Funai PLF-76-TD Service manual

TFT PORTABLE DVB-T/DVD PLAYER

FUNAI PLF-76TD

SERVICE MANUAL

CAUTION: Before servicing the chassis, read the “IMPORTANT SERVICE SAFETY INFORMATION” section on

M595MB

page 2 of this manual.

SPECIFICATIONS

z GENERAL SPECIFICATION

z 7” ACTIVE-MATRIX TFT TYPE. z DVD, VCD, CD, CD-R, CD-RW, MP3, DIVX, HDCD

SUPPORTS.

z USB FUNCTION z 16:9 / 4:3 PICTURE SELECT. z HIGH BRIGHTENNESS. z HIGH CONTRAST. z WITH LOGO OPENING SCREEN. z SLOW MOTION ½, 1/4, 1/8, 1/16 z F.B / F.F x2, x4, x8, x16 SPEED. z ANGLE MENU. z 20 TRACK PROGRAM FOR CD PLAYING. z ZOOM x 2, 3, 4. z REMOTE CONTROL. z S. VIDEO OUTPUT (for Ext. TV Monitor) z HEADPHONE OUT x 1. z AUDIO OUTPUT 0.5W x 2/8 ohm. z LONG BATTERY TIME OF OVER 2 HRS. z DIMENSION :

212(L) x 170(W) x 430(H) mm(excluding battery)

z AC POWER SOURCE:

ADAPTER: 230V

z DC POWER SOURCE: BATTERY PACK: 7.2V z FEATURES FOR DVB-T TUNER (FREE ON AIR) z FREQUENCY RANGE :

VHF CH5 – CH12 (174MHZ – 230MHZ) UHF CH21 - CH69 (470MHZ – 862MHZ)

z 1,000 PROGRAMMABLE FAVORITE CH ANNELS z 9 PICTURES FOR PROGRAM AUTO-SCAN z EPG FUNCTION SUPPORT (TELE-TEXT OPTION) z PROGRAM LIST WITH PROGRAM PREVIEW AFTER

TUNER POWER ON

z OSD TRANSPARENT ADJUSTMENT. z FULL FUNCTION REMOTE CONTROL

CONTENTS

IMPORTANT SERVICE SAFETY INFORMATION................2

DISASSEMBLY FOR REPAIR .................................................3

WIRING DIAGRAM……………………………………....……4

BLOCK DIAGRAM....................................................................5

CIRCUIT DESCRIPTION .............................……………...6~16

PARTS LIST ..........................................…………............ 17~29

EXPLODED VIEW (CABINET)............................................. 30

EXPLODED VIEW (DVB-T).................................................. 30

SCHEMATIC DIAGRAMS.................................................32~40

PRINTED CIRCUIT BOARDS.......................................... 41~54

Note: Follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.

1. SAFETY PRECAUTIONS

Before returning a unit to the customer, always make a safety check of the entire unit, including, but not limited to the following items: a. Be sure that no built-in protective devices are defective and/or have been defeated during servicing. (1) Protective shields are provided to protect 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 assemblies 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 unit of permit it to be operated without all protective devices correctly installed and functioning. 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, excessively wide cabinet ventilation slots, and an improperly fitted and/or incorrectly secured cabinet back cover. c. Leakage Current Hot Check - With the unit completely reassembled, plug the AC line cord directly into a 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 unit 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 unit (antennas, handle bracket, metal cabinet, screwheads, metallic overlays, control shaft, ect.), especially any exposed metal parts that offer an electrical return path to the chassis. Any current measured must not exceed 0.5 milliamp. Reverse the unit power cord plug in the outlet and repeat test. ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE UNIT TO THE CUSTOMER.

AC LEAKAGE TEST

d. Insulation Resistance Test Cold Check (1) Unplug the power supply cord and connect a jumper wire between the two prongs of the plug. (2) Turn on the power switch of the unit. (3) Measure the resistance with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on the unit, such as screwheads, antenna, control shaft, handle brackets, etc. When the exposed metallic part has a return path to the chassis, the reading

ANTENNA TERMINAL

EXPOSED

IMPORTANT SERVICE SAFETY INFORMATION

(READING SHOULD NOT BE ABOVE

0.5mA)

EARTH GROUND

METAL

PART

TEST ALL EXPOSED

DEVICE

UNDER

TEST

METAL SURFACES

2-WIRE CORD ALSO TEST WITH PLUG REVERSED (USING AC ADAPTER PLUG A REQUIRED)

OHMMETER

LEAKAGE CURRENT TESTER

should be between 1 and 5.2 Megohm. When there is no return path to the chassis, the reading must be “infinite”. If it is not within the limits specified, there is the possibility of a shock hazard, and the unit must be repaired and rechecked before it is returned to the customer.

2. PRODUCT SAFETY NOTICE

Some electrical and mechanical parts have special safety related characteristics which are often not evident from visual inspection, nor can be 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

¡I

on schematic and parts list. 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. Product Safety is under review continuously and new instructions are issued whenever appropriate.

