FUNAI LCD-C32B7 User manual

SERVICE MANUAL
This service manual shows only the differences between
the model LCD-C32B7 and the original model LCD-C3206.
All other information is described in the service manual
of the model LCD-C3206.
32″COLOR LCD TELEVISION
LCD-C32B7
TABLE OF CONTENTS
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Schematic Diagrams / CBA’s and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Different parts from the original model (LCD-C3206) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
SUPPLEMENT

1-1
System Control Block Diagram
L5925BLS
BLOCK DIAGRAMS
IC101 (TV MICRO CONTROLLER)
IC103 (MEMORY)
AUDIO-MUTE
123
VOLUME420 SCL14 10 SDA15 9
KEY SWITCH
CN104ACN104B
CN111
BACKLIGHT-SW
13 11
BACKLIGHT-ADJ
12 12
CN101ACN101B
P-ON-H118 6 P-ON-H217 7 P-ON-H316 8
CN102ACN102B
RTC-IN
KEY-IN144
CN11B CN11A
17
LED-2 51 LED-1
SDA
SCL
SDA
SCL
SDA
SDA SCL WP
SCL
SDA
SCL
BUS-OPEN
37
28 27 26
AUDIO-MUTE
VOLUME
77
1
5 6 7
KEY-IN1
93
AUDIO-MUTE
VOLUME
P-ON-H1 59 P-ON-H2 P-ON-H3
56 57
P-ON-H1 P-ON-H2 P-ON-H3
BACKLIGHT-SW
BACKLIGHT-ADJ
52 22
AL+5V
XIN XOUT
11 13
RESET
X100
RESET
10MHz OSC
10
IC102
45
TO AUDIO BLOCK DIAGRAM TO VIDEO SELECTOR BLOCK DIAGRAM
BACKLIGHT-ADJ
BACKLIGHT-SW
TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM
TO POWER SUPPLY BLOCK DIAGRAM
MAIN CBADIGITAL MAIN CBA UNIT
Q508
DRIVE
Q507
DRIVE
FUNCTION CBA
Q463
DRIVE
Q462 DRIVE
TO INVERTER BLOCK DIAGRAM
REMOTE SENSOR
D52D51
POWER POWER
REMOTE82 LED-235 LED-144
RCV51
CN15
LED CBA

1-2
Audio Block Diagram
L5925BLA
AUDIO SIGNAL
SP801 SPEAKER L-CH
CLN52
CN16CN54 CN52
CN53
SP(L) 2
SP-GND 1
SP802 SPEAKER R-CH
CLN53
SP(R) 2
SP-GND 1
SP(L)44 SP(R)33
HDMI AUDIO(L)-IN HDMI AUDIO(R)-IN
JK201 JK202
HDMI(L) CN103B CN103A HDMI(R)
TU31 (TUNER UNIT)
SIF
IC851 (SOUND PROCESSOR)
SDA
L-CH R-CH
SCL
HDMI(L)21 3 HDMI(R)20 4 HDMI-AUDIO(L)
23 1
HDMI-AUDIO(R)
22 2
COMPONENT AUDIO(R)-IN COMPONENT AUDIO(L)-IN
JK701
AUDIO(R)-IN3 AUDIO(L)-IN3
JK702
IF SIGNAL PROCESS
IC701 (AUDIO SELECTOR)
IC801 (AUDIO AMP)
317 2 30AUDIO 6 43
I2C I/F
I2C I/F
AMP
13 12
93 91 44 45 89 87 85 81 79 94 92 90 88 86 82 80
AUDIO SW
(L-CH)
AUDIO SW
(R-CH)
MUTE
CONTROL
VOLUME
CONTROL
611
96 98
100
2 12
AMP
97 99
1
5 7
WF10
DIGITAL MAIN CBA UNIT
LED CBA
MAIN CBA
TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM
AUDIO-MUTE
VOLUME
TO SYSTEM CONTROL BLOCK DIAGRAM
AUDIO(L)-OUT1 AUDIO(R)-OUT1 AUDIO(L)-OUT2 AUDIO(R)-OUT2
JK704 (SCART)
3
22
1
24
AUDIO(L)-IN1
AUDIO(R)-IN2
AUDIO(R)-IN1
AUDIO(L)-IN2
JK704 (SCART)
6
27
23
2
TO SYSTEM CONTROL BLOCK DIAGRAM

