Awesome manual. Complete diagrams of all board assemblies as well as how to get to each part of the t.v. down to the individual screws and their locations. Get it.
Text excerpt from page 19 (click to view)
MANUAL TEST MODE Set the Test Mode: 1. Enter the test mode by pressing key while pressing 1 and TALK keys when in idle condition. (Key operation n 1 n TALK ) Release the Test Mode: 1. Press the OFF key. 2. Turn off the power. (Remove the battery and replace them.) MACHINE TEST MODE Set the Test Mode: 1. Connect between TP316 (TEST I/O) and GND. 2. Set the Channel Setting terminal. (See page 20.) 3. Turn on the power to start the test mode. Release the Test Mode: 1. Turn off the power. 2. Remove the short plug and turn on the power.
OPERATION AT START OF TEST MODE â¢ The ringer sounds for 500 msec. â¢ Setting of channel: CH1 for manual test mode and the Channel Setting terminal for machine test mode. (See page 20.) â¢ TX is set ON and the handset is allowed to call outside. RSSI is set to Hi sensitivity. â¢ Liquid crystal display panel is turned ON for 1 sec. and then the channel is displayed (for example, Ch1 CH1=01). Back light is to be still ON.