audiovox-fpe3206dv-servicemanual

1

FPE 3206DV SERVICE MANUAL

CONTENT

PART 1：Brief Introduction Of The FPE 3206DV

◆Specification

◆Schematic Diagram

◆Printed Circuit

PART 2：Exploded view

PART 3：Key Ics And Assemblies

PART 4: Detailed Circuit

◆ Main Board

◆ Remote Board

◆ Module Board

PART 5: Parts List

PART 6: Debug Procedure

2

Part 1 Brief Introduction Of The FPE 3206DV

Specification This product is designed with movable Disc Tray. The Disc Tray can be installed in three different positions. The movable Disc Tray offers you the flexibility to choose which direction to insert your DVD in order to maximize your space. The unit incorporates high-resolution LCD display, DVD player and TV receiver in one system.

Specifications Brand Audiovox FPE3206DV

TV Type LCD(Liquid Crystal Display) Television

Dimension

Depth 280mm

Height 803mm

Width 630mm

Weight About 25 Kg

General

Exterior Color Black

Screen Size 31.5 in.

Video Input Two Y/Pb/Pr(component),Two Composite,One VGA,One S-Video jcaks,

Audio input Five L/R audio input jacks(the S-Video L/R audio input is shared whit AV2)

Video solution 480i, 480p,720p,1080i

Video Output One Composite

Output Video system NTSC

Audio signal-to noise rate ≥85 dB

Audio distortion + noise ≤-70dB (1KHz)

Dynamic range ≥80Db (1KHz)

Channel separation ≥70Db (1KHz)

Analog audio out Out Level: 2V±0.2 1.0 , Load: 10kΩ

Audio Out Digital audio out: Out Level: 0.5VP-P, Load: 75Ω

Video Out Out level: 1VP-P+0.2 load:75Ω

Unbalanced negative

Power Supply AC 100-240V 50/60 Hz

Power Consummation ＜230W

3

Schematic Diagram

4

Printed Circuit

Main board 2713C(TOP layer view)

Power Supply

Zoran ZR39660BGCG

(Main Chip)

Video input ports

Two FSAV330 Switch One FSAV331 Switch

Y/Pb/Pr RGB,CVBS Y/C

Tuner

CVBS

OREN CAS-220/CS

ATSC DigitSignal

MST9883 B-C(ADC)

Audio Input ports

Two CD4052 Switch

SIF

AP62060

(SRS)

TDA8932T (AMP)

LVDS

Y/Pb/Pr RGB,CVBS Y/C

32M Flash Rom

256DDRRAM*2

5

Main Board 2713C （Bottom Layer view）

7

Keystoke board top view 2628C

Keystoke board bottom view 2628C

Remote board top view 2635C

Remote board bottom view 2635C

Module board top view 2798C

Module board bottom view 2798C

8

Part 2 Exploded view

Exploded view

9

Part 3 Key ICs And Assemblies

On Module Board On Main Board

Serial No

Position Type Serial No

Position Type

1 U2 CD4052 15 U18 U26 LM1117 16 U19,U20 CD4052

On Main Board 17 U21 FSAV331MTC

1 U1 ZR39660 18 U22 NJW1109 2 U2 S29GL032M10TAIR30 19 U23 L7809 3 U3,U32 74LVC125 20 U24,U25 RCLAMP0514M

5 U6 uPC3221 OR

uPC3217GV-E1 21

U11 U27,U28 FSAV330

6 U7 Cascade-220 22 U29 NJM4558 7 U8,U9 UPA672T 23 U30 FMS6408 8 U10 CM2006 24 U31 FM6413

9 U12 24LC02B 25 U36,U41 FAN5236MTC

10 U13 ATMEGA8L 26 U37,U38,U39,U40,U42,

U43,U44,U45 FDS6612

11 U14 CS43445 27 U50 IRF7314 12 U15,U46,U47 L78L05 13 U16 BA7654F 14 U17 MST9883

ICS ON MAIN BOARD

74LVC125A

10

CAS-220/CS

11

CM2006

12

BA7657

13

L78L05

14

BA7654F

MST9883

FEATURES OVERVIEW Triple ADC with 12 - 140 MHz Sampling Rate

Integrated line locked PLL generates pixel clock

from HSYNC

Integrated 5-bit pixel clock phase adjustment for

precise sample timing control

Integrated clamp with timing generator

Integrated Brightness & Contrast controls

Integrated precision voltage reference

Compatible with VGA through SXGA RGB graphics

signals, and component TV, DTV and HDTV

Pin Compatible with AD9883A

Serial port programming interface

Mid-Scale Clamping

Fully Sync Processing

4:2:2 and 4:4:4 Output Format Mode

Internal pattern generator*

Sawtooth vertical deflection signals for VSYNC

input*

BT656 output format mode*

Black and mid-level precision clamp and

calibration*

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DESCRIPTION Most flat-panel monitors and projectors require a digital graphics input in order to accurately scale and

display

graphics. The huge installed base of computers with analog video graphics interfaces necessitates the use

of a

graphics digitizer to re-digitize the analog RGB signal before further processing.

