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ＨＡ８９３（Ｖ）Ｐ／ＴＳＤＬ电话机免提通话电路分析及常见故障修理廖惜春ＨＡ８９３（Ｖ）Ｐ／ＴＳＤＬ电话机是一种性能较好的多功能按键式电子电话机。该话机通话电路有手柄通活和兔提通话两部分。手柄通话电路以ＧＦ１０６２为核心，免提通话电路如图１所示。一、发...
HA893 (V) P / TSDL Phone Speakerphone Circuit Analysis and Troubleshooting Liao Xichun HA893 (V) P / TSDL phone is a better performance multi-function button-type electronic phone. The phone call circuit has a handle Tonghuo and rabbit to mention two parts. Joystick communication circuit to GF1062 as the core, hands-free circuit shown in Figure 1. First, hair ...