This manual is for units starting with the following S/N's: For KV-27HS420/30HS420/32HS420/34HS420. For KV-29DRC430. 4,000,001 to 4,499,999. This manual is for units starting with the following S/N's: For KV-27HS420/29DRC420/30HS420/32HS420 - S/N 8,000,001 and Up. For KV-34HS420 - S/N 8,000,001 This manual is for units starting with the following S/N's: For KV-27HS420/30HS420/32HS420/34HS420. For KV-29DRC430. 4,000,001 to 4,499,999 KV 34HS420 Service Manual Free - Sony 34 Fd Trinitron Wega Our system has returned the following pages from the Sony KV-34HS420 data we have on file. Carefully observe and comply with all warnings, cautions and instructions placed on the set, or described in the operating instructions or service manual. Find instruction manuals and brochures for KV-34HS420. Setting Service Adjustment Mode . Picture Tube (KV-30HS420/34HS420 Only) . Check the area of your repair for unsoldered or poorly soldered. Service manual for Sony DA-4 chassis KV-27HS420 KV-29DRC430 KV-30HS420 KV-32HS420 KV-34HS420. For KV-27HS420/30HS420/32HS420/34HS420