The MST9883B-2 is a fully integrated analog interface for digitizing high-resolution RGB graphics

signals from

PC’s and workstations. With a sampling rate capability of up to 140 MHz, it can accurately support display

resolutions up to 1280x1024 (SXGA) at 75 Hz. The clamped input circuits provide sufficient bandwidth to

accurately digitize each pixel.

The MST9883B-2 provides a high performance highly integrated solution to support the digitization

process,

including the ADC’s, a voltage reference, a PLL to generate the pixel sampling clock from HSYNC, clamping

circuits, and programmable offset and gain circuits to provide brightness and contrast controls.

When the COAST signal is asserted, the PLL will maintain its output frequency when HSYNC pulses are

absent,

such as during the VSYNC period in some systems.

A 32-step programmable phase adjustment control (0-360 deg) is provided for the pixel sampling

clock to

adjust for the difference between the HSYNC edge and RGB pixel edge timing.

The MST9883B-2 can send output data through one 24-bit port at the pixel clock rate.

The MST9883B-2 has internal programmable pattern generator for testing.

The MST9883B-2 can accept either standard TTL, CMOS levels or sawtooth vertical deflection signals

for

VSYNC input.

16

CD4052

17

NJW1109

18

LM1117

FSAV330

19

NJM4558

20

FMS6408

21

IRF7314

S29GL032

22

TDA 8932

23

FAN5236

24

24LC02B

FSAV331

25

AIC1084

26

UPA672T

UPC3217GV

27

ZR39660BGCG

29

DTT7611(Tuner)

DTT 761x is a 3 in 1 NTSC Front-end module included Tuner, NTSC IF de-modulator & ATSC IF output for external on board VSB/QAM de-modulation, the front-end designed equipped with DC-DC up converter for tuning voltage to ease application (especially multimedia application) & multi function AGC switches to optimum strong signal reception performance.

a) Tuner section:

-It is the real 3-band frequency synthesized tuner, using latest MOPLL tuner IC included bus control wideband AGC function & symmetrical IF output

- One IF output to external for digital application / reception & another output for internal analog

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base band de-modulation, the base band output: video, sound IF & audio out.

b) IF section:

-It is an alignment free IF concept, it employs a quasi-split sound concept and all switching control

via I²C bus except TOP and video level adjustment with preset.

c) FM radio Function:

- DTT 7612 version build in FM radio function that provide the mono audio base band output at tuner pin 9, the selective 10.7MHz sound IF out is equipped at pin 11 for stereo application

Pin

Symbol

Description

1 N.C --

2 AGC-int -- (AGC input for tuner factory process only)

3 +5V Supply for tuner

4 AS Tuner address select

5 SDA I²C bus data for tuner + IF

6 SCL I²C bus clock for tuner + IF

7 IF out Digital IF output @ 75 ohms

8 +5V Supply for IF

9 AF out NTSC Audio out & FM radio mono out

10 Video out Video output 1.0Vp-p @ 75 ohms load

11 FM-IF FM 10.7MHz IF out

12 SIF / AS Sound IF - 4.5 MHz / IF address select

31

ATMEGA8L

IRF7314

32

FDS6612

RCLAMP0514M

33

L7809

34

FM6413

CM2006

35

CS4345

36

Part 4 Detailed Circuit MAIN BOARD POWER PATR REMOTE BOARD MODULE BOARD

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Part 5 Part list of FPE3206DV part number

Part name Name description Qty LOCA.NO.

