Service Modes, Error Codes and Fault Finding - L01.1E - SDM/SAM/CSM guide

Oct 12, 2026

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Service Modes, Error Codes and Fault Finding (L01.1E) describes how to prepare and use Service Default Mode (SDM), Service Alignment Mode (SAM), and the Customer Service Menu (CSM) for structured service work on L01 TV chassis. It provides diagnostic test-point overview by functional blocks, required test conditions for measurements, and options to enter SDM via remote code, specific wire shorting, or ComPair software interface. It also lists service-unfriendly protections and explains SDM navigation and exiting procedures.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages13

Reading Time33 min

AccessFree to download

Service Default Mode (SDM)

Test points

Service Modes (SDM, SAM, CSM)

ComPair interface and requirements

Error codes and fault finding

Blinking LED procedure

Protections

Repair tips

How to enter SDM

How to navigate

How to exit

Service Modes, Error Codes and Fault Finding L01.1E 5. GB 13 5 . Service Modes, Error Codes and Fault Finding Index of this chapter: 5.2.1 Service Default Mode (SDM) 1. Test points. 2. Service Modes. Purpose 3. Problems and Solving Tips (related to CSM) . • To create a predefined setting to get the same 4. ComPair. measurement results as given in this manual. 5. Error Codes. • To override SW protections. 6. The Blinking LED Procedure. • To start the blinking LED procedure. 7. Protections. 8. Repair Tips. Specifications • Tuning frequency: 5. 1 Test Points – 475.25 MHz for PAL/SECAM (Europe and AP-PAL) . – 61.25 MHz (channel 3) for NTSC-sets (NAFTA, The chassis is equipped with test points printed on the circuit LATAM and AP-NTSC) . board assemblies. These test points refer to the functional • –Colour sPAL-yMstemfor:LATAM BI/TRI/FOUR-NORMA. blocks: – SECAM L for France. – NTSC for NAFTA and AP-NTSC | TEST POINT OVERVIEW L01 | | | | --- | --- | --- | | Test point | Circuit | Diagram | | A1-A2-A3- | Audio processing | A8, A9 / A11 | | C1-C2-C3- | Control | A7 | | F1-F2-F3- | Frame drive | A3 | | I1-I2-I3- | Tuner & IF | A4 | | L1-L2-L3- | Line drive | A2 | | P1-P2-P3- | Power supply | A1 | | S1-S2-S3- | Synchronisation | A6 | | V1-V2-V3- | Video processing | A5, B1 | CL 16532008_044.eps 210501 Figure 5-1 The numbering is in a logical sequence for diagnostics. Always start diagnosing within a functional block in the sequence of the relevant test points for that block. Perform measurements under the following conditions: • Service Default Mode. • Video: colour bar signal. • Audio: 3 kHz left, 1 kHz right. 5.2 Service Modes Service Default Mode (SDM) and Service Alignment Mode (SAM) offer several features for the service technician, while the Customer Service Menu (CSM) is used for communication between dealer and customer. There is also the option of using ComPair, a hardware interface between a computer (see requirements) and the TV chassis. It offers the ability of structured trouble shooting, error code reading and software version readout for all L01 chassis. Minimum requirements: a 486 processor, Windows 3.1 and a CD-ROM drive. A Pentium Processor and Windows 95/98 are also acceptable (see also paragraph 5.4) . | SW cluster | SW name | UOC-type | Diversity | Remark | | --- | --- | --- | --- | --- | | 2EU0 | L01ET0 x.y | TDA9555 | West Europe, 1 page TXT | All Service Modes | | 2EU9 | L01ET9 x.y | TDA9555 | East Europe,
1 page TXT | All Service Modes | | 3EU1 | L01EF1 x.y | TDA9565 | West Europe,
10 page TXT | All Service Modes | | 3EU2 | L01EF2 x.y | TDA9563 | East Europe,
10 page TXT | All Service Modes | | Abbreviations: E= Europe, F= Full TXT, M= mono, T= 1 page TXT | | | | | CL 16532008_045.eps 210501 . – PAL-BG for Europe and AP-PAL. • All picture settings at 50 %(brightness, colour contrast, hue) . • Bass, treble and balance at 50 %; volume at 25 % . • All service-unfriendly modes (if present) are disabled, like: – (sleep) timer, – child/parental lock, – blue mute, – hotel/hospitality mode – auto switch-off (when no‘IDENT’video signal is received for 15 minutes), – skip / blank of non-favorite presets / channels,– auto store of personal presets, – auto user menu time-out. How to enter SDM Use one of the following methods: • Use a standard customer RC-transmitter and key in the code ‘062596’ directly followed by the MENU button or • Short wires 9631 and 9641 on the mono carrier (see Fig. 8-1) and apply Mains power. Then press the power button (remove the short after start-up) . Caution: Entering SDM by shorten wires 9631 and 9641 will override the +8V-protection. Do this only for a short period. When doing this, the service-technician must know exactly what he is doing, as it could lead to damaging the set. • Or via ComPair. GB 14 5. L01.1E Service Modes, Error Codes and Fault Find

FAQs

What are SDM, SAM, and CSM used for in this chapter?

SDM and SAM provide service features for technicians, while CSM is used for communication between dealer and customer.

How can a technician enter Service Default Mode (SDM)?

SDM can be entered using a standard customer remote with the code 062596 plus MENU, by shorting wires 9631 and 9641 and applying mains power, or via ComPair.

What safety concern is mentioned for entering SDM using wire shorting?

Shortening 9631 and 9641 will override the +8V-protection; it should be done only for a short period and only by a technician who knows exactly what they are doing to avoid damaging the set.

Oct 12, 2026

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