2-1 LC4P_SC
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS
Standard Notes
WARNING
Many electrical and mechanical parts in this chassis
have special characteristics. These characteristics
often pass unnoticed and the protection afforded by
them cannot necessarily be obtained by using
replacement components rated for higher voltage,
wattage, etc. Replacement parts that have these
special safety characteristics are identified in this
manual and its supplements; electrical components
having such features are identified by the mark “!” in
the schematic diagram and the parts list. Before
replacing any of these components, read the parts list
in this manual carefully. The use of substitute
replacement parts that do not have the same safety
characteristics as specified in the parts list may create
shock, fire, or other hazards.
Notes:
1. Do not use the part number shown on these
drawings for ordering. The correct part number is
shown in the parts list, and may be slightly
different or amended since these drawings were
prepared.
2. All resistance values are indicated in ohms
(K = 103, M = 106).
3. Resistor wattages are 1/4W or 1/6W unless
otherwise specified.
4. All capacitance values are indicated in µF
(P = 10-6 µF).
5. All voltages are DC voltages unless otherwise
specified.

2-2 LC4P_SC
LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON
THE FOLLOWING PAGES:
1. CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE
FUSE.
2. CAUTION:
Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) is blown, first 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.
3. Note:
1. Do not use the part number shown on the drawings for ordering. The correct part number is shown in the
parts list, and may be slightly different or amended since the drawings were prepared.
2. To maintain original function and reliability of repaired units, use only original replacement parts which are
listed with their part numbers in the parts list section of the service manual.
4. Voltage indications on the schematics are as shown below:
Plug the TV power cord into a standard AC outlet.:
5. How to read converged lines
6. Test Point Information
23
1
5.0 5.0
Voltage Indicates that the voltage
is not consistent here.
Power on mode
(Unit: Volt)
3
2
1
ABCD
1-B1
1-D3
AREA D3
AREA B1
1-D3
Distinction Area
Line Number
(1 to 3 digits)
Examples:
1. "1-D3" means that line number "1" goes to the line number
"1" of the area "D3".
2. "1-B1" means that line number "1" goes to the line number
"1" of the area "B1".
: Indicates a test point with a jumper wire across a hole in the PCB.
: Used to indicate a test point with a component lead on foil side.
: Used to indicate a test point with no test pin.
: Used to indicate a test point with a test pin.

