5700A/5720A Series II Calibrator
Service Manual
2-4
2-155. High Voltage Assemblies (A14 and A15)........................................ 2-96
2-156. 1100V AC Range ......................................................................... 2-96
2-157. 1100V DC Range ......................................................................... 2-98
2-158. HVDC Power Supply Filter Circuit ............................................. 2-98
2-159. HV DC Output Series Pass and Current Limit Circuit................. 2-98
2-160. DC HV Amplifier/AC Sense Buffer ............................................ 2-100
2-161. 2.2A Range................................................................................... 2-100
2-162. 2.2A Power Supply Filter Circuit................................................. 2-102
2-163. High Voltage Digital Control....................................................... 2-103
2-164. High Voltage Calibration ............................................................. 2-103
2-165. Calibration of the AC Function.................................................... 2-104
2-166. Calibration of the Current Function. ............................................ 2-106
2-167. High Voltage Magnitude Control................................................. 2-106
2-168. Ohms Overview................................................................................ 2-108
2-169. Ohms Main Assembly (A10)............................................................ 2-109
2-170. Selection of Resistance Values .................................................... 2-109
2-171. Ohms Main Assembly Support of Current Function Calibration. 2-112
2-172. Ohms Digital Control................................................................... 2-112
2-173. Ohms Cal Assembly (A9)................................................................. 2-112
2-174. Ohms CAL Digital Control.......................................................... 2-112
2-175. 1, 1.9, and Short Resistance ......................................................... 2-113
2-176. Two-Wire Ohmmeter Compensation Circuit. .............................. 2-113
2-180. Ohms Calibration ......................................................................... 2-115
2-186. Current/High Resolution Oscillator Assembly Overview (A7)........ 2-121
2-187. Current Section ............................................................................ 2-122
2-199. High-Resolution Oscillator Section ............................................. 2-128
2-204. Rear Panel Assembly (A21) ............................................................. 2-130
2-205. Rear Panel Power Supplies .......................................................... 2-131
2-206. Rear Panel Address Mapping....................................................... 2-131
2-207. Clock Regeneration Circuit.......................................................... 2-132
2-208. IEEE-488 (GPIB) Interface.......................................................... 2-132
2-209. RS-232C Interface........................................................................ 2-132
2-210. Auxiliary Amplifier Interface ...................................................... 2-133
2-211. 5725A Interface............................................................................ 2-133
2-212. Phase Lock In/Variable Phase out................................................ 2-133
2-213. Rear Panel Relay Control............................................................. 2-134
2-214. Rear Panel CPU Interface ............................................................ 2-134
2-215. Wideband AC Module (Option -03)................................................. 2-135
2-216. Wideband Oscillator Assembly (A6) ........................................... 2-135
2-222. Wideband Output Assembly (A5)................................................ 2-138