3. SERVICING PRECAUTIONS CAUTION: Before servicing the unit covered by this service manual and its supplements, read and follow the SAFETY PRECAUTIONS on this page. NOTE: If unforeseen circumstances create a conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions. Remember: Safety First. General Servicing Precautions. a. Always unplug the unit’s AC power cord from the AC power source before: (1) removing or reinstalling any component, circuit board, module, or any other unit assembly. (2) disconnecting or reconnecting any unit electrical plug or other electrical connection. (3) connecting a test substitute in parallel whit an electrolytic capacitor in the unit. Caution: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard. b. Do not defeat any plug/socket B+ voltage interlocks with which the unit covered by this service manual might be equipped. c. Do not apply AC power to this unit and/or any of its electrical assemblies unless all solid-state device heat sinks are correctly installed. d. Always connect a test unit ground lead to the unit chassis ground before connecting the test unit positive lead. Always remove the test instrument’s ground lead last.

4. LASER PRECAUTIONS WARNING!

1. When servicing (in case it is necessary to confirm Laser Beam Emission), be sure not to place your eyes any closer than 1 ft or 30cm from the surface of the Object Lens on the Optical Pickup Block. HANDLING THE LASER PICKUP

2. Laser diodes are extremely susceptible to damage from static electricity. Even if a static discharge does not ruin the diode, it can shorten its life or cause it to work improperly. When replacing the pickup, use a conductive mat on the floor and desk and wear a wrist band connected to ground through a 1M ohm resistor to protect the laser diode from static damage. If the lens should get dusty, blow off the dust carefully from the object.

3. There are no adjustable parts in the pickup assembly. If it is defective, replace the whole pickup assembly. CAUTION: USE OF CONTROLS, ADJUSTMENTS OR PERFORMANCE OF PROCEDURES HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. DANGER: IF INTERLOCK FAILS OR IS DEFEATED, THE LASER LIGHT IS ABLE TO FUNCTION. THE LASER IS INVISIBLE, AVOID DIRECT EXPOSURE TO BEAM.

DISASSEMBLY FOR REPAIR

TO DISASSEMBLY THE BOTTOM METAL CABINET

1. Remove the 14 screws (A) from bottom metal cabinet.

TO REMOVE THE INNER PANEL

2. Remove the 6 screws (B) from the inner panel and out panel.

WIRING DIAGRAM

BLOCK DIAGRAM

CIRCUIT DESCRIPTION

100mΩ Power Distribution Switches: RT9701CB (U7)

NiMH BATTERY CHARGER CONTROLLER: LS2964S (U6)

Timer LED OSC

1 2 3

8 7 6

VDD PWM Vdet

GND

Idet

DUAL OPERATIONAL AMPLIFIER: RC4558D (U7,16)

A OUTPUT

V +

A -INPUT

A +INPUT

V -

B OUTPUT

B -INPUT

B +INPUT

CIRCUIT DESCRIPTION

PROGRESSIVE SCAN DVD PLAYER COMBO CHIP: MT1389DE/B (U5)

SWITCHING REGULATOR CONTROLLER FOR LCD BIAS: AT1380HP(U2,13,14)

CIRCUIT DESCRIPTION

2-WIRE SERIAL EEPROM: AT24C02A-10SC-207 (U6,U12)

DUAL LOW-VOLTAGE POWER AMPLIFIER: NJM2073M (U3)

CIRCUIT DESCRIPTION

24-BIT, 96 KHZ STEREO D/A CONVERTER FOR AUDIO: CS4340 (U15)

DUAL COMPARATORS: LM393DR (U10)

VOLTAGE REGULATOR: 78 L 08 (Q1)

GND

OUT IN

CIRCUIT DESCRIPTION

4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM: AT5654H (U4)

300/500MA LOW DROPOUT LINEAR VOLTAGE REGULATOR: RP1101-19CXL, RP1102-

33CGL (U1,Q2)

CIRCUIT DESCRIPTION

8M/16M-BIT CMOS SINGLE VOLTAGE 3V ONLY HIGH SPEED FLASH: AT49BV163A-70TU,

S29AL008D70TFI020 (U11,U4)

DIGITAL TV STB BACKEND PROCESSOR: CT212T (U3)

CIRCUIT DESCRIPTION

2 BANKS X 512K X 16 BIT SYNCHRONOUS DRAM : K4S641632H-UC75 TSOP-54 (U1,U9)

INFRARED REMOTE CONTROL TRANSMITTER : SC6122-001 (IC1)

2 3

4 5 6

1 2 3 4 5 6KI 7 8 9 10

12 13

KI KI KI KI KI

REM

SEL

OSCO

OSCI

22 21 20

18 17 16 15

1411

KI KI CCS KI/O KI/O KI/O19 KI/O KI/O KI/O KI/O

KI/O LMP

1 0

2 3 4 5 6 7

CIRCUIT DESCRIPTION

TV/VIDEO SINGNAL PROCESSOR WITH BUILT-IN TFT-LCD CONTROLLER: VS507 (U3)