2-3
Function Schematic Diagram
L5925SCF

2-4 L5925SCL
LED Schematic Diagram

3-1 L5925WI
WIRING DIAGRAM
S-VIDEO IN
SCART JACK (AV1/AV2)
COMPONENT Y-IN COMPONENT Pb-IN COMPONENT Pr-IN
VIDEO -IN3 AUDIO(L) -IN3 AUDIO(R) -IN3 COMPONENT AUDIO(L) -IN COMPONENT AUDIO(R) -IN
CN103B
1 3 2 5 4 7 6 8 9
10 13 12 11 14 15 17 16 19 18 21 20 22 23
VIDEO GND COMPONENT-Pr COMPONENT-Pb GND COMPONENT-Y GND HDMI(R) HDMI(L) HDMI-AUDIO(R) HDMI-AUDIO(L) GND S-VIDEO-C S-VIDEO-Y GND NU NU NU NU NU NICAM-RESET RGB-CONT NU
TU31 TUNER UNIT
AC601
AC CORD
CN104B
CN103A
1 3 2 5 4 7 6 8 9
10 13 12 11 14 15 17 16 19 18 21 20 22 23
LVDS-TX2(-) GND GND LVDS-TX1(+) LVDS-TX1(-) GND GND LVDS-TX0(+) LVDS-TX0(-) GND GND LVDS-TX2(+) GND GND LVDS-CLK(-) LVDS-CLK(+) GND GND LVDS-TX3(-) LVDS-TX3(+) GND NU LCD+5V
25 24 27 26 29 28 30 31
LCD+5V LCD+5V GND NU GND NU CONFIG-2 CONFIG-1
CN400
CN104A
1 3 2 5 4 7 6 8 9
10 13 12 11 14 15 17 16 19 18 21 20 22 23
GND SCL SDA AFT-IN IF-AGC NU NU NU GND RAPID VIDEO-B VIDEO-G VIDEO-R GND RGB-SYNC GND NU VOLUME GND NU AUDIO-MUTE
CN101A
1 3 2 5 4 7 6 8 9
10 13 12 11 14 15 17 16 19 18 21 20 22 23
BACKLIGHT-SW LCD+5V LCD+5V GND GND P-ON+5V GND P-ON+3.3V GND P-ON+1.8V GND BACKLIGHT-ADJ GND NU NU NU NU NU NU NU
CN703
1 3 2 5 4 7 6 8 9
10 12 11GND
GND GND
INV+24V INV+24V INV+24V INV+24V INV+24V INV+24V INV+24V INV+24V
GND
NU NU NU CN102A
1 3 2 5 4 7 6 8 9
10 13 12 11 14 15 17 16 19 18 21 20 22 23
PROTECT-1 PROTECT-2 NU P-ON-H3 P-ON-H2 P-ON-H1 GND NU GND NU GND FBIN GND AL+5V GND GND AL+3.3V(D) AL+3.3V(D) GND AL+1.5V GND AL+3.3V(A) GND
CN101B
1 3 2 5 4 7 6 8 9
10 13 12 11 14 15 17 16 19 18 21 20 22 23
GND
NU NU NU NU NU NU NU NU NU NU
BACKLIGHT-ADJ
BACKLIGHT-SW
LCD+5V LCD+5V
GND GND
P-ON+5V
GND
P-ON+3.3V
GND
P-ON+1.8V
GND
CN102B
1 3 2 5 4 7 6 8 9
10 13 12 11 14 15 17 16 19 18 21 20 22 23
GND
AL+5V
GND GND
AL+3.3V(D) AL+3.3V(D)
GND
AL+1.5V
GND
AL+3.3V(A)
GND
FBIN
PROTECT-1 PROTECT-2
NU
P-ON-H3 P-ON-H2 P-ON-H1
GND
NU
GND
NU
GND
13GND 14GND 15GND 16GND 17GND 18PROTECT-3 19
BACKLIGHT-ADJ
20
BACKLIGHT-SW
23 21 22 19 20 17 18 16 15 14 11 12 13 10
9 7 8 5 6 3 4 2 1
23 21 22 19 20 17 18 16 15 14 11 12 13 10
9 7 8 5 6 3 4 2 1
CN54
2 1
3 4
SP-GND SP-GND
SP(R)
SP(L)
HDMI-IN
HDMI AUDIO(L)-IN HDMI AUDIO(R)-IN
DIGITAL MAIN CBA UNITMAIN CBA
LCD MODULE
CN1000
20 18 19 16 17 14 15 13 12 11
9
10 GND
GND GND INV+24V INV+24V INV+24V INV+24V INV+24V INV+24V INV+24V INV+24V GND
8GND 7GND 6GND 5GND 4GND 3PROTECT-3 2
BACKLIGHT-ADJ
1
BACKLIGHT-SW
INVERTER CBA
LED-4(NU) REMOTE(NU)
CLN53 1
CN53
2
SP(R) SP-GND
CLN52 1
CN52
2
SP(L) SP-GND
SP801 SPEAKER L-CH SP802 SPEAKER R-CH
CN111CN15
1 3 2 5 4
LED-2 LED-1 AL+5V REMOTE GND 10
7 8 3 4
LED CBA
CN16
2 1
3 4
SP-GND SP-GND
SP(R) SP(L)
6GND 6
CN11B CN11A
FUNCTION CBA
1 3 2 5 4
AL+5V KEY-IN1 KEY-IN2 NU NU 1
3 2 5 4

