Telefunken TF-LED15S27 Скачать руководство пользователя страница 16 | Manualshive

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background image

No sound

If Any audio signal input or

amplifier power supply normal

Check

External audio

equipment

：

Amplifier power

supply circuit

U1

（

NS4263

）

6/11

Pin have signal input

N

Y

Y

N

Check the Volume,

MUTE settings

Reset

If any signal

output of J5/J7

Y

N

Check

external

Speaker

Check amplifier

power supply circuit

Check U6 audio input pin

has the signal output

N

Y

N

Y

Maintenance U6

Maintenance U1 & U6

Connect part

network

Figure.4 Audio Unit (no sound)

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Содержание TF-LED15S27

Страница 1: ...Service Manual Part1 Exploded View Part2 Circuit Diagram Part3 Common problems solution ...

Страница 2: ......

Страница 3: ......

Страница 4: ......

Страница 5: ...L12 6 8uH 2A L12 6 8uH 2A U2 BL1117 ADJ U2 BL1117 ADJ VIN 3 ADJ 1 VOUT 2 Vout1 4 Q5 MMBT3904 Q5 MMBT3904 1 2 3 C20 100nF C20 100nF Q2 MMBT3904 Q2 MMBT3904 1 2 3 Q1 3407 Q1 3407 3 1 2 R32 47K_1 R32 47K_1 Q10 MMBT3904 Q10 MMBT3904 1 2 3 C64 10uF X5R C64 10uF X5R C40 100nF C40 100nF C65 10uF C65 10uF C44 10uF X5R C44 10uF X5R C33 100nF C33 100nF J2 J2 3 3V 1 5V 3 VCC Panel 2 R91 0R R91 0R SY8120B 2A ...

Страница 6: ...要可以使用2MByte 如果不使用MM功能则Flash默认为512K 主IC选用TSUMV29LU时不具有MM功能默认使用512KByte TSUMV29 39LU L102 FB MST6M182XX L102 NC 主要是做SCART 信号的FS输入 R73 68R R73 68R C26 100nF C26 100nF R41 1 5K R41 1 5K C105 47nF C105 47nF R12 10K R12 10K C92 1nF C92 1nF R78 4 7K NC R78 4 7K NC R67 4 7K R67 4 7K R13 3K R13 3K C91 1u C91 1u C107 100nF C107 100nF R84 100K R84 100K R36 10K R36 10K R50 0R NC R50 0R NC R121 68R R121 6...

Страница 7: ...Title Size Document Number Rev Date Sheet of 04 HDMI USB 1 0 CVMV29L F 12 Custom 4 7 Wednesday April 24 2013 Title Size Document Number Rev Date Sheet of 04 HDMI USB 1 0 CVMV29L F 12 Custom 4 7 Wednesday April 24 2013 R110 33R R110 33R J10 PH 4A_USB NC J10 PH 4A_USB NC GND 1 DP 2 DM 3 5V 4 C79 100nF C79 100nF C9 10uF C9 10uF Q11 MMBT3904 Q11 MMBT3904 1 2 3 R109 33R R109 33R R127 10K R127 10K J12 H...

Страница 8: ...22XX0 B000 LK ROHS R88 10K R88 10K R104 0R R104 0R R71 75R R71 75R R134 33R R134 33R R114 33R R114 33R R46 0R R46 0R R120 33R R120 33R R92 75R R92 75R R61 75R R61 75R R100 10K R100 10K R117 33R R117 33R R131 75R R131 75R J4 HEAD 2x2 双排针 DIP 2 2 2 0mm 针长 6mm 塑高 4 00mm 90度公座 LK HEPHM20022020 B002 LK ROHS J4 HEAD 2x2 双排针 DIP 2 2 2 0mm 针长 6mm 塑高 4 00mm 90度公座 LK HEPHM20022020 B002 LK ROHS GND 1 L 2 R...

Страница 9: ... AS 16 IC2 17 GND3 18 IC3 19 SDA 20 SCL 21 MS 22 IF_OUTP 23 IF_OUTN 24 GPIO2 25 IF_AGC 26 IC4 27 VCC_IF 28 GND_IF 29 DR_CAP 30 GPIO1 31 VCC_RF 32 DIR 33 C117 100n C117 100n R56 68R R56 68R D3 BAV99_NC D3 BAV99_NC 1 2 3 R138 100R R138 100R L15 0R L15 0R C118 100n C118 100n C115 22p C115 22p C71 220n C71 220n CA4 100uF 16V CA4 100uF 16V 1 2 R66 NC R66 NC L9 220nH 120mA 5 L9 220nH 120mA 5 C84 100nF C...