8-BIT COMPATIBLE SHIFT/STORE REGISTER: HEF4094BT (U4)

CIRCUIT DESCRIPTION

HIGH FREQUENCY PWM STEP-UP REGULATOR: EL5220CY (U1A)

TRIPLE 2-CHANNEL ANALOG MULTIPLEXER /DEMULTIPLEXER: 74HC4053 (U2)

CIRCUIT DESCRIPTION

2A STEP DOWN DC TO DC CONVERTER: MP1410ES (U8, 9)

10-pin, 24-Bit, 192 kHz Stereo D/A Converter: CS4345 (U5)

DIGITAL TV STB BACKEND PROCESSOR: B1117N-ADJ (U10)

Ref. No Parts No. Description QTY

185-04620-001 M462 INVERTER CHASSIS

IV1070LG-2(SHANGHAI TECHGOOD) (FOR LG 7" TFT DIS.)

HS-M595MB-

GY-507

001-04050-710 N405M REMOTE CONTROL

IC 1 002-06322-990 IC AP6322-0002-S (ASP) SMT 1 Q1 003-24081-140 CHIP TRANSISTOR

004-01122-600 INFRARED EMITTING DIODES

R1 005-52109-301 CHIP RESISTOR 1 OHM +-5%

C2,3 006-72181-250 CERAMIC CHIP CAP 180 PF +-

C1 009-10476C510 ELECT CAP 47 UF +80%-20%

X1 028-00455-011 CERAMIC FILTER ZTB455E

041-04051-002 N405 HANDSET BATTERY

041-04052-002 N405 HANDSET BATTERY

104-04050-0956 N405M H/S BOTTOM CAB.

111-04050-0956 N405M H/S BATTERY DOOR

124-05261-0499 M526MB H/S BACK

125-04050-001 T405M H/S MEMBRANE

FOR HENDSET 144-11405-402 SCREW 1.4 X 5 KB (D=2.5MM) 7 M515MB-SIL-

KNOB

M595MB H/S CHASSIS W/COSMETIC ASSY "FUNAI PLF-76TD" (L.GY.MNC7-0) (48 KEY)

P.C.B. (48 KEY)

2SC4081(RS)-TLB (ROHM)

EL-1L2

(1608) (MCH03EZHJ109)

5% 50V (1608) (MCH185A181JK)

10V (PIN LENGTH 9MM)

(MEC) (2 PINS)

PLATE (+)

SPRING (-)

(L.GREY MN7-0)

PLATE"ENZER E5698P7"

SW.PLATE W/RED 032C SIL.8001C/GN.375C 2X/SIL.GY 8403C/WH.SK.

M515MB SP.SIL.SS9-1 KNOB VERSION ASSY

Ref. No Parts No. Description QTY

127-04625-0974 M515 POWER KNOB (INJ.GY

17 127-04627-0974 M515 PANEL OPEN KNOB

128-05152-0974 M515 DISC OPEN BUTTON

128-05152-1974 M515 BUTTON SET

M462-CAR-

ADAPTOR-02

001-35000-400 3500MC CAR BAT SUPPLY

D1-4 004-05401-300 RECTIFIER IN-5401 4 R1 005-10152-314 RESISTOR 1.5 K +-5% 1/4W 1 C1 006-10203-550 CERAMIC CAP 0.02 UF +80%-

C2 009-10107-525 ELECT CAP 100 UF +80%-20%

D10 019-12000-110 L.E.D. DIAMETER 3MM(RED)

031-02600-040 JUMPER WIRE AWG22UL

031-10500-100 JUMPER WIRE AWG22UL

043-20192-300 T409 DC CORD 75"#20 WH/BLK

050-05020-250 2.5A/250V GLASS FUSE

101-97030-010 9703 CAR ADAPTOR FRONT

102-97030-010 9703 CAR ADAPTOR REAR

105-97030-010 9703 CAR ADAPTOR CAP 1

MN7-0/ABS) (SP.SIL.SS9-1)

(INJ.GY MN7-0/ABS) (SP.SIL.SS9-1)

(INJ.GY.MN7-0/ABS) (SP.SIL.SS9-1) M518MB CAR ADAPTOR ASSY (OUTPUT DC 9V,1.2A)

P.C.B.

20% 50V

25V

SEL-2110R

60MM RED

50MM BLACK(ONE SIDE 4MM,ONE SIDE 10MM)

(2P)W/BUSHING &DC PLUG (Y001-D19102C458505Q)(Y.C.)

5X20MM FAST ACTING BUSSMANN/VDE/SEMKO/BSI/I MQ/UR

CABINET (BLACK)

PARTS LIST

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