Philips-DVDR-3395-Service-Manual电路原理图.pdf

Service Manual CONTENTS 1. Specification. 1-1 2. Product Validation Strategies and Process 2.1 System Block Diagram . 2-1 2.1.1Front panel introuction. 2-2 2.1.2Rear Panel introuction. 2-3 3. Test Tool Instruction . 3-1 4. Fault Finding Tree Mono scope or Dot pattern has no tilt or twisted effect; The RGB picture as below has normally good effect to the naked eyes. If anything undeterminable, please refer to the following factors to evaluate: Video Performance (The test appliance is Tektronix VM 700/s-video VM500/Component): DA Converter 10-bit/54 MHZ Composite Output 1Vpp &5 Ohm S-video Output Y: 1Vpp 75Ohm C: 0.3Vpp 75 Ohm Component Output Y: 1Vpp 75Ohm Pb: 0.7 Vpp 75 Ohm Pr: 0.7 Vpp 75 Ohm 2). Speaker & Sound Signal Test is to test its output audio fineness and locating efficiency of the speaker. Note of Step: Select no.2 - Speaker & Sound Signal Test in the login. The test will check the locating efficiency and audio signal as well as special frequency. ¾ Test Criteria: The standard audio output is clear without popping and the signal output from Hi-Fi is normal. 3-3 If anything undeterminable, please refer to the following factors to evaluate: Audio Performance (The test appliance is Audio position SWR-2122U) DA converter 24 bit /192KHZ AD converter 24-bit Signal-Noise (1kHZ) 90dB Dynamic range(1kHZ) 80dB Cannel Separation(1kHZ) 80dB Total Harmonic Distortion(1kHZ) -65dB 3). Music Demo test is to check the video output signal good without noise. 4). Video Demo test is to check the normal function of subtitle, language, angle and so on. Login in the main test menu for no.4 Video Demo and press the key of “Navi” on remote to choose “Subtitle” “Audio” and “Angle” to check the normal function. Navi button3-4 5). Karaoke Demo Test: 3.3 Items of the DVD disc in common use when rma 5.3.1 Necessary Repairing tools in need to test the following 3 items: A. Video output B. Audio output C. AV output (film) 5.3.2 Note of step: STEP1: A. Insert the DVD VIDEO 5-1 / 5-2P disc and it will auto playback B.Press the key of “Top Menu” on remote to login the menu