20070510 4-1 L5925PL
Different parts from the original model (LCD-C3206)
Ref. No. Description Part No.
MECHANICAL PARTS
A1 FRONT CABINET L5925FF 1EM021638
A2 BRAND BADGE L5825FF 1EM424293
A3 CONTROL PLATE L5825FF 1EM322505
A4 REAR CABINET L5925FF 1EM021639
A5 DECORATION PLATE L5925FF 1EM121825
A7 FUNCTION KNOB L5825FF 1EM221538
A18 STAND COVER L4301UB 1EM221344A
A24 STAND BASE PLATE L4300UA 1EM121113A
B16 Not Used
B18 CLOTH(10X180XT0.5) L0336JG 0EM408827
B21 WASHER L4300UA 1EM423446
B25 CLOTH(15X300XT1.0) L4430JA 1EM423842
B27 WASHER 10X5XT1.0 L4400UA 1EM423431
B28 Not Used
CLN10 Not Used
CLN11 Not Used
CLN11B WIRE ASSEMBLY WX1L5825-002 WX1L5825-002
CLN15 WIRE ASSEMBLY WX1L5825-003 WX1L5825-003
CLN16 WIRE ASSEMBLY WX1L5825-001 WX1L5825-001
CLN52 WIRE ASSEMBLY 101 WX1L4300-101 WX1L4300-101
CLN53 WIRE ASSEMBLY 101 WX1L4300-101 WX1L4300-101
CLN54B Not Used
CLN703 WIRE ASSEMBLY 104 WX1L4400-104 WX1L4400-104
ELECTRICAL PARTS
MMA CBA 1ESA14778
FUNCTION CBA ----------
CN10 Not Used
CN11 Not Used
CN11B CONNECTOR PRINT OSU S6B-PH-K-
S(LF)(SN)
J3PHC06JG030
LED CBA ----------
C51 ELECTROLYTIC CAP. 47µF/10V M H7 CE1AMASSM470
C52 CHIP CERAMIC CAP. F Z 0.01µF/50V CHD1JZ30F103
C53 CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V CHD1JZ30F104
C54 CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V CHD1JZ30F104
C56 CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V CHD1JZ30F104
C58 Not Used
C59 Not Used
C60 Not Used
C63 Not Used
C64 Not Used
CN15 PH CONNECTOR SIDE 5P S5B-PH-K-
S(LF)(SN)
J3PHC05JG030
CN16 PH CONNECTOR SIDE 4P S4B-PH-K-
S(LF)(SN)
J3PHC04JG030
CN52 PH CONNECTOR SIDE 2P S2B-PH-K-
S(LF)(SN)
J3PHC02JG030
CN53 PH CONNECTOR SIDE 2P S2B-PH-K-
S(LF)(SN)
J3PHC02JG030
CN54B Not Used
D51 LED L-53HT NP4Z000L53HT
D52 LED 333GT/E NPHZ00333GTE
D54 Not Used
D55 Not Used
R51 CHIP RES. 1/10W J 100 ΩRRXAJR5Z0101
R52 CHIP RES. 1/10W J 3.3k ΩRRXAJR5Z0332
R53 Not Used
R56 CARBON RES. 1/4W J 1k ΩRCX4JATZ0102
R57 Not Used
R60 Not Used
R61 CARBON RES. 1/4W J 220 ΩRCX4JATZ0221
R62 CARBON RES. 1/4W J 220 ΩRCX4JATZ0221
R64 Not Used
R65 Not Used
BC51 PCB JUMPER D0.6-P5.0 JW5.0T
BC52 Not Used
RCV51 PHOTO LINK MODULE KSM-712TH2E USESJRSKK044
RCV52 Not Used
Ref. No. Description Part No.
A6!RATING LABEL L5925FF ----------
B40 CAUTION LABEL L5825FF ----------
L5 SCREW P-TIGHT 3X10 BIND HEAD+ GBJP3120
L17 SCREW (M3X7) UD320JA 1FM420394
S1 CARTON L5925FF 1EM322501
S2 STYROFOAM TOP L5925FF 1EM021630
S3 STYROFOAM BOTTOM L5925FF 1EM021631
S5 SERIAL NO. LABEL L5925FF ----------
S7 Not Used
X2-1!OWNERS MANUAL(EN) L5825FF 1EMN22114
X2-2!OWNERS MANUAL(ES) L5825FF 1EMN22115
X2-3!OWNERS MANUAL(FR) L5825FF 1EMN22116
X2-4!OWNERS MANUAL(NL) L5825FF 1EMN22117
X2-5!OWNERS MANUAL(PT) L5825FF 1EMN22118
X2-6!OWNERS MANUAL(DE) L5825FF 1EMN22119
X2-7!Not Used
Ref. No. Description Part No.

LCD-C32B7
L5925FF
2007-06-05