This was the Sony CCU-500A Service manual I was looking for.
The price was reasonable.
The permission to download was quck.
I will use Owner-Manual.com for all my manual needs.
SPECIFICATIONS
Type Power requirement Current drain Electret capacitor 8.0 V DC ±10 % 35 mA or less 65 x 90 x 30 mm Dimensions (WxHxD) 2 9/16 x 3 17/32 x 1 3/16 inches Weight Approx. 180 g/ 6.3 oz �52 ±3 dB (at 1 kHz) Sensitivity (0 dB = 1 V/Pa)