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- Very good scan quality, PERFECT!
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Wolfgang Sundhaus
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Good site, works ok and you get what you order, no problems experienced, got my manual within a day. A++++
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Original well scanned manual. Got the job done. Microwave problem found & corrected. For $5 and a new magnitron from ebay, it was a cheap and good the first shot fix. Electrical schematics allowed me to mage sure every thing else was ok before cutting and order for parts. Hard to live without.
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I was very skeptical of this website, I have never downloaded manuals before. I put it on the AMEX and payed through Paypal to ensure protection. I got the manual exactly as described and now I can replace the filter capacitor for this amp. Great Price, others selling for 12.99 or more and this is the same manual. I will search out this website for other manuals. Thank you
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Manual was reasonably easy to follow. I am not an engineer or know much about electronics but with the manuals help I was able to figure out the problem, identify the part required for the repair. Replacement part cost around $30. Whilst replacing the part I was telling myself, "this aint gonna work cos it seems far too easy". Took about 15 minutes to do and my plasma TV works a treat. Would never have been able to do this without the service manual.
5
6
7
8
7.1.7 TROUBLE SHOOTING
No.
1
Symptoms
The power is not turned on.
Diagnosis Contents
Check the voltage of EV+4V, �28V and FLDC on the POWER SUPPLY Unit. Are wires of output connector (POWER SUPPLY Unit) and CN401 (DVDM Assy) disconnected or damaged ? Check that the following voltage is output : IC403-pin 5 : 3.3V on the DVDM Assy Check that the voltage at IC101-pin 22 (KEY0) on the FLKY Assy becomes 0 V when the POWER key is pressed and 3.3 V when it is released.
Possible Defective Points
POWER SUPPLY Unit
A
Connector / cable 3.3V Regulator IC (IC403) FLKY Assy Tact SW (when operation of only the POWER key on the main unit is not accepted)
FLKY Assy Check that the voltage at IC101-pin 17 (SEL IR) on the FLKY Assy is in Remote receiver section the range between 0 and 3.3 V while receiving signals from the remote (when operation of only the control unit when any key on it is pressed. POWER key on the remote control unit is not accepted) 2 An opening screen is not Is the level at both IC101-pin 12 (XRESET) and pin 11 (POWER ON) FLKY Assy displayed on the monitor on the FLKY Assy "H" ? FL Control IC (IC101) (The FL display lights. The � Check the voltage of E+6.8V and SW+3.3V on the POWER SUPPLY mechanism does not work.) Unit. POWER SUPPLY Unit � Check the voltage of P-CONT is about 3V on the POWER SUPPLY Unit. DVDM Assy Check that the following voltage are output : 5V Regulator IC (IC401) IC401-pin 5 : 5V, IC402-pin 5 : 2.5V on the DVDM Assy. 2.5V Regulator IC (IC402) DVDM Assy Is a resonator (X601 : 27MHz) on the DVDM Assy oscillating ? � Is a signal input into IC603-pin26 (PCE#) on the DVDM Assy ? (Is a signal "H" for 80 mS and then "L" after the power is turned on ?) � Communication with flash ROM. � Are the signals input into IC602-pin 16 (DWE#), pin 19 (DCS#) and pin 38 (SDCLK) on the DVDM Assy ? (Is a signal fluctuating ?) � Communication with SDRAM Crystal resonator (X601)
B
C
DVDM Assy DVD IC (IC601) Flash ROM (IC603) SDRAM (IC602)
Is a signal output from IC603-pin 28 (PRD#) on the DVDM Assy? DVDM Assy (Is a signal fluctuating for several hundred mS after the power is turned Flash ROM (IC603) on ?) DVDM Assy Is a signal input into IC101-pin 16 (ACK) on the FLKY Assy ? DVD IC (IC601) (Is a signal fluctuating ?) FLKY Assy � Communication with FL Control IC FL Control IC (IC101) Is a signal output from IC101-pin 10 (XREADY) on the FLKY Assy ? FLKY Assy (Is a signal fluctuating in the range of 0-3V ?) FL Control IC (IC101) DVDM Assy Are the signals output from IC101-pin 9, pin 8 and pin 7 on the FLKY DVD IC (IC601) � Assy ? FLKY Assy (in the range of 0-3V) FL Control IC (IC101) communication line Are the signals of IC60-pin 5(SDA) and pin 6(SCL) on the DVDM Assy DVDM Assy fluctuating for one or two seconds after the power is turned ? EEPROM (IC60) 3 An opening screen is not DVDM Assy displayed on the monitor Check the video signal path between DVD IC (DVDM Assy IC601) and Video circuit after DVD IC (The FL display lights. The video-out terminal (see the block diagram) (IC601) mechanism does not work.)
D
E
F
DV-270-S
5 6 7 8
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