The service was quick and simple, finding the service manual easy and it appears to be the original with colour schematics. It contained the info I was after and so sorted the problem.
I have copied it to CD and attached the envelope to the inside back cover of the owners manual. Good manual and excelent service. Robin Wood, Wood Electronics, New Zealand.
Nice to have the service manual for the Sony DCR-TRV345E now. The document is of excellent quality.
Text excerpt from page 46 (click to view)
CHAPTER 2. TECHNICAL DESCRIPTION
2.2.2 Picture Processing
1) The drive pulse of the CCD sensor is created by both clock from DSP and TG that is operated by sync. signal. The picture signal by the drive pulse is output from CCD sensor. The output signal of the CCD picture is converted to the signal processing and the digital data by the CDS and A/D converter, and is sent to the DSP. 2) The DSP circuit performs the following signal processing. � Processes the picture data (using the SDRAM). � Writes and reads the picture data to and from the CF card. � Outputs analog video signal to the LCD. 3) The video signal that is supplied form the DSP is controlled by the LCD driver and is displayed on the LCD.