1 01.00.SJ.LTD63201.E017 plastic LTD63201- middle frame 1 LTD63201ZPTG-RE01

2 01.00.SJ.LTD63201.E018 plastic LTD63201- front frame 1 LTD63201ZPTG-RE02

3 01.00.SJ.LTD63201.E019 plastic LTD63201- back frame 1 LTD63201ZPTG-RE03

4 01.00.SJ.LTD63201.E001 plastic LTD63201- keypad bracket 1 LTD63201ZPTG-RE04

5 01.00.SJ.LTD63201.E002 plastic LTD63201- functional keypad 1 LTD63201ZPTG-RE05

6 01.00.SJ.LTD63201.E020 plastic LTD63201- TV back cover 1 LTD63201ZPTG-RE06

7 01.00.SJ.LTD63201.E021 plastic LTD63201- DVD back cover 1 LTD63201ZPTG-RE07

8 01.00.SJ.LTD63201.E003 plastic LTD63201- pedestal 1 LTD63201ZPTG-RE08

9 01.00.SJ.LTD63201.E004 plastic LTD63201- pedestal back cover 1 LTD63201ZPTG-RE09

10 01.00.SJ.LTD63201.E005 plastic LTD63201- pedestal back cover

board 1 LTD63201ZPTG-RE10

11 01.00.SJ.LTD63201.E006 plastic LTD63201- DVD jack fixing board 1 LTD63201ZPTG-RE11

12 01.00.SJ.LTD63201.E007 plastic LTD63201- DVD socket cover 1 LTD63201ZPTG-RE12

13 01.00.SJ.LTD63201.E010 plastic LTD63201- DVD front cover 1 LTD63201ZPTG-RE13

14 01.00.SJ.LTD63201.E011 plastic LTD63201- remote window 1 LTD63201ZPTG-RE14

15 01.00.SJ.LTD63201.E012 plastic LTD63201- transparency LED 1 LTD63201ZPTG-RE15

16 01.00.SJ.LTD63201.E013 plastic LTD63201- string clip 1 LTD63201ZPTG-RE16

17 01.00.SJ.LTD63201.E023 plastic LTD63201- right back

cover(without DVD) 1 LTD63201ZPTG-RE19

18 01.00.WJ.TJ.E644 Metals LTD63201- LCD shield-cover 1 LTD63201PT-01

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19 01.00.WJ.TJ.E606 Metals LTD63201- pedestal bracket 1 LTD63201PT-02

20 01.00.WJ.TJ.E645 Metals LTD63201- bracket link board 1 LTD63201PT-03

21 01.00.WJ.TJ.E608 Metals LTD63201- main board

shield-cover 1 LTD63201PT-05

22 01.00.WJ.TJ.E611 Metals LTD63201- jack fixing board 1 LTD63201PT-08

23 01.00.WJ.TJ.E646 Metals LTD63201- ledge fixing

board(Left) 1 LTD63201PT-09

24 01.00.WJ.TJ.E647 Metals LTD63201- ledge sixing board

(Right) 1 LTD63201PT-09

26 01.13.L.H.E002 magnetism ring

22*14*6.5 2 tuner commutator

27 01.00.WJ.TJ.E268 radiator 28*28*10mm 1 main board2713C for

main chip

28 01.00.WJ.JG.E386 screw 4*7PMNI 10 fasten panel and panel

shield-cover

29 01.00.WJ.JG.E321 screw 3*8PAHO 38

fasten front cover and

middle cover(28) fasten

jack link board and

output port(8)fasten

back cover and keypad

bracket(1)fasten DVD

jack link board and

back cover(1)

39

30 01.00.WJ.JG.E400 screw 4*10PAHO 28

fasten middle cover and

LCD shield-cover（20）

fasten middle cover and

LCD

shield-cover ,bracket

link board（6）fasten

front frame and keypad

bracket（2）

31 01.00.WJ.JG.E595 screw 4*14 PAHO 18 fasten middle cover and back cover

32 01.00.WJ.JG.E389 screw 3*6PWMO 33

fasten back cover and

LCD

shield-cover(4)fasten

DVD jack fixing and

LCD shield-cover(2)、

fasten jack link board

and LCD

shield-over(3)、main

boardfasten main

board(6) fasten power

board (4)main

boardfasten main board

shield-cover（4）

fastenbracket link board

40

and LCD shield-cover

（9）fasten jack link

board and ouput

ports(1)

33 01.00.WJ.JG.E445 screw 3*6PBTTO 8

fasten pedestal back cover and pedestal

bracket(4)fasten back

cover and jack link

board(4)

34 01.00.WJ.JG.E100 screw 3*8PAHNI 4 fasten althorn and middle cover

35 01.00.WJ.JG.E172 screw 4*8PAHNI 8 fasten sackbut and middle cover

36 01.00.WJ.JG.E394 screw 3*10PWMO 2 fasten jack link board and power socket

37 01.00.WJ.JG.E175 screw 3*6PAHNI 11

fasten keypad board

and keypad

bracket(5)fasten

remote receive

boardand middle

cover(2) back cover

and DVD jack cover(4)

