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SUPPLEMENT
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
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IC101
(TV MICRO CONTROLLER) RCV51
REMOTE
CN11B CN11A SENSOR
CN111 CN15
KEY SWITCH 4 KEY-IN1 4 93 KEY-IN1 RTC-IN 17 8 REMOTE 2
Q462
LED-2 51 DRIVE 3 LED-2 5
LED-1 37 DRIVE 4 LED-1 4
Q463
D51 D52
FUNCTION CBA
POWER POWER
CN104B CN104A
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LED CBA
AUDIO-MUTE 77 1 AUDIO-MUTE 23
VOLUME 1 4 VOLUME 20
14 SCL 10
15 SDA 9
IC103 (MEMORY)
System Control Block Diagram
AUDIO-MUTE
SDA 28 5 SDA VOLUME
SCL 27 6 SCL SCL TO AUDIO
BLOCK DIAGRAM
BUS-OPEN 26 7 WP SDA
1-1
SCL
TO VIDEO SELECTOR
SDA BLOCK DIAGRAM
SDA TO DIGITAL
SCL SIGNAL PROCESS
BLOCK DIAGRAM
BLOCK DIAGRAMS
CN101B CN101A Q507 TO
BACKLIGHT-SW
BACKLIGHT-SW 52 13 BACKLIGHT-SW 11 DRIVE INVERTER
BACKLIGHT-ADJ BLOCK
BACKLIGHT-ADJ 22 12 BACKLIGHT-ADJ 12 DRIVE
DIAGRAM
Q508
X100
10MHz 11 XIN
OSC 13 XOUT
CN102B CN102A
P-ON-H1
P-ON-H1 59 18 P-ON-H1 6
P-ON-H2 TO POWER SUPPLY
P-ON-H2 56 17 P-ON-H2 7
P-ON-H3 BLOCK DIAGRAM
P-ON-H3 57 16 P-ON-H3 8
IC102
AL+5V 5 RESET 4 10 RESET
DIGITAL MAIN CBA UNIT MAIN CBA
L5925BLS
AUDIO SIGNAL
TU31 IC851 IC701 IC801
(TUNER UNIT) (SOUND PROCESSOR) (AUDIO SELECTOR) (AUDIO AMP)
L-CH
SIF 7 2 IF SIGNAL 31 93
R-CH
AUDIO 6 43 PROCESS 30 91 WF10
89
CN54 CN16 CN52
I2C I/F 87 AUDIO SW CLN52 SP801
97 5 AMP 7 4 SP(L) 4 SP(L) 2
85 (L-CH) SPEAKER
99 3 SP(R) 3 SP-GND 1 L-CH
81
13 12 1
79
TO SYSTEM SDA
CONTROL SCL
BLOCK DIAGRAM
44
I2C I/F
45
JK702
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Audio Block Diagram
AUDIO(L)-IN3 CN53
CLN53 SP802
94 SP(R) 2
SPEAKER
92 SP-GND 1 R-CH
AUDIO(R)-IN3 90
88 AUDIO SW
96 2 AMP 12
86 (R-CH)
98
JK704 82
100
(SCART) 80
AUDIO(L)-IN1 6
AUDIO(R)-IN1 2 MUTE VOLUME LED CBA
AUDIO(L)-IN2 27 CONTROL CONTROL
AUDIO(R)-IN2 23
1-2
11 6
JK701
COMPONENT
AUDIO(L)-IN
COMPONENT AUDIO-MUTE TO SYSTEM
AUDIO(R)-IN VOLUME CONTROL
BLOCK DIAGRAM
CN103B CN103A
TO DIGITAL HDMI(L)
21 HDMI(L) 3
SIGNAL PROCESS HDMI(R)
20 HDMI(R) 4 JK704
BLOCK DIAGRAM
23 HDMI-AUDIO(L) 1 (SCART)
22 HDMI-AUDIO(R) 2 3 AUDIO(L)-OUT1
1 AUDIO(R)-OUT1
24 AUDIO(L)-OUT2
JK201
HDMI 22 AUDIO(R)-OUT2
AUDIO(L)-IN
JK202
HDMI
AUDIO(R)-IN
DIGITAL MAIN CBA UNIT MAIN CBA
L5925BLA
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