JVC LT-32X676 User manual

SERVICE MANUAL
COPYRIGHT © 2006 Victor Company of Japan, Limited No.YA379
2006/1
LCD FLAT TELEVISION
YA37920061
LT-32X676/T
MAIN DIFFERENCE POINT
BASIC CHASSIS
FL2
The following items for the LT-32X676/T was changed partly from LT-32X575/T.
Therefore, this service manual describes only the items which differ from those of the LT-32X575/T service
manual.
For details other than those described in this manual, please refer to the LT-32X575/T service manual
(No.YA214, 2004/9).
Item LT-32X575/T LT-32X676/T
Cabinet design World Wide New Tooling New Tooling (Asia SX5 Design)
Stand type Oval type Half moon type

1-2 (No.YA379)
DIFFERENCE LIST
USING P.W. BOARD (Page 3-2)
EXPLODED VIEW PARTS LIST
P.W.B ASS'Y Name LT-32X575/T LT-32X676/T DESCRIPTION
ANALOG SIGNAL PWB LCA90350-12C (SFL-1012A) LCA90609-01A (SFL-1015A)
FRONT CONTROL PWB LCA90351-11A (SFL-7011A) LCA90469-05A (SFL-7114A)
FRONT SENSOR PWB LCA90352-11A (SFL-8011A) LCA90470-05A (SFL-8143A)
DIGITAL SIGNAL PWB LCA10428-74A (SFL-0D107A) LCA10428-82A (SFL-0D113A)
Ref. No. Part No. PART NAME DESCRIPTION
101 LC12325-001B JACK COVER (x2)
102 LC32912-001A-A BBE LABEL
103 LC41424-001A-A HDMI WARNING
104 LC41999-002A CAUTION LABEL
105 LC32748-002B-H OPERATION SHEET
106 LC32749-002A-H OPERATION SHEET
107 LC42220-001A-C STAND ASSY Inc.107A/107B
107A T0014-01 STAND COVER
107B T0016-02 CORD COVER
108 QYSPSPD5014MA SCREW M5 x 14mm(x4)
109 QYSPSPD3016ZA SCREW M3 x 16mm(x2)
110 LC12408-005A REAR COVER
111 QYSBSFG4016MA TAP SCREW M4 x 16mm(x7)
112 QYSBSF3010MA TAP SCREW M3 x 10mm(x4)
113 QYSPSPD3008MA SCREW M3 x 8mm
114 QMPR810-170-JC POWER CORD 1.7m BLACK
115 LC21348-001D-HK POWER CORD HOLDER
116 QUQL05-4006AL-E FFC WIRE 40pin 6cm
117 QUQL05-5004AA-E FFC WIRE 50pin 4cm
118 QUQL05-3004AA-E FFC WIRE 30pin 4cm
119 QUQ105-5009AE-E FFC WIRE 50pin 9cm(x2)
120 QUQK12-1906CH-E FFC WIRE 19pin 6cm
121 LC21596-002B-HK TERMINAL BASE
122 QYSBSF3010MA TAP SCREW M3 x 10mm(x6)
123 LC32760-001A-HK SERVICE COVER
124 QYSBSF3010MA TAP SCREW M3 x 10mm
125 LC21597-002C-HK TUNER BASE
126 QYSPSP3008MA SCREW M3 x 8mm
127 QYSPSPD3008MA SCREW M3 x 8mm(x3)
128 LC33126-003A-HK SD CARD BASE
129 LC33196-004B CONTROL ASSY
130 QLD0377-001 LCD PANEL UNIT
131 WJW0021-001A-E DIGITAL(LVDS) CABLE
132 LC12253-001E-H SPEAKER BOX

(No.YA379)1-3
133 LC21340-001C-HK DUCT COVER (x2)
134 LC21339-001B-HK DUCT BASE (x2)
135 LC12321-003D FRONT PANEL ASSY
136 QAS0142-001 SPEAKER SP01/SP02(x2)
137 LC33125-001B-HK LED LENS
201 LCA90349-07B REGULATOR PWB
202 LCA90348-07D POWER PWB
203 LCA10447-51A RECEIVER PWB
204 LCA90353-11A CONNECTOR PWB
205 LCA90609-01A ANALOG SIGNAL PWB
206 LCA10428-82A DIGITAL SIGNAL PWB
207 LCA90469-05A FRONT CONTROL PWB
208 LCA90470-05A FRONT SENSOR PWB
Ref. No. Part No. PART NAME DESCRIPTION