38 01.00.WJ.JG.E048 screw 2.5*6PAHNI 6

jack link board and

DVD socket fixing

board

39 01.00.WJ.JG.E659 screw 3*6PMO (no-lead) 5 fasten modules(1)main

board fasten main

41

board shield-cover(4)

40 01.00.WJ.JG.E660 screw 6*12PMO (no-lead) 6 fasten pedestal bracket and bracket link board

41 01.00.WJ.JG.E399 screw 4*10KAHO 14

fasten pedestal back

cover board and string

clip(2)

42 01.00.WJ.JG.E661 screw 6*8PMO (no-lead) 8

43 01.00.WJ.JG.E596 screw 6*10 PMO 4

44 01.00.WJ.JG.E119 general nut M3 2 fasten jack link board and power socket

45 01.47.CNT.LJX.7.E338 connect

bus 2.0-11Y-11Y-680mm 1

main

boardJ15-----keypad

boardJ1


bus 2.54-3Y-3Y-100mm 1

main

boardJ56-----power

boardCN4


bus 2.0-6Y-6Y-450mm) 1

main boardJ32-----LCD

panel(the four in the

middle not used)


bus 2.54-4Y-4Y-260mm 1

main

boardCON4-----power

boardCN3


bus 2.0-5Y-5Y-770mm 1

main

boardJ57-----remote

receive boardJ1

42


bus 2.54-8Y-8Y-250mm 1

main

boardJ55-----power

boardCN1


bus 2.54-2.0-10Y-350mm) 1

power

boardCN5-----power

socket of LCD panel


bus

2Y-600mmlong sound box connect

string(red-black) 1

main

boardCON9-----left

speaker


bus

2Y-700mmlong sound box connect

string(red-black 1

main

boardCON10-----right

speaker


bus

1Y-100mmlong sound box

string(red) 2 sackbut-----althorn

55 01.47.CNT.LJX.5.E106 Tuner commutator cable

665-NC190-00(190mm)(forbidden) 1 commutator-----tuner in

main boardCON1

56 01.47.CNT.LJX.5.E113

LVDS

shield

cable

665-D0002-W8(300mm) 1 main boardJ12-----LCD

panel

57 01.47.CNT.ACX.E080 power cable 1015-060613-756(900mm) 1

220V extern power-----

power board L-brown

N-blue

58 01.47.CNT.ACX.E081 power cable 1015-060313-757 (900mm) 1 220V extern

43

power-----power board

grounding string

59 01.47.CNT.LJX.5.E114 row cable MFC-40P(N2)/2H L=220mm） 1

main

boardJ16-----module

boardJ3

60 01.17.LCD.E320C 32＂LCD

screen 32＂CHEIMEI V320B1-L01(16:9) 1

61 01.14.DX.B.E0007 alkalescence battery

7# 1

62 01.00.RC.EUEI remote controller

UEI 66700BA0-012 1

63 01.00.SP.E090 speaker ST613-05 (4Ω 12W)sackbut 2

64 01.00.SP.E091 speaker ST13-Q09 (4Ω 10W)althorn 2

65 01.47.CNT.CTX.E114 AV signal

cable RCA(yellow-white-red)3M 1

66 01.47.CNT.CTX.E115 AV signal

cable (D84red-white)3M 1

67 01.47.CNT.CTX.E116 AV signal cable

red-green-blue)3M 1

68 01.47.CNT.ACX.E000 power string customer choose 1

69 01.34.CL.D.E2U250VW electrolytic capacitance

2.2UF/50V 2

70 01.40.CON.DCZ.E023 power socket

SA-4S-008 1

71 01.40.CON.DDZ.E001 775-41207-00 1

72 01.00.YS.SM1.E000 User’s

manual customer choose 1

73 01.00.YS.FY3.E049 Certificate 1

44

74 01.00.YS.SC.E002 Warranty card

Warranty card 1

75 01.00.YS.ZX2.E000 Packing list customer choose 1

76 01.00.BZ.X.W.E000 carton customer choose 1

77 01.00.DP.QT.E004 EPE LTD-63201 1 customer choose

86 01.00.FZ.QT.192 outside box fastener

LTD-2600 2

87 01.00.DP.JY.E157 Insulating mat

200*135*0.5MM 1 power board insulated

88 01.00.DP.JY.E103 Insulating mat

165*30*0.35mm 1 keypad insulated

89 01.00.FZ.QT.E122 binding buckle

12CM 4 connect busclear up

string

90 01.00.DP.XJ.E172 Silica gel mat

LTD-2030（10*15*7.8MM） 6

91 01.00.DP.XJ.E320

Silica gel

mat(U

type)

