(Recasts with U.S. data; changes byline, dateline, previous LONDON)
* Dollar on track for 2nd week of gains
* Investors await U.S. nonfarm payrolls on Friday
* Pound drops after dovish BoE releases
By Gertrude Chavez-Dreyfuss
NEW YORK, Aug 6 (Reuters) - The dollar edged lower against major currencies in choppy trading on Thursday, in a week that has seen the greenback on a generally firmer trend, as investors balanced their positions ahead of Friday's crucial U.S. nonfarm payrolls report.
The dollar index was still on track for a second straight week of gains, or a two-week gain of about 0.7 percent .DXY , lifted by a batch of economic data that, overall, has reinforced expectations that the U.S. Federal Reserve will raise interest rates next month.
Sterling, meanwhile, fell following a dovish message from the Bank of England, with only one member voting for an immediate rate hike versus expectations for at least two members.
"We've had a mixed bag of U.S. data this week, but it has been generally positive, positive enough to keep the September move by the Fed on the table," said Omer Esiner, chief market analyst at Commonwealth Foreign Exchange in Washington.
Investors are bracing for Friday's U.S. employment report, which economists expect to show that 223,000 jobs were created in July. On Thursday, U.S. jobless claims rose from the previous week, but the trend us clearly positive.
"The key difference between last week and this week is that we are one week closer to the Fed's rate hike," said Stephen Jen, a partner at SLJ Macro Partners in London.
"The economic data doesn't need to accelerate for the Fed to pull the trigger; the Fed only needs to see the recent trends extending for another few weeks."
Market participants were also focused on the BoE message.
The Bank of England pointed to a possible increase in interest rates early next year, after only one of its top policymakers backed an immediate move and the bank forecast any pickup in inflation from zero would be slow due to a strong pound.
The pound fell against the dollar and euro. Sterling fell 0.6 percent to $1.5508 GBP= , while the euro rose 0.6 percent versus the pound to 70.36 pence EURGBP= .
The dollar, on the other hand, was slightly lower versus the yen, at 124.76 yen JPY= , while the euro was up marginally against the greenback at $1.0914 EUR=.
The dollar index was flat at 97.94.
The Swiss franc, meanwhile, hit its lowest against the euro since March 10 after a survey showed consumer sentiment fell in July to its lowest since autumn 2011.
In mid-morning trading, the euro rose 0.4 percent to 1.0712 francs EURCHF= , while the dollar gained 0.3 percent to 0.9816 franc CHF= .