diff --git a/artiq/examples/phaser/device_db.pyon b/artiq/examples/phaser/device_db.pyon
index b6a408c9c..5bfaabf9f 100644
--- a/artiq/examples/phaser/device_db.pyon
+++ b/artiq/examples/phaser/device_db.pyon
@@ -38,34 +38,28 @@
         "class": "TTLInOut",
         "arguments": {"channel": 2}
     },
-    "sync": {
-        "type": "local",
-        "module": "artiq.coredevice.ttl",
-        "class": "TTLInOut",
-        "arguments": {"channel": 3}
-    },
     "sawg0": {
         "type": "local",
         "module": "artiq.coredevice.sawg",
         "class": "SAWG",
-        "arguments": {"channel_base": 4, "parallelism": 2}
+        "arguments": {"channel_base": 3, "parallelism": 2}
     },
     "sawg1": {
         "type": "local",
         "module": "artiq.coredevice.sawg",
         "class": "SAWG",
-        "arguments": {"channel_base": 14, "parallelism": 2}
+        "arguments": {"channel_base": 13, "parallelism": 2}
     },
     "sawg2": {
         "type": "local",
         "module": "artiq.coredevice.sawg",
         "class": "SAWG",
-        "arguments": {"channel_base": 24, "parallelism": 2}
+        "arguments": {"channel_base": 23, "parallelism": 2}
     },
     "sawg3": {
         "type": "local",
         "module": "artiq.coredevice.sawg",
         "class": "SAWG",
-        "arguments": {"channel_base": 34, "parallelism": 2}
+        "arguments": {"channel_base": 33, "parallelism": 2}
     }
 }