Panasonic SC-TM23 Service Manual

Contents

Panasonic SC-TM23 Service Manual Manual pdf 41 page image

4113 CD Test Mode FunctionThis CD test mode is provided to check CD unit without connecting to changer loading mechanism. This mode shall operateCD PLAY with CD unit being connected only and CD Automatic Alignment result is shown on FL display.13.1 How to set CD test mode13.2 CD Automatically Adjustment resultindicationUnder CD test mode, pressing the numeric key ‘0’ on theremote controller will display the auto adjustment result.FLOCK, TLOCK and CLVS status shall be shown as below:During the above display, executing CD PLAY will display autoadjustment result for CD PLAY mode.13.3 CD Mecha Aging Test Mode (CR20)13.4 Micon ROM Checksum and VersionDisplay Mode1. Functional summary of CD aging test modeIt is for the purpose to determine the reliability of the CDchanger.2. To enter into CD aging test modea) First, enter into self-diagnostic mode (Refer toSection 12.2. How to enter the Self-Diagnostic Function)b) In the self-diagnostic mode, switch the SELECTORto and press. It will enter into CD aging test mode.When in CD Aging test mode, the following operation willbegin and repeated:1. [DISC STOCKER] DISC LOAD TRAY OPEN (2secs) TRAYCLOSE] as one count.2. DISC 1 DISC 2 DISC 3 DISC 4 DISC 5DISC1........repeating this endlessly.· While performing the above operation, the FLdisplay will show the number of its operations starting from00001. With reference to figure as below.· It shall move up one counter when the aboveoperations ends. The counter will reset to 00000 when 99999is reached.· To exit CD aging test mode, pressbutton, the tray will return to its PLAYposition and power will be off.1. Functional SummaryDisplay version number and calculated checksum of themicon software.2. To enter into Micon ROM checksum andVersion Display Mode.a) Enter into Self-Diagnostic Mode (Refer toSection 12.2).b) In the Self-Diagnostic Mode, Presstwice.The version number and the calculated ROM Checksum ofthe current software will be displayed on the FL as shown inthis example:* Note: The Software Version No. & Micon SoftwareChecksum differs from set to set.· The ROM Checksum is calculated on demand, nothard coded.· The ROM Checksum is calculated by talking thearithmetic SUM of the ROM contents form the programs’sSTART address until the END address.START address = [1080]HEND address = [FFFD]H