1-4 (No.YA379)
EXPLODED VIEW
INSULATOR
RECEIVER PWB BRACKET
FAN BRACKET
FRONT
206
121
129
207
101 101
111
123
125
119
115
114
119
122
113
111
112
111
111
110
104
111
107A
107B
106
112
111
112
105
111
103
120






205



102

107
108
109
126
128
204
203
116
117
118
202
201
127
124








(No.YA379)1-5
FRONT
BOTTOM FRAME
TOP FRAME
MAIN BASE
135
130
131
136
137
133
134
208
136
132


FRONT

1-6 (No.YA379)
PRINTED WIRING BOARD PARTS LIST
ANALOG SIGNAL P.W. BOARD ASS'Y (Page 3-6)
DIGITAL SIGNAL P.W. BOARD ASS'Y (Page 3-12)
Ref. No.
Part No.
PART NAME DESCRIPTION
LT-32X575/T LT-32X676/T
LCA90350-12C
(SFL-1012A)
LCA90609-01A
(SFL-1015A)
IC6661 TDA8925ST/N1 TDA8928ST/N1 IC
C323 QETM1AM-228 QETN1AM-228Z E CAPACITOR 2200uF 10V M
C820 NCB31AK-474X NCB31AK-474X-U C CAPACITOR 0.47uF 10V K
C6007 QETM1AM-108 QETN1AM-108Z E CAPACITOR 1000uF 10V M
C6664 QETM1HM-226 QETN1HM-226Z E CAPACITOR 22uF 50V M
C6666 QETM1HM-226 QETN1HM-226Z E CAPACITOR 22uF 50V M
C6669 QFV21HJ-224 QFV21HJ-224Z MF CAPACITOR 0.22uF 50V J
C6670 QFVE1HJ-474 QFVF1HJ-474Z MF CAPACITOR 0.47uF 50V J
C6672 QETM1EM-477 QETN1EM-477Z E CAPACITOR 470uF 25V M
C6674 QETM1EM-477 QETN1EM-477Z E CAPACITOR 470uF 25V M
C6678 QFV21HJ-224 QFV21HJ-224Z MF CAPACITOR 0.22uF 50V J
C6679 QFVE1HJ-474 QFVF1HJ-474Z MF CAPACITOR 0.47uF 50V J
C6685 QETM1EM-477 QETN1EM-477Z E CAPACITOR 470uF 25V M
C6687 QETM1EM-477 QETN1EM-477Z E CAPACITOR 470uF 25V M
R6624 QRJ149J-102 QRJ146J-102X UNF C RESISTOR 1kΩ1/4W J
R6666 QRK129J-5R6 QRK126J-5R6X UNF C RESISTOR 5.6Ω1/2W J
R6667 QRK129J-220 QRK126J-220X UNF C RESISTOR 22Ω1/2W J
R6668 QRK129J-5R6 QRK126J-5R6X UNF C RESISTOR 5.6Ω1/2W J
R6669 QRK129J-220 QRK126J-220X UNF C RESISTOR 22Ω1/2W J
K6601 NQR0413-002X NQR0499-002X FERRITE BEADS
K6602 NQR0413-002X NQR0499-002X FERRITE BEADS
K6661 NQR0413-002X NQR0499-002X FERRITE BEADS
K6662 NQR0413-002X NQR0499-002X FERRITE BEADS
K6663 NQR0413-002X NQR0499-002X FERRITE BEADS
K6664 NQR0413-002X NQR0499-002X FERRITE BEADS
X201 CSB503F30 QAX0873-001 C RESONATOR
Ref. No.
Part No.
PART NAME DESCRIPTION
LT-32X575/T LT-32X676/T
LCA10428-74A
(SFL-0D107A)
LCA10428-82A
(SFL-0D113A)
IC4003 AT29LV01-32X585 AT29LV-32X676T IC (SERVICE)
IC4004 AT24C25632X585D ATF25632X676T1 IC (SERVICE)
IC7002 AT24C256-32X585 ATF25632X676T2 IC (SERVICE)
IC7602 AT24C16-32X585 ATF16-32X676T IC (SERVICE)
R7404 --- NRSA63J-0R0X MG RESISTOR 0Ω1/16W J

(No.YA379)1-7
PACKING PARTS LIST (Page 3-19)
SECTION 1
PRECAUTION
Please refer to "LT-32X575/T (No.YA214)" about this section.
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
Please refer to "LT-32X575/T (No.YA214)" about this section.
Ref. No. Part No. PART NAME DESCRIPTION
LT-32X575/T LT-32X676/T
001 LC10006-047A LC10006-062A PACKING CASE
002 LC21688-001A LC22000-001A CUSHION
003 LC11983-001B LC12447-001A CUSHION ASSY 4pcs in 1set
009 LCT1750-001A LCT2047-001A CAUTION SHEET
011 LC21580-003A-0L --- RATING LABEL Not supply