79.8*36.8*4.4MM 1

92 01.00.DP.XJ.E321

Silica gel

mat(U

type)

79.8*36.8*5.2MM 1


87*5.6*4.2MM 1


40*5.6*4.2MM 2

95 02.11.LTD06M2713C01 main board LTD06M-2713C01 1

96 02.14.LTD06I2798C01 module

board LTD06I-2798C01 1

97 02.22.LTD06T2635C01 remote receive board

LTD06T-2635C01 1

45

98 02.15.LTD06K2628C01 key pad board

LTD06K-2628C01 1

99 01.37.PCB.0.E005 power board MLT-286A 1

46

Part 6 Debugging Procedures Debug Strategy

Debug start

Power on

Power on Backlight

N

Y

Remoto work natural

N 1.check ATMAGE8 pin 23 2.check connect between remote board and main board 3 check the remote receiver and transfer circuit

Y

1.check Main board J32 backlight ctrl 2.check connect between Power Board and LCD Module

Display OSD

Y

N 1.check LVDS connector

Signal display natural

N

Y

1.if Tuner source,check the Tuner 2.other source,check the jack 3.check switch chip FSAV330,FSAV331 relevant circuit 4.for Y/Pb/Pr ,RGB,Y/C check MST9883 signal output and input circuit

Audio natural

N 1.check jack connect or Tuner pin 2.chenck AMP TDA8932 circuit 3.check switch chip CD4052 relevant circuit 4.check AP8206 relevant circuit 5.check mute ctrl between ATMAGE8 and AMP

Led color changed

Y

N 1.check Power board output voltage 2.check connect between Power Board and main board

A

Auto channel

search

Y

47

v

A

Channel save correctly

Y

N1.check CAS-220 2.check connect circuit between tuner and CAS-220 3.chenck ctrl circurt between main chip(ZR39660) and CAS-220

Change SRS mode

Y

N

1.check AP8206AA chip 2.check ctrl circuit between main chip and AP8206 3.there are some input don’t support the mode change

Change source correctly

1.check video and audio switch chip(FASV330/331,CD4052) and relevant circuit 2.check ctrl circurt between main chip switch chip

N

Y

Display correctly

Y

N

1check filter circuit after input jacks or tuner 2.for Y/C,RGB,Y/Pb/Pr input,check the circuit between MST9883 and switch chip(FSAV330/331) 3.for Y/C,RGB,Y/Pb/Pr input,check the circuit between MST9883 and main chip(FSAV330/331) 4.for tuner and CVBS input,check the circuit between switch chip and main chip,check chip FM6408 function works correctly

Sound correctly

All source checked

Y

Y

1check filter circuit after input jacks or tuner 2.check the circuit between the switch chip(CD4052) and SRS chip 3.check the AMP function,make sure it works correctly

N

N

AV output Works natural

1.check FM6413 and relevant circuit 2.check the jack of CVBS output

Y

N

Debug finish

48

Video Signal process diagram

Power on

Currently input signal is tuner or

Composite

N

Y

Currently input signal is

HDMI

N Currently input signal is

Process

circuit

Y Y

Process

circuit Process

circuit

MST9883

ADC

ATSC digital

Y

Oren CAS-22

N

FMS6408

ZR39660

(Main Chip)

DDR333 RAM 512M

(256M*2)

SDRAM 32M

LVDS

Switch Chip

FSAV330/331

Switch Chip

FSAV330/331

X6941

IF Filter

49

Audio Signal Process Diagram

Power On

Switch Chip CD4052

SRS Chip AP8206

APM TDA 8932

Speaker

50

4. Tips Of Some Typical Troubleshooting

Failure start The trouble mostly occurred in the DDR and the SDRAM circuit , and check the 12v input works naturally.

No video This problem often arise from the connection ports ,the switch chips(as FSAV330/331,CD4052), and for the Tuner input ,it’s relate with the pin of the tuner or the coaxial-cable. For Y/C and RGB input ,check the MST9883.

Abnormal picture Check if the LVDS connector works normally.

Pictures with no sound The trouble mostly occurred in APM or the connection of speakers

Sounds with no picture Check switch chips firstly , check the LVDS connector.

audiovox-fpe3206dv-servicemanual

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