT BRACKET A11N0UH 1EM434637
B18 WALL MOUNT COVER A2170UT 1EM332137
L3 SCREW P-TIGHT 3X10 BIND HEAD+ GBHP3100
L13 SCREW S-TIGHT M3X6 BIND HEAD+ GBJS3060
L14 S-TIGHT SCREW M3X6 BIND HEAD+BLACK GBHS3060
SSK1 STAND SCREW KIT A2370EP 1ESA32286
CL2 WIRE ASSEMBLY 10PIN WX1A2370-101
CL3 WIRE ASSEMBLY 6PIN WX1A2370-102
CL9 WIRE ASSEMBLY 6PIN SENSOR WX1A2370-107
CL23 WIRE ASSEMBLY SP 4PIN WX1A2370-104
CL24 WIRE ASSEMBLY 4PIN WX1A2370-103
SPEAKER MAGNETIC 8OHM/3.5W S0307F19 DS08070XQ006
PACKING
S1 CARTON A2370EP 1EM332898
S3 STYROFOAM TOP A2370EP 1EM029127
S4 STYROFOAM BOTTOM A2370EP 1EM029128
S6 SET BAG A1777UT 1EM332797
S7 SERIAL NO. LABEL L9750UA ----------
ACCESSORIES
A23 ENERGY LABEL A2370EP ----------
X1 BAG POLYETHYLENE 235X365XT0.03 0EM408420A
X2! OWNERS MANUAL(SIMPLE) A23F0EP 1EMN29102A
X4 BATTERY DRY R03REL/2PA XB00M00MS001
X7 SAFETY AND WARRANTY BOOK A23F0EP 1EMN29103
LCD PANEL ASSEMBLY
Ref. No. Description Part No.
LCD1 LCD PANEL ASSEMBLY
A1 FRONT CABINET A2370EP 1EM127015
A2 REAR FRAME PAINT A2170UT 1EM127113
CL1001 WIRE ASSEMBLY 7PIN FFC WX1U2A70-F01 WX1U2A70-F01
CL3006 LVDS WIRE LVDS WIRE WX1A2370-136
L3 SCREW P-TIGHT 3X10 BIND HEAD+ GBHP3100
L51 SCREW M3X4 M3X4 BIND+ (B-NI) SBH33040
Consists of the following
LCD MODULE ----------
2012/03/28 13-1 A2370CA.fm
U2A70FA
Page 32

ELECTRICAL PARTS LIST

PRODUCT SAFETY NOTE: Products marked with a
! have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing.
NOTES:
1. Parts that are not assigned part numbers (---------) are not available.
2. Tolerance of Capacitors and Resistors are noted with the following symbols.
C.....±0.25% D.....±0.5% F.....±1%
G.....±2% J......±5% K.....±10%
M.....±20% N.....±30% Z.....+80/-20%
Ref. No. Description Part No.
DIGITAL MAIN CBA UNIT UPBMATCVT003
POWER SUPPLY CBA UNIT UPBPSPSTP003
FUNCTION CBA UNIT UPB000CVT001
CN1! AC CORD W/O A GND WIRE CEE/1680/NO/
! AC CORD W/O A GND WIRE CEE/1680/NO/
! AC CORD W/O A GND WIRE CEE/1680/NO/
T1 TUNER UNIT DT58CT-2-E UTNPSGTCL001
BLACK or
BLACK or
BLACK
WAE1620LW003
WAE162LTE001
WAE162ZHN002
2012/03/28 14-1 A2370EL.fm
Page 33
22FL532/10
A2370EP
2012-04-04
Ver.1
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