1-8 (No.YA379)
SECTION 3
DISASSEMBLY
3.1 DISASSEMBLY PROCEDURE
3.1.1 REMOVING THE STAND (Fig.1)
(1) Remove the 2 screws [A], then remove the STAND
COVER.
(2) Remove the 4 screws [B], then remove the STAND.
3.1.2 REMOVING THE REAR COVER (Fig.1)
• Remove the STAND.
(1) Remove the JACK COVER (L/R).
(2) Remove the 7 screws [C], the 4 screws [D], and the 1
screw [E].
(3) Remove the REAR COVER.
3.1.3 REMOVING THE REGULATOR PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER.
(1) Remove the 4 screws [F], then remove the FAN
BRACKET.
(2) Remove the 1 screw [G], then remove the POWER CORD
HOLDER.
(3) Remove the POWER CORD from the POWER PWB.
(4) Remove the REGULATOR PWB.
3.1.4 REMOVING THE POWER PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER.
• Remove the FAN BRACKET.
(1) Remove the 5 screw [H], then remove the POWER PWB.
3.1.5 REMOVING THE ANALOG SYGNAL PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER.
• Remove the FAN BRACKET.
(1) Remove the 6 screws [J], then remove the TERMINAL
BASE.
(2) Remove the 5 screws [K], then remove the ANALOG
SIGNAL PWB.
3.1.6 REMOVING THE FRONT CONTROL PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER.
(1) Remove the 3 screws [L], then remove the CONTROL
ASSY with the FRONT CONTROL PWB.
(2) Remove the FRONT CONTROL PWB.
3.1.7 REMOVING THE RECEIVER PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER.
(1) Remove the 3 screws [M] and the 1 screw [N], then
remove the TUNER BASE.
(2) Remove the 4 screws [P], then remove the RECEIVER PWB.
3.1.8 REMOVING THE CONNECTOR PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER.
(1) Remove the 4 screws [R], then remove the RECEIVER
PWB BRACKET.
(2) Remove the 1 screw [S], then remove the CONNECTOR PWB.
3.1.9 REMOVING THE DIGITAL SIGNAL PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER.
• Remove the TUNER BASE.
(1) Remove the 5 screws [T], then remove the DIGITAL
SIGNALPWB.

(No.YA379)1-9
Fig.1
INSULATOR
RECEIVER PWB BRACKET
FAN BRACKET
FRONT
C
D
D
E
D
C
C
C
C
C
C
B
A
N
M
JACK COVER
STAND COVER
STAND
JACK COVER
REAR COVER
REGULATOR PWB
POWER CORD
RECEIVER PWB
POWER CORD HOLDER
DIGITAL SIGNAL PWB
TERMINAL BASE
FRONT CONTROL PWB
CONTROL ASSY
POWER PWB
CONNECTOR PWB
ANALOG SIGNAL PWB
TUNER BASE
F
F
G
H
J
K
K
K
P
L
L
L
S
T
T
T
R

1-10 (No.YA379)
3.1.10 REMOVING THE SPEAKER (Fig.2)
• Remove the STAND.
• Remove the REAR COVER.
(1) Remove the 7 screws [A], then remove the SPEAKER
BOX.
(2) Remove the 4 screws [B], then remove the SPEAKER (L /R).
(3) Remove the 8 screws [C], then remove the DUCT(L/R).
NOTE:
Since the speaker is attached in a certain direction, attach the
speaker in the same correct direction as it has been attached.
3.1.11 REMOVING THE LCD PANEL UNIT (Fig.2)
• Remove the STAND.
• Remove the REAR COVER.
• Remove the FAN BRACKET.
(1) Remove the 4 screws [D], then remove the MAIN BASE.
(2) Remove the 5 screws [E]. then remove the LCD PANEL
UNIT with the TOP FRAME and BOTTOM FRAME.
(3) Remove the 4 screws [F]. then remove the TOP FRAME
and BOTTOM FRAME from the LCD PANEL UNIT.
3.1.12 REMOVING THE FRONT SENSOR PWB (Fig.2)
• Remove the STAND.
• Remove the REAR COVER.
• Remove the FAN BRACKET.
(1) Remove the 2 screws [G], then remove the FRONT LED
PWB.
3.1.13 REMOVING THE LED LENS (Fig.2)
• Remove the STAND.
• Remove the REAR COVER.
• Remove the FAN BRACKET.
(1) Remove the 2 screws [H], then remove the LED LENS.