SONY NWMS11
Manual de Servicio

NW-MS11 SECTION 4 TEST MODE
[Preparation]
Checking consumed electric current is one of the items to check. Connect an ammeter before setting the test mode. (Refer to the following figure)
ammeter regulated dc power supply

+ �

+ � 1.23Vdc

� MAIN BOARD (Conductor Side) �

battery terminal (+)

L9007

battery terminal (�)

R9015

C9007 R8103 120 119 117 113 109 108 105 102 99 1 3 5 9 12 15 18 20 24 25 118 116 114 110 107 104 101 98 2 115 112 111 116 103 100 97 6 8 4 7

C R6037 C8016
96 93 95 92 94 91 82 79

43

56

SL0120

R9019

R8102 R8607

R6901

R6902

R8104

R5003 R5001

R5002

SL0120
17 25 33 41 18 26 34 42 19 27 35 43 20 28 36 44 21 29 37 45 22 30 38 46 23 31 39 47 24 32 40 48

R8608 R8105 R8110

11 10 14 13 17 16 21 19 23 22

IC8000

76 73 70 67 66 49 50 51 52 61 53 55 54 56

C8006

26 27 34 37 40 43 46 28 32 35 38 41 45 47 31 33 36 39 42 44 48

X8000

24 30

R6027

R6028

C8008

1

IC5000

C8004

R6018

C8509

R6903

[Setting the Test Mode]
There are following two methods of entering the test mode. Method 1: Short the short lands (SL0120) on the MAIN board with a solder bridge, then turn on the power. Method 2: Turn on the power with the [HOLD] switch OFF. If the set is left as it is, the LCD display becomes on, and after for a while, it changes into the sleep status (LCD off). Before the status of the display changes into the sleep status, turn ON the [HOLD] switch and press Hs t [MEGA BASS] t Hs t [VOLUME--] t Hs t [VOLUME+] keys in this order.

[Releasing the Test Mode]
There are following two methods of releasing the test mode. In case of enter the test mode with the method 1: Turn off the power and open the solder bridge on the short lands (SL0120) on the MAIN board. In case of enter the test mode with the method 2: Turn off the power.

10

R6035

C8014