76
XR-A550MD
1
High refective disc
TGYS1 (SONY)[for playback]
124 636 0001
TGYS1
2
Low refective disc
Recording minidisc
124 957 0001
GGF1277
3
Transparent disc for adjustment head
124 957 0002
GGF1276
Type
Test Disc
Code
Part Number
6.4.2 Test Mode 2
6.4.2.1 Preparations
Test Disc
1
Extension board for servicing
124 685 0044
GGF1320
2
2-pin extension connector for servicing
124 512 0059
GGD1108
3
6-pin extension connector for servicing
124 512 0323
GGD1181
4
5-pin flat cable for servicing
124 512 0325
GGD1182
5
28-pin flat cable for servicing
124 512 0324
GGD1180
Type
Code
Part Number
Extension Cable (Refer to Fig.7)
6.4.2.2 Test Mode
Fig.1 Test Mode Short Point
• Short the TEST 2 terminal while the power is ON.
MD MAIN ASSY
G
SIDE A
(FRONT)
TEST MODE 2
TEST MODE : ON
Test Mode Types
Test Mode
Entering
Application
the Test Mode
TEST 1
TEST 1 short
CA Check
TEST 2
TEST 2 short
For MD Mechanism Adjustment
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