Страница 10: ...同相输出进入单端模式在D类桥式输出3W条件下插入耳机 L_ R_峰峰值为5 3V R7 R8选为910R C3 10uF C3 10uF R10 1K R10 1K R3 510R R3 510R J5 XH 4A_SPEAKER J5 XH 4A_SPEAKER ROUT 1 ROUT 2 LOUT 3 LOUT 4 C1 100nF C1 100nF R2 1K R2 1K C14 22nF NC C14 22nF NC C10 3 3nF C10 3 3nF R1 33K R1 33K CA2 470uF CA2 470uF C2 22nF NC C2 22nF NC L1 1000R FB L1 1000R FB L2 1000R FB L2 1000R FB R45 4 7K R45 4 7K R42 33K R42 33K L10 1000R FB L10 1000R FB...

Страница 11: ... System Chart Power Units Problem Solving Display Units Problem Solving Audio Units Problem Solving Functional Units Problem Solving CV29L F 12 Common problems solution ...

Страница 12: ...CV29L F 10 System Block SPI YPBPR HDMI R620D Moudle Earphone Spare Voltage USB 2M 4M Flash VGA RGB NS4263 LCD AV2_AUDIO TSUMV39LU RF LVDS AV2 MAIN_R L AV1 AV1_AUDIO RGB0 PC_AUDIO TSUMV59XU TSUMV29LU ...

Страница 13: ... boot Figure 1 Power Units Problem Solving Y N OK Check U5 U7 U4 power supply net N Y N Y Check external power After power on Check Test point TP6 have 5V Test point TP7 have 3 3V Test Point TP1 have 2 5V 1 8V TSUMV29LU is 2 5V TSUMV59XU is 1 8V Q8 Q9 Burnout or load short circuit Check power chip LDO U2 work ...

Страница 14: ...Y N Change LCD N Y Check the network output J3 cable socket Works normal Y Check U6 TSUMV29LU Power supply and clock circuit chip LVDS output pin is short circuit or open circuit Change the circuit Figure 2 Display Unit black screen N Check LCD power VCC Panel is ok J2 select is right Q1 output voltage is ok Check the software match RE Upgrade software N Y ...

Страница 15: ...J8 No 5 6 pin Have or not 12V Check the Inverter power supply 4pin of J8 output voltage is over 3 3V Check power supply circuit N N Y Y Maintenance power Inverter broke or bad wire connection Figure 3 Display Unit black screen ...

Страница 16: ... circuit U1 NS4263 6 11 Pin have signal input N Y Y N Check the Volume MUTE settings Reset If any signal output of J5 J7 Y N Check external Speaker Check amplifier power supply circuit Check U6 audio input pin has the signal output N Y N Y Maintenance U6 Maintenance U1 U6 Connect part network Figure 4 Audio Unit no sound ...

Страница 17: ...heck power supply circuit of L15 Y N Check Tuner No 9 10 pin of U9 Have I2C data Check pull up voltage of I2C network is Ok N Y Check No 5 6 pin of U9 have IF signal N Check connect circuit Y Check external circuit of U9 is OK N Y Repair its outer circuit N Y Check video BPF circuit and U6 TSUMV29LU connect network Change Tuner Check BPF U9 direct connect network is OK ...

Страница 18: ...nd only picture Check the sound of PC and AV N Y See NO SOUND repair guide Figure 6 Function Unit ATV with the image but no sound Check the connect net of BPF and U9 Check the connect net of BPF and U6 TSUMV29LU ...

Страница 19: ... U6 TSUMV29LU R G B input signal works well Reset the system settings Y N VS HS signal Stable and well Check VS HS Circuit OSD settings Or input mode not correct Reset it Check VS HS Circuit Y N Check VGA circuit connection Check VGA circuit connection Check VGA input circuit Figure 7 Function Unit PC ...

Страница 20: ...lor cast All no signal The system is incorrect re set settings Check VGA R G B Input network Check U6 TSUMV29LU Power supply U6 TSUMV29LU R G B Input signal is normal Y N Figure 8 Function Unit VGA VGA socket contact is ok ...

Страница 21: ...und is ok in PC Check HDMI and the input network Check HDMI and input network U6 TSUMV29LU HDMI and relevant network Figure 9 Function Unit HDMI Check If the sound is ok in PC Y N See the repairs guide No Sound Solution Y Check HDMI connection N ...

Страница 22: ...YPBPR YPBPR Color cast No signal Y PB PR input signal network Check U6 external circuit and Crystal circuit Figure 10 Function Unit YPBPR ...

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